10-K

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

________________________________________

FORM 10-K

________________________________________

ý ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the fiscal year ended: March 31, 2015

or

¨ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the transition period from to

Commission file number: 1-9344 

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AIRGAS, INC.

(Exact name of registrant as specified in its charter)

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Delaware	56-0732648
(State or other jurisdiction of incorporation or organization)	(I.R.S. Employer Identification No.)
259 North Radnor-Chester Road, Suite 100 Radnor, PA	19087-5283
(Address of principal executive offices)	(ZIP code)

(610) 687-5253

(Registrant’s telephone number, including area code)

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Securities registered pursuant to Section 12(b) of the Act:

Title of Each Class	Name of Each Exchange on Which Registered
Common Stock, par value $0.01 per share	New York Stock Exchange
Preferred Stock Purchase Rights	New York Stock Exchange
Securities registered pursuant to Section 12(g) of the Act: None.

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Indicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act.

Yes  ý    No  ¨

Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or Section 15(d) of the Act.

Yes  ¨   No  ý

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.    Yes  ý    No  ¨

Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Web site, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files).    Yes  ý    No  ¨

Indicate by check mark if disclosure of delinquent filers pursuant to Item 405 of Regulation S-K is not contained herein, and will not be contained, to the best of the registrant’s knowledge, in definitive proxy or information statements incorporated by reference in Part III of this Form 10-K or any amendment to this Form 10-K. ¨

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer or a smaller reporting company. See the definitions of “large accelerated filer,” “accelerated filer” and “smaller reporting company” in Rule 12b-2 of the Exchange Act.

Large accelerated filer	ý	Accelerated filer	¨
Non-accelerated filer	o	Smaller reporting company	¨

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).    Yes  ¨   No  ý

The aggregate market value of the 67,204,134 shares of voting stock held by non-affiliates of the registrant was approximately $7.4 billion computed by reference to the closing price of such stock on the New York Stock Exchange as of the last day of the registrant’s most recently completed second quarter, September 30, 2014. For purposes of this calculation, only executive officers and directors were deemed to be affiliates.

The number of shares of common stock outstanding as of May 22, 2015 was 75,513,636.

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DOCUMENTS INCORPORATED BY REFERENCE

Portions of the Company’s Proxy Statement for the 2015 Annual Meeting of Stockholders (when it is filed) will be incorporated by reference into Part III of this Report.

AIRGAS, INC.

FORM 10-K

March 31, 2015

TABLE OF CONTENTS

ITEM NO.		PAGE
	PART I
1.	Business	4
1A.	Risk Factors	11
1B.	Unresolved Staff Comments	14
2.	Properties	14
3.	Legal Proceedings	14
4.	Mine Safety Disclosures	14
	PART II
5.	Market for Registrant’s Common Equity, Related Stockholder Matters and Issuer Purchases of Equity Securities	14
6.	Selected Financial Data	17
7.	Management’s Discussion and Analysis of Financial Condition and Results of Operations	19
7A.	Quantitative and Qualitative Disclosures About Market Risk	40
8.	Financial Statements and Supplementary Data	41
9.	Changes in and Disagreements With Accountants on Accounting and Financial Disclosure	41
9A.	Controls and Procedures	41
9B.	Other Information	42
	PART III
10.	Directors, Executive Officers and Corporate Governance	42
11.	Executive Compensation	43
12.	Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters	43
13.	Certain Relationships and Related Transactions, and Director Independence	43
14.	Principal Accountant Fees and Services	43
	PART IV
15.	Exhibits and Financial Statement Schedules	43
	Signatures	46

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PART I

ITEM 1. BUSINESS.

GENERAL

Airgas, Inc., together with its subsidiaries (“Airgas,” the “Company,” “we,” “our” or “us”), became a publicly-traded company on the New York Stock Exchange in 1986. Through a combination of organic growth initiatives and acquisitions in both its core and adjacent lines of business, the Company has become one of the nation’s leading suppliers of industrial, medical and specialty gases, and hardgoods, such as welding equipment and related products. Airgas is a leading U.S. producer of atmospheric gases, carbon dioxide, dry ice and nitrous oxide, one of the largest U.S. suppliers of safety products, and a leading U.S. supplier of refrigerants, ammonia products and process chemicals. Airgas’ production network and supply agreements, full range of gas supply modes (from cylinders to truckload quantities to on-site pipeline supply) and national footprint make it one of the few fully-integrated industrial gas companies in the U.S. The Company also offers supply chain management services and solutions, and product and process technical support across many diverse customer segments.

The Company markets its products and services through multiple sales channels, including branch-based sales representatives, retail stores, strategic customer account programs, telesales, catalogs, e-Business and independent distributors. Products reach customers through an integrated network of approximately 17,000 associates and more than 1,100 locations, including branches, retail stores, gas fill plants, specialty gas labs, production facilities and distribution centers. The Company’s product and service offering, full range of supply modes, national scale and strong local presence offer a competitive edge to its diversified base of more than one million customers.

The Company’s consolidated net sales were $5.30 billion, $5.07 billion and $4.96 billion in the fiscal years ended March 31, 2015, 2014 and 2013, respectively. The Company’s operations are predominantly in the United States. While the Company does conduct operations outside of the United Statesin Canada, Mexico, Russia, Dubai and several European countries, revenues from foreign countries represent less than2%of the Company’s net sales. Information on revenues derived from foreign countries as well as long-lived assets attributable to the Company’s foreign operations can be found in Note 21 to the Company’s consolidated financial statements under Item 8, “Financial Statements and Supplementary Data.”

Since its inception, the Company has made more than 450 acquisitions. During fiscal 2015, the Company acquired14businesses with aggregate historical annual sales of approximately$55 million. The Company acquired these businesses in order to expand its geographic coverage to facilitate the sale of industrial, medical and specialty gases, and related supplies. See Note 3 to the Company’s consolidated financial statements under Item 8, “Financial Statements and Supplementary Data,” for a description of current and prior year acquisition activity.

The Company has two business segments, Distribution and All Other Operations. The businesses within the Distribution business segment offer a portfolio of related gas and hardgoods products and services to the end customers. The All Other Operations business segment consists of five business units which primarily manufacture and/or distribute carbon dioxide, dry ice, nitrous oxide, ammonia and refrigerant gases. Financial information by business segment can be found in Item 7, “Management’s Discussion and Analysis of Financial Condition and Results of Operations” (“MD&A”), and in Note 21 to the Company’s consolidated financial statements under Item 8, “Financial Statements and Supplementary Data.” A more detailed description of the Company’s business segments follows.

DISTRIBUTION BUSINESS SEGMENT

The Distribution business segment accounted for approximately 90% of consolidated net sales in each of the fiscal years 2015, 2014 and 2013.

Principal Products and Services

The Distribution business segment’s principal products include industrial, medical and specialty gases sold in packaged and bulk quantities, as well as hardgoods. The Company’s air separation facilities and national specialty gas labs primarily produce gases that are sold by the various regional and other business units within the Distribution business segment as part of the complementary suite of similar products and services for the Company’s customers. Gas sales primarily include: atmospheric gases including nitrogen, oxygen and argon; helium; hydrogen; welding and fuel gases such as acetylene, propylene and propane; carbon dioxide; nitrous oxide; ultra high purity grades of various gases; special application blends; and process chemicals. Within the Distribution business segment, the Company also recognizes rent revenue derived from the rental of its gas cylinders, cryogenic liquid containers, bulk storage tanks, tube trailers and welding-related and other equipment. Gas and rent represented 59%, 60% and 59% of the Distribution business segment’s sales in fiscal years 2015, 2014 and 2013, respectively. Hardgoods consist of welding consumables and equipment, safety products, construction supplies, and

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maintenance, repair and operating supplies. Hardgoods sales represented 41%, 40% and 41% of the Distribution business segment’s sales in fiscal years 2015, 2014 and 2013, respectively.

Principal Markets and Methods of Distribution

The industry has three principal modes of gas distribution: on-site or pipeline supply, bulk or merchant supply, and cylinder or packaged supply. The on-site mode includes the supply of gaseous product to a customer facility via pipeline from a gas supplier’s plant located on or off the customer’s premises. The bulk mode consists of the supply of gases to customers in liquid form in full and partial truckload quantities or in gaseous form in tube trailers. The packaged gas mode includes: the supply of gases to customers in gaseous form in cylinders; in liquid form in less-than-truckload quantities of bulk, also known as microbulk; or in liquid form in portable cryogenic vessels known as dewars. Generally, packaged gas distributors, including the Company and its competitors in the packaged gas market, also supply welding-related hardgoods required by customers to complement their use of gases.

The Company participates in all three modes of supply to varying degrees, with the packaged supply mode representing the most significant portion of its gas sales. The Company is one of the nation’s leading suppliers in the U.S. packaged gas and welding hardgoods market, with an estimated share of more than 25%. The Company’s competitors in this market include local and regional independent distributors which are estimated to account for nearly half of the market’s annual revenues, and certain vertically-integrated gas producers, which account for the remainder of the market.

The Company markets its products and services through multiple sales channels, including branch-based representatives, retail stores, telesales, strategic customer account programs, catalogs, e-Business, and other distributors. Packaged gases and welding-related hardgoods are generally delivered to customers on Company-owned or leased trucks, although third-party carriers are also used in the delivery of welding-related hardgoods and safety products. Packaged gas distribution is a localized business because it is generally not economical to transport gas cylinders more than 50 to 100 miles from a plant or branch. The localized nature of the business makes these markets highly competitive and competition is generally based on reliable product delivery, product availability, technical support, quality and price.     

Customer Base

The Company’s operations are predominantly in the United States. The Company’s customer base is diverse and sales are not dependent on a single or small group of customers. The Company’s largest customer accounts for less than1%of total net sales. The Company estimates the following industry segments account for the approximate indicated percentages of its net sales:

• Manufacturing & Metal Fabrication (29%)

• Non-Residential (Energy & Infrastructure) Construction (14%)

• Life Sciences & Healthcare (14%)

• Food, Beverage & Retail (13%)

• Energy & Chemical Production & Distribution (12%)

• Basic Materials & Services (12%)

• Government & Other (6%).

Supply

The Company’s atmospheric gas production capacity includes 16 air separation plants that produce oxygen, nitrogen and argon, making Airgas the fifth largest U.S. producer of atmospheric gases. In addition, the Company purchases atmospheric and other gases pursuant to contracts with national and regional producers of industrial gases. The Company is a party to take-or-pay supply agreements under which Air Productsand Chemicals, Inc. (“Air Products”)will supply the Company with bulk nitrogen, oxygen, argon, hydrogen and helium. The Company is committed to purchase a minimum of approximately$66 millionin bulk gases within the next fiscal year under the Air Products supply agreements. The agreements expire at various dates through2020. The Company also has take-or-pay supply agreements withThe Linde Group AG (“Linde”) to purchase oxygen, nitrogen, argon and helium. The agreements expire at various dates through2025and represent approximately$99 million in minimum bulk gas purchases for the next fiscal year. Additionally, the Company has take-or-pay supply agreements to purchase oxygen, nitrogen, argon, helium and ammonia from other major producers. Minimum purchases under these contracts for the next fiscal year are approximately$36 millionand they expire at various dates through2024. The level of annual purchase commitments under the Company’s supply agreements beyond the next fiscal year vary based on the expiration of agreements at different dates in the future, among other factors.

The Company’s annual purchase commitments under all of its supply agreements reflect estimates based on fiscal2015purchases. The Company’s supply agreements contain periodic pricing adjustments, most of which are based on certain

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economic indices and market analyses. The Company believes the minimum product purchases under the agreements are within the Company’s normal product purchases. Actual purchases in future periods under the supply agreements could differ materially from those presented due to fluctuations in demand requirements related to varying sales levels as well as changes in economic conditions.If a supply agreement with a major supplier of gases or other raw materials was terminated, the Company would attempt to locate alternative sources of supply to meet customer requirements, including utilizing excess internal production capacity for atmospheric gases. The Company purchases hardgoods from major manufacturers and suppliers. For certain products, the Company has negotiated national purchasing arrangements. The Company believes that if an arrangement with any supplier of hardgoods was terminated, it would be able to negotiate comparable alternative supply arrangements.

ALL OTHER OPERATIONS BUSINESS SEGMENT

The All Other Operations business segment consists of five business units, which in aggregate accounted for approximately 10% of sales in each of the fiscal years 2015, 2014 and 2013. The primary products produced and/or supplied are carbon dioxide, dry ice (carbon dioxide in solid form), nitrous oxide, ammonia and refrigerant gases. The following sections describe the primary products offered by the Company through the business units within the All Other Operations business segment in further detail.

Carbon Dioxide & Dry Ice

Airgas is a leading U.S. producer of liquid carbon dioxide and dry ice. Customers for carbon dioxide and dry ice include food processors, food service businesses, various businesses in the pharmaceutical and biotech industries, and wholesale trade and grocery outlets, with food and beverage applications accounting for approximately 70% of the market. Some seasonality is experienced within these businesses, as the Company generally experiences a higher level of sales during the warmer months. With 14 dry ice plants (converting liquid carbon dioxide into dry ice), Airgas has the largest network of dry ice conversion plants in the U.S. Additionally, Airgas operates eight liquid carbon dioxide production facilities. The Company’s carbon dioxide production capacity is supplemented by take-or-pay supply contracts with other regional and national liquid carbon dioxide producers.

Nitrous Oxide

Airgas is the largest producer of nitrous oxide gas in the U.S. through its three nitrous oxide production facilities. Nitrous oxide is used as an anesthetic in the medical and dental fields, as a propellant in the packaged food industry and in certain manufacturing processes in the electronics industry. The raw materials utilized in nitrous oxide production are purchased under contracts with major manufacturers and suppliers.

Ammonia Products

Airgas is a leading U.S. distributor of anhydrous and aqua ammonia. Industrial ammonia applications primarily include the abatement of nitrogen oxide compounds (“DeNOx”) in the utilities industry, chemicals processing, commercial refrigeration, water treatment and metal treatment. The Company operates 29 distribution facilities across the U.S. and purchases ammonia from suppliers under agreements.

Refrigerants

Refrigerants are used in a wide variety of commercial and consumer freezing and cooling applications. Airgas purchases and distributes refrigerants and provides technical and refrigerant reclamation services. The primary focus of the refrigerants business is on the sale, distribution and reclamation of refrigerants, with a varied customer base that includes small and large HVAC contractors and distributors, facility owners, transportation companies, manufacturing facilities and government agencies. The refrigerants business typically experiences some seasonality, with higher sales levels during the warmer months as well as during the March and April time frame in preparation for the cooling season.

AIRGAS GROWTH STRATEGIES

The Company’s primary objective is to maximize shareholder value by: driving market-leading sales growth through product and service offerings that leverage the Company’s infrastructure, technical expertise, and diverse customer base; executing on strategic organic growth initiatives; pursuing acquisitions in the Company’s core distribution business and in adjacent lines of business to increase customer density; providing outstanding customer service; and improving operational efficiencies. To meet this objective, the Company is focused on the following:

• alignment of the sales and marketing organization with key customer segments, particularly within the strategic accounts program, to provide leadership and support throughout all sales channels in tailoring the Company’s broad product and service offerings to the unique needs of each customer segment;

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• leveraging all sales channels, including branch-based sales representatives, product and industry specialists, retail stores, the strategic accounts program, telesales, catalogs, e-Business and independent distributors;

• fully deploying the new District Manager structure to drive local sales and branch operations accountability, enhance depth of customer relationships, continuously improve transaction accuracy, and increase speed to deliver exceptional customer service through the Districts;

• enhancing the effectiveness of the field-based sales organization through improved sales management disciplines at the District and branch levels;

• driving customer adoption of the Company’s new Airgas.com e-Business platform;

• strategic products, which have strong growth profiles due to favorable customer segments, application development, increasing environmental regulation, strong cross-selling opportunities, or a combination thereof (e.g., bulk gases, specialty gases, medical products, carbon dioxide/dry ice and safety products);

• leveraging the Company’s recently implemented enterprise information system (“SAP”) by capturing strategic pricing benefits, expanding the Airgas Total Access™telesales platform, maximizing cylinder production and utilization, developing key metrics, analytics and tools for continuous improvement, optimizing sales channels and maximizing hardgoods and packaged gas distribution efficiencies;

• effective utilization of the Company’s divisional operating structure and Business Support Centers (“BSCs”) to leverage the full benefits of the SAP platform, maximize back-office efficiencies and streamline customer relationship management;

• reducing costs associated with production, cylinder maintenance and distribution logistics; and

• add density through acquisitions and growing share to complement and expand its business and to leverage its significant national platform.

ENVIRONMENTAL MATTERS

The Company is subject to federal and state laws and regulations adopted for the protection of the environment and the health and safety of employees and users of the Company’s products. The Company has programs for the design and operation of its facilities to achieve compliance with applicable environmental regulations. The Company believes that it is in compliance, in all material respects, with such laws and regulations. Expenditures for environmental compliance purposes during fiscal 2015 were not material.

INSURANCE

The Company has established insurance programs to cover workers’ compensation, business automobile and general liability claims. During fiscal years 2015, 2014 and 2013, these programs had deductible limits of $1 million per occurrence and costs related to the programs were approximately 0.5% of sales during each of these years. For fiscal year 2016, the deductible limits are expected to remain at $1 million per occurrence. The Company accrues estimated losses using actuarial methods and assumptions based on the Company’s historical loss experience.

EMPLOYEES

As of March 31, 2015, the Company employed approximately 17,000 associates. Less than 5% of the Company’s associates were covered by collective bargaining agreements. The Company believes it has good relations with its employees and has not experienced a significant strike or work stoppage in over ten years.

PATENTS, TRADEMARKS AND LICENSES

The Company holds the following trademarks and service marks: “Airgas,” “National Carbonation,” “Airgas National Carbonation,” “Airgas N2IceCream,” “Airgas Total Access,” “Airgas Retail Solutions,” “AcuGrav,” “AIR BOSS,” “Aspen,” “Aspen Refrigerants,” “Any Refrigerant, Any Place, Any Time,” “For All Your Refrigerant Needs,” “Radnor,” “Gold Gas,” “SteelMIX,” “StainMIX,” “AluMIX,” “OUTLOOK,” “Ny-Trous+,” “Red-D-Arc,” “RED-D-ARC WELDERENTALS,” “Gaspro,” “GAIN,” “MasterCut,” “Walk- O₂ -Bout,” “Airgas Puritan Medical,” “Penguin Brand Dry Ice,” “Kangaroo Kart,” “National Farm and Shop,” “National/HEF,” “UNAMIX,” “UNAMIG Xtra,” “UNAMIG Six,” “FreezeRight,” “Reklaim,” “Refrigatron,” “RelEye,” “Safe-T-Cyl,” “StatusChecker,” “Smart-Logic,” “When You’re Ready To Weld,” “WelderHelper,” “Your Total Ammonia Solution,” “You’ll find it with us,” “Worry-Free Carbonation,” “Refreshingly Easy,” “QuartzSight,” “Saffire,” and “Panzer.” Additionally, the Company has registered U.S. Pat. No. 5,622,644.

The Company believes that its businesses as a whole are not materially dependent upon any single patent, trademark or license.

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EXECUTIVE OFFICERS OF THE COMPANY

The executive officers of the Company are as follows:

Name	Age	Position
Peter McCausland	65	Executive Chairman of the Board
Michael L. Molinini	64	President, Chief Executive Officer and Director
Robert M. McLaughlin	58	Senior Vice President and Chief Financial Officer
Andrew R. Cichocki	52	Senior Vice President - Airgas, Inc. and President - Airgas USA, LLC
Robert A. Dougherty	57	Senior Vice President and Chief Information Officer
Leslie J. Graff	54	Senior Vice President - Corporate Development
Ronald J. Stark	51	Senior Vice President - Sales and Marketing
Pamela J. Claypool	61	Senior Vice President - Human Resources
Robert H. Young, Jr.	64	Senior Vice President and General Counsel
R. Jay Worley	46	Senior Vice President - Distribution Operations
Douglas L. Jones	59	Division President - West
Terry L. Lodge	58	Division President - Central
B. Shaun Powers	63	Division President - North
Charles E. Broadus, Jr.	48	Division President - South
Thomas S. Thoman	52	Division President - Gases Production
Thomas M. Smyth (1)	61	Vice President and Controller

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⁽¹⁾     Mr. Smyth serves as the Company’s Principal Accounting Officer, but he is not an executive officer.

Mr. McCausland has been Executive Chairman of the Board since August 2012. He previously served as Chairman of the Board from 1987 to September 2010 and from August 2011 to August 2012. Mr. McCausland also served as the Chief Executive Officer of Airgas from May 1987 to August 2012 and President of Airgas from June 1986 to August 1988, from April 1993 to November 1995, from April 1997 to January 1999 and from January 2005 to August 2012. Mr. McCausland serves as a director of the Independence Seaport Museum. Mr. McCausland also serves on the Board of Visitors of the Boston University School of Law and the College of Arts and Sciences of the University of South Carolina.

Mr. Molinini has been President, Chief Executive Officer and Director since August 2012. Prior to that time, Mr. Molinini served as Executive Vice President and Chief Operating Officer from January 2005 to August 2012, Senior Vice President - Hardgoods Operations from August 1999 to January 2005 and as Vice President - Airgas Direct Industrial from April 1997 to July 1999. Prior to joining Airgas, Mr. Molinini served as Vice President of Marketing of National Welders Supply Company, Inc. (“National Welders”) from 1991 to 1997.

Mr. McLaughlin has been Senior Vice President and Chief Financial Officer since October 2006 and served as Vice President and Controller from the time he joined Airgas in June 2001 to September 2006. Prior to joining Airgas, Mr. McLaughlin served as Vice President Finance for Asbury Automotive Group from 1999 to 2001, and was a Vice President and held various senior financial positions at Unisource Worldwide, Inc. from 1992 to 1999. Mr. McLaughlin also serves on the Board of Directors of Axalta Coating Systems Ltd.

Mr. Cichocki was named Senior Vice President - Airgas, Inc. effective August 2014 and President - Airgas USA, LLC effective April 2014. Airgas USA, LLC accounts for the majority of the Company’s consolidated net sales. Mr. Cichocki previously served as Senior Vice President - Distribution Operations and Business Process Improvement from August 2011 through March 2014. From July 2008 to July 2011, he was Division President - Process Gases and Chemicals. Prior to that time, Mr. Cichocki served as President of Airgas National Welders and Airgas’ joint venture, National Welders, from 2003. Prior to that, Mr. Cichocki served in key corporate roles for Airgas, including Senior Vice President of Human Resources, Senior Vice President of Business Operations and Planning, and for ten years as Vice President of Corporate Development.

Mr. Dougherty has been Senior Vice President and Chief Information Officer since joining Airgas in January 2001. Prior to joining Airgas, Mr. Dougherty served as Vice President and Chief Information Officer from 1998 to 2000 and as Director of Information Systems from 1993 to 1998 at Subaru of America, Inc.

Mr. Graff has been Senior Vice President - Corporate Development since August 2006. Prior to that, Mr. Graff held various management positions since joining the Company in 1989, including Director of Corporate Finance, Director of Corporate Development, Assistant Vice President - Corporate Development and Vice President - Corporate Development. He has directed the in-house acquisition department since 2001. Prior to joining Airgas, Mr. Graff worked for KPMG LLP from 1983 to 1989.

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Mr. Stark was named Senior Vice President - Sales and Marketing in July 2009 and previously served as President, Airgas North Central, since joining Airgas in 2003. Mr. Stark began his career at Union Carbide - Linde Division (now Praxair) in 1985 and advanced through a series of positions in applications engineering and key account management. In 1992, he joined MVE, a Minnesota-based supplier of cryogenic storage and distribution technology, and advanced to vice president and general manager of the industrial gases market. After Chart Industries acquired MVE in 1999, Mr. Stark became president of Chart’s Distribution and Storage Group and held that post until joining Airgas.

Ms. Claypool was named Senior Vice President - Human Resources in December 2013. Ms. Claypool previously served as Vice President - Talent Management for Airgas and as Vice President - Human Resources for Airgas’ North Division. She joined Airgas in 2007 with the acquisition of Linde’s U.S. packaged gas business, serving as Vice President of Finance and then Chief Financial Officer for Airgas Great Lakes, Inc. Prior to joining Airgas, Ms. Claypool spent three years in Linde’s U.S. group where she was responsible for business and financial analysis and sales compensation, and fourteen years with Commercial Intertech in multiple finance and management roles. In August 2015, Ms. Claypool will assume the role of Division President - North, following the retirement of the current Division President - North, Mr. Powers.

Mr. Young has been Senior Vice President and General Counsel since October 2007. Prior to joining Airgas, Mr. Young was a shareholder of McCausland Keen & Buckman, which he joined in 1985, and served as outside counsel for the Company on many acquisitions and other corporate legal matters. At McCausland Keen & Buckman, Mr. Young focused his practice on general corporate law for both public and private corporations, mergers and acquisitions, and venture capital financing. Mr. Young began his legal career as an attorney at Drinker Biddle & Reath in Philadelphia.

Mr. Worley has served as Senior Vice President - Distribution Operations since February 2015. Prior to that, Mr. Worley served as Vice President - Strategic Pricing since the inception of Airgas’ strategic pricing program in January 2012, and as President of Airgas National Carbonation since October 2013. Previously, Mr. Worley held the position of Vice President - Communications and Investor Relations for Airgas from July 2008 to December 2011, as Director - Investor Relations from 2006 until July 2008 and as Chief Financial Officer of Airgas Southwest from 2001 until 2006.  Mr. Worley began his career at Airgas in 1993 as Assistant Controller with what is now Airgas Intermountain and held a variety of roles in that organization, including in sales and human resources.

Mr. Jones has been Division President - West since April 2013. Prior to this role, Mr. Jones was President of Airgas Intermountain from 2006 to April 2013, Vice President of Sales and Marketing from 2001 to 2006 and Director of Marketing from 1998 to 2001. Mr. Jones has served the Company in various other roles since joining Airgas in 1989 through the acquisition of Utah Welders Supply.

Mr. Lodge has been Division President - Central since July 2011. Prior to that time, Mr. Lodge was President of Airgas Mid South from November 2007, Vice President - Western Division from January 2005 to November 2007 and CFO for Airgas Mid South from August 1994 to January 2005. Prior to joining Airgas, Mr. Lodge was the CFO for The Jimmie Jones Company, an independent distributor acquired by Airgas in 1994 where he originally started his career in the industrial gas industry in 1979.

Mr. Powers has been Division President - North since July 2011. Prior to that time, Mr. Powers was Division President - East since joining Airgas in April 2001. Prior to joining Airgas, Mr. Powers served as Senior Vice President of Industrial Gases at Linde from October 1995 to March 2001. Mr. Powers has more than 30 years of experience in the industrial gas industry. After a long and successful career, Mr. Powers has announced his retirement effective August 2015. Following Mr. Powers retirement, Ms. Claypool will assume the role of Division President - North.

Mr. Broadus was named Division President - South in July 2013. In February 2015, while continuing to lead the South Division, Mr. Broadus assumed expanded responsibility for Red-D-Arc Welderentals and Airgas On-site Safety Services (AOSS). Mr. Broadus joined Airgas in 2003 as Vice President of Sales and Marketing for the West region. He was named President - Airgas Specialty Products in 2006 and took over as President - Airgas Refrigerants in 2008. In 2011, Mr. Broadus was named President - Airgas South region, serving in this role through June 2013. Prior to joining Airgas, Mr. Broadus was Marketing Director for Reliant Energy in Houston for three years and spent seven years in various operations and sales roles with BOC Gases.

Mr. Thoman has been Division President - Gases Production since July 2011. Prior to that time, Mr. Thoman served as Senior Vice President - Tonnage and Merchant Gases and President - Airgas Merchant Gases since 2007. Leading up to that time, Mr. Thoman served in key corporate roles including Vice President - Gases, which focused on the Company’s gases supply chains, product sourcing, marketing, product management and business development. He has been with Airgas nearly 12 years and in the industrial gas industry for 24 years.

Mr. Smyth has been Vice President and Controller since November 2006. Prior to that, Mr. Smyth served as Director of Internal Audit since joining Airgas in February 2001 and became Vice President in August 2004. Prior to joining Airgas, Mr. Smyth served in internal audit, controller and chief accounting roles at Philadelphia Gas Works from 1997 to 2001. Prior to

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that, Mr. Smyth spent 12 years with Bell Atlantic, now Verizon, in a variety of internal audit and general management roles and in similar positions during eight years at Amtrak.

COMPANY INFORMATION

The Company’s Annual Report on Form 10-K, Quarterly Reports on Form 10-Q, Current Reports on Form 8-K and any amendments to those reports filed with or furnished to the Securities and Exchange Commission (“SEC”) are available free of charge on the Company’s website (www.airgas.com) under the “Financial Information” link in the “Investor Relations” section. The Company makes these documents available as soon as reasonably practicable after they are filed with or furnished to the SEC, but no later than the end of the day that they are filed with or furnished to the SEC.

Code of Ethics and Business Conduct

The Company has adopted a Code of Ethics and Business Conduct applicable to its employees, officers and directors. The Code of Ethics and Business Conduct is available on the Company’s website, under the “Corporate Governance” link in the “Investor Relations” section. Amendments to and waivers from the Code of Ethics and Business Conduct will also be disclosed promptly on the website. In addition, stockholders may request a printed copy of the Code of Ethics and Business Conduct, free of charge, by contacting the Company’s Investor Relations department at:

Airgas, Inc.

Attention: Investor Relations

259 N. Radnor-Chester Rd.

Radnor, PA 19087-5283

Telephone: (866) 816-4618

Email: investors@airgas.com

Corporate Governance Guidelines

The Company has Corporate Governance Guidelines as well as charters for its Audit Committee, Finance Committee and Governance & Compensation Committee. These documents are available on the Company’s website, noted above. Stockholders may also request a copy of these documents, free of charge, by contacting the Company’s Investor Relations department at the address and phone number noted above.

Certifications

The Company has filed certifications of its Executive Chairman of the Board, President and Chief Executive Officer, and Senior Vice President and Chief Financial Officer pursuant to Sections 302 and 906 of the Sarbanes-Oxley Act of 2002 as exhibits to its Annual Report on Form 10-K for each of the years ended March 31, 2015, 2014 and 2013.

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ITEM 1A. RISK FACTORS.

In addition to risk factors discussed in MD&A under “Critical Accounting Estimates” and elsewhere in this report, we believe the following, which have not been sequenced in any particular order, are the most significant risks related to our business that could cause actual results to differ materially from those contained in any forward-looking statements.

We face risks related to general economic conditions, which may impact the demand for and supply of our products and our results of operations.

Demand for our products depends in part on the general economic conditions affecting the United States and, to a lesser extent, the rest of the world. Although our diverse product offering and customer base help provide some stability to our business in difficult times, a broad decline in general economic conditions or changes in other external factors including the price of commodities, such as crude oil, could result in customers postponing capital projects and could negatively impact the demand for our products and services as well as our customers’ ability to fulfill their obligations to us. The impact of a strong U.S. dollar on domestic customers that export could reduce their production activity and reduce demand for our products. Additionally, the strong U.S. dollar could give rise to higher imports, reducing domestic production. In addition, falling demand could lead to lower sales volumes, lower pricing and/or lower profit margins. It could also impact our ability to fulfill our volume purchase obligations under take-or-pay supply agreements, resulting in lower profit margins. A protracted period of lower product demand and profitability could result in diminished values for both tangible and intangible assets, increasing the possibility of future impairment charges. Further, suppliers could be impacted by an economic downturn, which could impact their ability to fulfill their obligations to us. If economic conditions deteriorate, our operating profit, financial condition and cash flows could be adversely affected.

Our financial results may be adversely affected by gas supply disruptions and supply/demand imbalances.

We are one of the nation’s leading suppliers of industrial, medical and specialty gases and have supply contracts with the major gas producers. Additionally, we operate 16 air separation units, 11 acetylene plants and eight liquid carbon dioxide production facilities, which provide us with substantial production capacity. Our supply contracts and our own production capacity mitigate supply disruptions to various degrees. However, natural disasters, plant shut-downs, labor strikes and other supply disruptions may occur within our industry. Regional supply disruptions may create shortages of raw materials and certain products. Consequently, we may not be able to obtain the products required to meet our customers’ demands or may incur significant costs to ship product from other regions of the country to meet customer requirements. Such additional costs may adversely impact operating results until product sourcing can be restored. When we experience supply shortages, we work to meet customer demand by arranging for alternative supplies and transporting product into an affected region, but we cannot guarantee that we will be successful in arranging alternative product supplies or passing the additional transportation or other costs on to customers in the event of future supply disruptions, which could negatively impact our operations, financial results or liquidity.

Supply and demand imbalances in the marketplace may adversely impact our results of operations. Volumes and pricing for our refrigerants business were pressured following theUnited States Environmental Protection Agency (“EPA”)ruling in March 2013 that allowed for an increase in the production and import of Refrigerant-22 (“R-22”) in calendar years 2013 and 2014, resulting in a greater-than-expected availability of virgin R-22 in the marketplace. In October 2014, the EPA posted its final calendar year 2015 to 2019 allocation rule pertaining to allowances for virgin production and consumption of hydrochlorofluorocarbons (“HCFCs”), including R-22. The final rule provided clarity on the pace and magnitude of the reduction in allowable production of R-22 for the calendar year 2015 to 2019 time period, beginning with an approximately 60% reduction for calendar year 2015 and ending with a final ban on all production effective January 1, 2020. There is uncertainty as to how the final ruling will impact the market dynamics in the near-term, as the market sheds the excess inventory that has accumulated throughout the supply chain since the previous EPA ruling in March 2013. A protracted period of lower product demand and profitability as a result of near-term uncertainty in the market based on the excess inventory build-up, as well as the pace and extent of marketplace migration toward the use of reclaimed product, could have an adverse impact on the financial results of our refrigerants business and result in diminished values for both tangible and intangible assets related to this business, increasing the possibility of future impairment charges.

Interruptions in the proper functioning of our information systems could disrupt business and operational activities.

We rely on information systems for business and operational activities, including the processing and storage of proprietary and sensitive information. These systems are susceptible to disruptions as a result of events such as fires, natural disasters, hardware and software failures, network outages, power disruptions, and other problems. Although we maintain data center and network resiliency and recovery capabilities for our critical systems, interruptions in the proper functioning of these systems could adversely impact our ability to process orders, shipments, inventory receipts, vendor payments, and accounts receivable collections - any of which could negatively impact our operations or financial results.

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Breaches of our information systems and e-Business platform could adversely impact our reputation, disrupt operations, and result in increased costs and loss of revenue.

Information security risks and threats have increased in recent years as a result of the interconnectedness of the systems, networks, and e-Business platform used to conduct business with our customers, suppliers and other third parties. Our business is also subject to complex and evolving U.S. and foreign laws and regulations regarding privacy, data protection and other matters. Despite maintaining and continuously improving our technologies and processes to mitigate these risks and comply with laws and regulations, sophisticated cyberattacks and security breaches could compromise our systems and data. Such events could expose us to reputational damage, business disruptions, regulatory and legal actions, and claims from customers, suppliers, financial institutions, and employees - any of which could have a material adverse impact to our financial condition and results of operations.

Catastrophic events and operating failures may disrupt our business and adversely affect our operating results.

Although our operations are widely distributed across the U.S., and safety is a primary focus in all we do, we manage and distribute hazardous materials and a catastrophic event could result in significant property losses, injuries and third-party claims. Examples of such events include, but are not limited to, the following: a fire, explosion or release of hazardous materials at one of our facilities, a supplier’s facility or a customer’s facility; a natural disaster, such as a hurricane, tornado or earthquake; and an operating failure at one of our facilities or in connection with the delivery of our products. Additionally, such events may severely impact our regional customer base and supply sources resulting in lost revenues, higher product costs and increased bad debts.

Operational and execution risks may adversely impact our financial results.

Our operating results are reliant on the continued operation of our production and distribution facilities and delivery fleet, as well as our ability to meet customer requirements. Inherent in our operations are risks that require continuous oversight and control, such as risks related to mechanical failure, fire, explosion, toxic releases and vehicle accidents. We have policies, procedures and safety protocols in place requiring continuous training, oversight and control in order to address these risks to our operations. However, significant operating failures at our production, distribution or storage facilities, or vehicle transportation accidents, could result in loss of life, loss of production or distribution capabilities, and/or damage to the environment, thereby adversely impacting our operations and financial results. These factors could subject us to lost sales, litigation contingencies and reputational risk.

U.S. credit markets may impact our ability to obtain financing or increase the cost of future financing.

As of March 31, 2015, we had total consolidated debt of approximately $2.3 billion, which had an average length to maturity of approximately four years and includes $250 million of long-term debt obligations maturing during the year ending March 31, 2016. During periods of volatility and disruption in the U.S. credit markets, obtaining additional or replacement financing may be more difficult and costly. Higher cost of new debt may limit our ability to finance future acquisitions on terms that are acceptable to us. Additionally, although we actively manage our interest rate risk through the use of diversified debt obligations and occasionally, derivative instruments, approximately 30% of our debt has a variable interest rate. If interest rates increase, our interest expense could increase, affecting earnings and reducing cash flows available for working capital, capital expenditures and acquisitions. Based on our outstanding borrowings at March 31, 2015, for every 25 basis point increase in our average variable borrowing rates, we estimate that our annual interest expense would increase by approximately $1.7 million.

Finally, our cost of borrowing can be affected by debt ratings assigned by independent rating agencies which are based in large part on our performance as measured by certain liquidity metrics. An adverse change in these debt ratings could increase the cost of borrowing and make it more difficult to obtain financing on favorable terms.

We operate in a highly competitive environment and such competition could negatively impact us.

The U.S. industrial gas industry operates in a highly competitive environment. Competition is generally based on price, reliable product delivery, product availability, technical support, quality and service. If we are unable to compete effectively with our competitors, we may suffer lower revenue and/or a loss of customers, which could result in lower profits and adversely affect our financial condition and cash flows.

Volatility in product and energy costs could reduce our profitability.

The cost of industrial gases represents a significant percentage of our operating costs. The production of industrial gases requires significant amounts of electric energy. Therefore, industrial gas prices have historically increased as the cost of electric power increases. Price increases for oil and natural gas have historically resulted in electric power surcharges. Severe weather conditions, such as those experienced across much of the U.S. during the two most recent winter seasons, can adversely impact both our sales and expenses, and cause an imbalance in the timing and extent to which we can recoup those costs from our customers. In addition, a significant portion of our distribution expenses consists of fuel costs. Energy prices can be volatile and

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may rise in the future, resulting in an increase in the cost of industrial gases and/or the cost to distribute them. While we have historically been able to pass increases in the cost of our products and operating expenses on to our customers, we cannot guarantee our ability to do so in the future, which could negatively impact our operations, financial results or liquidity.

We may not be successful in integrating acquisitions and achieving intended benefits and synergies.

We have successfully integrated more than 450 acquisitions in our history and consider the acquisition and integration of businesses to be a core competency. However, the process of integrating acquired businesses into our operations may result in unexpected operating difficulties and may require significant financial and other resources. Unexpected difficulties may impair our ability to achieve targeted synergies or planned operating results, which could diminish the value of acquired tangible and intangible assets resulting in future impairment charges. Acquisitions involve numerous risks, including:

• acquired companies may not have internal control structures appropriate for a larger public company resulting in a need for significant revisions;

• acquired operations, information systems and products may be difficult to integrate;

• acquired operations may not achieve targeted synergies;

• we may not be able to retain key employees, customers and business relationships of acquired companies; and

• our management team may have its attention and resources diverted from ongoing operations.

We depend on our key personnel to manage our business effectively and they may be difficult to replace.

Our performance substantially depends on the efforts and abilities of our senior management team and key employees. Furthermore, much of our competitive advantage is based on the expertise, experience and know-how of our key personnel regarding our distribution infrastructure, systems and products. The loss of key employees could have a negative effect on our business, revenues, results of operations and financial condition.

We are subject to litigation and reputational risk as a result of the nature of our business, which may have a material adverse effect on our business.

From time-to-time, we are involved in lawsuits that arise from our business. Litigation may, for example, relate to product liability claims, personal injury, property damage, vehicle accidents, regulatory issues, contract disputes or employment matters. The occurrence of any of these matters could also create possible damage to our reputation and our operations. The defense and ultimate outcome of lawsuits against us may result in higher operating expenses. Higher operating expenses or reputational damage could have a material adverse effect on our business, including to our liquidity, results of operations or financial condition.

We have established insurance programs with significant deductibles and maximum coverage limits which could result in the recognition of significant losses.

We maintain insurance coverage for workers’ compensation, business automobile and general liability claims with significant per claim deductibles. In the past, we have incurred significant workers’ compensation, business automobile and general liability losses. Such losses could impact our profitability. Additionally, claims in excess of our insurance limits could have a material adverse effect on our financial condition, results of operations or liquidity.

We are subject to extensive government regulation relating to health, safety and environmental matters, as well as anti-corruption laws that generate ongoing compliance costs and could subject us to liability.

We are subject to laws and regulations relating to health, safety and the protection of the environment and natural resources, as well as regulations related to social policy. These include, among other things, reporting on chemical inventories and risk management plans, and management of hazardous substances and wastes, air emissions and water discharges. More recently, we have examined our supply chain with respect to certain products we manufacture or contract to manufacture as a result of new regulations around the use of conflict minerals. Violations of existing laws and enactment of future legislation and regulations could result in substantial penalties, temporary or permanent plant closures, restrictions on our operations caused by the temporary or permanent loss of our licenses and other legal consequences, as well as reputational and other risks. Moreover, the nature of our existing and historical operations exposes us to the risk of liabilities to third parties. These potential claims include property damage, personal injuries and cleanup obligations. See Item 1, “Environmental Matters” for additional details.

The issue of greenhouse gas emissions has been subject to increased scrutiny and public awareness, and may result in legislation, both internationally and in the U.S., to reduce its effects. Increased regulation of greenhouse gas emissions could impose additional costs on us, both directly through new compliance and reporting requirements as well as indirectly through increased industrial gas and energy costs. Until such time as any new legislation is passed, it will remain unclear as to what industries would be impacted, the period of time within which compliance would be required, the significance of the greenhouse gas emissions reductions and the costs of compliance. Although we do not believe that increased greenhouse gas

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emissions regulation will have a material adverse effect on our financial condition, results of operations or liquidity, we cannot provide assurance that such costs will not increase in the future or will not become material.

Although our operations are predominantly in the United States, we conduct operations internationally in Canada, Mexico, Russia, Dubai and several European countries. Our international operations are subject to U.S. and foreign anti-corruption laws and regulations, including the U.S. Foreign Corrupt Practices Act and anti-corruption laws of the various jurisdictions in which we operate. We maintain policies and procedures designed to comply with anti-corruption laws. However, there can be no guarantee that these policies and procedures will effectively prevent violations by our employees or representatives in the future.

ITEM 1B. UNRESOLVED STAFF COMMENTS.

None.

ITEM 2. PROPERTIES.

The Company operates in all 50 U.S. states and in Canada, Mexico, Russia, Dubai and several European countries. The principal executive offices of the Company are located in leased space in Radnor, Pennsylvania.

The Company’s Distribution business segment operates a network of multiple use facilities consisting of approximately 900 branches, approximately 300 cylinder fill plants, 70 regional specialty gas laboratories, 11 national specialty gas laboratories, one research and development center, two specialty gas equipment centers, 11 acetylene plants and 16 air separation units, as well as six national hardgoods distribution centers, various customer call centers, buying centers and administrative offices. The Distribution business segment conducts business in all 50 states and internationally in Canada, Mexico, Russia, Dubai and several European countries. The Company owns approximately 46% of these facilities. The remaining facilities are primarily leased from unrelated third parties. A limited number of facilities are leased from employees, generally former owners of acquired businesses, and are on terms consistent with commercial rental rates prevailing in the surrounding rental markets.

The Company’s network of 16 air separation units that it owns and operates supports the Company’s full range of gas supply modes for its customers, making Airgas the fifth-largest producer of atmospheric gases in the U.S. During fiscal 2015, capacity utilization at the Company’s air separation units was approximately 80%, with additional capacity available upon demand. The Company is currently in the planning or construction phases for an additional four air separation units as well as a liquid hydrogen plant, all of which are expected to be on-stream at various points through calendar year 2017.

The Company’s All Other Operations business segment consists of businesses located throughout the U.S., which operate multiple use facilities consisting of approximately 75 branch/distribution locations, eight liquid carbon dioxide and 14 dry ice production facilities, and three nitrous oxide production facilities. The Company owns approximately 35% of these facilities. The remaining facilities are leased from unrelated third parties.

The Company believes that its facilities are adequate for its present needs and that its properties are generally in good condition, well-maintained and suitable for their intended use.

ITEM 3. LEGAL PROCEEDINGS.

The Company is involved in various legal and regulatory proceedings that have arisen in the ordinary course of business and have not been fully adjudicated. These actions, when ultimately concluded and determined, will not, in the opinion of management, have a material adverse effect upon the Company’s consolidated financial condition, results of operations or liquidity.

ITEM 4. MINE SAFETY DISCLOSURES.

Not applicable.

PART II

ITEM 5. MARKET FOR REGISTRANT’S COMMON EQUITY, RELATED STOCKHOLDER MATTERS AND ISSUER PURCHASES OF EQUITY SECURITIES.

Market Information, Dividends and Holders

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The Company’s common stock is listed on the New York Stock Exchange (ticker symbol: ARG). The following table sets forth, for each quarter during the last two fiscal years, the high and low closing price per share for the common stock as reported by the New York Stock Exchange and cash dividends per share for the period from April 1, 2013 to March 31, 2015:

	High		Low		Dividends Per Share
Fiscal 2015
First Quarter	$	109.95	$	102.35	$	0.55
Second Quarter	113.19		106.78		0.55
Third Quarter	117.98		103.55		0.55
Fourth Quarter	118.90		103.89		0.55
Fiscal 2014
First Quarter	$	103.98	$	93.91	$	0.48
Second Quarter	106.98		96.30		0.48
Third Quarter	112.24		105.79		0.48
Fourth Quarter	112.49		100.17		0.48

The closing sale price of the Company’s common stock on May 22, 2015, as reported by the New York Stock Exchange, was $104.27 per share. As of May 22, 2015, there were 296 stockholders of record, a number that by definition does not count those who hold the Company’s stock in street name including the many employee owners under the Airgas Employee Stock Purchase Plan.

On April 7, 2015, the Company announced a regular quarterly cash dividend of $0.60 per share, which is payable on June 30, 2015 to stockholders of record as of June 15, 2015. Future dividend declarations and associated amounts paid will depend upon the Company’s earnings, financial condition, loan covenants, capital requirements and other factors deemed relevant by management and the Company’s Board of Directors.

Stockholder Return Performance Presentation

Below is a graph comparing the yearly change in the cumulative total stockholder return on the Company’s common stock against the cumulative total return of the S&P 500 Index and the S&P 500 Chemicals Index for the five-year period that began April 1, 2010 and ended March 31, 2015.

The Company believes the use of the S&P 500 Index and the S&P 500 Chemicals Index for purposes of this performance comparison is appropriate because Airgas is a component of the indices and they include companies of similar size to Airgas.

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	March 31,	2010	2011	2012	2013	2014	2015
l	Airgas, Inc.	100.00	106.04	144.45	163.91	179.32	182.24
n	S&P 500 Index	100.00	115.65	125.52	143.05	174.31	196.51
Å	S&P 500 Chemicals	100.00	127.84	135.55	154.71	201.16	215.49

The graph above assumes that $100 was invested on April 1, 2010 in Airgas, Inc. common stock, the S&P 500 Index and the S&P 500 Chemicals Index and that all dividends have been reinvested.

Issuer Purchases of Equity Securities

During the three months ended March 31, 2015, the Company acquired the following shares of its common stock:

Period	(a) Total Number of Shares Purchased (1)	(b) Average Price Paid per Share		(c) Total Number of Shares Purchased as Part of Publicly Announced Programs	(d) Maximum Dollar Value of Shares that May Yet Be Purchased Under the Programs
1/1/15 - 1/31/15	—	—		—	—
2/1/15 - 2/28/15	8,943	$	117.08	—	—
3/1/15 - 3/31/15	—	—		—	—
Total	8,943	$	117.08	—

____________________

⁽¹⁾ Consists of shares that were delivered or attested to upon the exercise of stock options by participants of the Company’s equity incentive plan in satisfaction of the payment of the exercise of stock options under the plan. During the three months ended March 31, 2015, the Company acquired 8,943 shares of its common stock with an average fair market value per share of $117.08 for the exercise of 24,000 stock options.

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ITEM 6. SELECTED FINANCIAL DATA.

Selected financial data for the Company is presented in the following table and should be read in conjunction with MD&A included in Item 7 and the Company’s consolidated financial statements and accompanying notes included in Item 8.

	Years Ended March 31,
(In thousands, except per share amounts):	2015		2014 (1)		2013 (2)		2012 (3)		2011 (4)
Operating Results:
Net sales	$	5,304,885	$	5,072,537	$	4,957,497	$	4,746,283	$	4,251,467
Depreciation and amortization	$	329,058	$	305,306	$	288,900	$	270,285	$	250,518
Operating income	$	641,278	$	630,534	$	596,417	$	556,221	$	469,191
Interest expense, net	62,232		73,698		67,494		66,337		60,054
Losses on the extinguishment of debt	—		9,150		—		—		4,162
Other income (expense), net	5,075		4,219		14,494		2,282		1,958
Income taxes	216,035		201,121		202,543		178,792		156,669
Net earnings	$	368,086	$	350,784	$	340,874	$	313,374	$	250,264
Net Earnings Per Common Share:
Basic earnings per share	$	4.93	$	4.76	$	4.45	$	4.09	$	3.00
Diluted earnings per share	$	4.85	$	4.68	$	4.35	$	4.00	$	2.94
Dividends per common share declared and paid (5)	$	2.20	$	1.92	$	1.60	$	1.25	$	1.01
Balance Sheet and Other Data at March 31:
Working capital	$	286,637	$	68,312	$	602,116	$	344,157	$	566,015
Total assets	5,973,610		5,793,314		5,618,225		5,320,585		4,945,754
Short-term debt	325,871		387,866		—		388,452		—
Current portion of long-term debt	250,110		400,322		303,573		10,385		9,868
Long-term debt, excluding current portion	1,748,662		1,706,774		2,304,245		1,761,902		1,842,994
Non-current deferred income tax liability, net	854,574		825,897		825,612		793,957		726,797
Other non-current liabilities	89,741		89,219		89,671		84,419		70,548
Stockholders’ equity	2,151,586		1,840,649		1,536,983		1,750,258		1,740,912
Capital expenditures for years ended March 31,	468,789		354,587		325,465		356,514		256,030

____________________

⁽¹⁾  The results for fiscal 2014 include the following: $9.1 million ($5.6 million after tax) or $0.08 per diluted share recorded for a loss on the early extinguishment of the Company’s $215 million of 7.125% senior subordinated notes, which were originally due to mature in October 2018 but were redeemed in full on October 2, 2013, as well as $3.3 million or $0.04 per diluted share of state income tax benefits recognized for changes to enacted state income tax rates and a change in a state income tax law. The Company has used proceeds from the commercial paper program for general corporate purposes, including the early redemption of the senior subordinated notes and repayment of its $300 million 2.85% senior notes upon their maturity in October 2013, causing the $388 million increase to short-term debt. In addition, the Company reclassified its $400 million 4.5% senior notes maturing in September 2014 to the “Current portion of long-term debt” line item of the Company’s consolidated balance sheet based on the maturity date.

⁽²⁾  The results for fiscal 2013 include the following: $8.1 million ($5.1 million after tax) or $0.07 per diluted share of net restructuring and other special charges and $6.8 million ($5.5 million after tax) or a benefit of $0.07 per diluted share of a gain on the sale of five branch locations in western Canada. The $6.8 million gain on sale of businesses was recorded in the “Other income, net” line item of the Company’s consolidated statement of earnings. Also during fiscal 2013, the Company’s $300 million 2.85% notes were reclassified to the “Current portion of long-term debt” line item of the Company’s consolidated balance sheet based on the maturity date. Additionally, during the three months ended March 31, 2013, proceeds from the issuance of an aggregate $600 million of senior notes in February 2013 were used to pay down the balance on the commercial paper program and as a result, there were no outstanding borrowings under the program at March 31, 2013, resulting in a decrease to short-term debt and an increase in working capital in the table above.

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⁽³⁾  The results for fiscal 2012 include the following: $24.4 million ($15.6 million after tax) or $0.19 per diluted share of net restructuring and other special charges, $7.9 million ($5.0 million after tax) or $0.06 per diluted share in benefits from lower than previously estimated net costs related to a prior year unsolicited takeover attempt, $4.3 million ($2.7 million after tax) or $0.04 per diluted share in multi-employer pension plan withdrawal charges, and $4.9 million or $0.06 per diluted share of income tax benefits related to the LLC reorganization as well as a true-up of the Company’s foreign tax liabilities. Additionally, during fiscal 2012, the Company commenced a $750 million commercial paper program supported by its revolving credit facility. The Company has used proceeds under the commercial paper program to pay down amounts outstanding under its revolving credit facility and for general corporate purposes. Borrowings under the commercial paper program are classified as short-term debt on the Company’s consolidated balance sheet, which led to a $388 million decrease in both working capital and long-term debt in the table above.

⁽⁴⁾  The results for fiscal 2011 include $44.4 million ($28.0 million after tax) or $0.33 per diluted share in costs related to an unsolicited takeover attempt and $4.6 million ($2.8 million after tax) or $0.03 per diluted share in multi-employer pension plan withdrawal charges. Also included in the results for fiscal 2011 are a charge of $4.2 million ($2.6 million after tax) or $0.03 per diluted share for the early extinguishment of debt and a one-time interest penalty of $2.6 million ($1.7 million after tax) or $0.02 per diluted share related to the late removal of the restrictive legend on the Company’s 7.125% senior subordinated notes.

⁽⁵⁾   The Company’s quarterly cash dividends paid to stockholders for the years presented above are disclosed in the following table:

	Years Ended March 31,
	2015		2014		2013		2012		2011
First Quarter	$	0.55	$	0.48	$	0.40	$	0.29	$	0.22
Second Quarter	0.55		0.48		0.40		0.32		0.25
Third Quarter	0.55		0.48		0.40		0.32		0.25
Fourth Quarter	0.55		0.48		0.40		0.32		0.29
Fiscal Year	$	2.20	$	1.92	$	1.60	$	1.25	$	1.01

On April 7, 2015, the Company announced a regular quarterly cash dividend of $0.60 per share, which is payable on June 30, 2015 to stockholders of record as of June 15, 2015. Future dividend declarations and associated amounts paid will depend upon the Company’s earnings, financial condition, loan covenants, capital requirements and other factors deemed relevant by management and the Company’s Board of Directors.

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ITEM 7. MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS.

RESULTS OF OPERATIONS: 2015 COMPARED TO 2014

OVERVIEW

Airgas, Inc. and its subsidiaries (“Airgas” or the “Company”) had net sales for the year ended March 31, 2015 (“fiscal 2015” or “current year”) of $5.3 billion compared to $5.1 billion for the year endedMarch 31, 2014 (“fiscal 2014” or “prior year”), an increase of 5%. Organic sales increased 3% compared to the prior year, with gas and rent up 3% and hardgoods up 4%. Current and prior year acquisitions contributed sales growth of 2% in the current year. Through the first nine months of fiscal 2015, organic sales growth was 3% with the third quarter showing the strongest year over year growth rate of 6%. The Company’s fourth quarter year over year organic growth rate fell to 2% as the energy & chemicals and manufacturing customer segments were negatively impacted by the significant and rapid decline in oil prices and the strong U.S. dollar.

The consolidated gross profit margin (excluding depreciation) in the current year was 55.6%, a decrease of 10 basis points from the prior year.

The Company’s operating income margin in the current year was 12.1%, a decrease of 30 basis points from the prior year, primarily reflecting the sales mix shift toward lower margin hardgoods and the impact of rising operating costs and the Company’s continued investments in strategic long-term growth initiatives in the current low organic sales growth environment.

Net earnings per diluted share increased to $4.85 in the current year versus $4.68 in the prior year. Net earnings per diluted share in the prior year included $0.04 per diluted share in benefits related to changes in state income tax rates and law, and an $0.08 loss on the early extinguishment of debt.

Refrigerants Business

On October 16, 2014, the U.S. Environmental Protection Agency (“EPA”) signed the final rule pertaining to allowances for virgin production and consumption of hydrochlorofluorocarbons (“HCFCs”), including Refrigerant-22 (“R-22”), for calendar 2015 through 2019. The final rule, which was the lowest proposed five-year linear approach, establishes virgin R-22 consumption allowances which step down each year beginning with an approximately 60% reduction for calendar 2015, with a final ban on all production effective January 1, 2020. Both volumes and pricing of R-22 have been pressured the past two years, as a greater-than-expected amount of virgin R-22 has been available in the marketplace, due in part to the March 27, 2013 EPA ruling allowing for an increase in production and consumption of R-22 in calendar years 2013 and 2014. As production and imports of R-22 are phased out by the EPA in accordance with United States regulations adopted in response to the Montreal Protocol on Substances that Deplete the Ozone Layer (the “Montreal Protocol”), the gap between demand and supply is expected to be filled increasingly by reclaimed and recycled R-22. The Company believes that as a leading reclaimer, recycler and distributor of R-22, its refrigerants business is well-positioned over the long-term to benefit from an expected increase in demand for reclaimed and recycled R-22, as well as from expected increases in market pricing of R-22, as the phase-out progresses. The timing and pace of the market’s increased reliance on reclaimed and recycled R-22, however, is difficult to predict due to the excess inventory that has accumulated throughout the industry’s supply chain and that must be worked off in the near-term.

Helium Supply Challenges

After several years of shortage, allocation and unpredictable supply of helium, the Company’s sales volumes remain below pre-shortage levels. During fiscal 2015, the Company embarked on efforts to strengthen the diversity and reliability of its helium supply chain. In addition to completing a long term renewal with one supplier, the Company entered into a new agreement to pick up liquid Helium from another supplier. These agreements, which the Company believes will support its ability to reliably supply its customers for many years to come, have resulted in net higher product and distribution costs. They also contain minimum volume purchase obligations. In order to manage the supply chain for this helium throughout its network, the Company invested in helium transportation, storage and trans-filling assets. Helium is a global product and recent additional helium production capacity in the Middle East coupled with the slowdown in global growth has created a worldwide helium supply surplus which will challenge the Company’s ability to pass on all of the increased costs to its customers in the near term. In spite of this near term challenge, however, the Company believes its ability to consistently and reliably supply its customers with helium for years to come has been enhanced.

Fiscal 2016 Outlook

The level of uncertainty in the U.S. industrial economy, in part, caused by the rapid and dramatic drop in oil prices and the strong U.S. dollar makes it difficult to predict the Company’s near-term sales outlook. The Company’s guidance range assumes an organic sales growth rate for fiscal 2016 in the low to mid single digits, with a gradual increase in growth rates as

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the year progresses. The Company expects earnings per diluted share for fiscal 2016 to be in the range of $4.85 to $5.15, an increase of 0% to 6% over earnings per diluted share of $4.85 in fiscal 2015. The Company’s fiscal 2016 guidance includes an estimated year-over-year negative impact of $0.00 to $0.14 per diluted share from variable compensation reset following a below-budget year as well as a year-over-year negative impact of $0.06 to $0.09 per diluted share from near term net cost pressure related to helium supply extension and diversification initiatives.

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STATEMENT OF EARNINGS COMMENTARY - FISCAL YEAR ENDED MARCH 31, 2015 COMPARED TO FISCAL YEAR ENDED MARCH 31, 2014

Net Sales

Net sales increased 5% to $5.3 billion for the current year compared to the prior year, driven by organic sales growth of 3% and sales growth from current and prior year acquisitions of 2%. Gas and rent organic sales increased 3% in the current year, and hardgoods organic sales increased 4%. Organic sales growth in the current year was driven by price increases of 2% and volume increases of 1%.

Strategic products represent approximately 40% of net sales and are comprised of safety products and bulk, medical and specialty gases (and associated rent), which are sold to end customers through the Distribution business segment, and carbon dioxide (“CO₂”) and dry ice, the vast majority of which is sold to end customers through the All Other Operations business segment. The Company has identified these products as strategic because it believes they have good long-term growth profiles relative to the Company’s core industrial gas and welding products due to favorable end customer markets, application development, increasing environmental regulation, strong cross-selling opportunities or a combination thereof. During the current year, sales of strategic products in aggregate increased 4% on an organic basis as compared to the prior year.

The Company’s strategic accounts program, which represents approximately 25% of net sales, is designed to deliver superior product and service offerings to larger, multi-location customers, and presents the Company with strong cross-selling and greater penetration opportunities. Sales to strategic accounts in the current year increased 5% compared to the prior year.

In the following table, the intercompany eliminations represent sales from the All Other Operations business segment to the Distribution business segment.

	Years Ended
Net Sales	March 31,						Increase/(Decrease)
(In thousands)	2015			2014
Distribution	$	4,773,489		$	4,558,790		$	214,699	5	%
All Other Operations	560,622			544,154			16,468		3	%
Intercompany eliminations	(29,226		)	(30,407		)	1,181
	$	5,304,885		$	5,072,537		$	232,348	5	%

The Distribution business segment’s principal products and services include industrial, medical and specialty gases, and process chemicals; cylinder and equipment rental; and hardgoods. Industrial, medical and specialty gases are distributed in cylinders and bulk containers. Rental fees are generally charged on cylinders, dewars (cryogenic liquid cylinders), bulk and micro-bulk tanks, tube trailers and certain welding equipment. Hardgoods generally consist of welding consumables and equipment, safety products, construction supplies, and maintenance, repair and operating supplies.

Distribution business segment sales increased 5% compared to the prior year, with an increase in organic sales of 3%. Incremental sales from current and prior year acquisitions contributed sales growth of 2% in the current year. Higher pricing contributed 2% and volume increases contributed 1% to organic sales growth in the Distribution business segment. Gas and rent organic sales in the Distribution business segment increased 2%, with pricing up 3% and volumes down 1%. Hardgoods organic sales within the Distribution business segment increased 4%, with pricing up 1% and volumes up 3%.

Within the Distribution business segment, organic sales of gas related strategic products and associated rent increased 4% over the prior year, comprised of the following: bulk gas and rent up 5%, on higher pricing and volumes; specialty gas, rent, and related equipment up 3%, primarily driven by increases in core specialty gas prices and volume; and medical gas and rent up 2%, as increases to physician and dental practices, as well as hospitals and surgery centers, were partially offset by weakness in wholesale sales to homecare distributors. In addition, organic sales in the Company’s Red-D-Arc business increased 14% over the prior year, driven by increases in both welder and generator rentals in the non-residential construction and energy customer segments.

Within the Distribution business segment’s hardgoods sales, organic sales of equipment were up 8% year-over-year. Sales of safety products increased by 4% compared to the prior year driven by volume gains. Sales of the Company’s Radnor^® private-label product line, which includes certain safety products, consumables, and other hardgoods, increased 4% in the current year, consistent with the 4% increase in total hardgoods organic sales in the Distribution business segment.

The All Other Operations business segment consists of five business units. The primary products manufactured and/or distributed are CO₂, dry ice, nitrous oxide, ammonia and refrigerant gases.

The All Other Operations business segment sales increased 3% in total and on an organic basis compared to the prior year. Sales increases in the Company’s CO₂, dry ice, and ammonia businesses were partially offset by the decline in sales in its refrigerants business. Organic sales of CO₂ and dry ice increased 3% over the prior year.

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Gross Profits (Excluding Depreciation)

Gross profits (excluding depreciation) do not reflect deductions related to depreciation expense and distribution costs. The Company reflects distribution costs as an element of the line item “Selling, distribution and administrative expenses” and recognizes depreciation on all of its property, plant and equipment in the line item “Depreciation” in its consolidated statements of earnings. Other companies may report certain or all of these costs as elements of their cost of products sold and, as such, the Company’s gross profits (excluding depreciation) discussed below may not be comparable to those of other companies.

Consolidated gross profits (excluding depreciation) increased 4% in the current year compared to the prior year, reflecting the overall growth in sales, margin expansion on price increases and surcharges related to power cost spikes in the prior year's fourth quarter, partially offset by supplier price and internal production cost increases and a sales mix shift toward lower margin hardgoods. The consolidated gross profit margin (excluding depreciation) in the current year decreased 10 basis points to 55.6% compared to 55.7% in the prior year. The decrease in consolidated gross profit margin (excluding depreciation) reflects margin expansion on price increases, offset by a sales mix shift toward lower margin hardgoods. Gas and rent represented 63.2% of the Company’s sales mix in the current year, down from 63.6% in the prior year.

	Years Ended
Gross Profits (ex. Depr.)	March 31,				Increase/(Decrease)
(In thousands)	2015		2014
Distribution	$	2,681,023	$	2,562,725	$	118,298	5	%
All Other Operations	267,987		262,238		5,749		2	%
	$	2,949,010	$	2,824,963	$	124,047	4	%

The Distribution business segment’s gross profits (excluding depreciation) increased 5% compared to the prior year. The Distribution business segment’s gross profit margin (excluding depreciation) remained consistent at 56.2% in the current and prior year. The Distribution business segment’s flat gross profit margin (excluding depreciation) reflects margin expansion on price increases and surcharges related to power cost spikes in the prior year's fourth quarter, offset by a sales mix shift toward lower margin hardgoods. Gas and rent represented 59.1% of the Distribution business segment’s sales in the current year, down from 59.6% in the prior year.

The All Other Operations business segment’s gross profits (excluding depreciation) increased 2% compared to the prior year. The All Other Operations business segment’s gross profit margin (excluding depreciation) decreased 40 basis points to 47.8% in the current year from 48.2% in the prior year. The decrease in the All Other Operations business segment’s gross profit margin (excluding depreciation) was primarily driven by a sales mix shift toward lower margin ammonia and slight margin pressure in the Company’s CO₂, refrigerants and ammonia businesses, partially offset by a sales mix shift away from lower margin refrigerants.

Operating Expenses

Selling, Distribution and Administrative (“SD&A”) Expenses

SD&A expenses consist of labor and overhead associated with the purchasing, marketing and distribution of the Company’s products, as well as costs associated with a variety of administrative functions such as legal, treasury, accounting, tax and facility-related expenses. Although corporate operating expenses are generally allocated to each business segment based on sales dollars, the Company reported expenses (excluding depreciation) related to the implementation of its SAP system as part of SD&A expenses in the “Other” line item in the SD&A expenses and operating income tables below.

Consolidated SD&A expenses increased $90 million, or 5%, in the current year as compared to the prior year. Contributing to the increase in SD&A expenses were approximately $27 million of incremental operating costs associated with acquired businesses, representing approximately 1.4% of the total increase in SD&A. Normal inflation, as well as expenses associated with the Company’s investments in long-term strategic growth initiatives, including its e-Business platform, continued expansion of its telesales business through Airgas Total Access™, and regional management structure changes, also contributed to the increase. As a percentage of consolidated gross profit, consolidated SD&A expenses increased 20 basis points to 67.1% in the current year, compared to 66.9% in the prior year.

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	Years Ended
SD&A Expenses	March 31,				Increase/(Decrease)
(In thousands)	2015		2014
Distribution	$	1,792,116	$	1,705,408	$	86,708		5	%
All Other Operations	186,558		176,289		10,269			6	%
Other	—		7,426		(7,426		)
	$	1,978,674	$	1,889,123	$	89,551		5	%

SD&A expenses in the Distribution business segment increased 5%, while SD&A expenses in the All Other Operations business segment increased 6%, compared to the prior year. Contributing to the increase in SD&A expenses in the Distribution business segment were approximately $27 million of incremental operating costs associated with acquired businesses, representing approximately 1.5% of the increase in SD&A. Normal inflation, as well as expenses associated with the Company’s investments in long-term strategic growth initiatives, including its e-Business platform, continued expansion of its telesales business through Airgas Total Access™, and regional management structure changes, also contributed to the increase. As a percentage of Distribution business segment gross profit, SD&A expenses in the Distribution business segment increased 30 basis points to 66.8% compared to 66.5% in the prior year. As a percentage of All Other Operations business segment gross profit, SD&A expenses in the All Other Operations business segment increased 240 basis points to 69.6% compared to 67.2% in the prior year, primarily driven by margin pressure as noted above.

SD&A Expenses – Other

Enterprise Information System

As of March 31, 2013 the Company had successfully converted its Safety telesales and hardgoods infrastructure businesses, as well as all of its regional distribution businesses, to the SAP platform. The Company continued to incur some post-conversion support and training expenses related to the implementation of the new system through the end of fiscal 2014. SAP-related integration costs were $7.4 million in the prior year, and were recorded as SD&A expenses and not allocated to the Company’s business segments.

Depreciation and Amortization

Depreciation expense increased $22 million, or 8%, to $298 million in the current year as compared to the prior year. The increase primarily reflects the additional depreciation expense on capital investments in revenue generating assets to support customer demand (such as cylinders / bulk tanks and rental welders / generators) and $3 million of additional depreciation expense on capital assets included in acquisitions. Amortization expense of $31 million in the current year increased by $2 million compared to the prior year, driven by acquisitions.

Operating Income

Consolidated operating income of $641 million increased 2% in the current year compared to the prior year, primarily driven by organic sales growth. The consolidated operating income margin decreased 30 basis points to 12.1% compared to 12.4% in the prior year, primarily reflecting a sales mix shift toward hardgoods.

	Years Ended
Operating Income	March 31,					Increase/(Decrease)
(In thousands)	2015		2014
Distribution	$	589,334	$	579,476		$	9,858		2	%
All Other Operations	51,944		58,484			(6,540		)	(11	)%
Other	—		(7,426		)	7,426
	$	641,278	$	630,534		$	10,744		2	%

Operating income in the Distribution business segment increased 2% in the current year. The Distribution business segment’s operating income margin decreased 40 basis points to 12.3% from 12.7% in the prior year. The decline in the Distribution business segment’s operating income margin primarily reflects the sales mix shift toward lower margin hardgoods and the impact of rising operating costs and the Company’s continued investments in strategic long-term growth initiatives in the current low organic sales growth environment.

Operating income in the All Other Operations business segment decreased 11% compared to the prior year, primarily driven by the decline in refrigerants sales. The All Other Operations business segment’s operating income margin of 9.3% decreased by 140 basis points compared to the operating income margin of 10.7% in the prior year. The decrease in the All Other Operations business segment’s operating income margin was primarily driven by margin pressure in the Company’s refrigerants, CO₂ and ammonia businesses.

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Interest Expense, Net and Loss on the Extinguishment of Debt

Interest expense, net, was $62 million in the current year, representing a decrease of $11 million, or 16%, compared to the prior year. The overall decrease in interest expense, net resulted primarily from lower average borrowing rates, and to a lesser extent lower average debt balances, in the current year as compared to the prior year.

On October 2, 2013, the Company redeemed all $215 million of its 7.125% senior subordinated notes originally due to mature on October 1, 2018 (the “2018 Senior Subordinated Notes”). A loss on the early extinguishment of debt of $9.1 million related to the redemption premium and write-off of unamortized debt issuance costs was recognized in the prior year.

Income Tax Expense

The effective income tax rate was 37.0% of pre-tax earnings in the current year compared to 36.4% in the prior year. An aggregate $3.3 million in favorable state income tax items was recognized in the prior year. During the three months ended September 30, 2013, the Company recognized a $1.5 million tax benefit related to a change in a state income tax law, allowing the Company to utilize additional net operating loss carryforwards. During the three months ended March 31, 2014, the Company recognized an additional $1.8 million of tax benefits related to enacted changes in state income tax rates.

Net Earnings

Net earnings per diluted share increased 4% to $4.85 in the current year compared to $4.68 per diluted share in the prior year. Net earnings were $368 million compared to $351 million in the prior year. The current year’s earnings were not impacted by special items, while net earnings per diluted share in the prior year included $0.04 per diluted share in benefits related to changes in state income tax rates and law, and an $0.08 loss on the early extinguishment of debt.

RESULTS OF OPERATIONS: 2014 COMPARED TO 2013

OVERVIEW

Airgas had net sales for fiscal 2014 of $5.1 billion compared to $5.0 billion for the year ended March 31, 2013 (“fiscal 2013”), an increase of 2%. Total organic sales were flat compared to fiscal 2013, with gas and rent up 1% and hardgoods down 2%. Acquisitions contributed 2% sales growth in fiscal 2014. The Company’s organic sales growth reflected the impact of sluggish business conditions and persistent uncertainty in the U.S. industrial economy, which continued to challenge sales volumes to a greater degree than expected. The impact of price increases enacted in response to rising costs on multiple fronts, as well as the impact of more effective sales discount management, contributed 2% to total organic sales growth in fiscal 2014, which was offset by a negative 2% impact from volume declines. Pricing actions during fiscal 2014 were designed to address rising product, labor and benefits costs, including costs related to regulatory compliance and supply and demand imbalances for certain products. These actions also support ongoing investments in the Company’s infrastructure and technologies in order to more efficiently serve its customers and further ensure the reliability of its supply chain and safety practices.

The consolidated gross profit margin (excluding depreciation) in fiscal 2014 was 55.7%, an increase of 80 basis points from fiscal 2013, reflecting the impact of price increases, as well as the impact of more effective sales discount management, partially offset by the impacts of supplier price increases and rising internal production costs, significant margin pressure in the Company’s refrigerants business, and a sales mix shift within gases to lower-margin fuel gases.

The Company’s operating income margin increased to 12.4%, a 40 basis-point improvement over fiscal 2013. The combination of a reduction in SAP implementation costs and the achievement of SAP-related benefits contributed favorably to operating income margin during fiscal 2014 as compared to fiscal 2013. However, these favorable impacts were mostly offset by a significant decline in operating income margin in the Company’s refrigerants business, as well as by the impact of rising operating costs and the Company’s continued investments in strategic long-term growth initiatives in the low organic sales growth environment. Additionally, the operating income margin for fiscal 2013 was burdened by 20 basis points of net restructuring and other special charges.

Net earnings per diluted share rose to $4.68 in fiscal 2014 versus $4.35 in fiscal 2013. Results for fiscal 2014 included a loss of $0.08 per diluted share on the early extinguishment of the Company’s 2018 Senior Subordinated Notes, which were originally due to mature in October 2018 but were redeemed in full on October 2, 2013, as well as $0.04 per diluted share of state income tax benefits. Net earnings per diluted share included SAP-related benefits, net of implementation costs and depreciation expense, of $0.47 per diluted share in fiscal 2014 compared to $0.18 per diluted share of net expense in fiscal 2013. The favorable impact of the Company’s share repurchase program completed in the second half of fiscal 2013 on the Company’s earnings growth in fiscal 2014 was more than offset by the negative year-over-year impact related to its refrigerants business, which posted record results in fiscal 2013.

For fiscal 2013, the impact of special charges on diluted earnings per share was offset by the impact of special gains. Net special items in each year consisted of the following:

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	Years Ended
	March 31,
Effect on Diluted EPS	2014			2013
State income tax benefits	$	0.04		$	—
Loss on the extinguishment of debt	(0.08		)	—
Gain on sale of businesses	—			0.07
Restructuring and other special charges, net	—			(0.07		)
Special items, net	$	(0.04	)	$	—

The following discussion includes a more detailed review of items that significantly impacted the Company’s financial results for fiscal 2014.

Enterprise Information System

As of March 2013, the Company had successfully converted its Safety telesales, hardgoods infrastructure, and regional distribution businesses to the SAP platform, representing over 90% of the Company’s Distribution business segment. Each of its four Business Support Centers (“BSCs”), into which the regional company accounting and administrative functions were consolidated upon converting to SAP, is firmly in place.

The Company previously quantified the economic benefits expected to be achieved through its implementation of SAP in three key areas: accelerated sales growth through expansion of the telesales platform, more effective management of pricing and discounting practices, and administrative and operating efficiencies. The Company began to realize meaningful SAP-related economic benefits from more effective management of pricing and discounting practices, as well as from the expansion of its telesales platform through Airgas Total Access™, in the second half of fiscal 2013. Fiscal 2014 included $0.47 per diluted share of SAP-related benefits, net of implementation costs and depreciation expense, compared to $0.18 per diluted share of net expense in fiscal 2013. By December 31, 2013, the Company had achieved its long-standing target of reaching an annual run-rate of $75 million in SAP-enabled operating income benefits by the end of calendar year 2013.

Refrigerants Business

On March 27, 2013, the EPA issued a ruling allowing for an increase in the production and import of R-22 in calendar years 2013 and 2014, rather than reaffirming the further reductions that much of the industry, including the Company, had been expecting based on a previously issued No Action Assurances letter from the EPA. R-22 has historically been one of the most commonly-used refrigerant gases in air conditioning systems in the U.S., and many of those systems are expected to remain operational for years to come.

During fiscal 2014, the EPA’s ruling significantly pressured both volumes and pricing of R-22, as a greater-than-expected amount of virgin R-22 was available in the marketplace. The year-over-year negative impact of the EPA’s ruling on the Company’s net earnings was approximately $0.20 per diluted share following fiscal 2013’s record performance in the refrigerants business, due in part to a previously issued No Action Assurances letter from the EPA.

Financing

On October 1, 2013, the Company repaid $300 million of indebtedness associated with its 2.85% senior notes (the “2013 Notes”) upon their maturity.

The Company’s $215 million of 2018 Senior Subordinated Notes were originally due to mature on October 1, 2018. The 2018 Senior Subordinated Notes had a redemption provision which permitted the Company, at its option, to call the 2018 Senior Subordinated Notes at scheduled dates and prices beginning on October 1, 2013. On October 2, 2013, the 2018 Senior Subordinated Notes were redeemed in full at a price of 103.563%. A loss on the early extinguishment of the 2018 Senior Subordinated Notes of $9.1 million was recognized during the year ended March 31, 2014 related to the redemption premium and the write-off of unamortized debt issuance costs.

Acquisitions

During fiscal 2014, the Company acquired eleven businesses with aggregate historical annual sales of approximately $82 million. The largest of these businesses was The Encompass Gas Group, Inc. (“Encompass”), headquartered in Rockford, Illinois. With eleven locations in Illinois, Wisconsin, and Iowa, Encompass was one of the largest privately-owned suppliers of industrial, medical, and specialty gases and related hardgoods in the United States, generating approximately $55 million in annual sales in calendar 2012.

STATEMENT OF EARNINGS COMMENTARY - FISCAL YEAR ENDED MARCH 31, 2014 COMPARED TO FISCAL YEAR ENDED MARCH 31, 2013

Net Sales

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Net sales increased 2% to $5.1 billion for fiscal 2014 compared to fiscal 2013, with flat organic sales growth and incremental sales of 2% contributed by acquisitions. Gas and rent organic sales increased 1% and hardgoods decreased 2%. The impact of price increases enacted in response to rising costs on multiple fronts, as well as the impact of more effective sales discount management, contributed 2% to organic sales growth in fiscal 2014, which was offset by a negative 2% impact from volume declines.

For fiscal 2014, sales of strategic products increased 3% on an organic basis as compared to fiscal 2013. Sales to strategic accounts also grew 3%, driven by new account signings, expansion of locations served and product lines sold to existing accounts, and positive pricing more than offsetting the lower levels of activity in several areas, including mining and related equipment manufacturing, defense contractors and some pressure in the medical homecare market.

In the following table, the intercompany eliminations represent sales from the All Other Operations business segment to the Distribution business segment.

	Years Ended
Net Sales	March 31,						Increase/(Decrease)
(In thousands)	2014			2013
Distribution	$	4,558,790		$	4,398,105		$	160,685		4	%
All Other Operations	544,154			593,598			(49,444		)	(8	)%
Intercompany eliminations	(30,407		)	(34,206		)	3,799
	$	5,072,537		$	4,957,497		$	115,040		2	%

Distribution business segment sales increased 4% compared to fiscal 2013 with an increase in organic sales of 1% and incremental sales of 3% contributed by acquisitions. The impact of price increases as well as more effective sales discount management contributed 3% to organic sales growth in the Distribution business segment, more than offsetting the negative 2% impact from volume declines. Gas and rent organic sales in the Distribution business segment increased 3%, with pricing up 5% and volumes down 2%. Hardgoods organic sales within the Distribution business segment declined 1%, reflecting pricing increases of 1% and volume decreases of 2%.

Sales of strategic gas products sold through the Distribution business segment in fiscal 2014 increased 4% from fiscal 2013. Among strategic gas products, bulk gas sales were up 5% as a result of higher pricing and volumes. Sales of medical gases were up 3% as a result of higher pricing and volumes across most medical segments and new customer signings, partially offset by weakness in the homecare segment. Sales of specialty gases were up 6%, with increases in both prices and volumes.

Sales of both Safety products and the Company’s Radnor® private-label brand product line helped moderate the organic sales decline in hardgoods for the Distribution business segment. Safety product sales increased 2% in fiscal 2014, and the Company’s Radnor® private-label line was up 2% for fiscal 2014. Both compared favorably to the 1% decline in hardgoods organic sales in the Distribution business segment but were weaker than expected.

The All Other Operations business segment sales decreased 8% in total and 9% on an organic basis compared to fiscal 2013, with incremental sales of 1% contributed by acquisitions. The organic sales decrease in the All Other Operations business segment during fiscal 2014, which decreased on both a volume and price basis, was primarily driven by the negative impact of the March 2013 EPA ruling on R-22 production and import allowances on the Company’s refrigerants business, as well as declines in the Company’s ammonia and CO₂ businesses during fiscal 2014.

Gross Profits (Excluding Depreciation)

Consolidated gross profits (excluding depreciation) increased 4% in fiscal 2014 compared to fiscal 2013. The consolidated gross profit margin (excluding depreciation) in fiscal 2014 increased 80 basis points to 55.7% compared to 54.9% in fiscal 2013. The increase in the consolidated gross profit margin (excluding depreciation) primarily reflects the impact of price increases, as well as the impact of more effective sales discount management, partially offset by the impacts of supplier price increases and rising internal production costs, significant margin pressure in the Company’s refrigerants business, and a sales mix shift within gases to lower-margin fuel gases. A sales mix shift toward higher-margin gas and rent also drove the higher consolidated gross profit margin (excluding depreciation) for fiscal 2014. Gas and rent represented 63.6% of the Company’s sales mix in fiscal 2014, up from 63.2% in fiscal 2013.

	Years Ended
Gross Profits (ex. Depr.)	March 31,				Increase/(Decrease)
(In thousands)	2014		2013
Distribution	$	2,562,725	$	2,439,532	$	123,193		5	%
All Other Operations	262,238		282,398		(20,160		)	(7	)%
	$	2,824,963	$	2,721,930	$	103,033		4	%

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The Distribution business segment’s gross profits (excluding depreciation) increased 5% compared to fiscal 2013. The Distribution business segment’s gross profit margin (excluding depreciation) was 56.2% versus 55.5% in fiscal 2013, an increase of 70 basis points. The increase in the Distribution business segment’s gross profit margin (excluding depreciation) reflects the sales mix shift toward higher-margin gas and rent, and the impact of price increases as well as more effective sales discount management, partially offset by the impacts of supplier price increases and rising internal production costs, and a sales mix shift within gases to lower-margin fuel gases. As a percentage of the Distribution business segment’s sales, gas and rent increased 100 basis points to 59.6% in fiscal 2014 as compared to 58.6% in fiscal 2013.

The All Other Operations business segment’s gross profits (excluding depreciation) decreased 7% compared to fiscal 2013, largely as a result of reduced gross profits (excluding depreciation) in the refrigerants business due to the EPA’s ruling in late March 2013. The All Other Operations business segment’s gross profit margin (excluding depreciation) increased 60 basis points to 48.2% in fiscal 2014 from 47.6% in fiscal 2013. The increase in the All Other Operations business segment’s gross profit margin (excluding depreciation) was primarily the result of improvement in ammonia margins and less lower-margin refrigerants in the sales mix, partially offset by margin erosion in the refrigerants business.

Operating Expenses

SD&A Expenses

Consolidated SD&A expenses increased $61 million, or 3%, in fiscal 2014 as compared to fiscal 2013. Contributing to the increase in SD&A expenses were approximately $25 million of incremental operating costs associated with acquired businesses. Also contributing to the increase in SD&A expenses were staffing, training, and other setup costs associated with the expansion of the Airgas Total Access™ telesales program, costs associated with the analysis and execution of the Company’s strategic pricing initiative and enhancement of its e-Business platform, rising health care costs, and higher operating costs due to severe winter weather. The incremental expenses related to these strategic initiatives, health care costs and severe winter weather more than offset the favorable impact of the reduction in SAP implementation costs compared to fiscal 2013. As a percentage of consolidated gross profit, consolidated SD&A expenses decreased 30 basis points to 66.9% in fiscal 2014, compared to 67.2% in fiscal 2013.

	Years Ended
SD&A Expenses	March 31,				Increase/(Decrease)
(In thousands)	2014		2013
Distribution	$	1,705,408	$	1,620,651	$	84,757		5	%
All Other Operations	176,289		174,643		1,646			1	%
Other	7,426		33,230		(25,804		)
	$	1,889,123	$	1,828,524	$	60,599		3	%

SD&A expenses in the Distribution and All Other Operations business segments increased 5% and 1%, respectively, in fiscal 2014. For the Distribution business segment, approximately 1.5% of the increase in SD&A costs was driven by incremental operating costs associated with acquired businesses of $24 million. Rising health care costs and expenses associated with the expansion of the Airgas Total Access™ telesales program, the Company’s strategic pricing initiative and the enhancement of the Company’s e-Business platform also contributed to the increase in SD&A expenses in the Distribution business segment. For the All Other Operations business segment, $1 million of the increase in SD&A costs was related to incremental operating costs associated with acquired businesses. As a percentage of Distribution business segment gross profit, SD&A expenses in the Distribution business segment increased 10 basis points to 66.5% compared to 66.4% in fiscal 2013. As a percentage of All Other Operations business segment gross profit, SD&A expenses in the All Other Operations business segment increased 540 basis points to 67.2% compared to 61.8% in fiscal 2013, primarily due to sales declines in the Company’s refrigerants, ammonia and CO₂ businesses.

SD&A Expenses – Other

Enterprise Information System

As of March, 31, 2013 the Company had successfully converted its Safety telesales and hardgoods infrastructure businesses, as well as all of its regional distribution businesses, to the SAP platform. The Company continued to incur some post-conversion support and training expenses related to the implementation of the new system through the end of fiscal 2014. SAP-related costs were $7.4 million for fiscal 2014 as compared to $33.2 million in fiscal 2013, and were recorded as SD&A expenses and not allocated to the Company’s business segments.

Restructuring and Other Special Charges, Net

The Company’s restructuring and other special charges, net are not allocated to the Company’s business segments. These costs are captured in a separate line item on the Company’s consolidated statements of earnings and are reflected in the “Other”

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line item in the operating income table below. The Company incurred no restructuring and other special charges for fiscal 2014. The following table presents the components of restructuring and other special charges, net for fiscal 2013:

	Years Ended
Restructuring and Other Special Charges, Net	March 31,
(In thousands)	2013
Restructuring costs (benefits), net	$	(2,177	)
Other related costs	8,537
Asset impairment charges	1,729
	$	8,089

Restructuring and Other Related Costs

In May 2011, the Company announced the alignment of its then twelve regional distribution companies into four new divisions, and the consolidation of its regional company accounting and certain administrative functions into four newly created BSCs. Additionally, the Company initiated a related change in its legal entity structure on January 1, 2012 whereby each Airgas regional distribution company would merge, once converted to SAP, into a single limited liability company (“LLC”) of which Airgas, Inc. is the sole member. Prior to conversion to SAP, each of the Company’s twelve regional distribution companies operated its own accounting and administrative functions. Enabled by the Company’s conversion to a single information platform across all of its regional distribution businesses as part of the SAP implementation, the restructuring allows Airgas to more effectively utilize its resources across its regional distribution businesses and form an operating structure to leverage the full benefits of its new SAP platform.

As of March 31, 2013, the divisional alignment was complete and all material costs related to the restructuring had been incurred.

During fiscal 2013, the Company recorded $2.2 million in net restructuring benefits. In fiscal 2013, the Company re-evaluated its remaining severance liability related to the divisional realignment and, as a result of this analysis, reduced its severance liability by $3.7 million. The change in estimate was driven by fewer than expected individuals meeting the requirements to receive severance benefits. This reduction was due to both the retention of employees through relocation or acceptance of new positions, as well as former associates who chose not to remain with the Company through their designated separation dates. Offsetting the benefit from the reduction to the severance liability were additional restructuring costs of $1.5 million, primarily related to relocation and other costs. The Company also incurred $8.5 million of other costs in fiscal 2013 related to the divisional alignment and LLC formation. These costs primarily related to transition staffing for the BSCs, legal costs and other expenses associated with the Company’s organizational and legal entity changes.

Asset Impairment Charge

In June 2012, the Company re-evaluated the economic viability of a small hospital piping construction business. As a result of an impairment analysis performed on the long-lived assets at the associated reporting unit, the Company recorded a charge of $1.7 million related to certain of the other intangible assets associated with this business during fiscal 2013.

Depreciation and Amortization

Depreciation expense increased $14 million or 5%, to $275 million in fiscal 2014 as compared to fiscal 2013. The increase primarily reflects the additional depreciation expense on capital investments in revenue generating assets to support customer demand (such as cylinders, rental welders and bulk tanks) and $3 million of additional depreciation expense on capital assets included in acquisitions. Amortization expense of $30 million in fiscal 2014 was $3 million higher than fiscal 2013, driven by acquisitions.

Operating Income

Consolidated operating income of $631 million increased 6% in fiscal 2014 compared to fiscal 2013. The consolidated operating income margin increased 40 basis points to 12.4% from 12.0% in fiscal 2013. The combination of a reduction in SAP implementation costs and the achievement of SAP-related benefits contributed favorably to operating income margin during fiscal 2014 as compared to fiscal 2013. However, these favorable impacts were mostly offset by a significant decline in operating income margin in the Company’s refrigerants business, as well as by the impact of rising operating costs and the Company’s continued investments in strategic long-term growth initiatives in the current low organic sales growth environment. Additionally, fiscal 2013’s operating income margin was burdened by 20 basis points of net restructuring and other special charges.

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	Years Ended
Operating Income	March 31,						Increase/(Decrease)
(In thousands)	2014			2013
Distribution	$	579,476		$	556,417		$	23,059		4	%
All Other Operations	58,484			81,319			(22,835		)	(28	)%
Other	(7,426		)	(41,319		)	33,893
	$	630,534		$	596,417		$	34,117		6	%

Operating income in the Distribution business segment increased 4% in fiscal 2014. The Distribution business segment’s operating income margin of 12.7% was consistent with that of fiscal 2013. The Distribution business segment’s operating income margin as compared to fiscal 2013 reflects the achievement of net SAP-related benefits in fiscal 2014, offset by the impact of rising operating costs and the Company’s continued investments in strategic long-term growth initiatives in the current low organic sales growth environment.

Operating income in the All Other Operations business segment decreased 28% compared to fiscal 2013, primarily driven by the decline in refrigerants sales. The All Other Operations business segment’s operating income margin of 10.7% decreased by 300 basis points compared to the operating income margin of 13.7% in fiscal 2013, primarily driven by margin compression in the refrigerants business.

Interest Expense, Net and Loss on the Extinguishment of Debt

Interest expense, net, was $74 million in fiscal 2014, representing an increase of $6 million, or 9%, compared to fiscal 2013. The increase in interest expense, net was primarily driven by higher average borrowings related to the Company’s $600 million share repurchase program, which was authorized and completed during the second half of fiscal 2013. The increase in interest expense, net was partially offset by the retirements of the Company’s 2013 Notes and 2018 Senior Subordinated Notes during fiscal 2014.

On October 2, 2013, the Company redeemed all $215 million of its outstanding 2018 Senior Subordinated Notes. A loss on the early extinguishment of debt of $9.1 million related to the redemption premium and write-off of unamortized debt issuance costs was recognized in fiscal 2014.

Income Tax Expense

The effective income tax rate was 36.4% of pre-tax earnings in fiscal 2014 compared to 37.3% in fiscal 2013. The decrease in the effective income tax rate was primarily the result of an aggregate $3.3 million in favorable state income tax items recognized in fiscal 2014. During the three months ended September 30, 2013, the Company recognized a $1.5 million tax benefit related to a change in a state income tax law, allowing the Company to utilize additional net operating loss carryforwards. During the three months ended March 31, 2014, the Company recognized an additional $1.8 million of tax benefits related to enacted changes in state income tax rates.

Net Earnings

Net earnings per diluted share increased by 8% to $4.68 in fiscal 2014 compared to $4.35 per diluted share in fiscal 2013. Net earnings were $351 million compared to $341 million in fiscal 2013. Fiscal 2014’s diluted earnings per share included SAP-related benefits, net of implementation costs and depreciation expense, of $0.47, representing a favorable $0.65 year-over-year change from the $0.18 of net expense in fiscal 2013. Net earnings per diluted share in fiscal 2014 included net special charges of $0.04, while fiscal 2013’s earnings were not impacted on a net basis by special items.

LIQUIDITY AND CAPITAL RESOURCES

Cash Flows

Net cash provided by operating activities was $718 million in fiscal 2015 compared to $745 million in fiscal 2014 and $550 million in fiscal 2013.

The following table provides a summary of the major items affecting the Company’s cash flows from operating activities for the years presented:

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	Years Ended March 31,
(In thousands)	2015			2014			2013
Net earnings	$	368,086		$	350,784		$	340,874
Non-cash and non-operating activities (1)	388,789			335,284			345,618
Changes in working capital	(26,192		)	63,998			(130,234		)
Other operating activities	(12,646		)	(5,206		)	(5,990		)
Net cash provided by operating activities	$	718,037		$	744,860		$	550,268

____________________

⁽¹⁾ Includes depreciation, amortization, asset impairment charges, deferred income taxes, gains on sales of plant, equipment and businesses, stock-based compensation expense, and losses on the extinguishment of debt.

The cash outflow related to working capital in the current year was primarily driven by the timing of income tax payments due to changes in tax laws. The cash inflow related to working capital in fiscal 2014 was primarily driven by a lower required investment in working capital, reflecting a low organic sales growth environment, improved accounts receivable management following the Company’s SAP conversions and the timing of income tax payments. The fiscal 2013 outflow for working capital reflected an increased year-over-year investment in inventory related to the Company’s expanded telesales program and the higher cost of refrigerants inventory.

Net earnings plus non-cash and non-operating activities provided cash of $757 million in fiscal 2015 versus $686 million in fiscal 2014 and $686 million in fiscal 2013.

As of March 31, 2015, $21 million of the Company’s $51 million cash balance was held by foreign subsidiaries. The Company does not believe it will be necessary to repatriate cash held outside of the U.S. and anticipates its domestic liquidity needs will be met through other funding sources such as cash flows generated from operating activities and external financing arrangements. Accordingly, the Company intends to permanently reinvest the cash in its foreign operations to support working capital needs, investing and financing activities, and future business development. Were the Company’s intention to change, the amounts held within its foreign operations could be repatriated to the U.S., although any repatriations under current U.S. tax laws would be subject to income taxes, net of applicable foreign tax credits.

The following table provides a summary of the major items affecting the Company’s cash flows from investing activities for the years presented:

	Years Ended March 31,
(In thousands)	2015			2014			2013
Capital expenditures	$	(468,789	)	$	(354,587	)	$	(325,465	)
Proceeds from sales of plant, equipment and businesses	23,083			15,483			31,413
Business acquisitions and holdback settlements	(51,382		)	(203,529		)	(97,521		)
Other investing activities	325			(951		)	(1,286		)
Net cash used in investing activities	$	(496,763	)	$	(543,584	)	$	(392,859	)

Capital expenditures as a percent of sales were 8.8%, 7.0% and 6.6%, respectively, for fiscal years 2015, 2014 and 2013. The increase in capital expenditures in the current year compared to the prior year period reflects the Company’s higher investments in revenue generating assets, such as rental welding and generator equipment, cylinders and bulk tanks to support sales growth; the construction of new air separation units in Kentucky and Illinois and a new hardgoods distribution center in Wisconsin; and the development of the Company’s e-Business platform. The increase in capital expenditures in fiscal 2014 compared to fiscal 2013 reflects higher investments in revenue generating assets, such as rental welding equipment, cylinders and bulk tanks to support sales growth, as well as investments in infrastructure to support the Company’s e-Commerce and strategic pricing initiatives, partially offset by capital expenditures related to the purchase of a new hardgoods distribution center in Bristol, Pennsylvania in fiscal 2013. In fiscal 2015, the company paid $51 million to acquire fourteen businesses and to settle holdback liabilities, which excludes cash paid related to certain contingent consideration arrangements that are reflected as financing activities. In fiscal 2014, the company paid $204 million to acquire eleven businesses and to settle holdback liabilities, which excludes cash paid related to certain contingent consideration arrangements that are reflected as financing activities. Additionally, during fiscal 2013, the Company sold five branch locations in western Canada and received incremental proceeds of $16 million in addition to proceeds from sales of other plant and equipment.

Free cash flow* in fiscal 2015 was $309 million, compared to $441 million in fiscal 2014 and $298 million in fiscal 2013.

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* Free cash flow is a financial measure calculated as net cash provided by operating activities minus capital expenditures, adjusted for the impacts of certain items. See Non-GAAP reconciliation and components of free cash flow at the end of this section.

The following table provides a summary of the major items affecting the Company’s cash flows from financing activities for the years presented:

	Years Ended March 31,
(In thousands)	2015			2014			2013
Net cash borrowings (repayments)	$	(161,260	)	$	(113,374	)	$	452,952
Purchase of treasury stock	—			(8,127		)	(591,873		)
Dividends paid to stockholders	(164,517		)	(141,461		)	(122,202		)
Other financing activities	85,666			44,861			145,437
Net cash used in financing activities	$	(240,111	)	$	(218,101	)	$	(115,686	)

In fiscal 2015, net financing activities used cash of $240 million. Net cash repayments on debt obligations were $161 million, primarily related to the repayment of $400 million of 4.50% senior notes that matured on September 15, 2014, partially offset by the June 2014 issuance of $300 million of 3.65% senior notes maturing on July 15, 2024 and repayment of $63 million under the commercial paper program. Other financing activities, primarily comprised of proceeds and excess tax benefits related to the exercise of stock options and stock issued for the employee stock purchase plan, generated cash of $86 million during the current year.

In fiscal 2014, net financing activities used cash of $218 million. Net cash repayments on debt obligations were $113 million, primarily related to the early redemption of the Company’s 2018 Senior Subordinated Notes and repayment of its 2013 Notes upon their maturity in October 2013. The note repayments were financed with proceeds from the Company’s commercial paper program, excess cash and borrowings under its trade receivables securitization facility. Other financing activities, primarily comprised of proceeds and excess tax benefits related to the exercise of stock options and stock issued for the employee stock purchase plan, generated cash of $45 million during the current year.

In fiscal 2013, net financing activities used cash of $116 million. Net cash borrowings were a source of $453 million, primarily related to the issuance of $325 million of 1.65% senior notes maturing on February 15, 2018, $275 million of 2.375% senior notes maturing on February 15, 2020 and $250 million of 2.90% senior notes maturing on November 15, 2022, offset by the pay down of $388 million of commercial paper. Proceeds from the senior notes were primarily used to fund acquisitions and share repurchases and to pay down the balance on the commercial paper program. As a result, there were no outstanding borrowings under the commercial paper program at March 31, 2013. On October 23, 2012, the Company announced a $600 million share repurchase program. By March 31, 2013, the Company had completed the program, repurchasing 6.29 million shares on the open market at an average price of $95.37. Due to the settlement timing of the last repurchase, $8.1 million of these repurchases were reflected as a cash outflow in the first quarter of fiscal 2014. Other financing activities, primarily comprised of proceeds and excess tax benefits related to the exercise of stock options and stock issued for the employee stock purchase plan, generated cash of $145 million driven by higher levels of stock option exercise activity and the associated excess tax benefits.

Dividends

In fiscal 2015, the Company paid its stockholders $165 million in dividends or $0.55 per share in all four quarters. During fiscal 2014, the Company paid dividends of $141 million or $0.48 per share in all four quarters. During fiscal 2013, the Company paid its stockholders $122 million in dividends or $0.40 per share in all four quarters. Future dividend declarations and associated amounts paid will depend upon the Company’s earnings, financial condition, loan covenants, capital requirements and other factors deemed relevant by management and the Company’s Board of Directors.

Financial Instruments and Sources of Liquidity

In addition to utilizing cash from operations, the Company has various liquidity resources available to meet its future cash requirements for working capital, capital expenditures and other financial commitments. See Note 9 to the Company’s consolidated financial statements under Item 8, “Financial Statements and Supplementary Data” for additional information on the Company’s debt instruments.

Money Market Loans

The Company has two separate money market loan agreements with financial institutions to provide access to short-term advances not to exceed $35 million for each respective agreement. At March 31, 2015, there were no advances outstanding under the agreements.

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Commercial Paper

The Company participates in a $1 billion commercial paper program supported by its Credit Facility (see below). This program allows the Company to obtain favorable short-term borrowing rates withmaturities that vary, but will generally not exceed 90 days from the date of issue, and is classified as short-term debt.At maturity, the commercial paper balances are often rolled over rather than repaid or refinanced, depending on the Company’s cash and liquidity positions.The Company has used proceeds from commercial paper issuances for general corporate purposes. During fiscal 2015, proceeds from the issuance of an aggregate $300 million of senior notes in June 2014 were principally used to pay down commercial paper. Subsequently, the Company primarily used commercial paper to redeem its $400 million of 4.50% senior notes which matured in September 2014.

Trade Receivables Securitization

The Company participates in a securitization agreement with three commercial bank conduits to which it sells qualifying trade receivables on a revolving basis (the “Securitization Agreement”), up to a maximum amount of $295 million. The Company’s sale of qualified trade receivables is accounted for as a secured borrowing under which qualified trade receivables collateralize amounts borrowed from the commercial bank conduits. At March 31, 2015, the amount of outstanding borrowing under the Securitization Agreement was $295 million.

Senior Credit Facility

The Company participates in a $1 billion Amended and Restated Credit Facility (the “Credit Facility”). The Credit Facility consists of an $875 million U.S. dollar revolving credit line, with a $100 million letter of credit sublimit and a $75 million swingline sublimit, and a $125 million (U.S. dollar equivalent) multi-currency revolving credit line. Under circumstances described in the Credit Facility, the revolving credit line may be increased by an additional $500 million, provided that the multi-currency revolving credit line may not be increased by more than an additional $50 million.

At March 31, 2015, the financial covenant of the Credit Facility did not restrict the Company’s ability to borrow on the unused portion of the Credit Facility. The Credit Facility contains customary events of default including, without limitation, failure to make payments, a cross-default to certain other debt, breaches of covenants, breaches of representations and warranties, certain monetary judgments and bankruptcy and ERISA events. In the event of default, repayment of borrowings under the Credit Facility may be accelerated.

Senior Notes

In June 2014, the Company issued $300 million of 3.65% senior notes maturing on July 15, 2024, which were principally used to pay down commercial paper. In September 2014, the Company repaid its maturing $400 million of 4.50% senior notes primarily through the use of commercial paper issuances.

Total Borrowing Capacity

The Company believes that it has sufficient liquidity to meet its working capital, capital expenditure and other financial commitments, including its $250 million of 3.25% senior notes maturing on October 1, 2015. The sources of that liquidity include cash from operations, availability under the Company’s commercial paper program, Securitization Agreement and revolving credit facilities, and potential capital markets transactions. The financial covenant under the Company’s Credit Facility requires the Company to maintain a leverage ratio not higher than 3.5x Debt to EBITDA. The leverage ratio is a contractually defined amount principally reflecting debt and, historically, the amounts outstanding under the Securitization Agreement (“Debt”), divided by a contractually defined Earnings Before Interest, Taxes, Depreciation and Amortization (“EBITDA”) financial measure for the trailing twelve-month period with pro forma adjustments for acquisitions. The financial covenant calculations of the Credit Facility include the pro forma results of acquired businesses. Therefore, total borrowing capacity is not reduced dollar-for-dollar with acquisition financing. The leverage ratio measures the Company’s ability to meet current and future obligations. At March 31, 2015, the Company’s leverage ratio was 2.4x and $575 million remained available under the Company’s Credit Facility, after giving effect to the commercial paper program backstopped by the Credit Facility, the outstanding U.S. letters of credit and the borrowings under the multi-currency revolver.

The Company continually evaluates alternative financing arrangements and believes that it can obtain financing on reasonable terms. The terms of any future financing arrangements depend on market conditions and the Company’s financial position at that time. At March 31, 2015, the Company was in compliance with all covenants under all of its debt agreements.

Interest Rate Derivatives

The Company manages its exposure to changes in market interest rates through the occasional use of interest rate derivative instruments, when deemed appropriate. At March 31, 2015, the Company had no derivative instruments outstanding.

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Interest Expense

Based on the Company’s fixed-to-variable interest rate ratio as of March 31, 2015, for every 25 basis point increase in the Company’s average variable borrowing rates, the Company estimates that its annual interest expense would increase by approximately$1.7 million.

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Non-GAAP Reconciliations

Adjusted Cash from Operations, Adjusted Capital Expenditures, and Free Cash Flow

	Years Ended March 31,
(In thousands)	2015			2014			2013
Net cash provided by operating activities	$	718,037		$	744,860		$	550,268
Adjustments to net cash provided by operating activities:
Stock issued for the Employee Stock Purchase Plan	17,940			17,313			17,088
Excess tax benefit realized from the exercise of stock options	16,045			13,668			36,160
Adjusted cash from operations	752,022			775,841			603,516
Capital expenditures	(468,789		)	(354,587		)	(325,465		)
Adjustments to capital expenditures:
Proceeds from sales of plant and equipment	23,083			15,483			15,693
Operating lease buyouts	3,159			4,420			3,946
Adjusted capital expenditures	(442,547		)	(334,684		)	(305,826		)
Free cash flow	$	309,475		$	441,157		$	297,690
Net cash used in investing activities	$	(496,763	)	$	(543,584	)	$	(392,859	)
Net cash used in financing activities	$	(240,111	)	$	(218,101	)	$	(115,686	)

The Company believes its free cash flow financial measure provides investors meaningful insight into its ability to generate cash from operations, which is available for servicing debt obligations and for the execution of its business strategies, including acquisitions, the prepayment of debt, the payment of dividends, or to support other investing and financing activities. The Company’s free cash flow financial measure has limitations and does not represent the residual cash flow available for discretionary expenditures. Certain non-discretionary expenditures such as payments on maturing debt obligations are excluded from the Company’s computation of its free cash flow financial measure. Non-GAAP financial measures should be read in conjunction with GAAP financial measures, as non-GAAP financial measures are merely a supplement to, and not a replacement for, GAAP financial measures. It should also be noted that the Company’s free cash flow financial measure may be different from free cash flow financial measures provided by other companies.

OTHER

Critical Accounting Estimates

The preparation of financial statements and related disclosures in conformity with U.S. generally accepted accounting principles requires management to make judgments, assumptions and estimates that affect the amounts reported in the consolidated financial statements and accompanying notes. Note 1 to the consolidated financial statements included under Item 8, “Financial Statements and Supplementary Data,” describes the significant accounting policies and methods used in the preparation of the consolidated financial statements. Estimates are used for, but not limited to, determining the net carrying value of trade receivables, inventories, goodwill, business insurance reserves and deferred income tax assets. Uncertainties about future events make these estimates susceptible to change. Management evaluates these estimates regularly and believes they are the best estimates, appropriately made, given the known facts and circumstances. For the three years ended March 31, 2015, there were no material changes in the valuation methods or assumptions used by management. However, actual results could differ from these estimates under different assumptions and circumstances. The Company believes the following accounting estimates are critical due to the subjectivity and judgment necessary to account for these matters, their susceptibility to change and the potential impact that different assumptions could have on operating performance or financial position.

Trade Receivables

The Company maintains an allowance for doubtful accounts, which includes sales returns, sales allowances and bad debts. The allowance adjusts the carrying value of trade receivables for the estimate of accounts that will ultimately not be collected. An allowance for doubtful accounts is generally established as trade receivables age beyond their due dates, whether as bad debts or as sales returns and allowances. As past due balances age, higher valuation allowances are established, thereby lowering the net carrying value of receivables. The amount of valuation allowance established for each past-due period reflects the Company’s historical collections experience, including that related to sales returns and allowances, as well as current economic conditions and trends. The Company also qualitatively establishes valuation allowances for specific problem accounts and bankruptcies, and other accounts that the Company deems relevant for specifically identified allowances. The

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amounts ultimately collected on past due trade receivables are subject to numerous factors including general economic conditions, the condition of the receivable portfolios assumed in acquisitions, the financial condition of individual customers and the terms of reorganization for accounts exiting bankruptcy. Changes in these conditions impact the Company’s collection experience and may result in the recognition of higher or lower valuation allowances. Management evaluates the allowance for doubtful accounts monthly. Historically, bad debt expense reflected in the Company’s financial results has generally been in the range of 0.3% to 0.5% of net sales. The Company has a low concentration of credit risk due to its broad and diversified customer base across multiple industries and geographic locations, and its relatively low average order size. The Company’s largest customer accounts for less than1%of total net sales.

Inventories

The Company’s inventories are stated at the lower of cost or market. The majority of the products the Company carries in inventory have long shelf lives and are not subject to technological obsolescence. The Company writes its inventory down to its estimated market value when it believes the market value is below cost. The Company estimates its ability to recover the costs of items in inventory by product type based on factors including the age of the products, the rate at which the product line is turning in inventory, the products’ physical condition and assumptions about future demand and market conditions. The ability of the Company to recover the cost of products in inventory can be affected by factors such as future customer demand, general market conditions and the Company’s relationships with significant suppliers. Management evaluates the recoverability of its inventory at least quarterly. In aggregate, inventory turns four-to-five times per year on average.

Goodwill

The Company is required to test goodwill associated with each of its reporting units for impairment at least annually and whenever events or circumstances indicate that it is more likely than not that goodwill may be impaired. The Company performs its annual goodwill impairment test as of October 31 of each year.

Goodwill is tested for impairment at the reporting unit level. The Company has determined that its reporting units for goodwill impairment testing purposes are equivalent to the operating segments used in the Company’s segment reporting (see Note 21 to the consolidated financial statements). In performing tests for goodwill impairment, the Company is permitted to first perform a qualitative assessment about the likelihood of the carrying value of a reporting unit exceeding its fair value. If an entity determines that it is more likely than not that the fair value of a reporting unit is less than its carrying amount based on the qualitative assessment, it is required to perform the two-step goodwill impairment test described below to identify the potential goodwill impairment and measure the amount of the goodwill impairment loss, if any, to be recognized for that reporting unit. However, if an entity concludes otherwise based on the qualitative assessment, the two-step goodwill impairment test is not required. The option to perform the qualitative assessment can be utilized at the Company’s discretion, and the qualitative assessment need not be applied to all reporting units in a given goodwill impairment test. For an individual reporting unit, if the Company elects not to perform the qualitative assessment, or if the qualitative assessment indicates that it is more likely than not that the fair value of a reporting unit is less than its carrying amount, then the Company must perform the two-step goodwill impairment test for the reporting unit.

In applying the two-step process, the first step used to identify potential impairment involves comparing the reporting unit’s estimated fair value to its carrying value, including goodwill. For this purpose, the Company uses a discounted cash flow approach to develop the estimated fair value of each reporting unit. Management judgment is required in developing the assumptions for the discounted cash flow model. These assumptions include revenue growth rates, profit margins, future capital expenditures, working capital needs, discount rates and perpetual growth rates. If the estimated fair value of a reporting unit exceeds its carrying value, goodwill is not impaired. If the carrying value exceeds the estimated fair value, there is an indication of potential impairment and the second step is performed to measure the amount of impairment, if any.

The second step of the process involves the calculation of an implied fair value of goodwill for each reporting unit for which step one indicated potential impairment. The implied fair value of goodwill is determined in a manner similar to how goodwill is calculated in a business combination. That is, the estimated fair value of the reporting unit, as calculated in step one, is allocated to the individual assets and liabilities as if the reporting unit was being acquired in a business combination. If the implied fair value of goodwill exceeds the carrying value of goodwill assigned to the reporting unit, there is no impairment. If the carrying value of goodwill assigned to a reporting unit exceeds the implied fair value of the goodwill, an impairment charge is recorded to write down the carrying value. An impairment loss cannot exceed the carrying value of goodwill assigned to a reporting unit and the loss establishes a new basis in the goodwill. Subsequent reversal of an impairment loss is not permitted.

The discount rate, sales growth and profitability assumptions, and perpetual growth rate are the material assumptions utilized in the discounted cash flow model used to estimate the fair value of each reporting unit. The Company’s discount rate reflects a weighted average cost of capital (“WACC”) for a peer group of companies in the chemical manufacturing industry with an equity size premium added, as applicable, for each reporting unit. The WACC is calculated based on observable market data. Some of this data (such as the risk-free or Treasury rate and the pre-tax cost of debt) are based on market data at a point in time. Other data (such as beta and the equity risk premium) are based upon market data over time.

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The discounted cash flow analysis requires estimates, assumptions and judgments about future events. The Company’s analysis uses internally generated budgets and long-range forecasts. The Company’s discounted cash flow analysis uses the assumptions in these budgets and forecasts about sales trends, inflation, working capital needs and forecasted capital expenditures along with an estimate of the reporting unit’s terminal value (the value of the reporting unit at the end of the forecast period) to determine the fair value of each reporting unit. The Company’s assumptions about working capital needs and capital expenditures are based on historical experience. The perpetual growth rate assumed in the discounted cash flow model is consistent with the long-term growth rate as measured by the U.S. Gross Domestic Product and the industry’s long-term rate of growth.

The Company’s methodology used for valuing its reporting units for the purpose of its goodwill impairment test is consistent with the prior year. The Company believes the assumptions used in its discounted cash flow analysis are appropriate and result in reasonable estimates of the fair value of each reporting unit. However, the Company may not meet its sales growth and profitability targets, working capital needs and capital expenditures may be higher than forecast, changes in credit markets may result in changes to the Company’s discount rate and general business conditions may result in changes to the Company’s terminal value assumptions for its reporting units.

In performing the October 31, 2014 annual goodwill impairment test, the Company elected to utilize the qualitative assessment for all of its reporting units with the exception of its refrigerants business in the All Other Operations business segment, for which the Company proceeded directly to performing the first step of the two-step goodwill impairment test. The assessment for all reporting units did not indicate that any of the reporting units’ goodwill was potentially impaired. See Note 7 to the Company’s consolidated financial statements included in Item 8, “Financial Statements and Supplementary Data,” for details of the annual goodwill impairment test.

Business Insurance Reserves

The Company has established insurance programs to cover workers’ compensation, business automobile and general liability claims. During fiscal years 2015, 2014 and 2013, these programs had deductible limits of $1 million per occurrence. For fiscal 2016, the deductible limits are expected to remain at $1 million per occurrence. The Company reserves for its deductible based on individual claim evaluations, establishing loss estimates for known claims based on the current facts and circumstances. These known claims are then “developed” through actuarial computations to reflect the expected ultimate loss for the known claims as well as incurred but not reported claims. Actuarial computations use the Company’s specific loss history, payment patterns and insurance coverage, plus industry trends and other factors to estimate the required reserve for all open claims by policy year and loss type. Reserves for the Company’s deductible are evaluated monthly. Semi-annually, the Company obtains a third-party actuarial report to validate that the computations and assumptions used are consistent with actuarial standards. Certain assumptions used in the actuarial computations are susceptible to change. Loss development factors are influenced by items such as medical inflation, changes in workers’ compensation laws and changes in the Company’s loss payment patterns, all of which can have a significant influence on the estimated ultimate loss related to the Company’s deductible. Accordingly, the ultimate resolution of open claims may be for amounts that differ from the reserve balances. The Company’s operations are spread across a significant number of locations, which helps to mitigate the potential impact of any given event that could give rise to an insurance-related loss. Over the last three years, business insurance expense has been approximately 0.5% of net sales.

Income Taxes

At March 31, 2015, the Company had deferred tax assets of $135 million (net of an immaterial valuation allowance), deferred tax liabilities of $932 million and $21 million of unrecognized income tax benefits associated with uncertain tax positions (see Note 5 to the consolidated financial statements).

The Company estimates income taxes based on diverse legislative and regulatory structures that exist in various jurisdictions where the Company conducts business. Deferred tax assets and liabilities are recognized for the future tax consequences attributable to differences between the financial statement carrying amounts of assets and liabilities and their respective tax bases, and operating loss carryforwards. The Company evaluates deferred tax assets each period to ensure that estimated future taxable income will be sufficient in character (e.g., capital gain versus ordinary income treatment), amount and timing to result in their recovery. Valuation allowances are recorded to reduce deferred tax assets when it is more likely than not that a tax benefit will not be realized. Considerable judgments are required in establishing deferred tax valuation allowances and in assessing exposures related to tax matters. The ultimate realization of deferred tax assets is dependent upon the generation of future taxable income during the periods in which those temporary differences and carryforward deferred tax assets become deductible or utilized. Management considers the reversal of taxable temporary differences and projected future taxable income in making this assessment. As events and circumstances change, related reserves and valuation allowances are adjusted to income at that time. Based upon the level of historical taxable income and projections for future taxable income over the periods during which the deferred tax assets reverse, at March 31, 2015, management believes it is more likely than not that the Company will realize the benefits of these deductible differences, net of the existing valuation allowances.

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Unrecognized income tax benefits represent income tax positions taken on income tax returns that have not been recognized in the consolidated financial statements. The Company recognizes the benefit of an income tax position only if it is more likely than not (greater than 50%) that the tax position will be sustained upon tax examination, based solely on the technical merits of the tax position. Otherwise, no benefit is recognized. The tax benefits recognized are measured based on the largest benefit that has a greater than 50% likelihood of being realized upon ultimate settlement. Additionally, the Company accrues interest and related penalties, if applicable, on all tax exposures for which reserves have been established consistent with jurisdictional tax laws. Interest and penalties are classified as income tax expense in the consolidated statements of earnings. The Company does not anticipate significant changes in the amount of unrecognized income tax benefits over the next year.

Contractual Obligations

The following table presents the Company’s contractual obligations as of March 31, 2015:

(In thousands)			Payments Due or Commitment Expiration by Period
Contractual Obligations (b)	Total		Less Than 1 Year (a)		1 to 3 Years (a)		4 to 5 Years (a)		More than 5 Years (a)
Long-term debt (1)	$	2,000,163	$	250,147	$	870,406	$	329,610	$	550,000
Estimated interest payments on long-term debt (2)	228,923		45,239		67,530		50,129		66,025
Non-compete agreements (3)	18,381		6,825		9,808		1,748		—
Letters of credit (4)	50,875		50,875		—		—		—
Operating leases (5)	408,620		104,273		163,848		88,317		52,182
Purchase obligations:
Liquid bulk gas supply agreements (6)	961,551		200,842		365,240		220,971		174,498
Liquid carbon dioxide supply agreements (7)	168,315		20,386		28,850		17,921		101,158
Construction commitments (8)	83,248		47,146		36,102		—		—
Other purchase commitments (9)	18,049		18,049		—		—		—
Total Contractual Obligations	$	3,938,125	$	743,782	$	1,541,784	$	708,696	$	943,863

____________________

^(a)  The “Less Than 1 Year” column relates to obligations due in the fiscal year ending March 31, 2016. The “1 to 3 Years” column relates to obligations due in fiscal years ending March 31, 2017 and 2018. The “4 to 5 Years” column relates to obligations due in fiscal years ending March 31, 2019 and 2020. The “More than 5 Years” column relates to obligations due beyond March 31, 2020.

^(b)  At March 31, 2015, the Company had $25 million related to unrecognized income tax benefits, including accrued interest and penalties. These liabilities are not included in the above table, as the Company cannot make reasonable estimates with respect to the timing of their ultimate resolution. See Note 5 to the Company’s consolidated financial statements under Item 8, “Financial Statements and Supplementary Data,” for further information on the Company’s unrecognized income tax benefits.

⁽¹⁾  Aggregate long-term debt instruments are reflected in the consolidated balance sheet as of March 31, 2015. The Senior Notes are presented at their maturity values rather than their carrying values, which are net of aggregate discounts of $1.4 million at March 31, 2015. Long-term debt includes capital lease obligations, which were not material and therefore, did not warrant separate disclosure.

⁽²⁾  The future interest payments on the Company’s long-term debt obligations were estimated based on the current outstanding principal reduced by scheduled maturities in each period presented and interest rates as of March 31, 2015. The actual interest payments may differ materially from those presented above based on actual amounts of long-term debt outstanding and actual interest rates in future periods.

⁽³⁾  Non-compete agreements are obligations of the Company to make scheduled future payments, generally to former owners of acquired businesses, contingent upon their compliance with the covenants of the non-compete agreements.

⁽⁴⁾  Letters of credit are guarantees of payment to third parties. The Company’s letters of credit principally back obligations associated with the Company’s deductible on workers’ compensation, business automobile and general liability claims. The letters of credit are supported by the Company’s Credit Facility.

⁽⁵⁾  The Company’s operating leases at March 31, 2015 include approximately $283 million in fleet vehicles under long-term operating leases. The Company guarantees a residual value of $29 million related to its leased vehicles.

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⁽⁶⁾  In addition to the gas volumes produced internally, the Company purchases industrial, medical and specialty gases pursuant to requirements under contracts from national and regional producers of industrial gases. The Company is a party to take-or-pay supply agreements under which Air Productswill supply the Company with bulk nitrogen, oxygen, argon, hydrogen and helium. The Company is committed to purchase a minimum of approximately$66 millionin bulk gases within the next fiscal year under the Air Products supply agreements. The agreements expire at various dates through2020. The Company also has take-or-pay supply agreements with Linde to purchase oxygen, nitrogen, argon and helium. The agreements expire at various dates through2025and represent approximately$99 million in minimum bulk gas purchases for the next fiscal year. Additionally, the Company has take-or-pay supply agreements to purchase oxygen, nitrogen, argon, helium and ammonia from other major producers. Minimum purchases under these contracts for the next fiscal year are approximately$36 millionand they expire at various dates through2024. The level of annual purchase commitments under the Company’s supply agreements beyond the next fiscal year vary based on the expiration of agreements at different dates in the future, among other factors.

The Company’s annual purchase commitments under all of its supply agreements reflect estimates based on fiscal2015purchases. The Company’s supply agreements contain periodic pricing adjustments, most of which are based on certain economic indices and market analyses. The Company believes the minimum product purchases under the agreements are within the Company’s normal product purchases. Actual purchases in future periods under the supply agreements could differ materially from those presented due to fluctuations in demand requirements related to varying sales levels as well as changes in economic conditions.

⁽⁷⁾  The Company is a party to take-or-pay supply agreements for the purchase of liquid carbon dioxide with twelvesuppliers that expire at various dates through2044and represent minimum purchases of approximately$20 millionfor the next fiscal year. The purchase commitments for future periods contained in the table above reflect estimates based on fiscal 2015 purchases. The Company believes the minimum product purchases under the agreements are within the Company’s normal product purchases. Actual purchases in future periods under the liquid carbon dioxide supply agreements could differ materially from those presented in the table due to fluctuations in demand requirements related to varying sales levels as well as changes in economic conditions. Certain of the liquid carbon dioxide supply agreements contain market pricing subject to certain economic indices.

⁽⁸⁾  Construction commitments represent long-term agreements with two customers to construct on-site air separation units. The units will be located in Calvert City, KY and Tuscaloosa, AL.

⁽⁹⁾  Other purchase commitments represent agreements to purchase property, plant and equipment.

Accounting Pronouncements Issued But Not Yet Adopted

See Note 2 to the Company’s consolidated financial statements under Item 8, “Financial Statements and Supplementary Data,” for information concerning new accounting guidance and the potential impact on the Company’s financial statements.

Forward-looking Statements

This report contains statements that are forward looking within the meaning of the Private Securities Litigation Reform Act of 1995. These statements include, but are not limited to, the Company’s expectations regarding its 2016 fiscal year organic sales growth and earnings per diluted share; the Company’s belief as to the future demand for, sales of, and increased pricing of its reclaimed and recycled R-22; the Company’s belief as to its enhanced ability to supply customers with helium; the Company’s belief that it will not be necessary to repatriate cash held outside of the U.S. by its foreign subsidiaries; the Company’s belief that it has sufficient liquidity from cash from operations and under its revolving credit facilities to meet its working capital, capital expenditure and other financial commitments; the Company’s belief that it can obtain financing on reasonable terms; the Company’s future dividend declarations; the Company’s estimate that for every 25 basis point increase in the Company’s average variable borrowing rates, the Company estimates that its annual interest expense would increase by approximately$1.7 million; the estimate of future interest payments on the Company’s long-term debt obligations; and the Company’s exposure to foreign currency exchange fluctuations.

Forward-looking statements also include any statement that is not based on historical fact, including statements containing the words “believes,” “may,” “plans,” “will,” “could,” “should,” “estimates,” “continues,” “anticipates,” “intends,” “expects,” and similar expressions. The Company intends that such forward-looking statements be subject to the safe harbors created thereby. All forward-looking statements are based on current expectations regarding important risk factors and should not be regarded as a representation by the Company or any other person that the results expressed therein will be achieved. Airgas assumes no obligation to revise or update any forward-looking statements for any reason, except as required by law. Important factors that could cause actual results to differ materially from those contained in any forward-looking statement include: the impact from the decline in oil prices on our customers; adverse changes in customer buying patterns or weakening in the operating and financial performance of the Company’s customers, any of which could negatively impact the Company’s sales and ability to collect its accounts receivable; postponement of projects due to economic conditions and uncertainty in the energy

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sector; the impact of the strong dollar on the Company’s manufacturer customers that export; customer acceptance of price increases; increases in energy costs and other operating expenses at a faster rate than the Company’s ability to increase prices; changes in customer demand resulting in the Company’s inability to meet minimum product purchase requirements under long-term supply agreements and the inability to negotiate alternative supply arrangements; supply cost pressures; shortages and/or disruptions in the supply chain of certain gases; the ability of the Company to pass on to its customers its increased costs of selling helium; EPA rulings and the impact in the marketplace of U.S. compliance with the Montreal Protocol as related to the production and import of Refrigerant-22 (also known as HCFC-22 or R-22); the Company’s ability to successfully build, complete in a timely manner and operate its new facilities; higher than expected expenses associated with the expansion of the Company’s telesales business, e-Business platform, the adjustment of its regional management structures, its strategic pricing initiatives and other strategic growth initiatives; increased industry competition; the Company’s ability to successfully identify, consummate, and integrate acquisitions; the Company’s ability to achieve anticipated acquisition synergies; operating costs associated with acquired businesses; the Company’s continued ability to access credit markets on satisfactory terms; significant fluctuations in interest rates; the impact of changes in credit market conditions on the Company’s customers; the Company’s ability to effectively leverage its SAP system to improve the operating and financial performance of its business; changes in tax and fiscal policies and laws; increased expenditures relating to compliance with environmental and other regulatory initiatives; the impact of new environmental, healthcare, tax, accounting, and other regulations; the overall U.S. industrial economy; catastrophic events and/or severe weather conditions; and political and economic uncertainties associated with current world events.

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ITEM 7A. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK.

Interest Rate Risk

The Company manages its exposure to changes in market interest rates through the occasional use of interest rate derivative instruments, when deemed appropriate. The interest rate exposure arises primarily from the interest payment terms of the Company’s borrowing agreements. Interest rate derivatives are used to adjust the interest rate risk exposures that are inherent in its portfolio of funding sources. The Company has not established, and will not establish, any interest rate risk positions for purposes other than managing the risk associated with its portfolio of funding sources or anticipated funding sources. The counterparties to interest rate derivatives are major financial institutions. The Company has established counterparty credit guidelines and only enters into transactions with financial institutions with long-term credit ratings of at least a single ‘A’ rating by one of the major credit rating agencies. In addition, the Company monitors its position and the credit ratings of its counterparties, thereby minimizing the risk of non-performance by the counterparties. The Company had no interest rate derivative instruments outstanding at March 31, 2015.

The following table summarizes the Company’s market risks associated with debt obligations at March 31, 2015. The table presents cash flows related to payments of principal and interest by fiscal year of maturity. Fair values were computed using market quotes, if available, or based on discounted cash flows using market interest rates as of the end of the period.

(In millions)	3/31/2016			3/31/2017			3/31/2018			3/31/2019			3/31/2020			Thereafter			Total		Fair Value
Fixed Rate Debt:
Senior notes due 10/1/2015	$	250.0		$	—		$	—		$	—		$	—		$	—		$	250.0	$	252.5
Interest expense	4.1			—			—			—			—			—			4.1
Interest rate	3.25		%	—			—			—			—			—
Senior notes due 6/15/2016	$	—		$	250.0		$	—		$	—		$	—		$	—		$	250.0	$	255.0
Interest expense	7.4			1.5			—			—			—			—			8.9
Interest rate	2.95		%	2.95		%	—			—			—			—
Senior notes due 2/15/2018	$	—		$	—		$	325.0		$	—		$	—		$	—		$	325.0	$	323.9
Interest expense	5.4			5.4			4.7			—			—			—			15.5
Interest rate	1.65		%	1.65		%	1.65		%	—			—			—
Senior notes due 2/15/2020	$	—		$	—		$	—		$	—		$	275.0		$	—		$	275.0	$	274.8
Interest expense	6.5			6.5			6.5			6.5			5.7			—			31.7
Interest rate	2.38		%	2.38		%	2.38		%	2.38		%	2.38		%	—
Senior notes due 11/15/2022	$	—		$	—		$	—		$	—		$	—		$	250.0		$	250.0	$	249.0
Interest expense	7.3			7.3			7.3			7.3			7.3			19.0			55.5
Interest rate	2.90		%	2.90		%	2.90		%	2.90		%	2.90		%	2.90		%
Senior notes due 7/15/2024	$	—		$	—		$	—		$	—		$	—		$	300.0		$	300.0	$	310.5
Interest expense	$	11.0		$	11.0		$	11.0		$	11.0		$	11.0		$	47.0		$	102.0
Interest rate	3.65		%	3.65		%	3.65		%	3.65		%	3.65		%	3.65		%

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(In millions)	3/31/2016			3/31/2017			3/31/2018			3/31/2019			3/31/2020			Thereafter		Total		Fair Value
Variable Rate Debt:
Commercial paper	$	325.9		$	—		$	—		$	—		$	—		$	—	$	325.9	$	325.9
Interest expense	0.1			—			—			—			—			—		0.1
Interest rate	0.57		%	—			—			—			—			—
Revolving credit borrowings - Multi-currency	$	—		$	—		$	—		$	—		$	48.3		$	—	$	48.3	$	48.3
Interest expense	0.8			0.8			0.8			0.8			0.5			—		3.7
Interest rate (a)	1.69		%	1.69		%	1.69		%	1.69		%	1.69		%	—
Revolving credit borrowings - France	$	—		$	—		$	—		$	—		$	6.3		$	—	$	6.3	$	6.3
Interest expense	0.1			0.1			0.1			0.1			0.1			—		0.5
Interest rate (b)	1.24		%	1.24		%	1.24		%	1.24		%	1.24		%	—
Trade receivables securitization	$	—		$	—		$	295.0		$	—		$	—		$	—	$	295.0	$	295.0
Interest expense	2.8			2.8			1.9			—			—			—		7.5
Interest rate	0.92		%	0.92		%	0.92		%	—			—			—

____________________

^(a)  The interest rate on the revolving credit facilities is the weighted average of the variable interest rates on the multi-currency revolving credit line. The variable interest rates on the multi-currency revolving credit line are based on a spread over the Euro currency rate applicable to each foreign currency borrowing under the multi-currency credit line.

^(b)  The variable interest rates on the French revolving credit borrowings are based on a spread over the Euro currency rate.

Limitations of the Tabular Presentation

As the table incorporates only those interest rate risk exposures that exist as of March 31, 2015, it does not consider those exposures or positions that could arise after that date. In addition, actual cash flows of financial instruments in future periods may differ materially from prospective cash flows presented in the table due to future fluctuations in variable interest rates, debt levels and the Company’s credit rating.

Foreign Currency Rate Risk

Canadian subsidiaries and the European operations of the Company are funded in part with local currency debt. The Company does not otherwise hedge its exposure to translation gains and losses relating to foreign currency net asset exposures. The Company considers its exposure to foreign currency exchange fluctuations to be immaterial to its financial position and results of operations.

ITEM 8. FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA.

The consolidated financial statements, supplementary information and financial statement schedule of the Company are set forth at pages F-1 to F-41 of this report.

ITEM 9. CHANGES IN AND DISAGREEMENTS WITH ACCOUNTANTS ON ACCOUNTING AND FINANCIAL DISCLOSURE.

None.

ITEM 9A. CONTROLS AND PROCEDURES.

(a) Evaluation of Disclosure Controls and Procedures

The Company carried out an evaluation, under the supervision and with the participation of the Company’s Executive Chairman of the Board, Chief Executive Officer and Chief Financial Officer, of the effectiveness of the Company’s “disclosure controls and procedures” (as defined in the Securities Exchange Act of 1934 Rules 13a-15(e) and 15d-15(e)) as of March 31, 2015. Based on that evaluation, the Company’s Executive Chairman of the Board, Chief Executive Officer and Chief Financial Officer have concluded that, as of such date, the Company’s disclosure controls and procedures were effective to provide reasonable assurance that the information required to be disclosed in the Company’s SEC reports is (i) recorded, processed, summarized and reported within the time periods specified in the SEC rules and forms, and (ii) accumulated and communicated

41

to the Company’s management, including the Company’s Executive Chairman of the Board, Chief Executive Officer and Chief Financial Officer, as appropriate to allow timely decisions regarding disclosure.

(b) Management’s Report on Internal Control over Financial Reporting

The Company’s management is responsible for establishing and maintaining an adequate system of internal control over financial reporting, as defined in Exchange Act Rule 13a-15(f). The Company’s management conducted an assessment of the Company’s internal control over financial reporting based on the framework established by the Committee of Sponsoring Organizations of the Treadway Commission in Internal Control - Integrated Framework (2013). Based on this assessment, management concluded that, as of March 31, 2015, the Company’s internal control over financial reporting was effective. See Management’s Report on Internal Control Over Financial Reporting preceding the consolidated financial statements under Item 8, “Financial Statements and Supplementary Data.”

KPMG LLP, an independent registered public accounting firm, issued an audit report on the effectiveness of the Company’s internal control over financial reporting as of March 31, 2015, included under Item 8, “Financial Statements and Supplementary Data.”

(c) Changes in Internal Control

There were no changes in the Company’s internal control over financial reporting that occurred during the quarter ended March 31, 2015 that have materially affected, or are reasonably likely to materially affect, the Company’s internal control over financial reporting.

ITEM 9B. OTHER INFORMATION.

None.

PART III

ITEM 10. DIRECTORS, EXECUTIVE OFFICERS AND CORPORATE GOVERNANCE.

Certain information from the Company’s 2015 Definitive Proxy Statement (“Proxy Statement”) (when it is filed) is incorporated by reference as specified by the Item number of Regulation S-K below.

Item 401 Information

The biographical information for the directors including the names, ages, terms of office, directorships in other companies and business experience is included in the Proxy Statement section “Election of Directors” and is incorporated herein by reference. The biographical information relating to the Company’s executive officers set forth in Item 1 of Part I of this Form 10-K report is incorporated herein by reference.

Item 405 Information

Disclosure of the failure by any director, officer or beneficial owner of more than ten percent of a class of the Company’s equity securities to file Forms 3, 4 or 5 reporting their ownership and changes in ownership in the Company is included in the Proxy Statement section “Section 16(a) Reporting Compliance” and is incorporated herein by reference.

Item 406 Information

Disclosure of the Company’s adoption of a code of ethics and the employees to which it applies is included in the Proxy Statement section “Governance of the Company” under subsection “Charters and Code of Ethics and Business Conduct” and is incorporated herein by reference.

Item 407(c)(3) Information

The procedure followed to nominate persons to the Company’s Board of Directors is included in the Proxy Statement section “Governance of the Company” under subsection “Director Nomination Process” and is incorporated herein by reference.

Items 407(d)(4) and 407(d)(5) Information

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The identification of each audit committee member, their independence with regard to the Company, and the Company’s audit committee financial experts are contained in the Proxy Statement section “Election of Directors” under subsection “Audit Committee” and is incorporated herein by reference.

ITEM 11. EXECUTIVE COMPENSATION.

The information required by Items 402, 407(e)(4) and 407(e)(5) of Regulation S-K is included in the Proxy Statement sections “Compensation Discussion and Analysis,” “Report of the Governance and Compensation Committee,” “Executive Compensation” and “Compensation of Directors.” The information in these sections is incorporated herein by reference, provided that the Report of the Governance and Compensation Committee will be deemed to be furnished and will not be deemed incorporated by reference into any other filing under the Securities Act of 1933, as amended, or the Securities Exchange Act of 1934, as amended.

ITEM 12. SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND MANAGEMENT AND RELATED STOCKHOLDER MATTERS.

Item 201(d) Information

The information required by Item 201(d) of Regulation S-K regarding the number of securities issuable under equity compensation plans is set forth in the Proxy Statement section “Equity Compensation Plan Information” and is incorporated herein by reference.

Item 403 Information

The information required by Item 403 of Regulation S-K regarding the disclosure of the amount of the Company’s voting securities beneficially owned by each director individually, by all directors and officers as a group, and by any owner of 5% or more of the securities is set forth in the Proxy Statement section “Security Ownership” and is incorporated herein by reference.

ITEM 13. CERTAIN RELATIONSHIPS AND RELATED TRANSACTIONS, AND DIRECTOR INDEPENDENCE.

Information required by Item 404 of Regulation S-K regarding material transactions and relationships between the Company and the Company’s directors, executive officers, nominees for election as directors, major stockholders and business and professional entities affiliated with them is included in the Proxy Statement sections “Governance of the Company” and “Certain Relationships and Related Transactions,” and is incorporated herein by reference. The information required by Item 407(a) of Regulation S-K regarding the disclosure of the independence of directors and committee members is also included in the Proxy Statement section “Governance of the Company” and is incorporated herein by reference.

ITEM 14. PRINCIPAL ACCOUNTANT FEES AND SERVICES.

The information required by this Item is set forth in the Proxy Statement under the section “Proposal to Ratify Independent Registered Public Accounting Firm” and is incorporated herein by reference.

PART IV

ITEM 15. EXHIBITS AND FINANCIAL STATEMENT SCHEDULES.

(a) The following documents are filed as part of this report:

(1) and (2) The response to this portion of Item 15 is submitted as a separate section of this report beginning on page F-1. All other schedules have been omitted as inapplicable or are not required, or because the required information is included in the consolidated financial statements or accompanying notes.

(3) The exhibits filed as part of this report are listed in the accompanying index.

Exhibit No.	Description
3.1	Amended and Restated Certificate of Incorporation of Airgas, Inc., amended through May 8, 2007. (Incorporated by reference to Exhibit 3.1 to the Company’s March 31, 2012 Annual Report on Form 10-K.)
3.2	Airgas, Inc. By-Laws, amended through April 8, 2014. (Incorporated by reference to Exhibit 3.1 to the Company’s April 11, 2014 Current Report on Form 8-K.)

4.1	Rights Agreement, dated May 8, 2007, between Airgas, Inc. and The Bank of New York, as Rights Agent, which includes as Exhibits thereto the Form of Certificate of Designation, the Form of Right Certificate and the Summary of Rights attached thereto as Exhibits A, B and C, respectively. (Incorporated by reference to Exhibit 4.1 to the Company’s May 10, 2007 Current Report on Form 8-K.)
4.2	Indenture dated May 27, 2010, between Airgas, Inc. and U.S. Bank National Association, as Trustee. (Incorporated by reference to Exhibit 4 to the Company’s Registration Statement on Form S-3 No. 333-167140.)
4.3	First Supplemental Indenture dated September 30, 2010 to the Indenture dated May 27, 2010, between Airgas, Inc. and U.S. Bank National Association, as Trustee, related to the 3.25% Senior Notes due 2015. (Incorporated by reference to Exhibit 4.2 to the Company’s September 30, 2010 Current Report on Form 8-K.)
4.4	Second Supplemental Indenture dated June 3, 2011 to the Indenture dated May 27, 2010, between Airgas, Inc. and U.S. Bank National Association, as Trustee, related to the 2.95% Senior Notes due 2016. (Incorporated by reference to Exhibit 4.2 to the Company’s June 3, 2011 Current Report on Form 8-K.)
4.5	Third Supplemental Indenture dated November 26, 2012 to the Indenture dated May 27, 2010, between Airgas, Inc. and U.S. Bank National Association, as Trustee, related to the 2.90% Senior Notes due 2022. (Incorporated by reference to Exhibit 4.2 to the Company’s November 26, 2012 Current Report on Form 8-K.)
4.6	Fourth Supplemental Indenture dated February 14, 2013 to the Indenture dated May 27, 2010, between Airgas, Inc. and U.S. Bank National Association, as Trustee, related to the 1.65% Senior Notes due 2018 and the 2.375% Senior Notes due 2020. (Incorporated by reference to Exhibit 4.2 to the Company’s February 14, 2013 Current Report on Form 8-K.)
4.7	Fifth Supplemental Indenture dated June 17, 2014 to the Indenture dated May 27, 2010, between Airgas, Inc. and U.S. Bank National Association, as Trustee, related to the 3.65% Senior Notes due 2024. (Incorporated by reference to Exhibit 4.2 to the Company’s June 17, 2014 Current Report on Form 8-K.)
4.8	Second Amended and Restated Credit Agreement, dated as of November 18, 2014, among Airgas, Inc., the subsidiary borrowers referred to therein, Bank of America, N.A. as administrative agent and the lenders party thereto. (Incorporated by reference to Exhibit 10.1 to the Company’s November 20, 2014 Current Report on Form 8-K.)
	There are no other instruments with respect to long-term debt of the Company that involve indebtedness or securities exceeding ten percent of the total assets of the Company and its subsidiaries on a consolidated basis. The Company agrees to file a copy of any instrument or agreement defining the rights of holders of long-term debt of the Company upon request of the Securities and Exchange Commission.
*10.1	1997 Stock Option Plan, as amended through May 7, 2002, and approved by the Company’s stockholders on July 31, 2002. (Incorporated by reference to Exhibit 10.1 to the Company’s June 30, 2002 Quarterly Report on Form 10-Q.)
*10.2	1997 Directors’ Stock Option Plan, as amended through August 4, 2004. (Incorporated by reference to Exhibit 4 to the Company’s Registration Statement on Form S-8 No. 333-117965 dated August 5, 2004.)
*10.3	Airgas, Inc. Deferred Compensation Plan dated December 17, 2001. (Incorporated by reference to Exhibit 4 to the Company’s Registration Statement on Form S-8 No. 333-75258 dated December 17, 2001.)
*10.4	Airgas, Inc. Deferred Compensation Plan II dated May 23, 2006. (Incorporated by reference to Exhibit 4 to the Company’s Registration Statement on Form S-8 No. 333-136463 dated August 9, 2006.)
*10.5	Airgas, Inc. Executive Bonus Plan. (Incorporated by reference to Exhibit 10.1 to the Company’s August 7, 2013 Current Report on Form 8-K.)
*10.6	Amended and Restated Change of Control Agreement between Airgas, Inc. and Michael L. Molinini dated December 31, 2008. (Incorporated by reference to Exhibit 10.1 to the Company’s January 7, 2009 Current Report on Form 8-K.) Eight other executive officers and two additional associates are parties to substantially identical agreements in all material respects.
*10.7	Amended and Restated Executive Severance Agreement between Airgas, Inc. and Peter McCausland dated May 29, 2009. (Incorporated by reference to Exhibit 10.12 to the Company’s March 31, 2009 Annual Report on Form 10-K.)
*10.8	First Amendment to Amended and Restated Executive Severance Agreement between Airgas, Inc. and Peter McCausland dated June 27, 2013. (Incorporated by reference to Exhibit 10.1 to the Company’s June 30, 2013 Quarterly Report on Form 10-Q.)

43

*10.9	Airgas, Inc. Second Amended and Restated 2006 Equity Incentive Plan dated July 2, 2012, and approved by the Company’s stockholders on August 14, 2012. (Incorporated by reference to Exhibit 10.1 to the Company’s August 15, 2012 Current Report on Form 8-K.)
*10.10	Amended and Restated 2003 Employee Stock Purchase Plan dated June 18, 2010, and approved by the Company’s stockholders on September 15, 2010. (Incorporated by reference to Exhibit 99.1 to the Company’s September 21, 2010 Current Report on Form 8-K.)
*10.11	First Amendment to the Amended and Restated 2003 Employee Stock Purchase Plan dated January 29, 2013. (Incorporated by reference to Exhibit 10.11 to the Company’s March 31, 2014 Annual Report on Form 10-K.)
10.12	Third Amended and Restated Receivables Purchase Agreement, dated as of March 17, 2010, among Airgas, Inc., as Servicer, Radnor Funding Corp., as Seller, the members of the various purchaser groups from time to time party thereto and the Administrator. (Incorporated by reference to Exhibit 10.1 to the Company’s March 22, 2011 Current Report on Form 8-K.)
10.13	First Amendment to the Third Amended and Restated Receivables Purchase Agreement, dated as of March 16, 2011, among Airgas, Inc., as Servicer, Radnor Funding Corp., as Seller, the members of the various purchaser groups from time to time party thereto and the Administrator. (Incorporated by reference to Exhibit 10.2 to the Company’s March 22, 2011 Current Report on Form 8-K.)
10.14	Second Amendment to the Third Amended and Restated Receivables Purchase Agreement, dated as of December 21, 2011, among Airgas, Inc., as Servicer, Radnor Funding Corp., as Seller, the members of the various purchaser groups from time to time party thereto and the Administrator. (Incorporated by reference to Exhibit 10.1 to the Company’s December 22, 2011 Current Report on Form 8-K.)
10.15	Third Amendment to the Third Amended and Restated Receivables Purchase Agreement, dated as of December 5, 2012, among Airgas, Inc., as Servicer, Radnor Funding Corp., as Seller, the members of the various purchaser groups from time to time party thereto and the Administrator. (Incorporated by reference to Exhibit 10.1 to the Company’s December 6, 2012 Current Report on Form 8-K.)
10.16	Fourth Amendment to the Third Amended and Restated Receivables Purchase Agreement, dated as of December 5, 2013, among Airgas, Inc., as Servicer, Radnor Funding Corp., as Seller, the members of the various purchaser groups from time to time party thereto and the Administrator. (Incorporated by reference to Exhibit 10.1 to the Company’s December 9, 2013 Current Report on Form 8-K.)
10.17	Fifth Amendment to the Third Amended and Restated Receivables Purchase Agreement, dated as of December 5, 2014, among Airgas, Inc., as Servicer, Radnor Funding Corp., as Seller, the members of the various purchaser groups from time to time party thereto and the Administrator. (Incorporated by reference to Exhibit 10.1 to the Company’s December 5, 2014 Current Report on Form 8-K.)
12	Computation of the Ratio of Earnings to Fixed Charges.
21	Subsidiaries of the Company.
23	Consent of Independent Registered Public Accounting Firm.
31.1	Certification of Peter McCausland as Executive Chairman of Airgas, Inc. pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.
31.2	Certification of Michael L. Molinini as President and Chief Executive Officer of Airgas, Inc. pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.
31.3	Certification of Robert M. McLaughlin as Senior Vice President and Chief Financial Officer of Airgas, Inc. pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.
32.1	Certification of Peter McCausland as Executive Chairman of Airgas, Inc. pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.
32.2	Certification of Michael L. Molinini as President and Chief Executive Officer of Airgas, Inc. pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.
32.3	Certification of Robert M. McLaughlin as Senior Vice President and Chief Financial Officer of Airgas, Inc. pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.
101.INS	XBRL Instance Document.
101.SCH	XBRL Taxonomy Extension Schema Document.
101.CAL	XBRL Taxonomy Extension Calculation Linkbase Document.

44

101.DEF	XBRL Taxonomy Definition Linkbase Document.
101.LAB	XBRL Taxonomy Extension Label Linkbase Document.
101.PRE	XBRL Taxonomy Extension Presentation Linkbase Document.

____________________

* Indicates a management contract or compensatory plan.

45

SIGNATURES

Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

Date: May 27, 2015

Airgas, Inc.
(Registrant)
By:	/S/    PETER McCAUSLAND
	Peter McCausland
	Executive Chairman

By:	/S/    MICHAEL L. MOLININI
	Michael L. Molinini
	President and Chief Executive Officer

46

Pursuant to the requirements of the Securities Exchange Act of 1934, this report has been signed below by the following persons on behalf of the registrant and in the capacities and on the dates indicated.

Signature	Title	Date
/S/    PETER McCAUSLAND (Peter McCausland)	Executive Chairman (Co-Principal Executive Officer)	May 27, 2015
/S/ MICHAEL L. MOLININI (Michael L. Molinini)	Director, President and Chief Executive Officer (Co-Principal Executive Officer)	May 27, 2015
/S/ ROBERT M. McLAUGHLIN (Robert M. McLaughlin)	Senior Vice President and Chief Financial Officer (Principal Financial Officer)	May 27, 2015
/S/ THOMAS M. SMYTH (Thomas M. Smyth)	Vice President and Controller (Principal Accounting Officer)	May 27, 2015
/S/ JOHN P. CLANCEY (John P. Clancey)	Director	May 27, 2015
/S/ JAMES W. HOVEY (James W. Hovey)	Director	May 27, 2015
/S/ RICHARD C. ILL (Richard C. Ill)	Director	May 27, 2015
/S/ TED B. MILLER, JR. (Ted B. Miller, Jr.)	Director	May 27, 2015
/S/ PAULA A. SNEED (Paula A. Sneed)	Director	May 27, 2015
/S/ DAVID M. STOUT (David M. Stout)	Director	May 27, 2015
/S/ LEE M. THOMAS (Lee M. Thomas)	Director	May 27, 2015
/S/ JOHN C. VAN RODEN, JR. (John C. van Roden, Jr.)	Director	May 27, 2015
/S/ ELLEN C. WOLF  (Ellen C. Wolf)	Director	May 27, 2015

47

AIRGAS, INC. AND SUBSIDIARIES

INDEX TO CONSOLIDATED FINANCIAL STATEMENTS

AND FINANCIAL STATEMENT SCHEDULE

	Page Reference In Annual Report On Form 10-K
Financial Statements:
Statement of Management's Financial Responsibility	F-1
Management's Report on Internal Control Over Financial Reporting	F-2
Report of Independent Registered Public Accounting Firm	F-3
Consolidated Statements of Earnings for the Years Ended March 31, 2015, 2014 and 2013	F-4
Consolidated Statements of Comprehensive Income for the Years Ended March 31, 2015, 2014 and 2013	F-5
Consolidated Balance Sheets as of March 31, 2015 and 2014	F-6
Consolidated Statements of Stockholders' Equity for the Years Ended March 31, 2015, 2014 and 2013	F-7
Consolidated Statements of Cash Flows for the Years Ended March 31, 2015, 2014 and 2013	F-9
Notes to Consolidated Financial Statements	F-10
Financial Statement Schedule:
Schedule II - Valuation and Qualifying Accounts	F-41

All other schedules for which provision is made in the applicable accounting regulations promulgated by the Securities and Exchange Commission are not required under the related instructions or are inapplicable and therefore have been omitted.

STATEMENT OF MANAGEMENT’S FINANCIAL RESPONSIBILITY

Management of Airgas, Inc. and subsidiaries (the “Company”) prepared and is responsible for the consolidated financial statements and related financial information in this Annual Report on Form 10-K. The consolidated financial statements are prepared in conformity with U.S. generally accepted accounting principles. The consolidated financial statements reflect management’s informed judgment and estimation as to the effect of events and transactions that are accounted for or disclosed.

Management maintains a system of internal control, which includes internal control over financial reporting, at each business unit. The Company’s system of internal control is designed to provide reasonable assurance that records are maintained in reasonable detail to properly reflect transactions and permit the preparation of financial statements in accordance with U.S. generally accepted accounting principles, that transactions are executed in accordance with management’s and the Board of Directors’ authorization, and that unauthorized transactions are prevented or detected on a timely basis such that they could not materially affect the financial statements. The Company also maintains a staff of internal auditors who review and evaluate the system of internal control on a continual basis. In determining the extent of the system of internal control, management recognizes that the cost should not exceed the benefits derived. The evaluation of these factors requires judgment by management.

Management evaluated the effectiveness of the Company’s internal control over financial reporting as of March 31, 2015, based on criteria established in Internal Control - Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission. KPMG LLP, an independent registered public accounting firm, as stated in their report appearing on page F-3, issued their opinion on the effectiveness of the Company’s internal control over financial reporting as of March 31, 2015 and an opinion on the fair presentation of the financial position of the Company as of March 31, 2015 and 2014, and the results of the Company’s operations and cash flows for each of the years in the three-year period ended March 31, 2015.

The Audit Committee of the Board of Directors, consisting solely of independent directors, meets regularly (jointly and separately) with the independent registered public accounting firm, the internal auditors and management to satisfy itself that they are properly discharging their responsibilities. The independent registered public accounting firm has direct access to the Audit Committee.

Airgas, Inc.	Airgas, Inc.	Airgas, Inc.
/s/    PETER McCAUSLAND	/s/    MICHAEL L. MOLININI	/S/    ROBERT M. MCLAUGHLIN
Peter McCausland Executive Chairman	Michael L. Molinini President and Chief Executive Officer	Robert M. McLaughlin Senior Vice President and Chief Financial Officer

May 27, 2015

F-1

MANAGEMENT’S REPORT ON INTERNAL CONTROL OVER FINANCIAL REPORTING

Management of Airgas, Inc. and subsidiaries (the “Company”) is responsible for establishing and maintaining an adequate system of internal control over financial reporting. Under the supervision and with the participation of the Company’s Executive Chairman of the Board, Chief Executive Officer and Chief Financial Officer, management conducted an assessment of the Company’s internal control over financial reporting based on the framework established by the Committee of Sponsoring Organizations of the Treadway Commission in Internal Control - Integrated Framework (2013). Based on this assessment, management concluded that, as of March 31, 2015, the Company’s internal control over financial reporting was effective. KPMG LLP, an independent registered public accounting firm, has issued an audit report on the effectiveness of the Company’s internal control over financial reporting as of March 31, 2015.

Airgas, Inc.	Airgas, Inc.	Airgas, Inc.
/s/    PETER McCAUSLAND	/s/    MICHAEL L. MOLININI	/S/    ROBERT M. MCLAUGHLIN
Peter McCausland Executive Chairman	Michael L. Molinini President and Chief Executive Officer	Robert M. McLaughlin Senior Vice President and Chief Financial Officer

May 27, 2015

F-2

Report of Independent Registered Public Accounting Firm

The Board of Directors and Stockholders

Airgas, Inc.:

We have audited the accompanying consolidated financial statements of Airgas, Inc. and subsidiaries as listed in the Index to Consolidated Financial Statements and Financial Statement Schedule (Accompanying Index). In connection with our audits of the consolidated financial statements, we also have audited the financial statement schedule as listed in the Accompanying Index. We also have audited Airgas, Inc.’s internal control over financial reporting as of March 31, 2015, based on criteria established in Internal Control - Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission (COSO). Airgas, Inc.’s management is responsible for these consolidated financial statements and financial statement schedule, for maintaining effective internal control over financial reporting, and for its assessment of the effectiveness of internal control over financial reporting, included in the accompanying Management’s Report on Internal Control Over Financial Reporting. Our responsibility is to express an opinion on these consolidated financial statements and financial statement schedule and an opinion on the Company’s internal control over financial reporting based on our audits.

We conducted our audits in accordance with the standards of the Public Company Accounting Oversight Board (United States). Those standards require that we plan and perform the audits to obtain reasonable assurance about whether the financial statements are free of material misstatement and whether effective internal control over financial reporting was maintained in all material respects. Our audits of the consolidated financial statements included examining, on a test basis, evidence supporting the amounts and disclosures in the financial statements, assessing the accounting principles used and significant estimates made by management, and evaluating the overall financial statement presentation. Our audit of internal control over financial reporting included obtaining an understanding of internal control over financial reporting, assessing the risk that a material weakness exists, and testing and evaluating the design and operating effectiveness of internal control based on the assessed risk. Our audits also included performing such other procedures as we considered necessary in the circumstances. We believe that our audits provide a reasonable basis for our opinions.

A company’s internal control over financial reporting is a process designed to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles. A company’s internal control over financial reporting includes those policies and procedures that (1) pertain to the maintenance of records that, in reasonable detail, accurately and fairly reflect the transactions and dispositions of the assets of the company; (2) provide reasonable assurance that transactions are recorded as necessary to permit preparation of financial statements in accordance with generally accepted accounting principles, and that receipts and expenditures of the company are being made only in accordance with authorizations of management and directors of the company; and (3) provide reasonable assurance regarding prevention or timely detection of unauthorized acquisition, use, or disposition of the company’s assets that could have a material effect on the financial statements.

Because of its inherent limitations, internal control over financial reporting may not prevent or detect misstatements. Also, projections of any evaluation of effectiveness to future periods are subject to the risk that controls may become inadequate because of changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate.

In our opinion, the consolidated financial statements referred to above present fairly, in all material respects, the financial position of Airgas, Inc. and subsidiaries as of March 31, 2015 and 2014, and the results of their operations and their cash flows for each of the years in the three-year period ended March 31, 2015, in conformity with U.S. generally accepted accounting principles. Also in our opinion, the related financial statement schedule, when considered in relation to the basic consolidated financial statements taken as a whole, presents fairly, in all material respects, the information set forth therein. Also in our opinion, Airgas, Inc. maintained, in all material respects, effective internal control over financial reporting as of March 31, 2015, based on criteria established in Internal Control - Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission.

/s/ KPMG LLP

Philadelphia, Pennsylvania

May 27, 2015

F-3

AIRGAS, INC. AND SUBSIDIARIES

CONSOLIDATED STATEMENTS OF EARNINGS

	Years Ended March 31,
(In thousands, except per share amounts)	2015			2014			2013
Net Sales	$	5,304,885		$	5,072,537		$	4,957,497
Costs and Expenses:
Cost of products sold (excluding depreciation)	2,355,875			2,247,574			2,235,567
Selling, distribution and administrative expenses	1,978,674			1,889,123			1,828,524
Restructuring and other special charges, net (Note 22)	—			—			8,089
Depreciation	297,710			275,461			261,622
Amortization (Note 7)	31,348			29,845			27,278
Total costs and expenses	4,663,607			4,442,003			4,361,080
Operating Income	641,278			630,534			596,417
Interest expense, net (Note 14)	(62,232		)	(73,698		)	(67,494		)
Loss on the extinguishment of debt (Note 9)	—			(9,150		)	—
Other income, net	5,075			4,219			14,494
Earnings before income taxes	584,121			551,905			543,417
Income taxes (Note 5)	(216,035		)	(201,121		)	(202,543		)
Net Earnings	$	368,086		$	350,784		$	340,874
Net Earnings Per Common Share (Note 15):
Basic earnings per share	$	4.93		$	4.76		$	4.45
Diluted earnings per share	$	4.85		$	4.68		$	4.35
Weighted Average Shares Outstanding:
Basic	74,702			73,623			76,651
Diluted	75,851			74,910			78,307

See accompanying notes to consolidated financial statements.

F-4

AIRGAS, INC. AND SUBSIDIARIES

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME

	Years Ended March 31,
(In thousands)	2015			2014			2013
Net earnings	$	368,086		$	350,784		$	340,874
Other comprehensive income (loss), before tax:
Foreign currency translation adjustments	(15,708		)	(4,235		)	(1,274		)
Reclassification of hedging loss included in net earnings (Note 10)	517			517			517
Other comprehensive income (loss), before tax	(15,191		)	(3,718		)	(757		)
Net tax expense of other comprehensive income items	(191		)	(191		)	(191		)
Other comprehensive income (loss), net of tax	(15,382		)	(3,909		)	(948		)
Comprehensive income	$	352,704		$	346,875		$	339,926

See accompanying notes to consolidated financial statements.

F-5

AIRGAS, INC. AND SUBSIDIARIES

CONSOLIDATED BALANCE SHEETS

(In thousands, except per share amounts)	March 31, 2015			March 31, 2014
ASSETS
Current Assets
Cash	$	50,724		$	69,561
Trade receivables, less allowances for doubtful accounts of $27,016 and $31,757 at March 31, 2015 and 2014, respectively	708,227			701,060
Inventories, net (Note 4)	474,070			478,149
Deferred income tax asset, net (Note 5)	58,072			57,961
Prepaid expenses and other current assets	124,591			92,356
Total current assets	1,415,684			1,399,087
Plant and equipment at cost (Note 6)	5,305,059			4,931,064
Less accumulated depreciation	(2,353,293		)	(2,128,649		)
Plant and equipment, net	2,951,766			2,802,415
Goodwill (Note 7)	1,313,644			1,289,896
Other intangible assets, net (Note 7)	244,519			258,836
Other non-current assets	47,997			43,080
Total assets	$	5,973,610		$	5,793,314
LIABILITIES AND STOCKHOLDERS’ EQUITY
Current Liabilities
Accounts payable, trade	$	206,187		$	196,911
Accrued expenses and other current liabilities (Note 8)	346,879			345,676
Short-term debt (Note 9)	325,871			387,866
Current portion of long-term debt (Note 9)	250,110			400,322
Total current liabilities	1,129,047			1,330,775
Long-term debt, excluding current portion (Note 9)	1,748,662			1,706,774
Deferred income tax liability, net (Note 5)	854,574			825,897
Other non-current liabilities	89,741			89,219
Commitments and contingencies (Notes 16 and 17)
Stockholders’ Equity (Note 12)
Preferred stock, 20,030 shares authorized, no shares issued or outstanding at March 31, 2015 and 2014	—			—
Common stock, par value $0.01 per share, 200,000 shares authorized, 87,554 and 87,353 shares issued at March 31, 2015 and 2014, respectively	876			874
Capital in excess of par value	853,800			789,789
Retained earnings	2,231,026			2,047,843
Accumulated other comprehensive income	(14,853		)	529
Treasury stock, 12,197 and 13,264 shares at cost at March 31, 2015 and 2014, respectively	(919,263		)	(998,386		)
Total stockholders’ equity	2,151,586			1,840,649
Total liabilities and stockholders’ equity	$	5,973,610		$	5,793,314

See accompanying notes to consolidated financial statements.

F-6

AIRGAS, INC. AND SUBSIDIARIES

CONSOLIDATED STATEMENTS OF STOCKHOLDERS’ EQUITY

Years Ended March 31, 2015, 2014 and 2013
(In thousands, except per share amounts)	Shares of Common Stock	Common Stock		Capital in Excess of Par Value		Retained Earnings			Accumulated Other Comprehensive Income (Loss)			Shares of Treasury Stock		Treasury Stock			Total Stockholders’ Equity
Balance - April 1, 2012	86,874	$	869	$	649,551	$	1,701,478		$	5,386		(10,207)		$	(607,026	)	$	1,750,258
Net earnings						340,874											340,874
Foreign currency translation adjustments									(1,274		)						(1,274		)
Reclassification of hedging loss included in net earnings (Note 10)									517								517
Net tax expense of other comprehensive income items									(191		)						(191		)
Treasury stock reissuances in connection with stock options exercised (Note 13)				—		(58,755		)				2,421		147,455			88,700
Dividends paid on common stock ($1.60 per share) (Note 12)						(122,202		)									(122,202		)
Excess tax benefit associated with the exercise of stock options				36,160													36,160
Shares issued in connection with the Employee Stock Purchase Plan (Note 13)	261	2		17,086													17,088
Stock-based compensation expense (Note 13)				27,053													27,053
Purchase of treasury stock (Note 12)												(6,291)		(600,000		)	(600,000		)
Balance - March 31, 2013	87,135	$	871	$	729,850	$	1,861,395		$	4,438		(14,077)		$	(1,059,571	)	$	1,536,983
Net earnings						350,784											350,784
Foreign currency translation adjustments									(4,235		)						(4,235		)
Reclassification of hedging loss included in net earnings (Note 10)									517								517
Net tax expense of other comprehensive income items									(191		)						(191		)
Treasury stock reissuances in connection with stock options exercised (Note 13)				—		(22,875		)				813		61,185			38,310
Dividends paid on common stock ($1.92 per share) (Note 12)						(141,461		)									(141,461		)
Excess tax benefit associated with the exercise of stock options				13,668													13,668
Shares issued in connection with the Employee Stock Purchase Plan (Note 13)	218	3		17,310													17,313
Stock-based compensation expense (Note 13)				28,961													28,961
Balance - March 31, 2014	87,353	$	874	$	789,789	$	2,047,843		$	529		(13,264	)	$	(998,386	)	$	1,840,649

F-7

AIRGAS, INC. AND SUBSIDIARIES CONSOLIDATED STATEMENTS OF STOCKHOLDERS’ EQUITY - Continued
Years Ended March 31, 2015, 2014 and 2013
(In thousands, except per share amounts)	Shares of Common Stock	Common Stock		Capital in Excess of Par Value			Retained Earnings			Accumulated Other Comprehensive Income (Loss)			Shares of Treasury Stock		Treasury Stock			Total Stockholders’ Equity
Net earnings							368,086											368,086
Foreign currency translation adjustments										(15,708		)						(15,708		)
Reclassification of hedging loss included in net earnings (Note 10)										517								517
Net tax expense of other comprehensive income items										(191		)						(191		)
Treasury stock reissuances in connection with stock options exercised (Note 13)				(1,368		)	(20,386		)				1,026		76,033			54,279
Reissuance of treasury stock for acquisition (Note 3)				1,368									41		3,090			4,458
Dividends paid on common stock ($2.20 per share) (Note 12)							(164,517		)									(164,517		)
Excess tax benefit associated with the exercise of stock options				16,045														16,045
Shares issued in connection with the Employee Stock Purchase Plan (Note 13)	201	2		17,939														17,941
Stock-based compensation expense (Note 13)				30,027														30,027
Balance - March 31, 2015	87,554	$	876	$	853,800		$	2,231,026		$	(14,853	)	(12,197	)	$	(919,263	)	$	2,151,586

See accompanying notes to consolidated financial statements.

F-8

AIRGAS, INC. AND SUBSIDIARIES

CONSOLIDATED STATEMENTS OF CASH FLOWS

	Years Ended March 31,
(In thousands)	2015			2014			2013
CASH FLOWS FROM OPERATING ACTIVITIES
Net earnings	$	368,086		$	350,784		$	340,874
Adjustments to reconcile net earnings to net cash provided by operating activities:
Depreciation	297,710			275,461			261,622
Amortization	31,348			29,845			27,278
Impairment	—			—			1,729
Deferred income taxes	32,841			(6,869		)	36,309
Loss (gain) on sales of plant and equipment	(3,137		)	(1,264		)	(1,551		)
Gain on sale of businesses	—			—			(6,822		)
Stock-based compensation expense	30,027			28,961			27,053
Loss on the extinguishment of debt	—			9,150			—
Changes in assets and liabilities, excluding effects of business acquisitions and divestitures:
Trade receivables, net	(925		)	20,030			(42,485		)
Inventories, net	5,091			2,291			(62,317		)
Prepaid expenses and other current assets	(31,935		)	41,408			(14,706		)
Accounts payable, trade	4,954			4,732			(2,636		)
Accrued expenses and other current liabilities	(3,377		)	(4,463		)	(8,090		)
Other, net	(12,646		)	(5,206		)	(5,990		)
Net cash provided by operating activities	718,037			744,860			550,268
CASH FLOWS FROM INVESTING ACTIVITIES
Capital expenditures	(468,789		)	(354,587		)	(325,465		)
Proceeds from sales of plant, equipment and businesses	23,083			15,483			31,413
Business acquisitions and holdback settlements	(51,382		)	(203,529		)	(97,521		)
Other, net	325			(951		)	(1,286		)
Net cash used in investing activities	(496,763		)	(543,584		)	(392,859		)
CASH FLOWS FROM FINANCING ACTIVITIES
Net increase (decrease) in short-term debt	(62,776		)	387,352			(388,452		)
Proceeds from borrowings of long-term debt	317,423			135,861			862,832
Repayment of long-term debt	(415,907		)	(636,587		)	(21,428		)
Financing costs	(5,445		)	—			(6,697		)
Premium paid on redemption of senior subordinated notes	—			(7,676		)	—
Purchase of treasury stock	—			(8,127		)	(591,873		)
Proceeds from the exercise of stock options	54,280			38,310			88,700
Stock issued for the Employee Stock Purchase Plan	17,940			17,313			17,088
Excess tax benefit realized from the exercise of stock options	16,045			13,668			36,160
Dividends paid to stockholders	(164,517		)	(141,461		)	(122,202		)
Change in cash overdraft and other	2,846			(16,754		)	10,186
Net cash used in financing activities	(240,111		)	(218,101		)	(115,686		)
Change in cash	$	(18,837	)	$	(16,825	)	$	41,723
Cash – Beginning of period	69,561			86,386			44,663
Cash – End of period	$	50,724		$	69,561		$	86,386

For supplemental cash flow disclosures, see Note 20.

See accompanying notes to consolidated financial statements.

F-9

AIRGAS, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

(1)SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

(a) Description of the Business

Airgas, Inc., together with its subsidiaries (“Airgas” or the “Company”), became a publicly traded company on the New York Stock Exchange in 1986. Since its inception, the Company has made more than 450 acquisitions to become one of the nation’s leading suppliers of industrial, medical and specialty gases, and hardgoods, such as welding equipment and related products. Airgas is a leading U.S. producer of atmospheric gases, carbon dioxide, dry ice and nitrous oxide, one of the largest U.S. suppliers of safety products, and a leading U.S. supplier of refrigerants, ammonia products and process chemicals.The Company markets its products and services through multiple sales channels, including branch-based sales representatives, retail stores, strategic customer account programs, telesales, catalogs, e-Business and independent distributors. Approximately 17,000 associates work in more than 1,100 locations, including branches, retail stores, gas fill plants, specialty gas labs, production facilities and distribution centers.

(b) Basis of Presentation

The consolidated financial statements include the accounts of Airgas, Inc. and its subsidiaries. Intercompany accounts and transactions are eliminated in consolidation.

The Company has made estimates and assumptions relating to the reporting of assets and liabilities and disclosure of contingent assets and liabilities to prepare these consolidated financial statements in conformity with U.S. generally accepted accounting principles (“GAAP”). Estimates are used for, but not limited to, determining the net carrying value of trade receivables, inventories, plant and equipment, goodwill, other intangible assets, asset retirement obligations, business and health insurance reserves, loss contingencies and deferred tax assets. Actual results could differ from those estimates.

(c) Cash and Cash Overdraft

On a daily basis, available funds are swept from depository accounts into a concentration account and used to repay borrowings under the Company’s commercial paper program. Cash principally represents the balance of customer checks that have not yet cleared through the banking system and become available to be swept into the concentration account, and deposits made subsequent to the daily cash sweep. The Company does not fund its disbursement accounts for checks it has written until the checks are presented to the bank for payment. Cash overdrafts represent the balance of outstanding checks and are classified with other current liabilities. There are no compensating balance requirements or other restrictions on the transfer of cash associated with the Company’s depository accounts.

(d) Allowance for Doubtful Accounts

The Company maintains an allowance for doubtful accounts, which includes sales returns, sales allowances and bad debts. The allowance adjusts the carrying value of trade receivables for the estimate of accounts that will ultimately not be collected. An allowance for doubtful accounts is generally established as trade receivables age beyond their due dates, whether as bad debts or as sales returns and allowances. As past due balances age, higher valuation allowances are established, thereby lowering the net carrying value of receivables. The amount of valuation allowance established for each past-due period reflects the Company’s historical collections experience, including that related to sales returns and allowances, as well as current economic conditions and trends. The Company also qualitatively establishes valuation allowances for specific problem accounts and bankruptcies, and other accounts that the Company deems relevant for specifically identified allowances. The amounts ultimately collected on past due trade receivables are subject to numerous factors including general economic conditions, the condition of the receivable portfolios assumed in acquisitions, the financial condition of individual customers and the terms of reorganization for accounts exiting bankruptcy. Changes in these conditions impact the Company’s collection experience and may result in the recognition of higher or lower valuation allowances.

(e) Inventories

Inventories are stated at the lower of cost or market. Cost is determined using the first-in, first-out (“FIFO”) and average-cost methods. Substantially all of the inventories are finished goods.

(f) Plant and Equipment

Plant and equipment are initially stated at cost. Long-lived assets, including plant and equipment, are reviewed for impairment whenever events or changes in circumstances indicate that the recorded values cannot be recovered from the undiscounted future cash flows. For impairment testing purposes, long-lived assets are grouped with other assets and liabilities

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AIRGAS, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued)

at the lowest level for which independent identifiable cash flows are determinable. When the book value of an asset or group of assets exceeds the associated undiscounted expected future cash flows, it is considered to be potentially impaired and is written down to fair value, which is determined based on either discounted future cash flows or appraised values. The Company also leases property, plant and equipment, principally under operating leases. Rent expense for operating leases, which may have escalating rentals or rent holidays, is recorded on a straight-line basis over the respective lease terms.

The Company determines depreciation expense using the straight-line method based on the estimated useful lives of the related assets. The Company uses accelerated depreciation methods for tax purposes where appropriate. Depreciation expense is recognized on the Company’s plant and equipment in the consolidated statement of earnings line item “Depreciation.”

The Company capitalizes the interest cost associated with the development and construction of significant new plant and equipment and depreciates that amount over the lives of the related assets. Capitalized interest recorded for construction in progress during each of the years in the three-year period ended March 31, 2015 was not material.

(g) Computer Software

The Company capitalizes certain costs incurred to purchase or develop computer software for internal use. These costs include purchased software packages, payments to vendors and consultants for the development, implementation or modification of purchased software packages for Company use, payroll and related costs for employees associated with internal-use software projects, interest costs incurred in developing software for internal use, and software costs that allow for access or conversion of old data by new internal-use software. Capitalized computer software costs are included within plant and equipment on the Company’s consolidated balance sheets and depreciated over the estimated useful life of the computer software, which is generally three to ten years.

(h) Goodwill and Other Intangible Assets

Goodwill is an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. The Company is required to test goodwill associated with each of its reporting units for impairment at least annually and whenever events or circumstances indicate that it is more likely than not that goodwill may be impaired. The Company performs its annual goodwill impairment test as of October 31 of each year.

Other intangible assets primarily consist of non-competition agreements and customer relationships resulting from business acquisitions. Both non-competition agreements and customer relationships are recorded based on their acquisition date fair values. Non-competition agreements are amortized using the straight-line method over the respective terms of the agreements. Customer relationships are amortized using the straight-line method over their estimated useful lives, which range from seven to 25 years. The determination of the estimated benefit periods associated with customer relationships is based on an analysis of historical customer sales attrition information and other customer-related factors at the date of acquisition. There are no expected residual values related to the Company’s other intangible assets.

The Company evaluates the estimated benefit periods and recoverability of its other intangible assets when facts and circumstances indicate that the lives may not be appropriate and/or the carrying values of the asset group containing other intangible assets may not be recoverable through the projected undiscounted future cash flows of the group. If the carrying value of the asset group containing other intangible assets is not recoverable, impairment is measured as the amount by which the carrying value exceeds its estimated fair value. Fair value is determined using discounted cash flows or other techniques.

(i) Deferred Financing Costs

Financing costs related to the issuance of long-term debt are deferred and included in prepaid expenses and other current assets or in other non-current assets, depending upon the classification of the debt to which the costs relate. Deferred financing costs are amortized as interest expense over the term of the related debt instrument.

(j) Asset Retirement Obligations

The fair value of a liability for an asset retirement obligation is recognized in the period during which the asset is placed in service. The fair value of the liability is estimated using projected discounted cash flows. In subsequent periods, the retirement obligation is accreted to its future value, which is the estimate of the obligation at the asset retirement date. When the asset is placed in service, a corresponding retirement asset equal to the fair value of the retirement obligation is also recorded as part of the carrying amount of the related long-lived asset and depreciated over the asset’s useful life. The majority of the Company’s asset retirement obligations are related to the restoration costs associated with returning plant and bulk tank sites to their original condition upon termination of long-term leases or supply agreements. The Company’s asset retirement obligations

F-11

AIRGAS, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued)

totaled $20.4 million and $19.0 million at March 31, 2015 and 2014, respectively, and are reflected within other non-current liabilities on the Company’s consolidated balance sheets.

(k) Nonretirement Postemployment Benefits

The Company has a severance plan covering its eligible employees. The benefit payable under the plan is attributable to employee services rendered with benefits that accumulate over time. When employees are entitled to severance benefits as part of a restructuring plan (see Note 22) and the benefits are part of an ongoing benefit arrangement, a liability and associated charge is recognized when payment of the severance benefits becomes probable and estimable.

(l) Loss Contingencies

Liabilities for loss contingencies arising from claims, assessments, litigation and other sources are recorded when it is probable that a liability has been incurred and the amount of the claim, assessment or damages can be reasonably estimated.

The Company maintains business insurance programs with deductible limits, which cover workers’ compensation, business automobile and general liability claims. The Company accrues estimated losses using actuarial models and assumptions based on historical loss experience. The actuarial calculations used to estimate business insurance reserves are based on numerous assumptions, some of which are subjective. The Company will adjust its business insurance reserves, if necessary, in the event future loss experience differs from historical loss patterns.

(m) Income Taxes

Income taxes are accounted for under the asset and liability method. Deferred tax assets and liabilities are recognized for the future tax consequences attributable to differences between the financial statement carrying amounts of assets and liabilities and their respective tax bases, and operating loss carryforwards. Deferred tax assets and liabilities are measured using enacted tax rates expected to apply to taxable income in the years in which those temporary differences and operating loss carryforwards are expected to be recovered, settled or utilized. The effect on deferred tax assets and liabilities of a change in tax rates is recognized in income in the period that includes the enactment date. Valuation allowances are recorded to reduce deferred tax assets when it is more likely than not that a tax benefit will not be realized.

The Company recognizes the benefit of an income tax position only if it is more likely than not (greater than 50%) that the tax position will be sustained upon tax examination, based solely on the technical merits of the tax position. Otherwise, no benefit is recognized. The tax benefits recognized are measured based on the largest benefit that has a greater than 50% likelihood of being realized upon ultimate settlement. Additionally, the Company accrues interest and related penalties, if applicable, on all tax exposures for which reserves have been established consistent with jurisdictional tax laws. Interest and penalties are classified as income tax expense in the consolidated statements of earnings.

(n) Foreign Currency Translation

The functional currency of the Company’s foreign operations is the applicable local currency. The translation of foreign currencies into U.S. dollars is performed for balance sheet accounts using current exchange rates in effect at the balance sheet date and for revenue and expense accounts using average exchange rates during each reporting period. The gains or losses resulting from such translations are included in stockholders’ equity as a component of accumulated other comprehensive income. Gains and losses arising from foreign currency transactions are reflected in the consolidated statements of earnings as incurred.

(o) Treasury Stock

The Company records repurchases of its common stock for treasury at cost. Upon the reissuance of the Company’s common stock from treasury, differences between the proceeds from reissuance and the average cost of the treasury stock are credited or charged to capital in excess of par value to the extent of prior credits related to the reissuance of treasury stock. If no such credits exist, the differences are charged to retained earnings.

(p) Concentrations of Credit Risk

Financial instruments that potentially subject the Company to concentrations of credit risk consist principally of trade receivables. Concentrations of credit risk are limited due to the Company’s large number of customers and their dispersion across many industries primarily throughout North America. Credit terms granted to customers are generally net 30 days.

(q) Derivative Instruments and Hedging Activities

The Company manages its exposure to changes in market interest rates through the occasional use of interest rate derivative instruments, when deemed appropriate. The Company’s involvement with derivative instruments has been limited to

F-12

AIRGAS, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued)

interest rate swap and treasury rate lock agreements used to manage well-defined interest rate risk exposures. An interest rate swap is a contractual exchange of interest payments between two parties. A standard interest rate swap involves the payment of a fixed rate times a notional amount by one party in exchange for receiving a floating rate times the same notional amount from the other party. As interest rates change, the difference to be paid or received is accrued and recognized as interest expense or income over the life of the agreement. Treasury rate lock agreements are used to fix the interest rate related to forecasted debt issuances. Interest rate swap and treasury rate lock agreements are not entered into for trading purposes.

When the Company has derivative instruments outstanding, it monitors its positions as well as the credit ratings of its counterparties, including the potential for non-performance by the counterparties. The Company recognizes outstanding derivative instruments as either assets or liabilities at fair value on the consolidated balance sheet. Interest rate contracts have traditionally been designated as hedges and recorded at fair value, with changes in fair value recognized in either accumulated other comprehensive income or in the carrying value of the hedged portions of fixed-rate debt, as applicable. Gains and losses on derivative instruments representing hedge ineffectiveness were recognized immediately in the respective year’s earnings.

(r) Revenue Recognition

Revenue from sales of gases and hardgoods products is recognized when the product is shipped, the sales price is fixed or determinable and collectability is reasonably assured. Rental fees on cylinders, cryogenic liquid containers, bulk gas storage tanks and other equipment are recognized when earned. For contracts that contain multiple deliverables, principally product supply agreements for gases and container rental, revenue is recognized for each deliverable as a separate unit of accounting, with selling prices derived from Company specific or third-party evidence. For cylinder lease agreements in which rental fees are collected in advance, revenues are deferred and recognized over the respective terms of the lease agreements. Amounts billed for sales tax, value added tax or other transactional taxes imposed on revenue-producing transactions are presented on a net basis and are not recognized as revenue.

(s) Cost of Products Sold (Excluding Depreciation)

Cost of products sold (excluding depreciation) for the Distribution business segment includes the cost of direct materials, freight-in and maintenance costs associated with cylinders, cryogenic liquid containers and bulk tanks. Cost of products sold (excluding depreciation) related to gases produced by the Company’s air separation facilities includes direct manufacturing expenses, such as direct labor, power and overhead.

Cost of products sold (excluding depreciation) for the All Other Operations business segment principally consists of direct material costs, freight-in and direct manufacturing expenses, such as direct labor, power and overhead.

(t) Selling, Distribution and Administrative Expenses

Selling, distribution and administrative expenses consist of labor and overhead associated with the purchasing, marketing and distribution of the Company’s products, as well as costs associated with a variety of administrative functions such as legal, treasury, accounting and tax, and facility-related expenses.

(u) Shipping and Handling Fees and Distribution Costs

The Company recognizes delivery and freight charges to customers as elements of net sales. Costs of third-party freight-in are recognized as cost of products sold (excluding depreciation). The majority of the costs associated with the distribution of the Company’s products, which include labor and overhead associated with filling, warehousing and delivery by Company and third-party vehicles, are reflected in selling, distribution and administrative expenses and were $889 million, $850 million and $841 million for the fiscal years ended March 31, 2015, 2014 and 2013, respectively. The Company conducts multiple operations out of the same facilities and does not allocate facility-related expenses to each operational function. Accordingly, there is no facility-related expense in the distribution costs disclosed above. Depreciation expense associated with the Company’s delivery fleet of $32 million, $32 million and $30 million was recognized in depreciation for the fiscal years ended March 31, 2015, 2014 and 2013, respectively.

(v) Stock-based Compensation

The Company grants stock-based compensation awards in connection with its equity incentive and employee stock purchase plans. Stock-based compensation expense is generally recognized on a straight-line basis over the stated vesting period for each award, with accelerated vesting for retirement-eligible employees in accordance with the provisions of the equity incentive plan. See Note 13 for additional disclosures relating to stock-based compensation.

F-13

AIRGAS, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued)

(2)ACCOUNTING AND DISCLOSURE CHANGES

Recently Adopted Accounting Pronouncements

In March 2013, the Financial Accounting Standards Board (“FASB”) issued new guidance clarifying the accounting for the release of cumulative translation adjustments (“CTA”) into net income upon the occurrence of certain sale or other derecognition transactions related to foreign entities. The new guidance describes the circumstances in which CTA should be released (either partially or fully) into net income based on the type of transaction related to a foreign entity. The Company adopted the new guidance effective April 1, 2014. The guidance did not have an impact on the Company’s financial position, results of operation or liquidity upon adoption.

In July 2013, the FASB issued new guidance clarifying the financial statement presentation of unrecognized tax benefits. The new guidance specifies that an unrecognized tax benefit (or a portion thereof) shall be presented in the financial statements as a reduction to a deferred tax asset depending on the availability of certain deferred tax assets to settle the additional income taxes resulting from the disallowance of a tax position. If the deferred tax asset is not available or the entity does not plan to use the deferred tax asset for such purpose given the option, the unrecognized tax benefit shall be presented in the financial statements as a liability and shall not be combined with deferred tax assets. The Company adopted the new guidance effective April 1, 2014, with no material impact on the balance sheet presentation of its unrecognized tax benefits.

Accounting Pronouncements Not Yet Adopted

In April 2014, the FASB issued new guidance on the reporting of discontinued operations. The guidance amends existing standards by limiting the presentation of discontinued operations to disposals that represent a strategic shift with a major effect on an entity’s operations and financial results. In contrast, many disposals under current standards, which may be more routine in nature and not change an entity’s strategy, are reported in discontinued operations. The guidance also requires new disclosures around both disposals qualifying for discontinued operations as well as significant disposals that are not considered discontinued operations. The Company adopted the new guidance effective April 1, 2015. The guidance did not have an impact on the Company’s consolidated financial statements and related disclosures upon adoption. The Company will prospectively apply the provisions of the new guidance to applicable disposal transactions.

In May 2014, the FASB issued new guidance on the accounting for revenue from contracts with customers, which requires an entity to recognize the amount of revenue to which it expects to be entitled for the transfer of promised goods or services to customers. The new guidance will replace most existing GAAP revenue recognition guidance when it becomes effective. The new standard is effective for the Company on April 1, 2017, and early application is not permitted. The standard permits the use of either the retrospective or cumulative effect transition method. The Company is evaluating the effect that the new guidance will have on its consolidated financial statements and related disclosures. The Company has not yet selected a transition method nor has it determined the effect of the standard on its ongoing financial reporting.

In February 2015, the FASB issued new guidance changing the analysis that a reporting entity must perform to determine whether it should consolidate certain types of legal entities. The new guidance changes the way reporting enterprises evaluate whether (a) they should consolidate limited partnerships and similar entities, (b) fees paid to a decision maker or service provider are variable interests in a variable interest entity (VIE), and (c) variable interests in a VIE held by related parties of the reporting enterprise require the reporting enterprise to consolidate the VIE. The new guidance is effective for the Company on April 1, 2016, with early adoption permitted, including early adoption in an interim period. The new guidance may be applied using either a modified retrospective approach or on a full retrospective basis. The Company does not expect this adoption to have a material impact on its consolidated financial statements.

In April 2015, the FASB issued new guidance simplifying the financial statement presentation of debt issuance costs. The new guidance specifies that debt issuance costs related to a recognized debt liability shall be presented in the balance sheet as a direct deduction from the carrying amount of that debt liability, consistent with debt discounts. The recognition and measurement guidance for debt issuance costs are not affected by the amendments in this accounting standards update. The new guidance is effective for the Company on April 1, 2016, with early adoption permitted, for financial statements that have not been previously issued. The new guidance must be applied on a retrospective basis. The Company does not expect this adoption to have a material impact on its consolidated financial statements.

In April 2015, the FASB issued new guidance on customer’s accounting for fees paid in a cloud computing arrangement. The amendments in this accounting standards update provide guidance to customers about whether a cloud computing arrangement includes a software license. The new guidance clarifies that if a cloud computing arrangement includes a software license, the customer should account for the software license element of the arrangement consistent with the acquisition of other software licenses. If the arrangement does not include a software license, the customer should account for the arrangement as a service contract. The guidance will not change generally accepted accounting principles for a customer’s

F-14

AIRGAS, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued)

accounting for service contracts. The new guidance is effective for the Company on April 1, 2016, with early adoption permitted. The new guidance may be applied either prospectively to all arrangements entered into or materially modified after the effective date or on a retrospective basis. The Company does not expect this adoption to have a material impact on its consolidated financial statements.

(3)ACQUISITIONS AND DIVESTITURES

Acquisitions are recorded using the acquisition method of accounting and accordingly, results of their operations are included in the Company’s consolidated financial statements from the effective date of each respective acquisition. The Company negotiates the respective purchase prices of acquired businesses based on the expected cash flows to be derived from their operations after integration into the Company’s existing distribution, production and service networks. The acquisition purchase price for each business is allocated based on the fair values of the assets acquired and liabilities assumed. Management estimates the fair values of acquired intangible assets other than goodwill using the income approach (i.e. discounted cash flows), and plant and equipment using either the cost or market approach, depending on the type of fixed asset.

Fiscal 2015

During fiscal 2015, the Company acquired 14 businesses with historical annual sales of approximately $55 million. Transaction and other integration costs incurred in fiscal 2015 were $1.7 million and were included in selling, distribution and administrative expenses in the Company’s consolidated statement of earnings. These acquisitions contributed approximately $27 million in net sales in fiscal 2015.

Purchase price allocations for certain businesses most recently acquired during fiscal 2015 are primarily based on provisional fair values and are subject to revision as the Company finalizes appraisals and other analyses. Final determination of the fair values may result in further adjustments to the values presented below. The following table summarizes the consideration transferred and the estimated fair values of the assets acquired and liabilities assumed for fiscal 2015 acquisitions, as well as adjustments to finalize the valuations of certain prior year acquisitions. Valuation adjustments related to prior year acquisitions were not significant.

(In thousands)	Distribution Business Segment			All Other Operations Business Segment			Total
Consideration
Cash (a)	$	50,774		$	1,053		$	51,827
Airgas, Inc. common stock (b)	4,458			—			4,458
Fair value of total consideration transferred	$	55,232		$	1,053		$	56,285
Recognized amounts of identifiable assets acquired and liabilities assumed
Current assets, net	$	9,705		$	3		$	9,708
Plant and equipment	13,824			—			13,824
Other intangible assets	15,122			1,040			16,162
Current liabilities	(5,765		)	(50		)	(5,815		)
Non-current liabilities	(4,526		)	—			(4,526		)
Total identifiable net assets	28,360			993			29,353
Goodwill	26,872			60			26,932
	$	55,232		$	1,053		$	56,285

____________________

^(a)  Includes cash paid, net of cash acquired, for current year acquisitions as well as payments for the settlement of holdback liabilities and contingent consideration arrangements associated with prior year acquisitions.

^(b)  Represents 41,060 shares of Airgas, Inc. common stock issued in connection with a single acquisition. The fair value of the shares issued as part of the consideration for the acquisition was determined based on the closing sales price of Airgas, Inc. common stock on the acquisition date.

The fair value of trade receivables acquired with fiscal 2015 acquisitions was $6.2 million, with gross contractual amounts receivable of $7.0 million. Goodwill associated with fiscal 2015 acquisitions was $25.1 million, of which $20.9

F-15

AIRGAS, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued)

million is deductible for income tax purposes. Goodwill largely consists of expected synergies resulting from the acquisitions, including increased distribution density and enhanced capabilities that that will facilitate the sale of industrial, medical and specialty gases, and related supplies. Other intangible assets related to fiscal 2015 acquisitions represent customer relationships and non-competition agreements and amounted to $11.3 million and $4.8 million, respectively. See Note 7 for further information on goodwill and other intangible assets.

Pro Forma Operating Results

The following table provides unaudited pro forma results of operations for fiscal 2015 and 2014, as if fiscal 2015 acquisitions had occurred on April 1, 2013. The pro forma results were prepared from financial information obtained from the sellers of the businesses, as well as information obtained during the due diligence process associated with the acquisitions. The unaudited pro forma results reflect certain adjustments related to the acquisitions, such as increased depreciation and amortization expense resulting from the stepped-up basis to fair value of assets acquired and adjustments to reflect the Company’s borrowing and tax rates. The pro forma operating results do not include any anticipated synergies related to combining the businesses. Accordingly, such pro forma operating results were prepared for comparative purposes only and do not purport to be indicative of what would have occurred had the acquisitions been made as of April 1, 2013 or of results that may occur in the future.

	Unaudited
	Years Ended March 31,
(In thousands, except per share amounts)	2015		2014
Net sales	$	5,327,458	$	5,123,979
Net earnings	368,305		351,941
Diluted earnings per share	$	4.86	$	4.70

Fiscal2014

During fiscal 2014, the Company acquired eleven businesses with historical annual sales of approximately $82 million. The largest of these businesses was The Encompass Gas Group, Inc. (“Encompass”), headquartered in Rockford, Illinois. With eleven locations in Illinois, Wisconsin, and Iowa, Encompass was one of the largest privately-owned suppliers of industrial, medical, and specialty gases and related hardgoods in the United States, generating approximately $55 million in sales in calendar 2012. Transaction and other integration costs incurred in fiscal 2014 were $1.5 million and were included in selling, distribution and administrative expenses in the Company’s consolidated statement of earnings. These acquisitions contributed approximately $33 million in net sales in fiscal 2014.

The following table summarizes, as of March 31, 2014, the consideration transferred and the estimated fair values of the assets acquired and liabilities assumed for fiscal 2014 acquisitions, as well as adjustments to finalize the valuations of certain prior year acquisitions. Valuation adjustments related to prior year acquisitions were not significant.

(In thousands)	Distribution Business Segment			All Other Operations Business Segment			Total
Consideration
Cash (a)	$	204,957		$	413		$	205,370
Recognized amounts of identifiable assets acquired and liabilities assumed
Current assets, net	$	14,631		$	9		$	14,640
Plant and equipment	48,919			(746		)	48,173
Other intangible assets	60,190			—			60,190
Current liabilities	(6,088		)	1,366			(4,722		)
Non-current liabilities	(8,321		)	—			(8,321		)
Total identifiable net assets	109,331			629			109,960
Goodwill	95,626			(216		)	95,410
	$	204,957		$	413		$	205,370

__________________

F-16

AIRGAS, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued)

^(a)  Includes cash paid, net of cash acquired, for current year acquisitions as well as payments for the settlement of holdback liabilities and contingent consideration arrangements associated with prior year acquisitions.

The fair value of trade receivables acquired with fiscal 2014 acquisitions was $8.9 million, with gross contractual amounts receivable of $9.4 million. Goodwill associated with fiscal 2014 acquisitions was $93.3 million, of which $89.7 million is deductible for income tax purposes. Goodwill largely consists of expected synergies resulting from the acquisitions, including the expansion of geographical coverage that will facilitate the sale of industrial, medical and specialty gases and related supplies. Other intangible assets related to fiscal 2014 acquisitions represent customer relationships and non-competition agreements, and amounted to $55.8 million and $4.3 million, respectively.

Pro Forma Operating Results

The following table provides unaudited pro forma results of operations for fiscal 2014 and 2013, as if fiscal 2014 acquisitions had occurred on April 1, 2012. The pro forma operating results were prepared for comparative purposes only and do not purport to be indicative of what would have occurred had the acquisitions been made as of April 1, 2012 or of results that may occur in the future.

	Unaudited
	Years Ended March 31,
(In thousands, except per share amounts)	2014		2013
Net sales	$	5,122,936	$	5,037,123
Net earnings	352,421		343,933
Diluted earnings per share	$	4.70	$	4.39

Fiscal 2013

During fiscal 2013, the Company acquired 18 businesses with historical annual sales of approximately $95 million. Transaction and other integration costs incurred in fiscal 2013 were $1.3 million and were included in selling, distribution and administrative expenses in the Company’s consolidated statement of earnings. These acquisitions contributed approximately $30 million in net sales in fiscal 2013.

The following table summarizes, as of March 31, 2013, the consideration transferred and the estimated fair values of the assets acquired and liabilities assumed for fiscal 2013 acquisitions, as well as adjustments to finalize the valuations of certain prior year acquisitions. Valuation adjustments related to prior year acquisitions were not significant.

(In thousands)	Distribution Business Segment			All Other Operations Business Segment			Total
Consideration
Cash (a)	$	93,555		$	3,966		$	97,521
Recognized amounts of identifiable assets acquired and liabilities assumed
Current assets, net	$	14,627		$	548		$	15,175
Plant and equipment	24,191			1,018			25,209
Other intangible assets	38,658			2,155			40,813
Current liabilities	(10,990		)	(2,134		)	(13,124		)
Non-current liabilities	(4,035		)	(722		)	(4,757		)
Total identifiable net assets	62,451			865			63,316
Goodwill	31,104			3,101			34,205
	$	93,555		$	3,966		$	97,521

________________

^(a)  Includes cash paid, net of cash acquired, for current year acquisitions as well as payments for the settlement of holdback liabilities and contingent consideration arrangements associated with prior year acquisitions.

The fair value of trade receivables acquired with fiscal 2013 acquisitions was $9.2 million, with gross contractual amounts receivable of $9.6 million. Goodwill associated with fiscal 2013 acquisitions was $35.2 million and is deductible for

F-17

AIRGAS, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued)

income tax purposes. Goodwill largely consists of expected synergies resulting from the acquisitions, including the expansion of geographical coverage that will facilitate the sale of industrial, medical and specialty gases and related supplies, and the addition of businesses complementary to the Company’s portfolio of products and services. Other intangible assets related to fiscal 2013 acquisitions represent customer relationships and non-competition agreements, and amounted to $30.4 million and $11.7 million, respectively.

Divestitures

On June 1, 2012, the Company divested the assets and operations of five branch locations in western Canada. The Company realized a gain on sale of $6.8 million ($5.5 million after tax) recorded in the “Other income, net” line item of the Company’s consolidated statement of earnings. The operations were included in the Distribution business segment and contributed net sales that were not material to the Company’s consolidated statement of earnings. Proceeds from the sale were used primarily to pay down outstanding debt under the Company’s multi-currency revolving credit line.

(4)INVENTORIES, NET

Inventories, net, consist of:

(In thousands)	March 31, 2015		March 31, 2014
Hardgoods	$	311,453	$	313,127
Gases	162,617		165,022
	$	474,070	$	478,149

(5)INCOME TAXES

Earnings before income taxes were derived from the following sources:

	Years Ended March 31,
(In thousands)	2015		2014		2013
United States	$	572,182	$	539,063	$	519,833
Foreign	11,939		12,842		23,584
	$	584,121	$	551,905	$	543,417

Income tax expense consists of:

	Years Ended March 31,
(In thousands)	2015		2014			2013
Current:
Federal	$	163,774	$	184,308		$	145,603
Foreign	2,010		4,561			7,042
State	17,410		19,121			13,589
	183,194		207,990			166,234
Deferred:
Federal	24,499		(4,722		)	26,993
Foreign	2,604		(1,127		)	(975		)
State	5,738		(1,020		)	10,291
	32,841		(6,869		)	36,309
	$	216,035	$	201,121		$	202,543

Significant differences between taxes computed at the federal statutory rate and the provision for income taxes were:

F-18

AIRGAS, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued)

	Years Ended March 31,
	2015		2014		2013
Taxes at U.S. federal statutory rate	35.0	%	35.0	%	35.0	%
Increase (decrease) in income taxes resulting from:
State income taxes, net of federal benefit	2.6	%	2.1	%	2.9	%
Domestic production activities deduction	(1.0	)%	(1.0	)%	(0.9	)%
Other, net	0.4	%	0.3	%	0.3	%
	37.0	%	36.4	%	37.3	%

The tax effects of cumulative temporary differences and carryforwards that gave rise to the significant portions of the deferred tax assets and liabilities were as follows:

	March 31,
(In thousands)	2015			2014
Deferred Tax Assets:
Inventories	$	27,697		$	25,874
Deferred rental income	17,986			18,256
Insurance reserves	14,157			12,627
Litigation settlement and other reserves	3,132			3,181
Asset retirement obligations	7,553			7,180
Stock-based compensation	33,538			30,934
Other	19,876			21,864
Net operating loss carryforwards	12,061			13,081
Valuation allowance	(671		)	(308		)
	135,329			132,689
Deferred Tax Liabilities:
Plant and equipment	(711,840		)	(702,080		)
Intangible assets	(207,690		)	(188,289		)
Other	(12,301		)	(10,256		)
	(931,831		)	(900,625		)
Net deferred tax liability	$	(796,502	)	$	(767,936	)

Current deferred tax assets and current deferred tax liabilities have been netted for presentation purposes. Non-current deferred tax assets and non-current deferred tax liabilities have also been netted. Deferred tax assets and liabilities are reflected in the Company’s consolidated balance sheets as follows:

	March 31,
(In thousands)	2015			2014
Current deferred income tax asset, net	$	58,072		$	57,961
Non-current deferred income tax liability, net	(854,574		)	(825,897		)
Net deferred tax liability	$	(796,502	)	$	(767,936	)

The Company has recorded tax benefits amounting to $16.0 million, $13.7 million and $36.2 million in the years ended March 31, 2015, 2014 and 2013, respectively, resulting from the exercise of stock options. This benefit has been recorded in capital in excess of par value.

The Company has recorded deferred tax assets related to the expected future tax benefits of net operating losses of $12.1 million and $13.1 million as of March 31, 2015 and 2014, respectively. Federal and state net operating loss carryforwards expire at various times through 2034. Foreign net operating losses are available to offset future income taxes over an indefinite period.

F-19

AIRGAS, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued)

U.S. income taxes have not been provided on approximately $99 million of undistributed earnings of non-U.S. subsidiaries because it is the Company’s intention to continue to reinvest these earnings in those subsidiaries to support their growth. Due to the timing and circumstances of repatriation of such earnings, if any, it is not practicable to determine the unrecognized deferred tax liability relating to such amounts.

As of March 31, 2015, the Company has unrecognized state tax benefits of approximately $21.0 million, which were recorded in other non-current liabilities, and a related $8.6 million of federal tax assets associated with those state tax benefits recorded in non-current deferred tax assets. If recognized, all of the unrecognized tax benefits and related interest and penalties would reduce tax expense. The Company does not anticipate significant changes in the amount of unrecognized income tax benefits over the next year.

A reconciliation of the beginning and ending amount of unrecognized net income tax benefits, including penalties associated with uncertain tax positions, is as follows:

	March 31,
(In thousands)	2015			2014
Beginning unrecognized net income tax benefits	$	18,224		$	16,467
Additions for current year tax positions	3,565			3,054
Additions for tax positions of prior years	1,288			151
Reductions for tax positions of prior years	(1,646		)	(1,448		)
Reductions for settlements with taxing authorities	(234		)	—
Reductions as a result of expiration of applicable statutes of limitations	(214		)	—
Ending unrecognized net income tax benefits	$	20,983		$	18,224

Interest and penalties recognized for the years ended March 31, 2015, 2014 and 2013 were classified as income tax expense in the Company’s consolidated statements of earnings and were not material. Consistent with past practice, the Company will continue to record interest and penalties associated with uncertain tax positions in income tax expense. The Company had approximately $4.7 million and $4.8 million for the payment of interest and penalties accrued at March 31, 2015 and 2014, respectively.

The Company files income tax returns in the United States and foreign jurisdictions. The Company also files income tax returns in every state which imposes corporate income tax. The Company is not under examination by the IRS or in any significant foreign, state or local tax jurisdictions. With limited exceptions, the Company is no longer subject to U.S. federal, state and local, or foreign income tax examinations by tax authorities for years before fiscal 2011.

(6)PLANT AND EQUIPMENT

The major classes of plant and equipment, at cost, are as follows:

		March 31,
	Depreciable Lives (Yrs)	2015		2014
(In thousands)
Land and land improvements	—	$	225,721	$	209,195
Buildings and improvements	25	581,076		538,712
Cylinders	30	1,461,600		1,405,857
Bulk tank stations	10 to 30 (Average 17)	789,881		720,717
Rental equipment	2 to 10	466,833		403,351
Machinery and equipment	7 to 10	988,857		948,638
Computers, furniture and fixtures	3 to 10	338,316		303,400
Transportation equipment	3 to 15	369,034		341,709
Construction in progress	—	83,741		59,485
		$	5,305,059	$	4,931,064

F-20

AIRGAS, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued)

(7)GOODWILL AND OTHER INTANGIBLE ASSETS

Goodwill

Goodwill is an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. The valuations of assets acquired and liabilities assumed from certain recent acquisitions are based on preliminary estimates of fair value and are subject to revision as the Company finalizes appraisals and other analysis. Changes in the carrying amount of goodwill by business segment for fiscal 2015 and 2014 were as follows:

(In thousands)	Distribution Business Segment			All Other Operations Business Segment			Total
Balance at March 31, 2013	$	998,128		$	197,485		$	1,195,613
Acquisitions (a)	95,626			(216		)	95,410
Other adjustments, including foreign currency translation	(1,026		)	(101		)	(1,127		)
Balance at March 31, 2014	1,092,728			197,168			1,289,896
Acquisitions (a)	26,872			60			26,932
Other adjustments, including foreign currency translation	(3,031		)	(153		)	(3,184		)
Balance at March 31, 2015	$	1,116,569		$	197,075		$	1,313,644

____________________

^(a)  Includes acquisitions completed during the respective year and adjustments made to prior year acquisitions.

Annual Test for Goodwill Impairment

The Company is required to test goodwill associated with each of its reporting units for impairment at least annually and whenever events or circumstances indicate that it is more likely than not that goodwill may be impaired. The Company performs its annual goodwill impairment test as of October 31 of each year. At October 31, 2014, the Company had 21 reporting units in the Distribution business segment and 5 reporting units in the All Other Operations business segment, each of which constitutes an operating segment for purposes of the Company’s segment reporting.

GAAP provides that prior to performing the traditional two-step goodwill impairment test, the Company is permitted to first perform a qualitative assessment about the likelihood of the carrying value of a reporting unit exceeding its fair value, referred to as the “Step 0” assessment. The Step 0 assessment requires the evaluation of certain events and circumstances such as macroeconomic conditions, industry and market considerations, cost factors and overall financial performance, as well as company and reporting unit-specific items. After performing the Step 0 assessment, should the Company determine that it is more likely than not that the fair value of a reporting unit is less than its carrying amount, it is required to perform the prescribed two-step goodwill impairment test to identify the potential goodwill impairment and measure the amount of the goodwill impairment loss, if any, to be recognized for that reporting unit. However, if the Company concludes otherwise based on the Step 0 assessment, the two-step goodwill impairment test is not required. The Step 0 assessment can be applied to none, some or all of the Company’s reporting units in any period, and the Company may also bypass the Step 0 assessment for any reporting unit in any period and proceed directly to performing the first step of the two-step goodwill impairment test for the given reporting unit.

For the October 31, 2014 goodwill impairment test, the Company applied the Step 0 assessment to all 21 of the reporting units in the Distribution business segment and 4 of the 5 reporting units in the All Other Operations business segment. After performing the Step 0 assessment for these reporting units, the Company concluded that it is more likely than not that the fair value of each reporting unit is greater than its carrying amount. Therefore, the two-step goodwill impairment test is not required for these reporting units.

However, the Company bypassed the option to perform the Step 0 assessment and proceeded directly to performing the first step of the two-step goodwill impairment test for the Company’s refrigerants business in the All Other Operations business segment. The Company determined the estimated fair value of the reporting unit as of October 31, 2014 using a discounted cash flow model and compared this value to the carrying value of the reporting unit. Significant assumptions used in the cash flow model include sales growth rates and profit margins based on the reporting unit’s business plan, future capital expenditures, working capital needs, and discount and perpetual growth rates. The discount rate used to estimate the fair value of the reporting unit exceeded the Company’s weighted average cost of capital as a whole, as the discount rate used for this purpose assigns a higher risk premium to the smaller entity. The perpetual growth rate assumed in the discounted cash flow model was in line with the long-term growth rate as measured by the U.S. Gross Domestic Product and the industry’s long-term

F-21

AIRGAS, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued)

rate of growth. In addition to Company and reporting unit-specific growth targets, general economic conditions, the long-term economic outlook for the U.S. economy, and market conditions affecting borrowing costs and returns on equity all influence the estimated fair value of the reporting unit. The Company’s methodology used for valuing this reporting unit for the purpose of its goodwill impairment test is consistent with the prior year.

For the Company’s refrigerants business, the result of the annual goodwill impairment test indicated that the fair value of the reporting unit was in excess of its carrying amount by slightly more than 10%. The forecasted cash flows for this business reflect changes in the regulatory environment and market responses to those changes, which were recently impacted by rulings from the United States Environmental Protection Agency (“EPA”). Volumes and pricing for the refrigerants business were pressured following the EPA ruling in March 2013 that allowed for an increase in the production and import of Refrigerant-22 (“R-22”) in calendar years 2013 and 2014, resulting in a greater-than-expected availability of virgin R-22 in the marketplace. In October 2014, the EPA posted its final calendar year 2015 to 2019 allocation rule pertaining to allowances for virgin production and consumption of hydrochlorofluorocarbons (“HCFCs”), including R-22. The final rule provided clarity on the pace and magnitude of the reduction in allowable production of R-22 for the calendar year 2015 to 2019 time period, beginning with an approximately 60% reduction for calendar year 2015 and ending with a final ban on all production effective January 1, 2020.

The Company believes its refrigerants business remains well-positioned over the long-term to benefit from the affirmed production and consumption reductions as a leading reclaimer and recycler of R-22, and that the impact from the EPA’s October 2014 ruling will be incrementally positive for its refrigerants business over the long-term. However, there is uncertainty as to how the final ruling will impact the market dynamics in the near-term, as the market sheds the excess inventory that has accumulated throughout the supply chain since the previous EPA ruling in March 2013. Changes in the reporting unit’s estimated future cash flows as a result of near-term uncertainty in the market based on the excess inventory build-up, as well as the pace and extent of marketplace migration toward the use of reclaimed product, could adversely affect the fair value or carrying amount of this reporting unit. As a result, the Company will continue to monitor this business and consider interim analyses of goodwill as appropriate. The amount of goodwill associated with this reporting unit was $88 million at March 31, 2015.

Other Intangible Assets

Other intangible assets by major class are as follows:

	March 31, 2015								March 31, 2014
(In thousands)	Weighted Average Amortization Period (Years)	Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount		Weighted Average Amortization Period (Years)	Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount
Customer relationships	17	$	345,805	$	(120,321	)	$	225,484	17	$	345,199	$	(107,577	)	$	237,622
Non-competition agreements	6	43,204		(24,335		)	18,869		7	40,316		(19,287		)	21,029
Other		200		(34		)	166			199		(14		)	185
		$	389,209	$	(144,690	)	$	244,519		$	385,714	$	(126,878	)	$	258,836

As the Company’s other intangible assets amortize and reach the end of their respective amortization periods, the fully amortized balances are removed from the gross carrying and accumulated amortization amounts. Amortization expense related to the Company’s other intangible assets for fiscal 2015 and 2014 was $30.0 million and $28.6 million, respectively. Estimated future amortization expense by fiscal year is as follows: fiscal 2016 - $29.1 million; 2017 - $27.2 million; 2018 - $25.4 million; 2019 - $23.4 million; 2020 - $21.9 million; and $117.5 million thereafter.

Prior Year Impairment Evaluation

In June 2012, the Company re-evaluated the economic viability of a small hospital piping construction business associated with a reporting unit in the Company’s All Other Operations business segment. In accordance with relevant accounting guidance, if events or circumstances exist indicating that it is more likely than not that goodwill may be impaired, the Company is required to perform an interim assessment of the carrying value of goodwill. However, prior to performing the test for goodwill impairment, the Company is required to perform an assessment of the recoverability of the long-lived assets (including amortizing intangible assets) of the business. Long-lived assets are not considered recoverable when the carrying amount of the long-lived asset or asset group exceeds the undiscounted expected future cash flows. If long-lived assets are not recoverable, an impairment loss is recognized to the extent that the carrying amount exceeds fair value.

F-22

AIRGAS, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued)

As a result of the impairment analysis performed on the long-lived assets at this reporting unit, the Company recorded a charge of $1.7 million related to certain of the other intangible assets associated with this business during the year ended March 31, 2013. The charge was reflected in the “Restructuring and other special charges, net” line item of the Company’s consolidated statement of earnings and was not allocated to the Company’s business segments (see Note 21). See Note 11 for further information on the valuation methodology used in determining the impairment loss.

Subsequent to the intangible asset write-down, the Company performed an assessment of the carrying value of goodwill associated with the reporting unit. The assessment did not indicate that the reporting unit’s goodwill was potentially impaired.

(8)ACCRUED EXPENSES AND OTHER CURRENT LIABILITIES

Accrued expenses and other current liabilities include:

(In thousands)	March 31, 2015		March 31, 2014
Accrued payroll and employee benefits	$	98,547	$	92,038
Business insurance reserves (a)	49,934		49,372
Taxes other than income taxes	22,863		25,183
Cash overdraft	71,537		68,245
Deferred rental revenue	34,538		34,557
Accrued interest	12,860		11,335
Other accrued expenses and current liabilities	56,600		64,946
	$	346,879	$	345,676

____________________

^(a)  With respect to the business insurance reserves above, the Company had corresponding insurance receivables of $11.6 million at March 31, 2015 and $11.8 million at March 31, 2014, which are included within the “Prepaid expenses and other current assets” line item on the Company’s consolidated balance sheets. The insurance receivables represent the balance of probable claim losses in excess of the Company’s deductible for which the Company is fully insured.

(9)INDEBTEDNESS

Total debt consists of:

(In thousands)	March 31, 2015			March 31, 2014
Short-term
Money market loans	$	—		$	—
Commercial paper	325,871			387,866
Short-term debt	$	325,871		$	387,866
Long-term
Trade receivables securitization	$	295,000		$	295,000
Revolving credit borrowings - U.S.	—			—
Revolving credit borrowings - Multi-currency	48,332			54,230
Revolving credit borrowings - France	6,277			8,056
Senior notes, net	1,648,608			1,748,774
Other long-term debt	555			1,036
Total long-term debt	1,998,772			2,107,096
Less current portion of long-term debt	(250,110		)	(400,322		)
Long-term debt, excluding current portion	$	1,748,662		$	1,706,774
Total debt	$	2,324,643		$	2,494,962

Money Market Loans

F-23

AIRGAS, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued)

The Company has an agreement with a financial institution to provide access to short-term advances not to exceed $35 million that expires on December 29, 2015. The agreement may be further extended subject to renewal provisions contained in the agreement. The advances may be for one to six months with rates at a fixed spread over the corresponding London Interbank Offering Rate (“LIBOR”). At March 31, 2015, there were no advances outstanding under the agreement.

The Company also has an agreement with another financial institution that provides access to additional short-term advances not to exceed $35 million that expires on July 31, 2015. The agreement may be extended subject to renewal provisions contained in the agreement. The advances are generally overnight or for up to seven days. The amount, term and interest rate of an advance are established through mutual agreement with the financial institution when the Company requests such an advance. At March 31, 2015, there were no advances outstanding under the agreement.

Commercial Paper

In November 2014, the Company’s commercial paper program, which is supported by its Credit Facility, was increased to $1 billion in conjunction with the increased size of the Credit Facility (see below). This program allows the Company to obtain favorable short-term borrowing rates withmaturities that vary, but will generally not exceed 90 days from the date of issue, and is classified as short-term debt.At maturity, the commercial paper balances are often rolled over rather than repaid or refinanced, depending on the Company’s cash and liquidity positions.The Company has used proceeds from commercial paper issuances for general corporate purposes. At March 31, 2015, $326 million was outstanding under the commercial paper program and the average interest rate on these borrowings was 0.57%. There was $388 million outstanding under the commercial paper program at March 31, 2014.

Trade Receivables Securitization

The Company participates in a securitization agreement with three commercial bank conduits to which it sells qualifying trade receivables on a revolving basis (the “Securitization Agreement”). The Company’s sale of qualified trade receivables is accounted for as a secured borrowing under which qualified trade receivables collateralize amounts borrowed from the commercial bank conduits. Trade receivables that collateralize the Securitization Agreement are held in a bankruptcy-remote special purpose entity, which is consolidated for financial reporting purposes and represents the Company’s only variable interest entity. Qualified trade receivables in the amount of the outstanding borrowing under the Securitization Agreement are not available to the general creditors of the Company. The maximum amount available under the Securitization Agreement is $295 million, with the outstanding borrowings bearing interest at a rate of approximately LIBOR plus 75 basis points.

On December 5, 2014, the Company entered into the Fourth Amendment to the Securitization Agreement, which extended the expiration date of the Securitization Agreement from December 5, 2016 to December 5, 2017. At March 31, 2015, the amount of outstanding borrowing under the Securitization Agreement was $295 million. Amounts borrowed under the Securitization Agreement could fluctuate monthly based on the Company’s funding requirements and the level of qualified trade receivables available to collateralize the Securitization Agreement. The Securitization Agreement contains customary events of termination, including standard cross-default provisions with respect to outstanding debt.

Senior Credit Facility

On November 18, 2014, the Company entered into a $1 billion Amended and Restated Credit Facility (the “Credit Facility”) to amend and restate the previous amended and restated credit agreement dated July 19, 2011. The Credit Facility consists of an $875 million U.S. dollar revolving credit line, with a $100 million letter of credit sublimit and a $75 million swingline sublimit, and a $125 million (U.S. dollar equivalent) multi-currency revolving credit line. The maturity date of the Credit Facility is November 18, 2019. Under the circumstances described in the Credit Facility, the revolving credit line may be increased by an additional $500 million, provided that the multi-currency revolving credit line may not be increased by more than an additional $50 million.

As of March 31, 2015, the Company had $48 million of borrowings under the Credit Facility, all of which were under the multi-currency revolver. There were no borrowings under the U.S. dollar revolver at March 31, 2015. The Company also had outstanding U.S. letters of credit of $51 million issued under the Credit Facility. U.S. dollar revolver borrowings bear interest at the LIBOR plus 125 basis points. The multi-currency revolver bears interest based on a rate of 125 basis points over the Euro currency rate applicable to each foreign currency borrowing. As of March 31, 2015, the average interest rate on the multi-currency revolver was 1.69%. In addition to the borrowing spread of 125 basis points for U.S. dollar and multi-currency revolver borrowings, the Company pays a commitment (or unused) fee on the undrawn portion of the Credit Facility equal to 15 basis points per annum.

At March 31, 2015, the financial covenant of the Credit Facility did not restrict the Company’s ability to borrow on the unused portion of the Credit Facility. The Credit Facility contains customary events of default including, without limitation,

F-24

AIRGAS, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued)

failure to make payments, a cross-default to certain other debt, breaches of covenants, breaches of representations and warranties, certain monetary judgments and bankruptcy and ERISA events. At March 31, 2015, the Company was in compliance with all covenants under all of its debt agreements. In the event of default, repayment of borrowings under the Credit Facility may be accelerated. As of March 31, 2015, $575 million remained available under the Company’s Credit Facility, after giving effect to the borrowings under the commercial paper program backstopped by the Credit Facility, the outstanding U.S. letters of credit and the borrowings under the multi-currency revolver.

The Company also maintains a committed revolving line of credit of up to €8.0 million (U.S. $8.6 million) to fund its operations in France. These revolving credit borrowings are outside of the Company’s Credit Facility. At March 31, 2015, these revolving credit borrowings were €5.8 million (U.S. $6.3 million). The variable interest rates on these revolving credit borrowings are based on the Euro currency rate plus 125 basis points. On December 12, 2014, the Company amended the terms of this revolving credit agreement to reduce the commitment fee and extend the maturity to November 18, 2019.

Senior Notes

The Company’s senior notes consisted of the following:

(In thousands)						Principal
Description	Coupon	Yield	Maturity Date	Semi-annual Interest Payment Dates		March 31, 2015			March 31, 2014
2014 Notes (a)	4.50%	4.527%	09/15/2014	March 15 and September 15		$	—		$	400,000
2015 Notes (b)	3.25%	3.283%	10/01/2015	April 1 and October 1		250,000			250,000
2016 Notes	2.95%	2.980%	06/15/2016	June 15 and December 15		250,000			250,000
2018 Notes	1.65%	1.685%	02/15/2018	February 15 and August 15		325,000			325,000
2020 Notes	2.375%	2.392%	02/15/2020	February 15 and August 15		275,000			275,000
2022 Notes	2.90%	2.913%	11/15/2022	May 15 and November 15		250,000			250,000
2024 Notes (c)	3.65%	3.673%	07/15/2024	January 15 and July 15		300,000			—
						1,650,000			1,750,000
				Less: unamortized discount		(1,392		)	(1,226		)
					Senior notes, net	$	1,648,608		$	1,748,774

____________________

^(a)  The 2014 Notes were repaid by the Company in September 2014.

^(b)  The 2015 Notes are included within the “Current portion of long-term debt” line item on the Company’s consolidated balance sheet based on the maturity date.

^(c)  On June 17, 2014, the Company issued the 2024 Notes. The net proceeds from the sale of the 2024 Notes were used for general corporate purposes, including to fund acquisitions and repay indebtedness under the Company’s commercial paper program. Interest payments on the 2024 Notes commenced on January 15, 2015.

The 2015, 2016, 2018, 2020, 2022 and 2024 Notes (collectively, the “Senior Notes”) contain covenants that could restrict the incurrence of liens and limit sale and leaseback transactions. Additionally, the Company has the option to redeem the Senior Notes prior to their maturity, in whole or in part, at 100% of the principal plus any accrued but unpaid interest and applicable make-whole payments.

Debt Extinguishment Charge

On October 2, 2013, the Company redeemed its $215 million7.125% senior subordinated notes originally due to mature on October 1, 2018 in full at a price of 103.563%. A loss on the early extinguishment of debt of $9.1 million was recognized during the year ended March 31, 2014 related to the redemption premium and the write-off of unamortized debt issuance costs.

Aggregate Long-term Debt Maturities

The aggregate maturities of long-term debt at March 31, 2015 are as follows:

F-25

AIRGAS, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued)

(In thousands)	Debt Maturities  (a)
Years Ending March 31,
2016	$	250,147
2017	250,311
2018	620,095
2019	—
2020	329,610
Thereafter	550,000
	$	2,000,163

____________________

^(a)  Outstanding borrowings under the Securitization Agreement at March 31, 2015 are reflected as maturing at the agreement’s expiration in December 2017.

The Senior Notes are reflected in the debt maturity schedule at their maturity values rather than their carrying values, which are net of aggregate discounts of $1.4 million at March 31, 2015.

(10)DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES

Cash Flow Hedges

In anticipation of the issuance of the 2015 Notes, the Company entered into a treasury rate lock agreement in July 2010 with a notional amount of $100 million that matured in September 2010. The treasury rate lock agreement was designated as a cash flow hedge of the semi-annual interest payments associated with the forecasted issuance of the 2015 Notes. When the treasury rate lock agreement matured, the Company realized a loss of $2.6 million ($1.6 million after tax) which was reported as a component within accumulated other comprehensive income (“AOCI”) and is being reclassified into earnings over the term of the 2015 Notes. For the years ended March 31, 2015, 2014 and 2013, $517 thousand of the loss on the treasury rate lock was reclassified to interest expense during each period (see Note 12 for details). At March 31, 2015, the remaining estimated loss recorded in AOCI on the treasury rate lock agreement was not material, and will be reclassified into earnings through the maturity date of the 2015 Notes in October 2015.

Fair Value Hedges

The Company previously had five variable interest rate swap agreements outstanding with a notional amount of $300 million, which were designated as fair value hedges. These variable interest rates swaps were used to effectively convert the Company’s $300 million of fixed rate 2.85% senior notes (the “2013 Notes”) to variable rate debt. The swap agreements matured on October 1, 2013, coinciding with the maturity date of the Company’s 2013 Notes. For these derivative instruments designated as fair value hedges, the Company recorded the gain or loss on the derivatives (interest rate swaps) as well as the offsetting gain or loss on the hedged item attributable to the hedged risk (the 2013 Notes) in interest expense in the consolidated statements of earnings for the respective years. The net gain or loss recorded in earnings as a result of hedge ineffectiveness related to the designated fair value hedges was immaterial for the years ended March 31, 2014 and 2013.

Tabular Disclosure

There were no outstanding derivative instruments on the Company’s consolidated balance sheets at March 31, 2015 or 2014, nor any derivative instruments used by the Company during the year ended March 31, 2015. The following table illustrates the effect of derivative instruments in fair value hedging relationships on the Company’s earnings. See Note 12 for the tabular presentation of derivative instruments in cash flow hedging relationships related to the treasury rate lock agreement.

Effect of Derivative Instruments in Fair Value Hedging Relationships on Earnings

	Location of Gain (Loss) Recognized in Pre-tax Income	Amount of Gain (Loss) Recognized in Pre-Tax Income
(In thousands)		Years Ended March 31,
Derivatives in Fair Value Hedging Relationships		2014			2013
Change in fair value of variable interest rate swaps	Interest expense, net	$	(2,490	)	$	(4,244	)
Change in carrying value of 2013 Notes	Interest expense, net	2,496			4,273
Net effect	Interest expense, net	$	6		$	29

F-26

AIRGAS, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued)

(11)FAIR VALUE MEASUREMENTS

Fair value is defined as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. Assets and liabilities recorded at fair value are classified based upon the level of judgment associated with the inputs used to measure their fair value. The hierarchical levels related to the subjectivity of the valuation inputs are defined as follows:

• Level 1 inputs are quoted prices (unadjusted) in active markets for identical assets or liabilities at the measurement date.

• Level 2 inputs are inputs, other than quoted prices included within Level 1, that are observable, directly or indirectly through corroboration with observable market data at the measurement date.

• Level 3 inputs are unobservable inputs that reflect management’s best estimate of the assumptions (including assumptions about risk) that market participants would use in pricing the asset or liability at the measurement date.

The carrying value of cash, trade receivables, other current receivables, trade payables and other current liabilities (e.g., deposit liabilities, cash overdrafts, etc.) approximates fair value based on the short-term maturity of these financial instruments.

Assets and Liabilities Measured at Fair Value on a Recurring Basis

Assets and liabilities measured at fair value on a recurring basis at March 31, 2015 and 2014 are categorized in the tables below based on the lowest level of significant input to the valuation. During the periods presented, there were no transfers between fair value hierarchical levels.

	Balance at		Quoted prices in active markets Level 1		Significant other observable inputs Level 2		Significant unobservable inputs Level 3
(In thousands)	March 31, 2015
Assets:
Deferred compensation plan assets	$	16,288	$	16,288	$	—	$	—
Liabilities:
Deferred compensation plan liabilities	$	16,288	$	16,288	$	—	$	—

	Balance at		Quoted prices in active markets Level 1		Significant other observable inputs Level 2		Significant unobservable inputs Level 3
(In thousands)	March 31, 2014
Assets:
Deferred compensation plan assets	$	16,387	$	16,387	$	—	$	—
Liabilities:
Deferred compensation plan liabilities	$	16,387	$	16,387	$	—	$	—

The following is a general description of the valuation methodologies used for financial assets and liabilities measured at fair value:

Deferred compensation plan assets and corresponding liabilities — The Company’s deferred compensation plan assets consist of open-ended mutual funds (Level 1) and are included within other non-current assets on the consolidated balance sheets. The Company’s deferred compensation plan liabilities are equal to the plan’s assets and are included within other non-current liabilities on the consolidated balance sheets. Gains or losses on the deferred compensation plan assets are recognized as other income, net, while gains or losses on the deferred compensation plan liabilities are recognized as compensation expense in the consolidated statements of earnings. See Note 18 for additional information on the Company’s deferred compensation plan.

Assets and Liabilities Measured at Fair Value on a Nonrecurring Basis

Certain assets and liabilities are measured at fair value on a nonrecurring basis in periods subsequent to initial recognition. Assets measured at fair value on a nonrecurring basis during the year ended March 31, 2013 are categorized in the table below based on the lowest level of significant input to the valuation. Other than these remeasured assets, there were no assets or liabilities measured at fair value on a nonrecurring basis during the years ended March 31, 2015, 2014 and 2013.

F-27

AIRGAS, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued)

	Quoted prices in active markets Level 1		Significant other observable inputs Level 2		Significant unobservable inputs Level 3		Total losses (year ended March 31, 2013
(In thousands)
Assets:
Other intangible assets	$	—	$	—	$	535	$	1,729

In June 2012, the Company re-evaluated the economic viability of a small hospital piping construction business (see Note 7). As a result of an impairment analysis performed on the long-lived assets at this reporting unit, the Company recorded a charge of $1.7 million related to certain of the intangible assets associated with this business during the year ended March 31, 2013, which was reflected in the “Restructuring and other special charges, net” line item of the Company’s consolidated statement of earnings for the year ended March 31, 2013. The Company used a variation of the income approach, namely the excess earnings method, to estimate the fair value of the intangible assets associated with the business. Under this approach, an intangible asset’s fair value is estimated to be the present value of the incremental after-tax cash flows attributable solely to the intangible asset over its remaining useful life. Key inputs in this model include the cash flow forecast, discount rate, contributory asset charges and tax amortization benefits. As of the evaluation date, the remeasured other intangible assets related to this reporting unit totaled $0.5 million.

Fair Value of Debt

The carrying value of debt, which is reported on the Company’s consolidated balance sheets, generally reflects the cash proceeds received upon its issuance, net of subsequent repayments, plus the impact of the Company’s fair value hedges as applicable. The fair values of the fixed rate notes disclosed in the following table were determined based on quoted prices from the broker/dealer market, observable market inputs for similarly termed treasury notes adjusted for the Company’s credit spread and inputs management believes a market participant would use in determining imputed interest for obligations without a stated interest rate (Level 2). The fair values of the revolving credit borrowings, securitized receivables and commercial paper approximate their carrying values (see Note 9).

	Carrying Value at	Fair Value at	Carrying Value at	Fair Value at
(In thousands)	March 31, 2015	March 31, 2015	March 31, 2014	March 31, 2014
2014 Notes	—	—	399,952	407,092
2015 Notes	249,962	252,520	249,887	258,630
2016 Notes	249,918	254,953	249,848	259,257
2018 Notes	324,688	323,921	324,579	319,098
2020 Notes	274,791	274,821	274,748	265,600
2022 Notes	249,787	249,028	249,760	233,230
2024 Notes	299,462	310,500	—	—

(12)STOCKHOLDERS’ EQUITY

Common Stock

The Company is authorized to issue up to 200 million shares of common stock with a par value of $0.01 per share. At March 31, 2015, the number of shares of common stock outstanding was 75.4 million, excluding 12.2 million shares of common stock held as treasury stock. At March 31, 2014, the number of shares of common stock outstanding was 74.1 million, excluding 13.3 million shares of common stock held as treasury stock.

Preferred Stock and Redeemable Preferred Stock

The Company is authorized to issue up to 20 million shares of preferred stock. Of the 20 million shares authorized, 200 thousand shares have been designated as Series A Junior Participating Preferred Stock, 200 thousand shares have been designated as Series B Junior Participating Preferred Stock and 200 thousand shares have been designated as Series C Junior Participating Preferred Stock (see Stockholder Rights Plan below). At March 31, 2015 and 2014, no shares of the preferred stock were issued or outstanding. The preferred stock may be issued from time to time by the Company’s Board of Directors in one or more series. The Board of Directors is authorized to fix the dividend rights and terms, conversion rights, voting rights, rights and terms of redemption, liquidation preferences, and any other rights, preferences, privileges and restrictions of any series of preferred stock, and the number of shares constituting such series and designation thereof.

F-28

AIRGAS, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued)

Additionally, the Company is authorized to issue 30 thousand shares of redeemable preferred stock. At March 31, 2015 and 2014, no shares of redeemable preferred stock were issued or outstanding.

Dividends

The Company paid its stockholders regular quarterly cash dividends of $0.55, $0.48 and $0.40 per share at the end of each of its fiscal quarters during the years ended March 31, 2015, 2014 and 2013, respectively. On April 7, 2015, the Company’s Board of Directors declared a cash dividend of $0.60 per share, which is payable on June 30, 2015 to the stockholders of record as of June 15, 2015. Future dividend declarations and associated amounts paid will depend upon the Company’s earnings, financial condition, loan covenants, capital requirements and other factors deemed relevant by management and the Company’s Board of Directors.

Stockholder Rights Plan

Effective May 8, 2007, the Company’s Board of Directors adopted a stockholder rights plan (the “2007 Rights Plan”). Pursuant to the 2007 Rights Plan, the Board of Directors declared a dividend distribution of one right for each share of common stock. Each right entitles the holder to purchase from the Company one ten-thousandth of a share of Series C Junior Participating Preferred Stock at an initial exercise price of $230 per share. The 2007 Rights Plan is intended to assure that all of the Company’s stockholders receive fair and equal treatment in the event of any proposed takeover of the Company and to protect stockholders’ interests in the event the Company is confronted with partial tender offers or other coercive or unfair takeover tactics.

Rights become exercisable after ten days following the acquisition by a person or group of 15% (or 20% in the case of Peter McCausland and certain of his affiliates) or more of the Company’s outstanding common stock, or ten business days (or later if determined by the Board of Directors in accordance with the plan) after the announcement of a tender offer or exchange offer to acquire 15% (or 20% in the case of Peter McCausland and certain of his affiliates) or more of the outstanding common stock. If such a person or group acquires 15% or more (or 20% or more, as the case may be) of the common stock, each right (other than such person’s or group’s rights, which will become void) will entitle the holder to purchase, at the exercise price, common stock having a market value equal to twice the exercise price. In certain circumstances, the rights may be redeemed by the Company at an initial redemption price of $0.0001 per right. If not redeemed, the rights will expire on May 8, 2017.

Stock Repurchase Program

In October 2012, the Company announced a share repurchase program, with authorization to repurchase up to $600 million of its common stock. By March 31, 2013, 6.3 million shares had been repurchased for approximately $600 million.

Comprehensive Income

The Company’s comprehensive income was $353 million, $347 million and $340 million for the years ended March 31, 2015, 2014 and 2013, respectively. Comprehensive income consists of net earnings, foreign currency translation adjustments, net gain or loss on derivative instruments and the net tax expense or benefit of other comprehensive income items. Net tax expense or benefit of comprehensive income items pertains to the Company’s derivative instruments only, as foreign currency translation adjustments relate to permanent investments in foreign subsidiaries. The net gain or loss on derivative instruments reflects valuation adjustments for changes in interest rates, as well as cash settlements with the counterparties and reclassification adjustments to income. See Note 10 for further information on derivative instruments. The following table presents the gross and net changes in the balances within each component of AOCI for each of the years in the three-year period ended March 31, 2015.

F-29

AIRGAS, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued)

(In thousands)	Foreign Currency Translation Adjustments			Treasury Rate Lock Agreement			Total Accumulated Other Comprehensive Income (Loss)
Balance at March 31, 2012	$	6,527		$	(1,141	)	$	5,386
Other comprehensive income (loss) before reclassifications	(1,274		)	—			(1,274		)
Amounts reclassified from AOCI (a)	—			517			517
Tax effect of other comprehensive income items	—			(191		)	(191		)
Other comprehensive income (loss), net of tax	(1,274		)	326			(948		)
Balance at March 31, 2013	5,253			(815		)	4,438
Other comprehensive income (loss) before reclassifications	(4,235		)	—			(4,235		)
Amounts reclassified from AOCI (a)	—			517			517
Tax effect of other comprehensive income items	—			(191		)	(191		)
Other comprehensive income (loss), net of tax	(4,235		)	326			(3,909		)
Balance at March 31, 2014	1,018			(489		)	529
Other comprehensive income (loss) before reclassifications	(15,708		)	—			(15,708		)
Amounts reclassified from AOCI (a)	—			517			517
Tax effect of other comprehensive income items	—			(191		)	(191		)
Other comprehensive income (loss), net of tax	(15,708		)	326			(15,382		)
Balance at March 31, 2015	$	(14,690	)	$	(163	)	$	(14,853	)

___________________

^(a)  The reclassifications out of AOCI were associated with a loss on a treasury rate lock agreement from July 2010 related to the issuance of the Company’s 2015 Notes, which is being reclassified into earnings (interest expense) over the term of the 2015 Notes. The effects on the respective line items of the consolidated statements of earnings impacted by the reclassifications were not material for the twelve months endedMarch 31, 2015, 2014 and 2013.

(13)STOCK-BASED COMPENSATION

The Company recognizes stock-based compensation expense for its equity incentive plan and Employee Stock Purchase Plan. The following table summarizes stock-based compensation expense recognized by the Company in each of the years in the three-year period ended March 31, 2015.

	Years Ended March 31,
(In thousands)	2015			2014			2013
Stock-based compensation expense related to:
Equity Incentive Plan	$	25,935		$	24,892		$	22,969
Employee Stock Purchase Plan - options to purchase stock	4,092			4,069			4,084
	30,027			28,961			27,053
Tax benefit	(10,624		)	(10,392		)	(9,338		)
Stock-based compensation expense, net of tax	$	19,403		$	18,569		$	17,715

2006 Equity Incentive Plan

On August 14, 2012, the Company’s stockholders approved the Second Amended and Restated 2006 Equity Incentive Plan (the “2006 Equity Plan”), which included, among other things, a 4.0 million increase in the maximum number of shares available for issuance under the plan. At March 31, 2015, a total of 11.8 million shares were authorized under the 2006 Equity Plan, as amended, for grants of stock options, stock appreciation rights, restricted stock and restricted stock units to employees, directors and consultants of the Company, of which 3.2 million shares of common stock were available for issuance.

F-30

AIRGAS, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued)

Stock options granted prior to April 1, 2006 vest 25% annually and have a maximum term of ten years. Stock options granted subsequent to April 1, 2006 also vest 25% annually and have a maximum term of eight years. Stock options granted to directors vest and are fully exercisable immediately upon being granted.

Fair Value

The Company utilizes the Black-Scholes option pricing model to determine the fair value of stock options. The weighted-average grant date fair value of stock options granted during the fiscal years ended March 31, 2015, 2014 and 2013 was $28.72, $32.41 and $29.40, respectively. The following assumptions were used by the Company in valuing the stock options grants issued in each fiscal year:

	Fiscal 2015		Fiscal 2014		Fiscal 2013
Expected volatility	34.3	%	40.5	%	40.1	%
Expected dividend yield	2.06	%	1.95	%	1.83	%
Expected term	5.6 years		5.6 years		5.7 years
Risk-free interest rate	1.7	%	1.0	%	0.9	%

The expected volatility assumption used in valuing stock options was determined based on anticipated changes in the underlying stock price over the expected term using historical daily changes of the Company’s closing stock price. The expected dividend yield was based on the Company’s history and expectation of future dividend payouts. The expected term represents the period of time that the options are expected to be outstanding prior to exercise or forfeiture. The expected term was determined based on historical exercise patterns. The risk-free interest rate was based on U.S. Treasury rates in effect at the time of grant commensurate with the expected term.

Summary of Stock Option Activity

The following table summarizes the stock option activity during the three years ended March 31, 2015:

	Number of Stock Options		Weighted-Average Exercise Price		Aggregate Intrinsic Value (In thousands)
Outstanding at March 31, 2012	6,584,482		$	47.08
Granted	966,300		$	91.52
Exercised	(2,423,265	)	$	36.67
Forfeited	(75,501	)	$	67.86
Outstanding at March 31, 2013	5,052,016		$	60.26	$	196,527
Granted	959,700		$	102.96
Exercised	(817,016	)	$	47.38
Forfeited	(90,276	)	$	85.04
Outstanding at March 31, 2014	5,104,424		$	69.91	$	186,816
Granted	977,500		$	104.80
Exercised	(1,034,325	)	$	53.49
Forfeited	(73,929	)	$	98.24
Outstanding at March 31, 2015	4,973,670		$	79.76	$	131,135
Vested or expected to vest at March 31, 2015	4,959,195		$	79.69	$	131,100
Exercisable at March 31, 2015	2,839,584		$	65.87	$	114,318

The aggregate intrinsic value represents the difference between the Company’s closing stock price on the last trading day of each fiscal year and the exercise price of in-the-money stock options multiplied by the number of stock options outstanding or exercisable as of that date. The total intrinsic value of stock options exercised during the years ended March 31, 2015, 2014 and 2013 was $60.8 million, $47.0 million and $125.1 million, respectively. The weighted-average remaining contractual term of stock options outstanding as of March 31, 2015 was 4.6 years. Common stock to be issued in conjunction with future stock option exercises will be obtained from either new shares or shares from treasury stock.

As of March 31, 2015, $41.9 million of unrecognized non-cash compensation expense related to non-vested stock options is expected to be recognized over a weighted-average vesting period of 1.7 years.

F-31

AIRGAS, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued)

Employee Stock Purchase Plan

The Company’s Employee Stock Purchase Plan (the “ESPP”) encourages and assists employees in acquiring an equity interest in the Company. As of March 31, 2015, the ESPP was authorized to issue up to 5.5 million shares of Company common stock, of which 1.1 million shares were available for issuance at March 31, 2015, 54,114 shares of which were issued on April 1, 2015.

Under the terms of the ESPP, eligible employees may elect to have up to 15% of their annual gross earnings withheld to purchase common stock at 85% of the market value. Employee purchases are limited in any calendar year to an aggregate market value of $25 thousand. Market value under the ESPP is defined as either the closing share price on the New York Stock Exchange as of an employee’s enrollment date or the closing price on the first business day of a fiscal quarter when the shares are purchased, whichever is lower. An employee may lock-in a purchase price for up to 12 months. The ESPP effectively resets at the beginning of each fiscal year at which time employees are re-enrolled in the plan and a new 12-month purchase price is established. The ESPP is designed to comply with the requirements of Sections 421 and 423 of the Internal Revenue Code.

Fair Value

Compensation expense is measured based on the fair value of the employees’ option to purchase shares of common stock at the grant date and is recognized over the future periods in which the related employee service is rendered. The fair value per share of employee options to purchase shares under the ESPP was $20.44, $19.27 and $16.73 for the years ended March 31, 2015, 2014 and 2013, respectively. The fair value of the employees’ option to purchase shares of common stock was estimated using the Black-Scholes model. The following assumptions were used by the Company in valuing the employees’ option to purchase shares of common stock under the ESPP:

	Fiscal 2015		Fiscal 2014		Fiscal 2013
Expected volatility	17.1	%	19.5	%	23.2	%
Expected dividend yield	2.07	%	1.96	%	2.19	%
Expected term	3 to 9 months		3 to 9 months		3 to 6 months
Risk-free interest rate	0.06	%	0.08	%	0.10	%

ESPP - Purchase Option Activity

The following table summarizes the activity of the ESPP during the three years ended March 31, 2015:

	Number of Purchase Options		Weighted-Average Exercise Price		Aggregate Intrinsic Value (In thousands)
Outstanding at March 31, 2012	79,208		$	51.61
Granted	244,122		$	70.74
Exercised	(261,193	)	$	65.42
Outstanding at March 31, 2013	62,137		$	68.74	$	1,890
Granted	211,093		$	82.88
Exercised	(218,109	)	$	79.38
Outstanding at March 31, 2014	55,121		$	80.77	$	1,419
Granted	200,030		$	90.82
Exercised	(201,037	)	$	89.24
Outstanding at March 31, 2015	54,114		$	86.47	$	1,063

(14)INTEREST EXPENSE, NET

Interest expense, net, consists of:

	Years Ended March 31,
(In thousands)	2015			2014			2013
Interest expense	$	64,191		$	75,361		$	70,077
Interest and finance charge income	(1,959		)	(1,663		)	(2,583		)
	$	62,232		$	73,698		$	67,494

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AIRGAS, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued)

(15)EARNINGS PER SHARE

Basic earnings per share is calculated by dividing net earnings by the weighted average number of shares of the Company’s common stock outstanding during the period. Outstanding shares consist of issued shares less treasury stock. Diluted earnings per share is calculated by dividing net earnings by the weighted average common shares outstanding adjusted for the dilutive effect of common stock equivalents related to stock options and the Company’s ESPP.

Outstanding stock options that are anti-dilutive are excluded from the Company’s diluted earnings per share computation. There were approximately 1.7 million, 1.5 million and 1.3 million shares covered by outstanding stock options that were not dilutive for the years ended March 31, 2015, 2014 and 2013, respectively.

The table below presents the computation of basic and diluted weighted average common shares outstanding for the years ended March 31, 2015, 2014 and 2013:

(In thousands, except per share amounts)	Years Ended March 31,
Basic Earnings per Share Computation	2015		2014		2013
Numerator:
Net earnings	$	368,086	$	350,784	$	340,874
Denominator:
Basic shares outstanding	74,702		73,623		76,651
Basic earnings per share	$	4.93	$	4.76	$	4.45
(In thousands, except per share amounts)	Years Ended March 31,
Diluted Earnings per Share Computation	2015		2014		2013
Numerator:
Net earnings	$	368,086	$	350,784	$	340,874
Denominator:
Basic shares outstanding	74,702		73,623		76,651
Incremental shares from assumed exercises and conversions:
Stock options and options under the Employee Stock Purchase Plan	1,149		1,287		1,656
Diluted shares outstanding	75,851		74,910		78,307
Diluted earnings per share	$	4.85	$	4.68	$	4.35

(16)LEASES

The Company leases certain facilities, fleet vehicles and equipment under long-term operating leases with varying terms. Most leases contain renewal options and in some instances, purchase options. Rentals under these operating leases for the years ended March 31, 2015, 2014 and 2013 totaled approximately $121 million, $110 million and $106 million, respectively. Certain operating facilities are leased at market rates from employees of the Company who were previous owners of businesses acquired. Outstanding capital lease obligations and the related capital assets are not material to the consolidated balance sheets at March 31, 2015 and 2014. In connection with the fleet vehicle operating leases, the Company guarantees a residual value of $29 million, representing approximately 10.2% of the original cost of the equipment currently under lease.

At March 31, 2015, future minimum lease payments under non-cancelable operating leases were as follows:

(In thousands)
Years Ending March 31,
2016	$	104,273
2017	89,827
2018	74,021
2019	53,640
2020	34,677
Thereafter	52,182
	$	408,620

F-33

AIRGAS, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued)

(17)COMMITMENTS AND CONTINGENCIES

Litigation

The Company is involved in various legal and regulatory proceedings that have arisen in the ordinary course of business and have not been fully adjudicated. These actions, when ultimately concluded and determined, will not, in the opinion of management, have a material adverse effect upon the Company’s consolidated financial condition, results of operations or liquidity.

Insurance Coverage

The Company has established insurance programs to cover workers’ compensation, business automobile and general liability claims. During fiscal 2015, 2014 and 2013, these programs had deductible limits of $1 million per occurrence. For fiscal 2016, the deductible limits are expected to remain at $1 million per occurrence. The Company believes its business insurance reserves are adequate (see Note 8). The Company accrues estimated losses using actuarial models and assumptions based on historical loss experience. The nature of the Company’s business may subject it to product and general liability lawsuits. To the extent that the Company is subject to claims that exceed its liability insurance coverage, such suits could have a material adverse effect on the Company’s financial position, results of operations or liquidity.

The Company maintains a self-insured health benefits plan, which provides medical benefits to employees electing coverage under the plan. The Company maintains a reserve for incurred but not reported medical claims and claim development. The reserve is an estimate based on historical experience and other assumptions, some of which are subjective. The Company adjusts its self-insured medical benefits reserve as the Company’s loss experience changes due to medical inflation, changes in the number of plan participants and an aging employee base. The Company’s self-insured medical benefits reserve was $13.8 million and $12.9 million at March 31, 2015 and 2014, respectively.

Supply Agreements

The Company purchases bulk quantities of industrial gases under take-or-pay supply agreements. The Company is a party to take-or-pay supply agreements under which Air Productsand Chemicals, Inc. (“Air Products”)will supply the Company with bulk nitrogen, oxygen, argon, hydrogen and helium. The Company is committed to purchase a minimum of approximately$66 millionin bulk gases within the next fiscal year under the Air Products supply agreements. The agreements expire at various dates through2020. The Company also has take-or-pay supply agreements withThe Linde Group AGto purchase oxygen, nitrogen, argon and helium. The agreements expire at various dates through2025and represent approximately$99 million in minimum bulk gas purchases for the next fiscal year. Additionally, the Company has take-or-pay supply agreements to purchase oxygen, nitrogen, argon, helium and ammonia from other major producers. Minimum purchases under these contracts for the next fiscal year are approximately$36 millionand they expire at various dates through2024. The Company also purchases liquid carbon dioxide under take-or-pay supply agreements with twelvesuppliers that expire at various dates through2044and represent minimum purchases of approximately$20 millionfor the next fiscal year. The level of annual purchase commitments under the Company’s supply agreements beyond the next fiscal year vary based on the expiration of agreements at different dates in the future, among other factors.

The Company’s annual purchase commitments under all of its supply agreements reflect estimates based on fiscal2015purchases. The Company’s supply agreements contain periodic pricing adjustments, most of which are based on certain economic indices and market analyses. The Company believes the minimum product purchases under the agreements are within the Company’s normal product purchases. Actual purchases in future periods under the supply agreements could differ materially from those presented due to fluctuations in demand requirements related to varying sales levels as well as changes in economic conditions.If a supply agreement with a major supplier of gases or other raw materials was terminated, the Company would attempt to locate alternative sources of supply to meet customer requirements, including utilizing excess internal production capacity for atmospheric gases. The Company purchases hardgoods from major manufacturers and suppliers. For certain products, the Company has negotiated national purchasing arrangements. The Company believes that if an arrangement with any supplier of hardgoods was terminated, it would be able to negotiate comparable alternative supply arrangements.

At March 31, 2015, future commitments under take-or-pay supply agreements were as follows:

F-34

AIRGAS, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued)

(In thousands)
Years Ending March 31,
2016	$	221,228
2017	218,840
2018	175,250
2019	141,722
2020	97,170
Thereafter	275,656
	$	1,129,866

Construction Commitments

Construction commitments of approximately $83 million at March 31, 2015 represent outstanding commitments to complete authorized construction projects. At March 31, 2015, the Company had long-term agreements with two customers to construct on-site air separation units. The units will be located in Calvert City, KY and Tuscaloosa, AL.

Letters of Credit

At March 31, 2015, the Company had outstanding letters of credit of $51 million. Letters of credit are guarantees of payment to third parties. The Company’s letters of credit principally back obligations associated with the Company’s deductible on workers’ compensation, business automobile and general liability claims. The letters of credit are supported by the Company’s Credit Facility.

(18)BENEFIT PLANS

The Company has a defined contribution 401(k) plan (the “401(k) plan”) covering substantially all full-time employees. Under the terms of the 401(k) plan, the Company makes matching contributions of up to two percent of participant wages. Amounts expensed under the 401(k) plan for fiscal 2015, 2014 and 2013 were $13.0 million, $12.3 million and $11.7 million, respectively.

The Company has a deferred compensation plan that is a non-qualified plan. The deferred compensation plan allows eligible employees and non-employee directors, who elect to participate in the plan, to defer the receipt of taxable compensation. Participants may set aside up to a maximum of 75% of their base salary and up to a maximum of 100% of their bonus compensation or directors’ fees in tax-deferred investments. The Company’s deferred compensation plan liabilities are funded through an irrevocable rabbi trust. The assets of the trust, which consist of open-ended mutual funds, cannot be reached by the Company or its creditors except in the event of the Company’s insolvency or bankruptcy. Assets held in the rabbi trust were $16.3 million and $16.4 million at March 31, 2015 and 2014, respectively, and are included within other non-current assets on the consolidated balance sheets. The Company’s deferred compensation plan liabilities were $16.3 million and $16.4 million at March 31, 2015 and 2014, respectively, and are included within other non-current liabilities on the consolidated balance sheets. Gains or losses on the deferred compensation plan assets are recognized as other income, net, while gains or losses on the deferred compensation plan liabilities are recognized as compensation expense in the consolidated statements of earnings.

(19)RELATED PARTIES

The Company purchases and sells goods and services in the ordinary course of business with certain corporations in which some of its directors are officers or directors. The Company also leases certain operating facilities from employees who were previous owners of businesses acquired. Payments made to related parties for fiscal 2015, 2014 and 2013 were $4.2 million, $4.1 million and $3.9 million, respectively. Amounts paid to related parties represented values considered fair and reasonable and reflective of arm’s length transactions.

F-35

AIRGAS, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued)

(20)SUPPLEMENTAL CASH FLOW INFORMATION

Cash Paid for Interest and Income Taxes

Cash paid for interest and income taxes was as follows:

	Years Ended March 31,
(In thousands)	2015		2014		2013
Interest paid	$	62,986	$	86,479	$	66,569
Income taxes, net of refunds	194,161		164,482		133,951

Noncash Investing and Financing Activities

Liabilities assumed and stock issued as a result of acquisitions were as follows:

	Years Ended March 31,
(In thousands)	2015			2014			2013
Fair value of assets acquired	$	66,626		$	218,413		$	115,402
Net cash paid for acquisitions (a)	(51,827		)	(205,370		)	(97,521		)
Stock issued for acquisition (b)	(4,458		)	—			—
Liabilities assumed	$	10,341		$	13,043		$	17,881

____________________

^(a)  Includes cash paid, net of cash acquired, for current year acquisitions as well as payments for the settlement of holdback liabilities and contingent consideration arrangements associated with prior year acquisitions.

^(b)  Represents shares of Airgas, Inc. common stock issued in connection with a single acquisition – see Note 3 for further information.

(21)SUMMARY BY BUSINESS SEGMENT

The Company identifies its businesses as separate operating segments for reporting purposes based on the review of discrete financial results for each of the businesses by the Company’s chief operating decision maker for performance assessment and resource allocation purposes. The Company aggregates its operating segments, based on products and services, into two business segments, Distribution and All Other Operations. The Distribution business segment represents the Company’s only reportable segment under GAAP, while the All Other Operations business segment represents the aggregation of all other operating segments of the Company not considered reportable under GAAP. The Distribution business segment consists of 21 operating segments, including fourteen regional gas and hardgoods distribution businesses, four gas companies that either produce or market gas products sold primarily through the Company’s regional distribution businesses, two companies that sell or provide safety-related products and services, and the Company’s rental welder business. The aggregation of the operating segments that form the Distribution business segment is based on the segment’s foundation as a national integrated distribution business providing a broad array of gas products and supporting services offered in all modes of gas distribution, from large bulk quantities to smaller quantities in cylinder or packaged form, as well as a broad complementary hardgoods product line. Although there have been minor internal organizational changes in certain operating segments that comprise the Distribution business segment, there were no changes to this reportable segment from the prior year.

The Distribution business segment’s principal products include industrial, medical and specialty gases sold in packaged and bulk quantities, as well as hardgoods. The Company’s air separation facilities and national specialty gas labs primarily produce gases that are sold by the regional distribution businesses. Gas sales include nitrogen, oxygen, argon, helium, hydrogen, welding and fuel gases such as acetylene, propylene and propane, carbon dioxide, nitrous oxide, ultra high purity grades, special application blends and process chemicals. Business units in the Distribution business segment also recognize rental revenue, derived from gas cylinders, cryogenic liquid containers, bulk storage tanks, tube trailers and welding and welding related equipment. Gas and rent represented 59%, 60% and 59% of the Distribution business segment’s sales in fiscal years 2015, 2014 and 2013, respectively. Hardgoods consist of welding consumables and equipment, safety products, construction supplies, and maintenance, repair and operating supplies. Hardgoods sales represented 41%, 40% and 41% of the Distribution business segment’s sales in fiscal years 2015, 2014 and 2013, respectively. The Distribution business segment accounted for approximately 90% of consolidated sales in each of the fiscal years 2015, 2014 and 2013.

The All Other Operations business segment consists of five operating segments, all of which primarily manufacture and/or distribute single gas product lines (carbon dioxide, dry ice, nitrous oxide, ammonia and refrigerant gases). The operating segments reflected in the All Other Operations business segment individually do not meet the thresholds to be reported as separate reportable segments. Elimination entries represent intercompany sales from the Company’s All Other Operations business segment to its Distribution business segment.

F-36

AIRGAS, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued)

The Company’s operations are predominantly in the United States. While the Company does conduct operations outside of the United Statesin Canada, Mexico, Russia, Dubai and several European countries, revenues from foreign countries represent less than2%of the Company’s net sales. Revenues derived from foreign countries, based on the point of sale, were $93 million, $88 million and $87 million in the fiscal years ended March 31, 2015, 2014 and 2013, respectively. Long-lived assets attributable to the Company’s foreign operations represent less than 5% of the consolidated total long-lived assets of the Company and were $143 million, $148 million and $133 million at March 31, 2015, 2014 and 2013, respectively. Long-lived assets primarily consist of plant and equipment, net. The Company’s customer base is diverse with its largest customer accounting for less than 1% of total net sales.

Business segment information for the Company’s Distribution and All Other Operations business segments is presented in the following tables for the years ended March 31, 2015, 2014 and 2013. The accounting policies of the business segments are the same as those described in the Summary of Significant Accounting Policies (Note 1). Although corporate operating expenses are generally allocated to each business segment based on sales dollars, the Company reports expenses (excluding depreciation) related to the implementation of its SAP system under selling, distribution and administrative expenses in the “Eliminations and Other” column. Additionally, the Company’s restructuring and other special charges, net, are not allocated to the Company’s business segments, and are also reflected in the “Eliminations and Other” column. Corporate assets have been allocated to the Distribution business segment, intercompany sales are recorded on the same basis as sales to third parties, and intercompany transactions are eliminated in consolidation. See Note 3 for the impact of acquisitions on the operating results of each business segment. Management utilizes more than one measurement and multiple views of data to measure segment performance and to allocate resources to the segments. However, the predominant measurements are consistent with the Company’s consolidated financial statements and, accordingly, are reported on the same basis in the following tables.

F-37

AIRGAS, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued)

			Year Ended
	March 31, 2015
(In thousands)	Distribution		All Other Ops.		Eliminations and Other			Total
Gas and rent	$	2,823,297	$	556,941	$	(29,219	)	$	3,351,019
Hardgoods	1,950,192		3,681		(7		)	1,953,866
Net sales (a)	4,773,489		560,622		(29,226		)	5,304,885
Cost of products sold (excluding depreciation) (a)	2,092,466		292,635		(29,226		)	2,355,875
Selling, distribution and administrative expenses	1,792,116		186,558		—			1,978,674
Depreciation	272,200		25,510		—			297,710
Amortization	27,373		3,975		—			31,348
Total costs and expenses	4,184,155		508,678		(29,226		)	4,663,607
Operating income	$	589,334	$	51,944	$	—		$	641,278
Assets	$	5,397,535	$	576,075	$	—		$	5,973,610
Capital expenditures	$	438,867	$	29,922	$	—		$	468,789
	Year Ended
	March 31, 2014
(In thousands)	Distribution		All Other Ops.		Eliminations and Other			Total
Gas and rent	$	2,717,272	$	539,954	$	(30,404	)	$	3,226,822
Hardgoods	1,841,518		4,200		(3		)	1,845,715
Net sales (a)	4,558,790		544,154		(30,407		)	5,072,537
Cost of products sold (excluding depreciation) (a)	1,996,065		281,916		(30,407		)	2,247,574
Selling, distribution and administrative expenses	1,705,408		176,289		7,426			1,889,123
Depreciation	252,329		23,132		—			275,461
Amortization	25,512		4,333		—			29,845
Total costs and expenses	3,979,314		485,670		(22,981		)	4,442,003
Operating income	$	579,476	$	58,484	$	(7,426	)	$	630,534
Assets	$	5,222,781	$	570,533	$	—		$	5,793,314
Capital expenditures	$	317,066	$	37,521	$	—		$	354,587
	Year Ended
	March 31, 2013
(In thousands)	Distribution		All Other Ops.		Eliminations and Other			Total
Gas and rent	$	2,577,901	$	587,322	$	(34,201	)	$	3,131,022
Hardgoods	1,820,204		6,276		(5		)	1,826,475
Net sales (a)	4,398,105		593,598		(34,206		)	4,957,497
Cost of products sold (excluding depreciation) (a)	1,958,573		311,200		(34,206		)	2,235,567
Selling, distribution and administrative expenses	1,620,651		174,643		33,230			1,828,524
Restructuring and other special charges, net	—		—		8,089			8,089
Depreciation	240,167		21,455		—			261,622
Amortization	22,297		4,981		—			27,278
Total costs and expenses	3,841,688		512,279		7,113			4,361,080
Operating income	$	556,417	$	81,319	$	(41,319	)	$	596,417
Assets	$	5,047,042	$	571,183	$	—		$	5,618,225
Capital expenditures	$	300,431	$	25,034	$	—		$	325,465

____________________

^(a)  Amounts in the “Eliminations and Other” column represent the elimination of intercompany sales and associated gross profit on sales from the Company’s All Other Operations business segment to its Distribution business segment.

F-38

AIRGAS, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued)

(22)RESTRUCTURING AND OTHER SPECIAL CHARGES, NET

The Company incurred no restructuring and other special charges, including asset impairment charges, for the years ended March 31, 2015 and 2014. The following table presents the components of restructuring and other special charges, net, for the year ended March 31, 2013:

	Year Ended March 31,
(In thousands)	2013
Restructuring costs (benefits), net	$	(2,177	)
Other related costs	8,537
Intangible asset impairment charge	1,729
Total restructuring and other special charges, net	$	8,089

Restructuring Costs (Benefits), Net

In May 2011, the Company announced the alignment of its thentwelveregional distribution companies intofournew divisions, and the consolidation of its regional company accounting and certain administrative functions intofournewly created Business Support Centers (“BSCs”). Additionally, the Company initiated a related change in its legal entity structure on January 1, 2012 whereby each Airgas regional distribution company would merge, once converted to SAP, into a single limited liability company (“LLC”) of which Airgas, Inc. is the sole member. Prior to conversion to SAP, each of the Company’stwelveregional distribution companies operated its own accounting and administrative functions. Enabled by the Company’s conversion to a single information platform across all of its regional distribution businesses as part of the SAP implementation, the restructuring allows Airgas to more effectively utilize its resources across its regional distribution businesses and form an operating structure to leverage the full benefits of its new SAP platform. As a result of the realignment plan, the Company recorded an initial restructuring charge of $13.3 million during the year ended March 31, 2012 for severance benefits expected to be paid under the Airgas, Inc. Severance Pay Plan to employees whose jobs were eliminated as a result of the realignment.

During the year ended March 31, 2013, the Company recorded$2.2 millionin net restructuring benefits. In fiscal 2013, the Company re-evaluated its remaining severance liability related to the divisional realignment and, as a result of this analysis, reduced its severance liability by$3.7 million. The change in estimate was driven by fewer than expected individuals meeting the requirements to receive severance benefits. This reduction was due to both the retention of employees through relocation or acceptance of new positions, as well as former associates who chose not to remain with the Company through their designated separation dates. Offsetting the benefit from the reduction to the severance liability were additional restructuring costs of$1.5 million, primarily related to relocation and other costs.

Restructuring costs related to the plan were not allocated to the Company’s business segments (see Note 21). The activity in the accrued liability balances associated with the restructuring plan was as follows for the years ended March 31, 2015, 2014 and 2013:

(In thousands)	Severance Costs			Facility Exit and Other Costs			Total
Balance at March 31, 2012	$	13,138		$	990		$	14,128
Restructuring charges	—			1,523			1,523
Cash payments	(4,756		)	(2,199		)	(6,955		)
Other adjustments	(3,700		)	—			(3,700		)
Balance at March 31, 2013	$	4,682		$	314		$	4,996
Cash payments and other adjustments	(3,321		)	(237		)	(3,558		)
Balance at March 31, 2014	$	1,361		$	77		$	1,438
Cash payments and other adjustments	(1,361		)	(77		)	(1,438		)
Balance at March 31, 2015	$	—		$	—		$	—

As ofMarch 31, 2013, the divisional alignment was complete and all material costs related to the restructuring had been incurred. The remaining accrued liability balances associated with the restructuring plan at March 31, 2013 were subsequently paid during the years ended March 31, 2014 and 2015.

Other Related Costs

F-39

AIRGAS, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued)

For the year ended March 31, 2013, the Company also incurred $8.5 million of other costs related to the divisional alignment and LLC formation. These costs primarily related to transition staffing for the BSCs, legal costs and other expenses associated with the Company’s organizational and legal entity changes.

Asset Impairment Charge

As a result of an impairment analysis performed on the long-lived assets associated with a reporting unit in the Company’s All Other Operations business segment, the Company recorded a charge of $1.7 million related to certain of the intangible assets associated with this business during the year ended March 31, 2013 – see Note 7 for further information. The charge was not allocated to the Company’s business segments (see Note 21).

(23)SUPPLEMENTARY INFORMATION (UNAUDITED)

The following table summarizes the unaudited results of operations for each quarter of fiscal 2015 and 2014:

(In thousands, except per share amounts)	First		Second		Third		Fourth
2015
Net sales	$	1,313,587	$	1,357,755	$	1,331,820	$	1,301,723
Operating income	155,081		175,781		162,886		147,530
Net earnings	88,852		98,312		93,199		87,723
Basic earnings per share (a)	$	1.20	$	1.32	$	1.25	$	1.17
Diluted earnings per share (a)	$	1.18	$	1.30	$	1.23	$	1.15
2014
Net sales	$	1,279,891	$	1,281,970	$	1,242,846	$	1,267,830
Operating income	156,614		168,769		154,919		150,232
Net earnings (b)	84,686		94,982		82,759		88,357
Basic earnings per share (a)	$	1.16	$	1.29	$	1.12	$	1.19
Diluted earnings per share (a)	$	1.14	$	1.27	$	1.10	$	1.17

____________________

^(a)  Earnings per share calculations for each of the quarters are based on the weighted average number of shares outstanding in each quarter. Therefore, the sum of the quarterly earnings per share does not necessarily equal the full year earnings per share disclosed on the consolidated statements of earnings.

^(b)  Net earnings include the impact of the following non-operating items (after tax):

(In thousands)	First		Second			Third		Fourth
2014
Loss on the extinguishment of debt (Note 9)	$	—	$	—		$	5,646	$	—
State income tax benefits (c)	—		(1,493		)	—		(1,800		)

^(c)  During the three months ended September 30, 2013, the Company recognized a $1.5 million tax benefit related to a change in a state income tax law, allowing the Company to utilize additional net operating loss carryforwards. During the three months ended March 31, 2014, the Company recognized an additional $1.8 million of tax benefits related to enacted changes in state income tax rates.

(24)SUBSEQUENT EVENT

On April 7, 2015, the Company announced that its Board of Directors declared a regular quarterly cash dividend of $0.60 per share. The dividend is payable on June 30, 2015 to stockholders of record as of June 15, 2015.

F-40

SCHEDULE II

AIRGAS, INC. AND SUBSIDIARIES

Valuation and Qualifying Accounts

for the Years Ended March 31, 2015, 2014 and 2013

(In thousands)			Additions
Description	Balance at Beginning of Period		Charged to Costs and Expenses		Charged to Other Accounts (a)		Deductions (b)			Balance at End of Period
2015
Accounts receivable - allowances for doubtful accounts	$	31,757	$	15,843	$	3,228	$	(23,812	)	$	27,016
2014
Accounts receivable - allowances for doubtful accounts	$	28,650	$	20,310	$	7,163	$	(24,366	)	$	31,757
2013
Accounts receivable - allowances for doubtful accounts	$	31,845	$	23,427	$	4,034	$	(30,656	)	$	28,650

____________________

^(a)      Principally reflects subsequent collections of accounts previously written-off.

^(b)      Write-off of uncollectible accounts.

F-41

EX-12

	
		
		
		ARG - 3.31.15 - 10-K EX. 12
	
	

EX-21

Exhibit 21

Airgas, Inc. and Subsidiaries

Entity Name	Domicile
Airgas, Inc.	Delaware
Airgas Canada Inc.	Canada
Airgas Carbonic, Inc. dba Airgas Dry Ice	Delaware
Airgas Data, LLC	Delaware
Airgas Logistics S.A. de C.V.	Mexico
Airgas Merchant Gases, LLC	Delaware
Airgas On-Site Safety Services, Inc.	Delaware
Airgas-Refrigerants, Inc.	Delaware
Airgas, S.A. de C.V.	Mexico
Airgas Safety, Inc.	Delaware
Airgas Sakhalin Holdings, LLC	Russia
Airgas Sakhalin, LLC	Russia
Airgas Specialty Gases, Inc.	Texas
Airgas Specialty Products, Inc.	Delaware
Airgas USA, LLC	Delaware
Airgas West, S. de R.L. de C.V.	Mexico
Nitrous Oxide Corp. dba Airgas Nitrous Oxide	Delaware
Radnor Funding Corp.	Delaware
Red-D-Arc B.V.	Netherlands
Red-D-Arc Limited	United Kingdom
Red-D-Arc, Inc.	Nevada
Red-D-Arc (Netherlands) B.V.	Netherlands
Red-D-Arc (FR) S.A.S	France
Red-D-Arc (Germany) GmbH	Germany
Red-D-Arc (U.K.) Limited	United Kingdom
Red-D-Arc Limited	Canada
Red-D-Arc, S.A. de C.V.	Mexico
Tool Plus, Inc.	California
WorldWide Welding, LLC	Delaware

EX-23

Exhibit 23

Consent of Independent Registered Public Accounting Firm

The Board of Directors

Airgas, Inc.:

We consent to the incorporation by reference in the registration statements on Form S-3 (Nos. 33-39433, 33-48388, 33-57893, 33-61301, 33-61899, 33-63201, 33-64633, 333-37863, 333-46266, 333-46739, 333-60995, 333-61989, 333-161774, 333-167140 and 333-188772), Form S-4 (No. 333-23651) and Form S-8 (Nos. 333-42023, 333-75258, 333-100187, 333-117965, 333-136463, 333-137185, 333-161660, 333-170139, 333-174883, 333-175676, 333-183372 and 333-196664) of Airgas, Inc. of our report dated May 27, 2015, with respect to the consolidated balance sheets of Airgas, Inc. and subsidiaries as of March 31, 2015 and 2014, the related consolidated statements of earnings, comprehensive income, stockholders’ equity and cash flows for each of the years in the three-year period ended March 31, 2015, the related financial statement schedule, and the effectiveness of internal control over financial reporting as of March 31, 2015, which report appears in the March 31, 2015 annual report on Form 10-K of Airgas, Inc.

/s/ KPMG LLP

Philadelphia, Pennsylvania

May 27, 2015

EX-31.1

Exhibit 31.1

CERTIFICATION OF EXECUTIVE CHAIRMAN

PURSUANT TO SECTION 302 OF THE

SARBANES-OXLEY ACT OF 2002

I, Peter McCausland, certify that:

1. I have reviewed this annual report on Form 10-K of Airgas, Inc.;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant’s other certifying officers and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a) designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b) designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c) evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d) disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5. The registrant’s other certifying officers and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

a) all significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

b) any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date: May 27, 2015

 /s/ PETER McCAUSLAND

Peter McCausland

Executive Chairman

(Co-Principal Executive Officer)

EX-31.2

Exhibit 31.2

CERTIFICATION OF CHIEF EXECUTIVE OFFICER

PURSUANT TO SECTION 302 OF THE

SARBANES-OXLEY ACT OF 2002

I, Michael L. Molinini, certify that:

1. I have reviewed this annual report on Form 10-K of Airgas, Inc.;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant’s other certifying officers and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a) designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b) designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c) evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d) disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5. The registrant’s other certifying officers and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

a) all significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

b) any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date: May 27, 2015

 /s/ MICHAEL L. MOLININI

Michael L. Molinini

President and Chief Executive Officer

(Co-Principal Executive Officer)

EX-31.3

Exhibit 31.3

CERTIFICATION OF CHIEF FINANCIAL OFFICER

PURSUANT TO SECTION 302 OF THE

SARBANES-OXLEY ACT OF 2002

I, Robert M. McLaughlin, certify that:

1. I have reviewed this annual report on Form 10-K of Airgas, Inc.;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant’s other certifying officers and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a) designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b) designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c) evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d) disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5. The registrant’s other certifying officers and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

a) all significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

b) any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date: May 27, 2015

/s/ ROBERT M. McLAUGHLIN

Robert M. McLaughlin

Senior Vice President and Chief Financial Officer

(Principal Financial Officer)

EX-32.1

Exhibit 32.1

CERTIFICATION PURSUANT TO

18 U.S.C. SECTION 1350,

AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the annual report of Airgas, Inc. (the “Company”) on Form 10-K for the period ended March 31, 2015 as filed with the Securities and Exchange Commission (the “Report”), I, Peter McCausland, Executive Chairman of the Company, certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that, to such officer’s knowledge:

(1) The Report fully complies with the requirements of section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

(2) The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company as of the dates and for the periods expressed in the Report.

 /s/ PETER McCAUSLAND

Peter McCausland

Executive Chairman

(Co-Principal Executive Officer)

May 27, 2015

The foregoing certification is being furnished to the Securities and Exchange Commission pursuant to 18 U.S.C. Section 1350 as an exhibit to the Report and is not being filed as part of the Report or as a separate disclosure document.

EX-32.2

Exhibit 32.2

CERTIFICATION PURSUANT TO

18 U.S.C. SECTION 1350,

AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the annual report of Airgas, Inc. (the “Company”) on Form 10-K for the period ended March 31, 2015 as filed with the Securities and Exchange Commission (the “Report”), I, Michael L. Molinini, President and Chief Executive Officer of the Company, certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that, to such officer’s knowledge:

(1) The Report fully complies with the requirements of section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

(2) The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company as of the dates and for the periods expressed in the Report.

 /s/ MICHAEL L. MOLININI

Michael L. Molinini

President and Chief Executive Officer

(Co-Principal Executive Officer)

May 27, 2015

The foregoing certification is being furnished to the Securities and Exchange Commission pursuant to 18 U.S.C. Section 1350 as an exhibit to the Report and is not being filed as part of the Report or as a separate disclosure document.

EX-32.3

Exhibit 32.3

CERTIFICATION PURSUANT TO

18 U.S.C. SECTION 1350,

AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the annual report of Airgas, Inc. (the “Company”) on Form 10-K for the period ended March 31, 2015 as filed with the Securities and Exchange Commission (the “Report”), I, Robert M. McLaughlin, Senior Vice President and Chief Financial Officer of the Company, certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that, to such officer’s knowledge:

(1) The Report fully complies with the requirements of section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

(2) The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company as of the dates and for the periods expressed in the Report.

/s/ ROBERT M. McLAUGHLIN

Robert M. McLaughlin

Senior Vice President and Chief Financial Officer

(Principal Financial Officer)

May 27, 2015

The foregoing certification is being furnished to the Securities and Exchange Commission pursuant to 18 U.S.C. Section 1350 as an exhibit to the Report and is not being filed as part of the Report or as a separate disclosure document.

XML

Goodwill and Other Intangible Assets (Tables)

12 Months Ended

Mar. 31, 2015

Goodwill and Intangible Assets Disclosure [Abstract]

Changes In Goodwill by Business Segment

Changes in the carrying amount of goodwill by business segment for fiscal 2015 and 2014 were as follows:

(In thousands)	Distribution Business Segment			All Other Operations Business Segment			Total
Balance at March 31, 2013	$	998,128		$	197,485		$	1,195,613
Acquisitions (a)	95,626			(216		)	95,410
Other adjustments, including foreign currency translation	(1,026		)	(101		)	(1,127		)
Balance at March 31, 2014	1,092,728			197,168			1,289,896
Acquisitions (a)	26,872			60			26,932
Other adjustments, including foreign currency translation	(3,031		)	(153		)	(3,184		)
Balance at March 31, 2015	$	1,116,569		$	197,075		$	1,313,644

____________________

^(a)  Includes acquisitions completed during the respective year and adjustments made to prior year acquisitions.

Schedule of Other Intangible Assets by Major Class

Other intangible assets by major class are as follows:

	March 31, 2015								March 31, 2014
(In thousands)	Weighted Average Amortization Period (Years)	Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount		Weighted Average Amortization Period (Years)	Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount
Customer relationships	17	$	345,805	$	(120,321	)	$	225,484	17	$	345,199	$	(107,577	)	$	237,622
Non-competition agreements	6	43,204		(24,335		)	18,869		7	40,316		(19,287		)	21,029
Other		200		(34		)	166			199		(14		)	185
		$	389,209	$	(144,690	)	$	244,519		$	385,714	$	(126,878	)	$	258,836

XML

Supplemental Cash Flow Information (Noncash Investing and Financing Activities) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Mar. 31, 2015		Mar. 31, 2014		Mar. 31, 2013
Noncash or Part Noncash Acquisitions [Line Items]
Net cash paid for acquisitions	$ (51,382)		$ (203,529)		$ (97,521)
Series of Individually Immaterial Business Acquisitions [Member]
Noncash or Part Noncash Acquisitions [Line Items]
Fair value of assets acquired	66,626		218,413		115,402
Net cash paid for acquisitions	(51,827)	[1]	(205,370)	[1]	(97,521)	[1]
Stock issued for acquisition	(4,458)	[2]	0	[2]	0	[2]
Liabilities assumed	$ 10,341		$ 13,043		$ 17,881

[1] Includes cash paid, net of cash acquired, for current year acquisitions as well as payments for the settlement of holdback liabilities and contingent consideration arrangements associated with prior year acquisitions.

[2] Represents shares of Airgas, Inc. common stock issued in connection with a single acquisition – see Note 3 for further information.

XML

Summary of Significant Accounting Policies (Details) (USD $)	12 Months Ended			351 Months Ended
	Mar. 31, 2015 employees locations	Mar. 31, 2014	Mar. 31, 2013	Mar. 31, 2015 businesses_acquired employees locations
Significant Accounting Policies [Line Items]
Number of businesses acquired (more than)				450
Number of employees (more than)	17,000			17,000
Number of locations	1,100			1,100
Intangible asset residual value	$ 0			$ 0
Asset retirement obligation	20,400,000	19,000,000		20,400,000
Credit terms period for customers, days	30 days
Distribution costs	889,000,000	850,000,000	841,000,000
Depreciation expense	297,710,000	275,461,000	261,622,000
Transportation equipment [Member]
Significant Accounting Policies [Line Items]
Depreciation expense	$ 32,000,000	$ 32,000,000	$ 30,000,000
Minimum [Member] | Computer software costs [Member]
Significant Accounting Policies [Line Items]
Plant and equipment, useful life	3 years
Minimum [Member] | Transportation equipment [Member]
Significant Accounting Policies [Line Items]
Plant and equipment, useful life	3 years
Minimum [Member] | Customer relationships [Member]
Significant Accounting Policies [Line Items]
Other intangible assets, useful life	7 years
Maximum [Member] | Computer software costs [Member]
Significant Accounting Policies [Line Items]
Plant and equipment, useful life	10 years
Maximum [Member] | Transportation equipment [Member]
Significant Accounting Policies [Line Items]
Plant and equipment, useful life	15 years
Maximum [Member] | Customer relationships [Member]
Significant Accounting Policies [Line Items]
Other intangible assets, useful life	25 years

XML

Leases (Tables)

12 Months Ended

Mar. 31, 2015

Leases [Abstract]

Schedule of Future Minimum Lease Payments for Operating Leases

At March 31, 2015, future minimum lease payments under non-cancelable operating leases were as follows:

(In thousands)
Years Ending March 31,
2016	$	104,273
2017	89,827
2018	74,021
2019	53,640
2020	34,677
Thereafter	52,182
	$	408,620

XML

Goodwill and Other Intangible Assets (Other Intangible Assets) (Details) (USD $)	12 Months Ended
	Mar. 31, 2015	Mar. 31, 2014	Mar. 31, 2013
Other intangible assets by major class
Gross carrying amount	$ 389,209,000	$ 385,714,000
Accumulated amortization	(144,690,000)	(126,878,000)
Net carrying amount	244,519,000	258,836,000
Amortization	31,348,000	29,845,000	27,278,000
Estimated future amortization expense by fiscal year
Estimated future amortization expense in 2016	29,100,000
Estimated future amortization expense in 2017	27,200,000
Estimated future amortization expense in 2018	25,400,000
Estimated future amortization expense in 2019	23,400,000
Estimated future amortization expense in 2020	21,900,000
Estimated future amortization expense thereafter	117,500,000
Customer relationships [Member]
Other intangible assets by major class
Gross carrying amount	345,805,000	345,199,000
Accumulated amortization	(120,321,000)	(107,577,000)
Net carrying amount	225,484,000	237,622,000
Non-competition agreements [Member]
Other intangible assets by major class
Gross carrying amount	43,204,000	40,316,000
Accumulated amortization	(24,335,000)	(19,287,000)
Net carrying amount	18,869,000	21,029,000
Other intangible assets [Member]
Other intangible assets by major class
Gross carrying amount	200,000	199,000
Accumulated amortization	(34,000)	(14,000)
Net carrying amount	166,000	185,000
Customer relationships, non-competition agreements and other [Member]
Other intangible assets by major class
Amortization	$ 30,000,000	$ 28,600,000
Weighted Average [Member] | Customer relationships [Member]
Other intangible assets by major class
Other intangible assets, useful life	17 years	17 years
Weighted Average [Member] | Non-competition agreements [Member]
Other intangible assets by major class
Other intangible assets, useful life	6 years	7 years

XML

Acquisitions and Divestitures (Acquisitions Narrative) (Details) (USD $)	12 Months Ended				351 Months Ended	12 Months Ended
	Mar. 31, 2015 locations		Mar. 31, 2014		Mar. 31, 2015 businesses_acquired locations	Mar. 31, 2013 businesses_acquired
Business Acquisition [Line Items]
Number of businesses acquired					450
Goodwill acquired during period	$ 26,932,000	[1]	$ 95,410,000	[1]
Number of locations	1,100				1,100
Series of Individually Immaterial Business Acquisitions [Member]
Business Acquisition [Line Items]
Number of businesses acquired	14		11			18
Historical annual sales of acquired businesses	55,000,000		82,000,000			95,000,000
Transaction and other integration costs	1,700,000		1,500,000			1,300,000
Net sales from current year acquisitions	27,000,000		33,000,000			30,000,000
Fair value of trade receivables acquired	6,200,000		8,900,000		6,200,000	9,200,000
Gross contractual amounts of acquired trade receivables	7,000,000		9,400,000		7,000,000	9,600,000
Goodwill acquired during period	25,100,000		93,300,000			35,200,000
Goodwill deductible for income tax purposes	20,900,000		89,700,000		20,900,000	35,200,000
Series of Individually Immaterial Business Acquisitions [Member] | Customer relationships [Member]
Business Acquisition [Line Items]
Other intangible assets acquired	11,300,000		55,800,000			30,400,000
Series of Individually Immaterial Business Acquisitions [Member] | Non-competition agreements [Member]
Business Acquisition [Line Items]
Other intangible assets acquired	4,800,000		4,300,000			11,700,000
The Encompass Gas Group, Inc. [Member]
Business Acquisition [Line Items]
Historical annual sales of acquired businesses	$ 55,000,000
Number of locations	11				11

[1] Includes acquisitions completed during the respective year and adjustments made to prior year acquisitions.

XML

Indebtedness (Senior Notes Narrative) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Mar. 31, 2015		Mar. 31, 2014
Debt Instrument [Line Items]
Long-term debt	$ 1,998,772		$ 2,107,096
4.50% senior notes due September 2014 [Member]
Debt Instrument [Line Items]
Long-term debt	0		399,952
3.25% senior notes due October 2015 [Member]
Debt Instrument [Line Items]
Long-term debt	249,962		249,887
2.95% senior notes due June 2016 [Member]
Debt Instrument [Line Items]
Long-term debt	249,918		249,848
1.65% senior notes due February 2018 [Member]
Debt Instrument [Line Items]
Long-term debt	324,688		324,579
2.375% senior notes due February 2020 [Member]
Debt Instrument [Line Items]
Long-term debt	274,791		274,748
2.90% senior notes due November 2022 [Member]
Debt Instrument [Line Items]
Long-term debt	249,787		249,760
3.65% senior notes due July 2024 [Member]
Debt Instrument [Line Items]
Long-term debt	299,462		0
Senior notes, net [Member]
Debt Instrument [Line Items]
Debt instrument, face amount	1,650,000		1,750,000
Debt instrument, unamortized discount	(1,392)		(1,226)
Long-term debt	1,648,608		1,748,774
Debt instrument, redemption, description	the Company has the option to redeem the Senior Notes prior to their maturity, in whole or in part, at 100% of the principal plus any accrued but unpaid interest and applicable make-whole payments.
Debt instrument, redemption price, percentage	100.00%
Senior notes, net [Member] | 4.50% senior notes due September 2014 [Member]
Debt Instrument [Line Items]
Debt instrument, interest rate, stated percentage	4.50%	[1]
Debt instrument, interest rate, effective percentage	4.527%	[1]
Debt instrument, frequency of periodic payment	March 15 and September 15	[1]
Debt instrument, face amount	0	[1]	400,000	[1]
Senior notes, net [Member] | 3.25% senior notes due October 2015 [Member]
Debt Instrument [Line Items]
Debt instrument, interest rate, stated percentage	3.25%	[2]
Debt instrument, interest rate, effective percentage	3.283%	[2]
Debt instrument, frequency of periodic payment	April 1 and October 1	[1]
Debt instrument, face amount	250,000	[2]	250,000	[2]
Senior notes, net [Member] | 2.95% senior notes due June 2016 [Member]
Debt Instrument [Line Items]
Debt instrument, interest rate, stated percentage	2.95%
Debt instrument, interest rate, effective percentage	2.98%
Debt instrument, frequency of periodic payment	June 15 and December 15	[1]
Debt instrument, face amount	250,000		250,000
Senior notes, net [Member] | 1.65% senior notes due February 2018 [Member]
Debt Instrument [Line Items]
Debt instrument, interest rate, stated percentage	1.65%
Debt instrument, interest rate, effective percentage	1.685%
Debt instrument, frequency of periodic payment	February 15 and August 15	[1]
Debt instrument, face amount	325,000		325,000
Senior notes, net [Member] | 2.375% senior notes due February 2020 [Member]
Debt Instrument [Line Items]
Debt instrument, interest rate, stated percentage	2.375%
Debt instrument, interest rate, effective percentage	2.392%
Debt instrument, frequency of periodic payment	February 15 and August 15	[1]
Debt instrument, face amount	275,000		275,000
Senior notes, net [Member] | 2.90% senior notes due November 2022 [Member]
Debt Instrument [Line Items]
Debt instrument, interest rate, stated percentage	2.90%
Debt instrument, interest rate, effective percentage	2.913%
Debt instrument, frequency of periodic payment	May 15 and November 15	[1]
Debt instrument, face amount	250,000		250,000
Senior notes, net [Member] | 3.65% senior notes due July 2024 [Member]
Debt Instrument [Line Items]
Debt instrument, interest rate, stated percentage	3.65%	[3]
Debt instrument, interest rate, effective percentage	3.673%	[3]
Debt instrument, frequency of periodic payment	January 15 and July 15	[1]
Debt instrument, face amount	$ 300,000	[3]	$ 0	[3]

[1] The 2014 Notes were repaid by the Company in September 2014.

[2] The 2015 Notes are included within the “Current portion of long-term debt” line item on the Company’s consolidated balance sheet based on the maturity date.

[3] On June 17, 2014, the Company issued the 2024 Notes. The net proceeds from the sale of the 2024 Notes were used for general corporate purposes, including to fund acquisitions and repay indebtedness under the Company’s commercial paper program. Interest payments on the 2024 Notes commenced on January 15, 2015.

XML

Commitments and Contingencies (Supply Agreements) (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2015
Unrecorded Unconditional Purchase Obligation[Line Items]
Annual commitment over next fiscal year for unrecorded unconditional purchase obligations	$ 221,228
Air Products [Member] | Bulk Gases [Member]
Unrecorded Unconditional Purchase Obligation[Line Items]
Annual commitment over next fiscal year for unrecorded unconditional purchase obligations	66,000
Linde AG [Member] | Bulk Gases [Member]
Unrecorded Unconditional Purchase Obligation[Line Items]
Annual commitment over next fiscal year for unrecorded unconditional purchase obligations	99,000
Other Producers [Member] | Bulk Gases [Member]
Unrecorded Unconditional Purchase Obligation[Line Items]
Annual commitment over next fiscal year for unrecorded unconditional purchase obligations	36,000
Other Producers [Member] | Liquid Carbon Dioxide [Member]
Unrecorded Unconditional Purchase Obligation[Line Items]
Annual commitment over next fiscal year for unrecorded unconditional purchase obligations	$ 20,000
Number of suppliers	12

XML

Interest Expense, Net (Tables)

12 Months Ended

Mar. 31, 2015

Interest Expense [Abstract]

Schedule of Interest Expense, Net

Interest expense, net, consists of:

	Years Ended March 31,
(In thousands)	2015			2014			2013
Interest expense	$	64,191		$	75,361		$	70,077
Interest and finance charge income	(1,959		)	(1,663		)	(2,583		)
	$	62,232		$	73,698		$	67,494

XML

Valuation and Qualifying Accounts

12 Months Ended

Mar. 31, 2015

Valuation and Qualifying Accounts [Abstract]

Valuation and Qualifying Accounts

SCHEDULE II

AIRGAS, INC. AND SUBSIDIARIES

Valuation and Qualifying Accounts

for the Years Ended March 31, 2015, 2014 and 2013

(In thousands)			Additions
Description	Balance at Beginning of Period		Charged to Costs and Expenses		Charged to Other Accounts (a)		Deductions (b)			Balance at End of Period
2015
Accounts receivable - allowances for doubtful accounts	$	31,757	$	15,843	$	3,228	$	(23,812	)	$	27,016
2014
Accounts receivable - allowances for doubtful accounts	$	28,650	$	20,310	$	7,163	$	(24,366	)	$	31,757
2013
Accounts receivable - allowances for doubtful accounts	$	31,845	$	23,427	$	4,034	$	(30,656	)	$	28,650

____________________

^(a)      Principally reflects subsequent collections of accounts previously written-off.

^(b)      Write-off of uncollectible accounts.

XML

Indebtedness (Debt Extinguishment Charge Narrative) (Details) (USD $)	12 Months Ended			0 Months Ended
	Mar. 31, 2015	Mar. 31, 2014	Mar. 31, 2013	Oct. 02, 2013
Extinguishment of Debt [Line Items]
Loss on the extinguishment of debt	$ 0	$ (9,150,000)	$ 0
Senior subordinated notes [Member]
Extinguishment of Debt [Line Items]
Extinguishment of debt, amount				215,000,000
Debt instrument, interest rate, stated percentage				7.125%
Debt instrument, redemption price, percentage				103.563%
Loss on the extinguishment of debt		$ (9,100,000)

XML

Supplementary Information (Unaudited) (Summary of Unaudited Results of Operations) (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended																12 Months Ended
	Mar. 31, 2015		Dec. 31, 2014		Sep. 30, 2014		Jun. 30, 2014		Mar. 31, 2014		Dec. 31, 2013		Sep. 30, 2013		Jun. 30, 2013		Mar. 31, 2015	Mar. 31, 2014	Mar. 31, 2013
Schedule Of Quarterly Financial Information [Line Items]
Net sales	$ 1,301,723		$ 1,331,820		$ 1,357,755		$ 1,313,587		$ 1,267,830		$ 1,242,846		$ 1,281,970		$ 1,279,891		$ 5,304,885	$ 5,072,537	$ 4,957,497
Operating income	147,530		162,886		175,781		155,081		150,232		154,919		168,769		156,614		641,278	630,534	596,417
Net earnings	87,723	[1]	93,199	[1]	98,312	[1]	88,852	[1]	88,357	[1]	82,759	[1]	94,982	[1]	84,686	[1]	368,086	350,784	340,874
Basic earnings per share	$ 1.17	[2]	$ 1.25	[2]	$ 1.32	[2]	$ 1.20	[2]	$ 1.19	[2]	$ 1.12	[2]	$ 1.29	[2]	$ 1.16	[2]	$ 4.93	$ 4.76	$ 4.45
Diluted earnings per share	$ 1.15	[2]	$ 1.23	[2]	$ 1.30	[2]	$ 1.18	[2]	$ 1.17	[2]	$ 1.10	[2]	$ 1.27	[2]	$ 1.14	[2]	$ 4.85	$ 4.68	$ 4.35
Debt Extinguishment [Member]
Schedule Of Quarterly Financial Information [Line Items]
Net earnings									0		(5,646)		0		0
State Income Tax Benefits [Member]
Schedule Of Quarterly Financial Information [Line Items]
Net earnings									$ (1,800)		$ 0	[3]	$ (1,493)		$ 0	[3]

[1] Net earnings include the impact of the following non-operating items (after tax)

[2] Earnings per share calculations for each of the quarters are based on the weighted average number of shares outstanding in each quarter. Therefore, the sum of the quarterly earnings per share does not necessarily equal the full year earnings per share disclosed on the consolidated statements of earnings.

[3] (c) During the three months ended September 30, 2013, the Company recognized a $1.5 million tax benefit related to a change in a state income tax law, allowing the Company to utilize additional net operating loss carryforwards. During the three months ended March 31, 2014, the Company recognized an additional $1.8 million of tax benefits related to enacted changes in state income tax rates.

XML

Indebtedness (Schedule of Debt) (Details) (USD $)	Mar. 31, 2015	Mar. 31, 2014
Debt Instrument [Line Items]
Short-term debt	$ 325,871,000	$ 387,866,000
Long-term debt	1,998,772,000	2,107,096,000
Less current portion of long-term debt	(250,110,000)	(400,322,000)
Long-term debt, excluding current portion	1,748,662,000	1,706,774,000
Total debt	2,324,643,000	2,494,962,000
Money market loans [Member]
Debt Instrument [Line Items]
Short-term debt	0	0
Commercial paper [Member]
Debt Instrument [Line Items]
Short-term debt	325,871,000	387,866,000
Trade receivables securitization [Member]
Debt Instrument [Line Items]
Long-term debt	295,000,000	295,000,000
Revolving credit borrowings - U.S. [Member]
Debt Instrument [Line Items]
Long-term debt	0	0
Revolving credit borrowings - Multi-currency [Member]
Debt Instrument [Line Items]
Long-term debt	48,332,000	54,230,000
Revolving credit borrowings - France [Member]
Debt Instrument [Line Items]
Long-term debt	6,277,000	8,056,000
Senior notes, net [Member]
Debt Instrument [Line Items]
Long-term debt	1,648,608,000	1,748,774,000
Other long-term debt [Member]
Debt Instrument [Line Items]
Long-term debt	$ 555,000	$ 1,036,000

XML

Stockholders' Equity (Stockholder Rights Plan) (Details) (USD $)	12 Months Ended
	Mar. 31, 2015 rights
Stockholder Rights [Line Items]
Number of rights per each share of common stock	1
Days after acquisition of certain percentage of company common stock that rights become exercisable	10 days
Number of business days for rights to become exercisable after tender or exchange offer	10 days
Market value of stock purchased with stockholder rights, in relation to exercise price	200.00%
Entity's optional redemption price per right	$ 0.0001
Series C Junior Participating Preferred Stock [Member]
Stockholder Rights [Line Items]
Number of shares called by each right	0.0001000
Exercise price of rights	$ 230
Any Person or Group Other Than Peter McCausland [Member]
Stockholder Rights [Line Items]
Percentage of outstanding common stock that needs to be purchased to make rights exercisable	15.00%
Percentage of outstanding common stock to be acquired in a tender offer or exchange offer	15.00%
Percentage of outstanding common stock that if acquired would entitle the holder to purchase common stock with a market value equal to twice the exercise price	15.00%
Peter McCausland or Affiliated Group [Member]
Stockholder Rights [Line Items]
Percentage of outstanding common stock that needs to be purchased to make rights exercisable	20.00%
Percentage of outstanding common stock to be acquired in a tender offer or exchange offer	20.00%
Percentage of outstanding common stock that if acquired would entitle the holder to purchase common stock with a market value equal to twice the exercise price	20.00%

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Acquisitions and Divestitures (Pro Forma Operating Results) (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	Mar. 31, 2015	Mar. 31, 2014	Mar. 31, 2013
FY15 Acquisitions [Member]
Business Acquisition [Line Items]
Net sales	$ 5,327,458	$ 5,123,979
Net earnings	368,305	351,941
Diluted earnings per share	$ 4.86	$ 4.70
FY14 Acquisitions [Member]
Business Acquisition [Line Items]
Net sales		5,122,936	5,037,123
Net earnings		$ 352,421	$ 343,933
Diluted earnings per share		$ 4.70	$ 4.39

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Benefit Plans (Deferred Compensation Plan) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Deferred Compensation Arrangement with Individual, Postretirement Benefits [Line Items]
Deferred compensation plan assets	16,300	$ 16,400
Deferred compensation plan liabilities	16,300	$ 16,400
Maximum [Member]
Deferred Compensation Arrangement with Individual, Postretirement Benefits [Line Items]
Salary contribution to deferred compensation plan, percentage	75.00%
Bonus contribution to deferred compensation plan, percentage	100.00%

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Indebtedness (Trade Receivables Securitization Narrative) (Details) (Trade receivables securitization [Member], USD $) In Millions, unless otherwise specified	12 Months Ended
	Mar. 31, 2015 banks
Debt Instrument [Line Items]
Number of commercial banks participating in trade securitization agreement	3
Trade receivables securitization	$ 295
Basis spread on variable rate	0.75%
Maximum [Member]
Debt Instrument [Line Items]
Trade receivables securitization	$ 295

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Stockholders' Equity (Common Stock) (Details) (USD $)	Mar. 31, 2015	Mar. 31, 2014
Stockholders' Equity Note [Abstract]
Common stock, shares authorized	200,000,000	200,000,000
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares, outstanding	75,400,000	74,100,000
Treasury stock, shares	12,197,000	13,264,000

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Derivative Instruments and Hedging Activities (Narrative) (Details) (USD $)	12 Months Ended	1 Months Ended	12 Months Ended
	Mar. 31, 2015 derivative_instruments	Sep. 30, 2010	Mar. 31, 2014	Mar. 31, 2013	Jul. 30, 2010	Oct. 01, 2013 derivative_instruments
Derivative Instruments, Gain (Loss) [Line Items]
Number of interest rate derivatives held	0		0
Description of derivative activity volume	There were no outstanding derivative instruments on the Company’s consolidated balance sheets at March 31, 2015 or 2014, nor any derivative instruments used by the Company during the year ended March 31, 2015.
Treasury Lock [Member] | Cash Flow Hedging [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative, notional amount					$ 100,000,000
Derivative instruments, loss recognized in other comprehensive income (loss), effective portion		2,600,000
Derivative instruments, loss recognized in other comprehensive income (loss), effective portion, net of tax		1,600,000
Derivative instruments, loss reclassified from accumulated OCI into income, effective portion	517,000		517,000	517,000
Interest Rate Swap [Member] | Fair Value Hedging [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative, notional amount						300,000,000
Number of interest rate derivatives held						5
Derivative, amount of hedged item						$ 300,000,000
Two Point Eight Five Percent Senior Notes Due October Two Thousand Thirteen Member | Senior notes, net [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Debt instrument, interest rate, stated percentage	2.85%

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Stockholders' Equity (Preferred Stock and Redeemable Preferred Stock) (Details)	Mar. 31, 2015	Mar. 31, 2014
Class of Stock [Line Items]
Preferred stock, shares authorized	20,030,000	20,030,000
Preferred stock, shares issued	0	0
Preferred stock, shares outstanding	0	0
Series A Junior Participating Preferred Stock [Member]
Class of Stock [Line Items]
Preferred stock, shares authorized	200,000
Series B Junior Participating Preferred Stock [Member]
Class of Stock [Line Items]
Preferred stock, shares authorized	200,000
Series C Junior Participating Preferred Stock [Member]
Class of Stock [Line Items]
Preferred stock, shares authorized	200,000
Redeemable Preferred Stock [Member]
Class of Stock [Line Items]
Preferred stock, shares authorized	30,000
Preferred stock, shares issued	0	0
Preferred stock, shares outstanding	0	0

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Indebtedness (Senior Credit Facility Narrative) (Details) In Millions, unless otherwise specified		0 Months Ended			12 Months Ended		0 Months Ended	12 Months Ended		12 Months Ended
	Mar. 31, 2015 USD ($)	Nov. 18, 2014 Revolving credit facility [Member] USD ($)	Mar. 31, 2015 Revolving credit facility [Member] USD ($)	Nov. 18, 2014 Revolving credit facility [Member] USD ($)	Mar. 31, 2015 Revolving credit borrowings - US [Member] USD ($)	Nov. 18, 2014 Revolving credit borrowings - US [Member] USD ($)	Nov. 18, 2014 Revolving credit borrowings - Multi-currency [Member] USD ($)	Mar. 31, 2015 Revolving credit borrowings - Multi-currency [Member] USD ($)	Nov. 18, 2014 Revolving credit borrowings - Multi-currency [Member] USD ($)	Mar. 31, 2015 Revolving credit borrowings - France [Member] USD ($)	Mar. 31, 2015 Revolving credit borrowings - France [Member] EUR (€)	Nov. 18, 2014 Letter of Credit [Member] USD ($)	Nov. 18, 2014 Swingline [Member] USD ($)
Debt Instrument [Line Items]
Line of credit facility, maximum borrowing capacity				$ 1,000.0		$ 875.0			$ 125.0	$ 8.6	€ 8.0	$ 100.0	$ 75.0
Line of credit facility, increase, additional borrowings, maximum		500					50
Line of credit facility, outstanding borrowings			48.0		0			48.0		6.3	5.8
Letters of credit outstanding	51
Basis spread on variable rate					1.25%			1.25%		1.25%	1.25%
Line of credit facility, interest rate at period end								1.69%
Line of credit facility, unused capacity, commitment fee percentage					0.15%			0.15%
Line of credit facility, remaining borrowing capacity			$ 575

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Goodwill and Other Intangible Assets (Prior Year Impairment Evaluation) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Mar. 31, 2013
Goodwill and Intangible Assets Disclosure [Abstract]
Impairment of other intangible assets	$ 1,729

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Commitments and Contingencies

12 Months Ended

Mar. 31, 2015

Commitments and Contingencies Disclosure [Abstract]

Commitments and Contingencies

COMMITMENTS AND CONTINGENCIES

Litigation

The Company is involved in various legal and regulatory proceedings that have arisen in the ordinary course of business and have not been fully adjudicated. These actions, when ultimately concluded and determined, will not, in the opinion of management, have a material adverse effect upon the Company’s consolidated financial condition, results of operations or liquidity.

Insurance Coverage

The Company has established insurance programs to cover workers’ compensation, business automobile and general liability claims. During fiscal 2015, 2014 and 2013, these programs had deductible limits of $1 million per occurrence. For fiscal 2016, the deductible limits are expected to remain at $1 million per occurrence. The Company believes its business insurance reserves are adequate (see Note 8). The Company accrues estimated losses using actuarial models and assumptions based on historical loss experience. The nature of the Company’s business may subject it to product and general liability lawsuits. To the extent that the Company is subject to claims that exceed its liability insurance coverage, such suits could have a material adverse effect on the Company’s financial position, results of operations or liquidity.

The Company maintains a self-insured health benefits plan, which provides medical benefits to employees electing coverage under the plan. The Company maintains a reserve for incurred but not reported medical claims and claim development. The reserve is an estimate based on historical experience and other assumptions, some of which are subjective. The Company adjusts its self-insured medical benefits reserve as the Company’s loss experience changes due to medical inflation, changes in the number of plan participants and an aging employee base. The Company’s self-insured medical benefits reserve was $13.8 million and $12.9 million at March 31, 2015 and 2014, respectively.

Supply Agreements

The Company purchases bulk quantities of industrial gases under take-or-pay supply agreements. The Company is a party to take-or-pay supply agreements under which Air Productsand Chemicals, Inc. (“Air Products”)will supply the Company with bulk nitrogen, oxygen, argon, hydrogen and helium. The Company is committed to purchase a minimum of approximately$66 millionin bulk gases within the next fiscal year under the Air Products supply agreements. The agreements expire at various dates through2020. The Company also has take-or-pay supply agreements withThe Linde Group AGto purchase oxygen, nitrogen, argon and helium. The agreements expire at various dates through2025and represent approximately$99 million in minimum bulk gas purchases for the next fiscal year. Additionally, the Company has take-or-pay supply agreements to purchase oxygen, nitrogen, argon, helium and ammonia from other major producers. Minimum purchases under these contracts for the next fiscal year are approximately$36 millionand they expire at various dates through2024. The Company also purchases liquid carbon dioxide under take-or-pay supply agreements with twelvesuppliers that expire at various dates through2044and represent minimum purchases of approximately$20 millionfor the next fiscal year. The level of annual purchase commitments under the Company’s supply agreements beyond the next fiscal year vary based on the expiration of agreements at different dates in the future, among other factors.

The Company’s annual purchase commitments under all of its supply agreements reflect estimates based on fiscal2015purchases. The Company’s supply agreements contain periodic pricing adjustments, most of which are based on certain economic indices and market analyses. The Company believes the minimum product purchases under the agreements are within the Company’s normal product purchases. Actual purchases in future periods under the supply agreements could differ materially from those presented due to fluctuations in demand requirements related to varying sales levels as well as changes in economic conditions.If a supply agreement with a major supplier of gases or other raw materials was terminated, the Company would attempt to locate alternative sources of supply to meet customer requirements, including utilizing excess internal production capacity for atmospheric gases. The Company purchases hardgoods from major manufacturers and suppliers. For certain products, the Company has negotiated national purchasing arrangements. The Company believes that if an arrangement with any supplier of hardgoods was terminated, it would be able to negotiate comparable alternative supply arrangements.

At March 31, 2015, future commitments under take-or-pay supply agreements were as follows:

(In thousands)
Years Ending March 31,
2016	$	221,228
2017	218,840
2018	175,250
2019	141,722
2020	97,170
Thereafter	275,656
	$	1,129,866

Construction Commitments

Construction commitments of approximately $83 million at March 31, 2015 represent outstanding commitments to complete authorized construction projects. At March 31, 2015, the Company had long-term agreements with two customers to construct on-site air separation units. The units will be located in Calvert City, KY and Tuscaloosa, AL.

Letters of Credit

At March 31, 2015, the Company had outstanding letters of credit of $51 million. Letters of credit are guarantees of payment to third parties. The Company’s letters of credit principally back obligations associated with the Company’s deductible on workers’ compensation, business automobile and general liability claims. The letters of credit are supported by the Company’s Credit Facility.

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Supplemental Cash Flow Information (Tables)

12 Months Ended

Mar. 31, 2015

Supplemental Cash Flow Information [Abstract]

Schedule of Cash Paid for Interest and Income Taxes

Cash paid for interest and income taxes was as follows:

	Years Ended March 31,
(In thousands)	2015		2014		2013
Interest paid	$	62,986	$	86,479	$	66,569
Income taxes, net of refunds	194,161		164,482		133,951

Schedule of Noncash or Part Noncash Acquisitions

Liabilities assumed and stock issued as a result of acquisitions were as follows:

	Years Ended March 31,
(In thousands)	2015			2014			2013
Fair value of assets acquired	$	66,626		$	218,413		$	115,402
Net cash paid for acquisitions (a)	(51,827		)	(205,370		)	(97,521		)
Stock issued for acquisition (b)	(4,458		)	—			—
Liabilities assumed	$	10,341		$	13,043		$	17,881

____________________

^(a)  Includes cash paid, net of cash acquired, for current year acquisitions as well as payments for the settlement of holdback liabilities and contingent consideration arrangements associated with prior year acquisitions.

^(b)  Represents shares of Airgas, Inc. common stock issued in connection with a single acquisition – see Note 3 for further information.

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Derivative Instruments and Hedging Activities (Tables)

12 Months Ended

Mar. 31, 2015

General Discussion of Derivative Instruments and Hedging Activities [Abstract]

Effect Of Derivative Instruments On Earnings

	Location of Gain (Loss) Recognized in Pre-tax Income	Amount of Gain (Loss) Recognized in Pre-Tax Income
(In thousands)		Years Ended March 31,
Derivatives in Fair Value Hedging Relationships		2014			2013
Change in fair value of variable interest rate swaps	Interest expense, net	$	(2,490	)	$	(4,244	)
Change in carrying value of 2013 Notes	Interest expense, net	2,496			4,273
Net effect	Interest expense, net	$	6		$	29

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Indebtedness (Commercial Paper Narrative) (Details) (USD $)	12 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Short-term Debt [Line Items]
Short-term debt	$ 325,871,000	$ 387,866,000
Commercial paper [Member]
Short-term Debt [Line Items]
Line of credit facility, maximum borrowing capacity	1,000,000,000
Short-term debt, terms	maturities that vary, but will generally not exceed 90 days from the date of issue
Short-term debt	$ 325,871,000	$ 387,866,000
Short-term debt, weighted average interest rate		0.57%
Maximum [Member] | Commercial paper [Member]
Short-term Debt [Line Items]
Short-term debt maturity period	90 days

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Stock-Based Compensation (ESPP Purchase Option Assumptions) (Details) (Employee Stock Purchase Plan [Member])	12 Months Ended
	Mar. 31, 2015	Mar. 31, 2014	Mar. 31, 2013
Valuation Assumption [Line Items]
Expected volatility	17.10%	19.50%	23.20%
Expected dividend yield	2.07%	1.96%	2.19%
Risk-free interest rate	0.06%	0.08%	0.10%
Minimum [Member]
Valuation Assumption [Line Items]
Expected term, months	3 months	3 months	3 months
Maximum [Member]
Valuation Assumption [Line Items]
Expected term, months	9 months	9 months	6 months

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Income Taxes (Tables)

12 Months Ended

Mar. 31, 2015

Income Tax Disclosure [Abstract]

Schedule of Earnings Before Income Taxes, Domestic and Foreign

Earnings before income taxes were derived from the following sources:

	Years Ended March 31,
(In thousands)	2015		2014		2013
United States	$	572,182	$	539,063	$	519,833
Foreign	11,939		12,842		23,584
	$	584,121	$	551,905	$	543,417

Schedule of Components of Income Tax Expense

Income tax expense consists of:

	Years Ended March 31,
(In thousands)	2015		2014			2013
Current:
Federal	$	163,774	$	184,308		$	145,603
Foreign	2,010		4,561			7,042
State	17,410		19,121			13,589
	183,194		207,990			166,234
Deferred:
Federal	24,499		(4,722		)	26,993
Foreign	2,604		(1,127		)	(975		)
State	5,738		(1,020		)	10,291
	32,841		(6,869		)	36,309
	$	216,035	$	201,121		$	202,543

Effective Income Tax Rate Reconciliation

Significant differences between taxes computed at the federal statutory rate and the provision for income taxes were:

	Years Ended March 31,
	2015		2014		2013
Taxes at U.S. federal statutory rate	35.0	%	35.0	%	35.0	%
Increase (decrease) in income taxes resulting from:
State income taxes, net of federal benefit	2.6	%	2.1	%	2.9	%
Domestic production activities deduction	(1.0	)%	(1.0	)%	(0.9	)%
Other, net	0.4	%	0.3	%	0.3	%
	37.0	%	36.4	%	37.3	%

Schedule of Deferred Tax Assets and Liabilities

The tax effects of cumulative temporary differences and carryforwards that gave rise to the significant portions of the deferred tax assets and liabilities were as follows:

	March 31,
(In thousands)	2015			2014
Deferred Tax Assets:
Inventories	$	27,697		$	25,874
Deferred rental income	17,986			18,256
Insurance reserves	14,157			12,627
Litigation settlement and other reserves	3,132			3,181
Asset retirement obligations	7,553			7,180
Stock-based compensation	33,538			30,934
Other	19,876			21,864
Net operating loss carryforwards	12,061			13,081
Valuation allowance	(671		)	(308		)
	135,329			132,689
Deferred Tax Liabilities:
Plant and equipment	(711,840		)	(702,080		)
Intangible assets	(207,690		)	(188,289		)
Other	(12,301		)	(10,256		)
	(931,831		)	(900,625		)
Net deferred tax liability	$	(796,502	)	$	(767,936	)

Schedule of Deferred Tax Assets and Liabilities by Balance Sheet Grouping

Current deferred tax assets and current deferred tax liabilities have been netted for presentation purposes. Non-current deferred tax assets and non-current deferred tax liabilities have also been netted. Deferred tax assets and liabilities are reflected in the Company’s consolidated balance sheets as follows:

	March 31,
(In thousands)	2015			2014
Current deferred income tax asset, net	$	58,072		$	57,961
Non-current deferred income tax liability, net	(854,574		)	(825,897		)
Net deferred tax liability	$	(796,502	)	$	(767,936	)

Unrecognized Net Income Tax Benefits Roll Forward

	March 31,
(In thousands)	2015			2014
Beginning unrecognized net income tax benefits	$	18,224		$	16,467
Additions for current year tax positions	3,565			3,054
Additions for tax positions of prior years	1,288			151
Reductions for tax positions of prior years	(1,646		)	(1,448		)
Reductions for settlements with taxing authorities	(234		)	—
Reductions as a result of expiration of applicable statutes of limitations	(214		)	—
Ending unrecognized net income tax benefits	$	20,983		$	18,224

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Restructuring and Other Special Charges, Net (Tables)

12 Months Ended

Mar. 31, 2015

Restructuring Charges [Abstract]

Components of Restructuring and Other Special Charges, Net

The following table presents the components of restructuring and other special charges, net, for the year ended March 31, 2013:

	Year Ended March 31,
(In thousands)	2013
Restructuring costs (benefits), net	$	(2,177	)
Other related costs	8,537
Intangible asset impairment charge	1,729
Total restructuring and other special charges, net	$	8,089

Schedule Of Restructuring Liabilities by Type of Cost

The activity in the accrued liability balances associated with the restructuring plan was as follows for the years ended March 31, 2015, 2014 and 2013:

(In thousands)	Severance Costs			Facility Exit and Other Costs			Total
Balance at March 31, 2012	$	13,138		$	990		$	14,128
Restructuring charges	—			1,523			1,523
Cash payments	(4,756		)	(2,199		)	(6,955		)
Other adjustments	(3,700		)	—			(3,700		)
Balance at March 31, 2013	$	4,682		$	314		$	4,996
Cash payments and other adjustments	(3,321		)	(237		)	(3,558		)
Balance at March 31, 2014	$	1,361		$	77		$	1,438
Cash payments and other adjustments	(1,361		)	(77		)	(1,438		)
Balance at March 31, 2015	$	—		$	—		$	—

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Plant and Equipment (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Plant and Equipment [Line Items]
Plant and equipment at cost	$ 5,305,059	$ 4,931,064
Land and land improvements [Member]
Plant and Equipment [Line Items]
Plant and equipment at cost	225,721	209,195
Buildings and improvements [Member]
Plant and Equipment [Line Items]
Plant and equipment at cost	581,076	538,712
Plant and equipment, useful life	25 years
Cylinders [Member]
Plant and Equipment [Line Items]
Plant and equipment at cost	1,461,600	1,405,857
Plant and equipment, useful life	30 years
Bulk tank stations [Member]
Plant and Equipment [Line Items]
Plant and equipment at cost	789,881	720,717
Rental equipment [Member]
Plant and Equipment [Line Items]
Plant and equipment at cost	466,833	403,351
Machinery and equipment [Member]
Plant and Equipment [Line Items]
Plant and equipment at cost	988,857	948,638
Computers, furniture and fixtures [Member]
Plant and Equipment [Line Items]
Plant and equipment at cost	338,316	303,400
Transportation equipment [Member]
Plant and Equipment [Line Items]
Plant and equipment at cost	369,034	341,709
Construction in progress [Member]
Plant and Equipment [Line Items]
Plant and equipment at cost	$ 83,741	$ 59,485
Minimum [Member] | Bulk tank stations [Member]
Plant and Equipment [Line Items]
Plant and equipment, useful life	10 years
Minimum [Member] | Rental equipment [Member]
Plant and Equipment [Line Items]
Plant and equipment, useful life	2 years
Minimum [Member] | Machinery and equipment [Member]
Plant and Equipment [Line Items]
Plant and equipment, useful life	7 years
Minimum [Member] | Computers, furniture and fixtures [Member]
Plant and Equipment [Line Items]
Plant and equipment, useful life	3 years
Minimum [Member] | Transportation equipment [Member]
Plant and Equipment [Line Items]
Plant and equipment, useful life	3 years
Maximum [Member] | Bulk tank stations [Member]
Plant and Equipment [Line Items]
Plant and equipment, useful life	30 years
Maximum [Member] | Rental equipment [Member]
Plant and Equipment [Line Items]
Plant and equipment, useful life	10 years
Maximum [Member] | Machinery and equipment [Member]
Plant and Equipment [Line Items]
Plant and equipment, useful life	10 years
Maximum [Member] | Computers, furniture and fixtures [Member]
Plant and Equipment [Line Items]
Plant and equipment, useful life	10 years
Maximum [Member] | Transportation equipment [Member]
Plant and Equipment [Line Items]
Plant and equipment, useful life	15 years
Weighted Average [Member] | Bulk tank stations [Member]
Plant and Equipment [Line Items]
Plant and equipment, useful life	17 years

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Supplemental Cash Flow Information (Cash Paid For Interest And Taxes) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Mar. 31, 2015	Mar. 31, 2014	Mar. 31, 2013
Supplemental Cash Flow Information [Abstract]
Interest paid	$ 62,986	$ 86,479	$ 66,569
Income taxes, net of refunds	$ 194,161	$ 164,482	$ 133,951

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Income Taxes (Earnings Before Income Taxes) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Mar. 31, 2015	Mar. 31, 2014	Mar. 31, 2013
Income Tax Disclosure [Abstract]
United States	$ 572,182	$ 539,063	$ 519,833
Foreign	11,939	12,842	23,584
Earnings before income taxes	$ 584,121	$ 551,905	$ 543,417

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Earnings Per Share (Tables)

12 Months Ended

Mar. 31, 2015

Earnings Per Share [Abstract]

Computation Of Basic And Diluted Weighted Average Common Shares Outstanding

The table below presents the computation of basic and diluted weighted average common shares outstanding for the years ended March 31, 2015, 2014 and 2013:

(In thousands, except per share amounts)	Years Ended March 31,
Basic Earnings per Share Computation	2015		2014		2013
Numerator:
Net earnings	$	368,086	$	350,784	$	340,874
Denominator:
Basic shares outstanding	74,702		73,623		76,651
Basic earnings per share	$	4.93	$	4.76	$	4.45
(In thousands, except per share amounts)	Years Ended March 31,
Diluted Earnings per Share Computation	2015		2014		2013
Numerator:
Net earnings	$	368,086	$	350,784	$	340,874
Denominator:
Basic shares outstanding	74,702		73,623		76,651
Incremental shares from assumed exercises and conversions:
Stock options and options under the Employee Stock Purchase Plan	1,149		1,287		1,656
Diluted shares outstanding	75,851		74,910		78,307
Diluted earnings per share	$	4.85	$	4.68	$	4.35

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Summary of Significant Accounting Policies

12 Months Ended

Mar. 31, 2015

Accounting Policies [Abstract]

Summary of Significant Accounting Policies

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

(a) Description of the Business

Airgas, Inc., together with its subsidiaries (“Airgas” or the “Company”), became a publicly traded company on the New York Stock Exchange in 1986. Since its inception, the Company has made more than 450 acquisitions to become one of the nation’s leading suppliers of industrial, medical and specialty gases, and hardgoods, such as welding equipment and related products. Airgas is a leading U.S. producer of atmospheric gases, carbon dioxide, dry ice and nitrous oxide, one of the largest U.S. suppliers of safety products, and a leading U.S. supplier of refrigerants, ammonia products and process chemicals.The Company markets its products and services through multiple sales channels, including branch-based sales representatives, retail stores, strategic customer account programs, telesales, catalogs, e-Business and independent distributors. Approximately 17,000 associates work in more than 1,100 locations, including branches, retail stores, gas fill plants, specialty gas labs, production facilities and distribution centers.

(b) Basis of Presentation

The consolidated financial statements include the accounts of Airgas, Inc. and its subsidiaries. Intercompany accounts and transactions are eliminated in consolidation.

The Company has made estimates and assumptions relating to the reporting of assets and liabilities and disclosure of contingent assets and liabilities to prepare these consolidated financial statements in conformity with U.S. generally accepted accounting principles (“GAAP”). Estimates are used for, but not limited to, determining the net carrying value of trade receivables, inventories, plant and equipment, goodwill, other intangible assets, asset retirement obligations, business and health insurance reserves, loss contingencies and deferred tax assets. Actual results could differ from those estimates.

(c) Cash and Cash Overdraft

On a daily basis, available funds are swept from depository accounts into a concentration account and used to repay borrowings under the Company’s commercial paper program. Cash principally represents the balance of customer checks that have not yet cleared through the banking system and become available to be swept into the concentration account, and deposits made subsequent to the daily cash sweep. The Company does not fund its disbursement accounts for checks it has written until the checks are presented to the bank for payment. Cash overdrafts represent the balance of outstanding checks and are classified with other current liabilities. There are no compensating balance requirements or other restrictions on the transfer of cash associated with the Company’s depository accounts.

(d) Allowance for Doubtful Accounts

The Company maintains an allowance for doubtful accounts, which includes sales returns, sales allowances and bad debts. The allowance adjusts the carrying value of trade receivables for the estimate of accounts that will ultimately not be collected. An allowance for doubtful accounts is generally established as trade receivables age beyond their due dates, whether as bad debts or as sales returns and allowances. As past due balances age, higher valuation allowances are established, thereby lowering the net carrying value of receivables. The amount of valuation allowance established for each past-due period reflects the Company’s historical collections experience, including that related to sales returns and allowances, as well as current economic conditions and trends. The Company also qualitatively establishes valuation allowances for specific problem accounts and bankruptcies, and other accounts that the Company deems relevant for specifically identified allowances. The amounts ultimately collected on past due trade receivables are subject to numerous factors including general economic conditions, the condition of the receivable portfolios assumed in acquisitions, the financial condition of individual customers and the terms of reorganization for accounts exiting bankruptcy. Changes in these conditions impact the Company’s collection experience and may result in the recognition of higher or lower valuation allowances.

(e) Inventories

Inventories are stated at the lower of cost or market. Cost is determined using the first-in, first-out (“FIFO”) and average-cost methods. Substantially all of the inventories are finished goods.

(f) Plant and Equipment

Plant and equipment are initially stated at cost. Long-lived assets, including plant and equipment, are reviewed for impairment whenever events or changes in circumstances indicate that the recorded values cannot be recovered from the undiscounted future cash flows. For impairment testing purposes, long-lived assets are grouped with other assets and liabilities at the lowest level for which independent identifiable cash flows are determinable. When the book value of an asset or group of assets exceeds the associated undiscounted expected future cash flows, it is considered to be potentially impaired and is written down to fair value, which is determined based on either discounted future cash flows or appraised values. The Company also leases property, plant and equipment, principally under operating leases. Rent expense for operating leases, which may have escalating rentals or rent holidays, is recorded on a straight-line basis over the respective lease terms.

The Company determines depreciation expense using the straight-line method based on the estimated useful lives of the related assets. The Company uses accelerated depreciation methods for tax purposes where appropriate. Depreciation expense is recognized on the Company’s plant and equipment in the consolidated statement of earnings line item “Depreciation.”

The Company capitalizes the interest cost associated with the development and construction of significant new plant and equipment and depreciates that amount over the lives of the related assets. Capitalized interest recorded for construction in progress during each of the years in the three-year period ended March 31, 2015 was not material.

(g) Computer Software

The Company capitalizes certain costs incurred to purchase or develop computer software for internal use. These costs include purchased software packages, payments to vendors and consultants for the development, implementation or modification of purchased software packages for Company use, payroll and related costs for employees associated with internal-use software projects, interest costs incurred in developing software for internal use, and software costs that allow for access or conversion of old data by new internal-use software. Capitalized computer software costs are included within plant and equipment on the Company’s consolidated balance sheets and depreciated over the estimated useful life of the computer software, which is generally three to ten years.

(h) Goodwill and Other Intangible Assets

Goodwill is an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. The Company is required to test goodwill associated with each of its reporting units for impairment at least annually and whenever events or circumstances indicate that it is more likely than not that goodwill may be impaired. The Company performs its annual goodwill impairment test as of October 31 of each year.

Other intangible assets primarily consist of non-competition agreements and customer relationships resulting from business acquisitions. Both non-competition agreements and customer relationships are recorded based on their acquisition date fair values. Non-competition agreements are amortized using the straight-line method over the respective terms of the agreements. Customer relationships are amortized using the straight-line method over their estimated useful lives, which range from seven to 25 years. The determination of the estimated benefit periods associated with customer relationships is based on an analysis of historical customer sales attrition information and other customer-related factors at the date of acquisition. There are no expected residual values related to the Company’s other intangible assets.

The Company evaluates the estimated benefit periods and recoverability of its other intangible assets when facts and circumstances indicate that the lives may not be appropriate and/or the carrying values of the asset group containing other intangible assets may not be recoverable through the projected undiscounted future cash flows of the group. If the carrying value of the asset group containing other intangible assets is not recoverable, impairment is measured as the amount by which the carrying value exceeds its estimated fair value. Fair value is determined using discounted cash flows or other techniques.

(i) Deferred Financing Costs

Financing costs related to the issuance of long-term debt are deferred and included in prepaid expenses and other current assets or in other non-current assets, depending upon the classification of the debt to which the costs relate. Deferred financing costs are amortized as interest expense over the term of the related debt instrument.

(j) Asset Retirement Obligations

The fair value of a liability for an asset retirement obligation is recognized in the period during which the asset is placed in service. The fair value of the liability is estimated using projected discounted cash flows. In subsequent periods, the retirement obligation is accreted to its future value, which is the estimate of the obligation at the asset retirement date. When the asset is placed in service, a corresponding retirement asset equal to the fair value of the retirement obligation is also recorded as part of the carrying amount of the related long-lived asset and depreciated over the asset’s useful life. The majority of the Company’s asset retirement obligations are related to the restoration costs associated with returning plant and bulk tank sites to their original condition upon termination of long-term leases or supply agreements. The Company’s asset retirement obligations totaled $20.4 million and $19.0 million at March 31, 2015 and 2014, respectively, and are reflected within other non-current liabilities on the Company’s consolidated balance sheets.

(k) Nonretirement Postemployment Benefits

The Company has a severance plan covering its eligible employees. The benefit payable under the plan is attributable to employee services rendered with benefits that accumulate over time. When employees are entitled to severance benefits as part of a restructuring plan (see Note 22) and the benefits are part of an ongoing benefit arrangement, a liability and associated charge is recognized when payment of the severance benefits becomes probable and estimable.

(l) Loss Contingencies

Liabilities for loss contingencies arising from claims, assessments, litigation and other sources are recorded when it is probable that a liability has been incurred and the amount of the claim, assessment or damages can be reasonably estimated.

The Company maintains business insurance programs with deductible limits, which cover workers’ compensation, business automobile and general liability claims. The Company accrues estimated losses using actuarial models and assumptions based on historical loss experience. The actuarial calculations used to estimate business insurance reserves are based on numerous assumptions, some of which are subjective. The Company will adjust its business insurance reserves, if necessary, in the event future loss experience differs from historical loss patterns.

(m) Income Taxes

Income taxes are accounted for under the asset and liability method. Deferred tax assets and liabilities are recognized for the future tax consequences attributable to differences between the financial statement carrying amounts of assets and liabilities and their respective tax bases, and operating loss carryforwards. Deferred tax assets and liabilities are measured using enacted tax rates expected to apply to taxable income in the years in which those temporary differences and operating loss carryforwards are expected to be recovered, settled or utilized. The effect on deferred tax assets and liabilities of a change in tax rates is recognized in income in the period that includes the enactment date. Valuation allowances are recorded to reduce deferred tax assets when it is more likely than not that a tax benefit will not be realized.

The Company recognizes the benefit of an income tax position only if it is more likely than not (greater than 50%) that the tax position will be sustained upon tax examination, based solely on the technical merits of the tax position. Otherwise, no benefit is recognized. The tax benefits recognized are measured based on the largest benefit that has a greater than 50% likelihood of being realized upon ultimate settlement. Additionally, the Company accrues interest and related penalties, if applicable, on all tax exposures for which reserves have been established consistent with jurisdictional tax laws. Interest and penalties are classified as income tax expense in the consolidated statements of earnings.

(n) Foreign Currency Translation

The functional currency of the Company’s foreign operations is the applicable local currency. The translation of foreign currencies into U.S. dollars is performed for balance sheet accounts using current exchange rates in effect at the balance sheet date and for revenue and expense accounts using average exchange rates during each reporting period. The gains or losses resulting from such translations are included in stockholders’ equity as a component of accumulated other comprehensive income. Gains and losses arising from foreign currency transactions are reflected in the consolidated statements of earnings as incurred.

(o) Treasury Stock

The Company records repurchases of its common stock for treasury at cost. Upon the reissuance of the Company’s common stock from treasury, differences between the proceeds from reissuance and the average cost of the treasury stock are credited or charged to capital in excess of par value to the extent of prior credits related to the reissuance of treasury stock. If no such credits exist, the differences are charged to retained earnings.

(p) Concentrations of Credit Risk

Financial instruments that potentially subject the Company to concentrations of credit risk consist principally of trade receivables. Concentrations of credit risk are limited due to the Company’s large number of customers and their dispersion across many industries primarily throughout North America. Credit terms granted to customers are generally net 30 days.

(q) Derivative Instruments and Hedging Activities

The Company manages its exposure to changes in market interest rates through the occasional use of interest rate derivative instruments, when deemed appropriate. The Company’s involvement with derivative instruments has been limited to interest rate swap and treasury rate lock agreements used to manage well-defined interest rate risk exposures. An interest rate swap is a contractual exchange of interest payments between two parties. A standard interest rate swap involves the payment of a fixed rate times a notional amount by one party in exchange for receiving a floating rate times the same notional amount from the other party. As interest rates change, the difference to be paid or received is accrued and recognized as interest expense or income over the life of the agreement. Treasury rate lock agreements are used to fix the interest rate related to forecasted debt issuances. Interest rate swap and treasury rate lock agreements are not entered into for trading purposes.

When the Company has derivative instruments outstanding, it monitors its positions as well as the credit ratings of its counterparties, including the potential for non-performance by the counterparties. The Company recognizes outstanding derivative instruments as either assets or liabilities at fair value on the consolidated balance sheet. Interest rate contracts have traditionally been designated as hedges and recorded at fair value, with changes in fair value recognized in either accumulated other comprehensive income or in the carrying value of the hedged portions of fixed-rate debt, as applicable. Gains and losses on derivative instruments representing hedge ineffectiveness were recognized immediately in the respective year’s earnings.

(r) Revenue Recognition

Revenue from sales of gases and hardgoods products is recognized when the product is shipped, the sales price is fixed or determinable and collectability is reasonably assured. Rental fees on cylinders, cryogenic liquid containers, bulk gas storage tanks and other equipment are recognized when earned. For contracts that contain multiple deliverables, principally product supply agreements for gases and container rental, revenue is recognized for each deliverable as a separate unit of accounting, with selling prices derived from Company specific or third-party evidence. For cylinder lease agreements in which rental fees are collected in advance, revenues are deferred and recognized over the respective terms of the lease agreements. Amounts billed for sales tax, value added tax or other transactional taxes imposed on revenue-producing transactions are presented on a net basis and are not recognized as revenue.

(s) Cost of Products Sold (Excluding Depreciation)

Cost of products sold (excluding depreciation) for the Distribution business segment includes the cost of direct materials, freight-in and maintenance costs associated with cylinders, cryogenic liquid containers and bulk tanks. Cost of products sold (excluding depreciation) related to gases produced by the Company’s air separation facilities includes direct manufacturing expenses, such as direct labor, power and overhead.

Cost of products sold (excluding depreciation) for the All Other Operations business segment principally consists of direct material costs, freight-in and direct manufacturing expenses, such as direct labor, power and overhead.

(t) Selling, Distribution and Administrative Expenses

Selling, distribution and administrative expenses consist of labor and overhead associated with the purchasing, marketing and distribution of the Company’s products, as well as costs associated with a variety of administrative functions such as legal, treasury, accounting and tax, and facility-related expenses.

(u) Shipping and Handling Fees and Distribution Costs

The Company recognizes delivery and freight charges to customers as elements of net sales. Costs of third-party freight-in are recognized as cost of products sold (excluding depreciation). The majority of the costs associated with the distribution of the Company’s products, which include labor and overhead associated with filling, warehousing and delivery by Company and third-party vehicles, are reflected in selling, distribution and administrative expenses and were $889 million, $850 million and $841 million for the fiscal years ended March 31, 2015, 2014 and 2013, respectively. The Company conducts multiple operations out of the same facilities and does not allocate facility-related expenses to each operational function. Accordingly, there is no facility-related expense in the distribution costs disclosed above. Depreciation expense associated with the Company’s delivery fleet of $32 million, $32 million and $30 million was recognized in depreciation for the fiscal years ended March 31, 2015, 2014 and 2013, respectively.

(v) Stock-based Compensation

The Company grants stock-based compensation awards in connection with its equity incentive and employee stock purchase plans. Stock-based compensation expense is generally recognized on a straight-line basis over the stated vesting period for each award, with accelerated vesting for retirement-eligible employees in accordance with the provisions of the equity incentive plan. See Note 13 for additional disclosures relating to stock-based compensation.

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Restructuring and Other Special Charges, Net (Narrative) (Details) (USD $) In Thousands, unless otherwise specified	1 Months Ended	12 Months Ended
	May 31, 2011 division companies	Mar. 31, 2013	Mar. 31, 2012
Restructuring Cost and Reserve [Line Items]
Number of regional companies consolidated into divisions	12
Number of new divisions resulting from restructuring	4
Restructuring costs		$ 1,523
Restructuring costs (benefits), net		(2,177)
Restructuring reserve, accrual adjustment		3,700
Other related costs		8,537
Intangible asset impairment charge		1,729
Severance Costs [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring costs		0	13,300
Restructuring reserve, accrual adjustment		$ 3,700

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Income Taxes (Components of Income Tax Expense) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Mar. 31, 2015	Mar. 31, 2014	Mar. 31, 2013
Current [Abstract]
Federal	$ 163,774	$ 184,308	$ 145,603
Foreign	2,010	4,561	7,042
State	17,410	19,121	13,589
Total current income tax expense	183,194	207,990	166,234
Deferred [Abstract]
Federal	24,499	(4,722)	26,993
Foreign	2,604	(1,127)	(975)
State	5,738	(1,020)	10,291
Total deferred income tax expense	32,841	(6,869)	36,309
Income tax expense	$ 216,035	$ 201,121	$ 202,543

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Fair Value Measurements (Tables)

12 Months Ended

Mar. 31, 2015

Fair Value Disclosures [Abstract]

Schedule of Assets and Liabilities Measured at Fair Value on a Recurring Basis

Assets and liabilities measured at fair value on a recurring basis at March 31, 2015 and 2014 are categorized in the tables below based on the lowest level of significant input to the valuation. During the periods presented, there were no transfers between fair value hierarchical levels.

	Balance at		Quoted prices in active markets Level 1		Significant other observable inputs Level 2		Significant unobservable inputs Level 3
(In thousands)	March 31, 2015
Assets:
Deferred compensation plan assets	$	16,288	$	16,288	$	—	$	—
Liabilities:
Deferred compensation plan liabilities	$	16,288	$	16,288	$	—	$	—

	Balance at		Quoted prices in active markets Level 1		Significant other observable inputs Level 2		Significant unobservable inputs Level 3
(In thousands)	March 31, 2014
Assets:
Deferred compensation plan assets	$	16,387	$	16,387	$	—	$	—
Liabilities:
Deferred compensation plan liabilities	$	16,387	$	16,387	$	—	$	—

Schedule of Assets and Liabilities Measured at Fair Value on a Nonrecurring Basis

Certain assets and liabilities are measured at fair value on a nonrecurring basis in periods subsequent to initial recognition. Assets measured at fair value on a nonrecurring basis during the year ended March 31, 2013 are categorized in the table below based on the lowest level of significant input to the valuation. Other than these remeasured assets, there were no assets or liabilities measured at fair value on a nonrecurring basis during the years ended March 31, 2015, 2014 and 2013.

	Quoted prices in active markets Level 1		Significant other observable inputs Level 2		Significant unobservable inputs Level 3		Total losses (year ended March 31, 2013
(In thousands)
Assets:
Other intangible assets	$	—	$	—	$	535	$	1,729

Schedule of Carrying Values and Estimated Fair Values of Debt Instruments

The carrying value of debt, which is reported on the Company’s consolidated balance sheets, generally reflects the cash proceeds received upon its issuance, net of subsequent repayments, plus the impact of the Company’s fair value hedges as applicable. The fair values of the fixed rate notes disclosed in the following table were determined based on quoted prices from the broker/dealer market, observable market inputs for similarly termed treasury notes adjusted for the Company’s credit spread and inputs management believes a market participant would use in determining imputed interest for obligations without a stated interest rate (Level 2). The fair values of the revolving credit borrowings, securitized receivables and commercial paper approximate their carrying values (see Note 9).

	Carrying Value at	Fair Value at	Carrying Value at	Fair Value at
(In thousands)	March 31, 2015	March 31, 2015	March 31, 2014	March 31, 2014
2014 Notes	—	—	399,952	407,092
2015 Notes	249,962	252,520	249,887	258,630
2016 Notes	249,918	254,953	249,848	259,257
2018 Notes	324,688	323,921	324,579	319,098
2020 Notes	274,791	274,821	274,748	265,600
2022 Notes	249,787	249,028	249,760	233,230
2024 Notes	299,462	310,500	—	—

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Summary by Business Segment

12 Months Ended

Mar. 31, 2015

Segment Reporting, Measurement Disclosures [Abstract]

Summary by Business Segment

SUMMARY BY BUSINESS SEGMENT

The Company identifies its businesses as separate operating segments for reporting purposes based on the review of discrete financial results for each of the businesses by the Company’s chief operating decision maker for performance assessment and resource allocation purposes. The Company aggregates its operating segments, based on products and services, into two business segments, Distribution and All Other Operations. The Distribution business segment represents the Company’s only reportable segment under GAAP, while the All Other Operations business segment represents the aggregation of all other operating segments of the Company not considered reportable under GAAP. The Distribution business segment consists of 21 operating segments, including fourteen regional gas and hardgoods distribution businesses, four gas companies that either produce or market gas products sold primarily through the Company’s regional distribution businesses, two companies that sell or provide safety-related products and services, and the Company’s rental welder business. The aggregation of the operating segments that form the Distribution business segment is based on the segment’s foundation as a national integrated distribution business providing a broad array of gas products and supporting services offered in all modes of gas distribution, from large bulk quantities to smaller quantities in cylinder or packaged form, as well as a broad complementary hardgoods product line. Although there have been minor internal organizational changes in certain operating segments that comprise the Distribution business segment, there were no changes to this reportable segment from the prior year.

The Distribution business segment’s principal products include industrial, medical and specialty gases sold in packaged and bulk quantities, as well as hardgoods. The Company’s air separation facilities and national specialty gas labs primarily produce gases that are sold by the regional distribution businesses. Gas sales include nitrogen, oxygen, argon, helium, hydrogen, welding and fuel gases such as acetylene, propylene and propane, carbon dioxide, nitrous oxide, ultra high purity grades, special application blends and process chemicals. Business units in the Distribution business segment also recognize rental revenue, derived from gas cylinders, cryogenic liquid containers, bulk storage tanks, tube trailers and welding and welding related equipment. Gas and rent represented 59%, 60% and 59% of the Distribution business segment’s sales in fiscal years 2015, 2014 and 2013, respectively. Hardgoods consist of welding consumables and equipment, safety products, construction supplies, and maintenance, repair and operating supplies. Hardgoods sales represented 41%, 40% and 41% of the Distribution business segment’s sales in fiscal years 2015, 2014 and 2013, respectively. The Distribution business segment accounted for approximately 90% of consolidated sales in each of the fiscal years 2015, 2014 and 2013.

The All Other Operations business segment consists of five operating segments, all of which primarily manufacture and/or distribute single gas product lines (carbon dioxide, dry ice, nitrous oxide, ammonia and refrigerant gases). The operating segments reflected in the All Other Operations business segment individually do not meet the thresholds to be reported as separate reportable segments. Elimination entries represent intercompany sales from the Company’s All Other Operations business segment to its Distribution business segment.

The Company’s operations are predominantly in the United States. While the Company does conduct operations outside of the United Statesin Canada, Mexico, Russia, Dubai and several European countries, revenues from foreign countries represent less than2%of the Company’s net sales. Revenues derived from foreign countries, based on the point of sale, were $93 million, $88 million and $87 million in the fiscal years ended March 31, 2015, 2014 and 2013, respectively. Long-lived assets attributable to the Company’s foreign operations represent less than 5% of the consolidated total long-lived assets of the Company and were $143 million, $148 million and $133 million at March 31, 2015, 2014 and 2013, respectively. Long-lived assets primarily consist of plant and equipment, net. The Company’s customer base is diverse with its largest customer accounting for less than 1% of total net sales.

Business segment information for the Company’s Distribution and All Other Operations business segments is presented in the following tables for the years ended March 31, 2015, 2014 and 2013. The accounting policies of the business segments are the same as those described in the Summary of Significant Accounting Policies (Note 1). Although corporate operating expenses are generally allocated to each business segment based on sales dollars, the Company reports expenses (excluding depreciation) related to the implementation of its SAP system under selling, distribution and administrative expenses in the “Eliminations and Other” column. Additionally, the Company’s restructuring and other special charges, net, are not allocated to the Company’s business segments, and are also reflected in the “Eliminations and Other” column. Corporate assets have been allocated to the Distribution business segment, intercompany sales are recorded on the same basis as sales to third parties, and intercompany transactions are eliminated in consolidation. See Note 3 for the impact of acquisitions on the operating results of each business segment. Management utilizes more than one measurement and multiple views of data to measure segment performance and to allocate resources to the segments. However, the predominant measurements are consistent with the Company’s consolidated financial statements and, accordingly, are reported on the same basis in the following tables.

			Year Ended
	March 31, 2015
(In thousands)	Distribution		All Other Ops.		Eliminations and Other			Total
Gas and rent	$	2,823,297	$	556,941	$	(29,219	)	$	3,351,019
Hardgoods	1,950,192		3,681		(7		)	1,953,866
Net sales (a)	4,773,489		560,622		(29,226		)	5,304,885
Cost of products sold (excluding depreciation) (a)	2,092,466		292,635		(29,226		)	2,355,875
Selling, distribution and administrative expenses	1,792,116		186,558		—			1,978,674
Depreciation	272,200		25,510		—			297,710
Amortization	27,373		3,975		—			31,348
Total costs and expenses	4,184,155		508,678		(29,226		)	4,663,607
Operating income	$	589,334	$	51,944	$	—		$	641,278
Assets	$	5,397,535	$	576,075	$	—		$	5,973,610
Capital expenditures	$	438,867	$	29,922	$	—		$	468,789
	Year Ended
	March 31, 2014
(In thousands)	Distribution		All Other Ops.		Eliminations and Other			Total
Gas and rent	$	2,717,272	$	539,954	$	(30,404	)	$	3,226,822
Hardgoods	1,841,518		4,200		(3		)	1,845,715
Net sales (a)	4,558,790		544,154		(30,407		)	5,072,537
Cost of products sold (excluding depreciation) (a)	1,996,065		281,916		(30,407		)	2,247,574
Selling, distribution and administrative expenses	1,705,408		176,289		7,426			1,889,123
Depreciation	252,329		23,132		—			275,461
Amortization	25,512		4,333		—			29,845
Total costs and expenses	3,979,314		485,670		(22,981		)	4,442,003
Operating income	$	579,476	$	58,484	$	(7,426	)	$	630,534
Assets	$	5,222,781	$	570,533	$	—		$	5,793,314
Capital expenditures	$	317,066	$	37,521	$	—		$	354,587
	Year Ended
	March 31, 2013
(In thousands)	Distribution		All Other Ops.		Eliminations and Other			Total
Gas and rent	$	2,577,901	$	587,322	$	(34,201	)	$	3,131,022
Hardgoods	1,820,204		6,276		(5		)	1,826,475
Net sales (a)	4,398,105		593,598		(34,206		)	4,957,497
Cost of products sold (excluding depreciation) (a)	1,958,573		311,200		(34,206		)	2,235,567
Selling, distribution and administrative expenses	1,620,651		174,643		33,230			1,828,524
Restructuring and other special charges, net	—		—		8,089			8,089
Depreciation	240,167		21,455		—			261,622
Amortization	22,297		4,981		—			27,278
Total costs and expenses	3,841,688		512,279		7,113			4,361,080
Operating income	$	556,417	$	81,319	$	(41,319	)	$	596,417
Assets	$	5,047,042	$	571,183	$	—		$	5,618,225
Capital expenditures	$	300,431	$	25,034	$	—		$	325,465

____________________

^(a)  Amounts in the “Eliminations and Other” column represent the elimination of intercompany sales and associated gross profit on sales from the Company’s All Other Operations business segment to its Distribution business segment.

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Supplemental Cash Flow Information

12 Months Ended

Mar. 31, 2015

Supplemental Cash Flow Information [Abstract]

Supplemental Cash Flow Information

SUPPLEMENTAL CASH FLOW INFORMATION

Cash Paid for Interest and Income Taxes

Cash paid for interest and income taxes was as follows:

	Years Ended March 31,
(In thousands)	2015		2014		2013
Interest paid	$	62,986	$	86,479	$	66,569
Income taxes, net of refunds	194,161		164,482		133,951

Noncash Investing and Financing Activities

Liabilities assumed and stock issued as a result of acquisitions were as follows:

	Years Ended March 31,
(In thousands)	2015			2014			2013
Fair value of assets acquired	$	66,626		$	218,413		$	115,402
Net cash paid for acquisitions (a)	(51,827		)	(205,370		)	(97,521		)
Stock issued for acquisition (b)	(4,458		)	—			—
Liabilities assumed	$	10,341		$	13,043		$	17,881

____________________

^(a)  Includes cash paid, net of cash acquired, for current year acquisitions as well as payments for the settlement of holdback liabilities and contingent consideration arrangements associated with prior year acquisitions.

^(b)  Represents shares of Airgas, Inc. common stock issued in connection with a single acquisition – see Note 3 for further information.

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Earnings Per Share (Details) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended																12 Months Ended
	Mar. 31, 2015		Dec. 31, 2014		Sep. 30, 2014		Jun. 30, 2014		Mar. 31, 2014		Dec. 31, 2013		Sep. 30, 2013		Jun. 30, 2013		Mar. 31, 2015	Mar. 31, 2014	Mar. 31, 2013
Earnings Per Share [Abstract]
Anti-dilutive securities excluded from the Company's diluted earnings per share																	1,700,000	1,500,000	1,300,000
Net earnings	$ 87,723	[1]	$ 93,199	[1]	$ 98,312	[1]	$ 88,852	[1]	$ 88,357	[1]	$ 82,759	[1]	$ 94,982	[1]	$ 84,686	[1]	$ 368,086	$ 350,784	$ 340,874
Basic shares outstanding																	74,702,000	73,623,000	76,651,000
Basic earnings per share	$ 1.17	[2]	$ 1.25	[2]	$ 1.32	[2]	$ 1.20	[2]	$ 1.19	[2]	$ 1.12	[2]	$ 1.29	[2]	$ 1.16	[2]	$ 4.93	$ 4.76	$ 4.45
Incremental shares from assumed exercises of stock options and options under the ESPP																	1,149,000	1,287,000	1,656,000
Diluted shares outstanding																	75,851,000	74,910,000	78,307,000
Diluted earnings per share	$ 1.15	[2]	$ 1.23	[2]	$ 1.30	[2]	$ 1.18	[2]	$ 1.17	[2]	$ 1.10	[2]	$ 1.27	[2]	$ 1.14	[2]	$ 4.85	$ 4.68	$ 4.35

[1] Net earnings include the impact of the following non-operating items (after tax)

[2] Earnings per share calculations for each of the quarters are based on the weighted average number of shares outstanding in each quarter. Therefore, the sum of the quarterly earnings per share does not necessarily equal the full year earnings per share disclosed on the consolidated statements of earnings.

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Acquisitions and Divestitures (Summary of the Consideration Transferred and the Fair Values of the Assets Acquired and Liabilities Assumed) (Details) (USD $) In Thousands, except Share data, unless otherwise specified	12 Months Ended
	Mar. 31, 2015		Mar. 31, 2014		Mar. 31, 2013
Consideration
Cash	$ 51,382		$ 203,529		$ 97,521
Recognized amounts of identifiable assets acquired and liabilities assumed
Goodwill	1,313,644		1,289,896		1,195,613
Series of Individually Immaterial Business Acquisitions [Member]
Consideration
Cash	51,827	[1]	205,370	[1]	97,521	[1]
Airgas, Inc. common stock	4,458	[2]
Fair value of total consideration transferred	56,285
Recognized amounts of identifiable assets acquired and liabilities assumed
Current assets, net	9,708		14,640		15,175
Plant and equipment	13,824		48,173		25,209
Other intangible assets	16,162		60,190		40,813
Current liabilities	(5,815)		(4,722)		(13,124)
Non-current liabilities	(4,526)		(8,321)		(4,757)
Total identifiable net assets	29,353		109,960		63,316
Goodwill	26,932		95,410		34,205
Recognized amounts of identifiable assets acquired, goodwill, and liabilities assumed, net	56,285		205,370		97,521
Number of shares of Airgas, Inc. common stock issued in connection with an acquisition	41,060
Distribution Business Segment [Member]
Recognized amounts of identifiable assets acquired and liabilities assumed
Goodwill	1,116,569		1,092,728		998,128
Distribution Business Segment [Member] | Series of Individually Immaterial Business Acquisitions [Member]
Consideration
Cash	50,774	[1]	204,957	[1]	93,555	[1]
Airgas, Inc. common stock	4,458	[2]
Fair value of total consideration transferred	55,232
Recognized amounts of identifiable assets acquired and liabilities assumed
Current assets, net	9,705		14,631		14,627
Plant and equipment	13,824		48,919		24,191
Other intangible assets	15,122		60,190		38,658
Current liabilities	(5,765)		(6,088)		(10,990)
Non-current liabilities	(4,526)		(8,321)		(4,035)
Total identifiable net assets	28,360		109,331		62,451
Goodwill	26,872		95,626		31,104
Recognized amounts of identifiable assets acquired, goodwill, and liabilities assumed, net	55,232		204,957		93,555
All Other Operations Business Segment [Member]
Recognized amounts of identifiable assets acquired and liabilities assumed
Goodwill	197,075		197,168		197,485
All Other Operations Business Segment [Member] | Series of Individually Immaterial Business Acquisitions [Member]
Consideration
Cash	1,053	[1]	413	[1]	3,966	[1]
Airgas, Inc. common stock	0	[2]
Fair value of total consideration transferred	1,053
Recognized amounts of identifiable assets acquired and liabilities assumed
Current assets, net	3		9		548
Plant and equipment	0		(746)		1,018
Other intangible assets	1,040		0		2,155
Current liabilities	(50)		1,366		(2,134)
Non-current liabilities	0		0		(722)
Total identifiable net assets	993		629		865
Goodwill	60		(216)		3,101
Recognized amounts of identifiable assets acquired, goodwill, and liabilities assumed, net	$ 1,053		$ 413		$ 3,966

[1] Includes cash paid, net of cash acquired, for current year acquisitions as well as payments for the settlement of holdback liabilities and contingent consideration arrangements associated with prior year acquisitions.

[2] Represents 41,060 shares of Airgas, Inc. common stock issued in connection with a single acquisition. The fair value of the shares issued as part of the consideration for the acquisition was determined based on the closing sales price of Airgas, Inc. common stock on the acquisition date.

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Stockholders' Equity (Tables)

12 Months Ended

Mar. 31, 2015

Stockholders' Equity Note [Abstract]

Schedule of Accumulated Other Comprehensive Income (Loss)

The following table presents the gross and net changes in the balances within each component of AOCI for each of the years in the three-year period ended March 31, 2015.

(In thousands)	Foreign Currency Translation Adjustments			Treasury Rate Lock Agreement			Total Accumulated Other Comprehensive Income (Loss)
Balance at March 31, 2012	$	6,527		$	(1,141	)	$	5,386
Other comprehensive income (loss) before reclassifications	(1,274		)	—			(1,274		)
Amounts reclassified from AOCI (a)	—			517			517
Tax effect of other comprehensive income items	—			(191		)	(191		)
Other comprehensive income (loss), net of tax	(1,274		)	326			(948		)
Balance at March 31, 2013	5,253			(815		)	4,438
Other comprehensive income (loss) before reclassifications	(4,235		)	—			(4,235		)
Amounts reclassified from AOCI (a)	—			517			517
Tax effect of other comprehensive income items	—			(191		)	(191		)
Other comprehensive income (loss), net of tax	(4,235		)	326			(3,909		)
Balance at March 31, 2014	1,018			(489		)	529
Other comprehensive income (loss) before reclassifications	(15,708		)	—			(15,708		)
Amounts reclassified from AOCI (a)	—			517			517
Tax effect of other comprehensive income items	—			(191		)	(191		)
Other comprehensive income (loss), net of tax	(15,708		)	326			(15,382		)
Balance at March 31, 2015	$	(14,690	)	$	(163	)	$	(14,853	)

___________________

^(a)  The reclassifications out of AOCI were associated with a loss on a treasury rate lock agreement from July 2010 related to the issuance of the Company’s 2015 Notes, which is being reclassified into earnings (interest expense) over the term of the 2015 Notes. The effects on the respective line items of the consolidated statements of earnings impacted by the reclassifications were not material for the twelve months endedMarch 31, 2015, 2014 and 2013.

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Restructuring and Other Special Charges, Net

12 Months Ended

Mar. 31, 2015

Restructuring Charges [Abstract]

Restructuring and Other Special Charges, Net

RESTRUCTURING AND OTHER SPECIAL CHARGES, NET

The Company incurred no restructuring and other special charges, including asset impairment charges, for the years ended March 31, 2015 and 2014. The following table presents the components of restructuring and other special charges, net, for the year ended March 31, 2013:

	Year Ended March 31,
(In thousands)	2013
Restructuring costs (benefits), net	$	(2,177	)
Other related costs	8,537
Intangible asset impairment charge	1,729
Total restructuring and other special charges, net	$	8,089

Restructuring Costs (Benefits), Net

In May 2011, the Company announced the alignment of its thentwelveregional distribution companies intofournew divisions, and the consolidation of its regional company accounting and certain administrative functions intofournewly created Business Support Centers (“BSCs”). Additionally, the Company initiated a related change in its legal entity structure on January 1, 2012 whereby each Airgas regional distribution company would merge, once converted to SAP, into a single limited liability company (“LLC”) of which Airgas, Inc. is the sole member. Prior to conversion to SAP, each of the Company’stwelveregional distribution companies operated its own accounting and administrative functions. Enabled by the Company’s conversion to a single information platform across all of its regional distribution businesses as part of the SAP implementation, the restructuring allows Airgas to more effectively utilize its resources across its regional distribution businesses and form an operating structure to leverage the full benefits of its new SAP platform. As a result of the realignment plan, the Company recorded an initial restructuring charge of $13.3 million during the year ended March 31, 2012 for severance benefits expected to be paid under the Airgas, Inc. Severance Pay Plan to employees whose jobs were eliminated as a result of the realignment.

During the year ended March 31, 2013, the Company recorded$2.2 millionin net restructuring benefits. In fiscal 2013, the Company re-evaluated its remaining severance liability related to the divisional realignment and, as a result of this analysis, reduced its severance liability by$3.7 million. The change in estimate was driven by fewer than expected individuals meeting the requirements to receive severance benefits. This reduction was due to both the retention of employees through relocation or acceptance of new positions, as well as former associates who chose not to remain with the Company through their designated separation dates. Offsetting the benefit from the reduction to the severance liability were additional restructuring costs of$1.5 million, primarily related to relocation and other costs.

Restructuring costs related to the plan were not allocated to the Company’s business segments (see Note 21). The activity in the accrued liability balances associated with the restructuring plan was as follows for the years ended March 31, 2015, 2014 and 2013:

(In thousands)	Severance Costs			Facility Exit and Other Costs			Total
Balance at March 31, 2012	$	13,138		$	990		$	14,128
Restructuring charges	—			1,523			1,523
Cash payments	(4,756		)	(2,199		)	(6,955		)
Other adjustments	(3,700		)	—			(3,700		)
Balance at March 31, 2013	$	4,682		$	314		$	4,996
Cash payments and other adjustments	(3,321		)	(237		)	(3,558		)
Balance at March 31, 2014	$	1,361		$	77		$	1,438
Cash payments and other adjustments	(1,361		)	(77		)	(1,438		)
Balance at March 31, 2015	$	—		$	—		$	—

As ofMarch 31, 2013, the divisional alignment was complete and all material costs related to the restructuring had been incurred. The remaining accrued liability balances associated with the restructuring plan at March 31, 2013 were subsequently paid during the years ended March 31, 2014 and 2015.

Other Related Costs

For the year ended March 31, 2013, the Company also incurred $8.5 million of other costs related to the divisional alignment and LLC formation. These costs primarily related to transition staffing for the BSCs, legal costs and other expenses associated with the Company’s organizational and legal entity changes.

Asset Impairment Charge

As a result of an impairment analysis performed on the long-lived assets associated with a reporting unit in the Company’s All Other Operations business segment, the Company recorded a charge of $1.7 million related to certain of the intangible assets associated with this business during the year ended March 31, 2013 – see Note 7 for further information. The charge was not allocated to the Company’s business segments (see Note 21).

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Supplementary Information (Unaudited)

12 Months Ended

Mar. 31, 2015

Selected Quarterly Financial Information [Abstract]

Supplementary Information (Unaudited)

SUPPLEMENTARY INFORMATION (UNAUDITED)

The following table summarizes the unaudited results of operations for each quarter of fiscal 2015 and 2014:

(In thousands, except per share amounts)	First		Second		Third		Fourth
2015
Net sales	$	1,313,587	$	1,357,755	$	1,331,820	$	1,301,723
Operating income	155,081		175,781		162,886		147,530
Net earnings	88,852		98,312		93,199		87,723
Basic earnings per share (a)	$	1.20	$	1.32	$	1.25	$	1.17
Diluted earnings per share (a)	$	1.18	$	1.30	$	1.23	$	1.15
2014
Net sales	$	1,279,891	$	1,281,970	$	1,242,846	$	1,267,830
Operating income	156,614		168,769		154,919		150,232
Net earnings (b)	84,686		94,982		82,759		88,357
Basic earnings per share (a)	$	1.16	$	1.29	$	1.12	$	1.19
Diluted earnings per share (a)	$	1.14	$	1.27	$	1.10	$	1.17

____________________

^(a)  Earnings per share calculations for each of the quarters are based on the weighted average number of shares outstanding in each quarter. Therefore, the sum of the quarterly earnings per share does not necessarily equal the full year earnings per share disclosed on the consolidated statements of earnings.

^(b)  Net earnings include the impact of the following non-operating items (after tax):

(In thousands)	First		Second			Third		Fourth
2014
Loss on the extinguishment of debt (Note 9)	$	—	$	—		$	5,646	$	—
State income tax benefits (c)	—		(1,493		)	—		(1,800		)

^(c)  During the three months ended September 30, 2013, the Company recognized a $1.5 million tax benefit related to a change in a state income tax law, allowing the Company to utilize additional net operating loss carryforwards. During the three months ended March 31, 2014, the Company recognized an additional $1.8 million of tax benefits related to enacted changes in state income tax rates.

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Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Mar. 31, 2015	Mar. 31, 2014	Mar. 31, 2013
CASH FLOWS FROM OPERATING ACTIVITIES
Net earnings	$ 368,086	$ 350,784	$ 340,874
Adjustments to reconcile net earnings to net cash provided by operating activities:
Depreciation	297,710	275,461	261,622
Amortization	31,348	29,845	27,278
Impairment	0	0	1,729
Deferred income taxes	32,841	(6,869)	36,309
Loss (gain) on sales of plant and equipment	(3,137)	(1,264)	(1,551)
Gain on sale of businesses	0	0	(6,822)
Stock-based compensation expense	30,027	28,961	27,053
Loss on the extinguishment of debt	0	9,150	0
Changes in assets and liabilities, excluding effects of business acquisitions and divestitures:
Trade receivables, net	(925)	20,030	(42,485)
Inventories, net	5,091	2,291	(62,317)
Prepaid expenses and other current assets	(31,935)	41,408	(14,706)
Accounts payable, trade	4,954	4,732	(2,636)
Accrued expenses and other current liabilities	(3,377)	(4,463)	(8,090)
Other, net	(12,646)	(5,206)	(5,990)
Net cash provided by operating activities	718,037	744,860	550,268
CASH FLOWS FROM INVESTING ACTIVITIES
Capital expenditures	(468,789)	(354,587)	(325,465)
Proceeds from sales of plant, equipment and businesses	23,083	15,483	31,413
Business acquisitions and holdback settlements	(51,382)	(203,529)	(97,521)
Other, net	325	(951)	(1,286)
Net cash used in investing activities	(496,763)	(543,584)	(392,859)
CASH FLOWS FROM FINANCING ACTIVITIES
Net increase (decrease) in short-term debt	(62,776)	387,352	(388,452)
Proceeds from borrowings of long-term debt	317,423	135,861	862,832
Repayment of long-term debt	(415,907)	(636,587)	(21,428)
Financing costs	(5,445)	0	(6,697)
Premium paid on redemption of senior subordinated notes	0	(7,676)	0
Purchase of treasury stock	0	(8,127)	(591,873)
Proceeds from the exercise of stock options	54,280	38,310	88,700
Stock issued for the Employee Stock Purchase Plan	17,940	17,313	17,088
Excess tax benefit realized from the exercise of stock options	16,045	13,668	36,160
Dividends paid to stockholders	(164,517)	(141,461)	(122,202)
Change in cash overdraft and other	2,846	(16,754)	10,186
Net cash used in financing activities	(240,111)	(218,101)	(115,686)
Change in cash	(18,837)	(16,825)	41,723
Cash - Beginning of period	69,561	86,386	44,663
Cash - End of period	$ 50,724	$ 69,561	$ 86,386

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Subsequent Event

12 Months Ended

Mar. 31, 2015

Subsequent Events [Abstract]

Subsequent Event

SUBSEQUENT EVENT

On April 7, 2015, the Company announced that its Board of Directors declared a regular quarterly cash dividend of $0.60 per share. The dividend is payable on June 30, 2015 to stockholders of record as of June 15, 2015.

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Fair Value Measurements (Assets and Liabilities Measured at Fair Value on a Recurring Basis) (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Assets, Fair Value Disclosure [Abstract]
Deferred compensation plan assets	$ 16,300	$ 16,400
Liabilities, Fair Value Disclosure [Abstract]
Deferred compensation plan liabilities	16,300	16,400
Fair Value, Measurements, Recurring [Member]
Assets, Fair Value Disclosure [Abstract]
Deferred compensation plan assets	16,288	16,387
Liabilities, Fair Value Disclosure [Abstract]
Deferred compensation plan liabilities	16,288	16,387
Fair Value, Measurements, Recurring [Member] | Quoted prices in active markets Level 1 [Member]
Assets, Fair Value Disclosure [Abstract]
Deferred compensation plan assets	16,288	16,387
Liabilities, Fair Value Disclosure [Abstract]
Deferred compensation plan liabilities	16,288	16,387
Fair Value, Measurements, Recurring [Member] | Significant other observable inputs Level 2 [Member]
Assets, Fair Value Disclosure [Abstract]
Deferred compensation plan assets	0	0
Liabilities, Fair Value Disclosure [Abstract]
Deferred compensation plan liabilities	0	0
Fair Value, Measurements, Recurring [Member] | Significant unobservable inputs Level 3 [Member]
Assets, Fair Value Disclosure [Abstract]
Deferred compensation plan assets	0	0
Liabilities, Fair Value Disclosure [Abstract]
Deferred compensation plan liabilities	$ 0	$ 0

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Summary by Business Segment (Financial Information by Segment) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended								12 Months Ended
	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2015		Mar. 31, 2014		Mar. 31, 2013
Segment Reporting Information [Line Items]
Net sales	$ 1,301,723	$ 1,331,820	$ 1,357,755	$ 1,313,587	$ 1,267,830	$ 1,242,846	$ 1,281,970	$ 1,279,891	$ 5,304,885		$ 5,072,537		$ 4,957,497
Cost of products sold (excluding depreciation)									2,355,875		2,247,574		2,235,567
Selling, distribution and administrative expenses									1,978,674		1,889,123		1,828,524
Restructuring and other special charges, net									0		0		8,089
Depreciation									297,710		275,461		261,622
Amortization									31,348		29,845		27,278
Total costs and expenses									4,663,607		4,442,003		4,361,080
Operating income	147,530	162,886	175,781	155,081	150,232	154,919	168,769	156,614	641,278		630,534		596,417
Assets	5,973,610				5,793,314				5,973,610		5,793,314		5,618,225
Capital expenditures									468,789		354,587		325,465
Gas and Rent [Member]
Segment Reporting Information [Line Items]
Net sales									3,351,019		3,226,822		3,131,022
Hardgoods [Member]
Segment Reporting Information [Line Items]
Net sales									1,953,866		1,845,715		1,826,475
Operating Segments [Member] | Distribution Business Segment [Member]
Segment Reporting Information [Line Items]
Net sales									4,773,489		4,558,790		4,398,105
Cost of products sold (excluding depreciation)									2,092,466		1,996,065		1,958,573
Selling, distribution and administrative expenses									1,792,116		1,705,408		1,620,651
Restructuring and other special charges, net													0
Depreciation									272,200		252,329		240,167
Amortization									27,373		25,512		22,297
Total costs and expenses									4,184,155		3,979,314		3,841,688
Operating income									589,334		579,476		556,417
Assets	5,397,535				5,222,781				5,397,535		5,222,781		5,047,042
Capital expenditures									438,867		317,066		300,431
Operating Segments [Member] | Distribution Business Segment [Member] | Gas and Rent [Member]
Segment Reporting Information [Line Items]
Net sales									2,823,297		2,717,272		2,577,901
Operating Segments [Member] | Distribution Business Segment [Member] | Hardgoods [Member]
Segment Reporting Information [Line Items]
Net sales									1,950,192		1,841,518		1,820,204
Operating Segments [Member] | All Other Operations Business Segment [Member]
Segment Reporting Information [Line Items]
Net sales									560,622		544,154		593,598
Cost of products sold (excluding depreciation)									292,635		281,916		311,200
Selling, distribution and administrative expenses									186,558		176,289		174,643
Restructuring and other special charges, net													0
Depreciation									25,510		23,132		21,455
Amortization									3,975		4,333		4,981
Total costs and expenses									508,678		485,670		512,279
Operating income									51,944		58,484		81,319
Assets	576,075				570,533				576,075		570,533		571,183
Capital expenditures									29,922		37,521		25,034
Operating Segments [Member] | All Other Operations Business Segment [Member] | Gas and Rent [Member]
Segment Reporting Information [Line Items]
Net sales									556,941		539,954		587,322
Operating Segments [Member] | All Other Operations Business Segment [Member] | Hardgoods [Member]
Segment Reporting Information [Line Items]
Net sales									3,681		4,200		6,276
Eliminations and Other [Member]
Segment Reporting Information [Line Items]
Net sales									(29,226)	[1]	(30,407)	[1]	(34,206)	[1]
Cost of products sold (excluding depreciation)									(29,226)	[1]	(30,407)	[1]	(34,206)	[1]
Selling, distribution and administrative expenses									0		7,426		33,230
Restructuring and other special charges, net													8,089
Depreciation									0		0		0
Amortization									0		0		0
Total costs and expenses									(29,226)		(22,981)		7,113
Operating income									0		(7,426)		(41,319)
Assets	0				0				0		0		0
Capital expenditures									0		0		0
Eliminations and Other [Member] | Gas and Rent [Member]
Segment Reporting Information [Line Items]
Net sales									(29,219)		(30,404)		(34,201)
Eliminations and Other [Member] | Hardgoods [Member]
Segment Reporting Information [Line Items]
Net sales									$ (7)		$ (3)		$ (5)

[1] Amounts in the “Eliminations and Other” column represent the elimination of intercompany sales and associated gross profit on sales from the Company’s All Other Operations business segment to its Distribution business segment.

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Accrued Expenses and Other Current Liabilities (Tables)

12 Months Ended

Mar. 31, 2015

Accrued Liabilities and Other Liabilities [Abstract]

Schedule of Accrued Expenses and Other Current Liabilities

Accrued expenses and other current liabilities include:

(In thousands)	March 31, 2015		March 31, 2014
Accrued payroll and employee benefits	$	98,547	$	92,038
Business insurance reserves (a)	49,934		49,372
Taxes other than income taxes	22,863		25,183
Cash overdraft	71,537		68,245
Deferred rental revenue	34,538		34,557
Accrued interest	12,860		11,335
Other accrued expenses and current liabilities	56,600		64,946
	$	346,879	$	345,676

____________________

^(a)  With respect to the business insurance reserves above, the Company had corresponding insurance receivables of $11.6 million at March 31, 2015 and $11.8 million at March 31, 2014, which are included within the “Prepaid expenses and other current assets” line item on the Company’s consolidated balance sheets. The insurance receivables represent the balance of probable claim losses in excess of the Company’s deductible for which the Company is fully insured.

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Supplementary Information (Unaudited) (Tables)

12 Months Ended

Mar. 31, 2015

Selected Quarterly Financial Information [Abstract]

Summary of Unaudited Results of Operations for Each Fiscal Quarter

The following table summarizes the unaudited results of operations for each quarter of fiscal 2015 and 2014:

(In thousands, except per share amounts)	First		Second		Third		Fourth
2015
Net sales	$	1,313,587	$	1,357,755	$	1,331,820	$	1,301,723
Operating income	155,081		175,781		162,886		147,530
Net earnings	88,852		98,312		93,199		87,723
Basic earnings per share (a)	$	1.20	$	1.32	$	1.25	$	1.17
Diluted earnings per share (a)	$	1.18	$	1.30	$	1.23	$	1.15
2014
Net sales	$	1,279,891	$	1,281,970	$	1,242,846	$	1,267,830
Operating income	156,614		168,769		154,919		150,232
Net earnings (b)	84,686		94,982		82,759		88,357
Basic earnings per share (a)	$	1.16	$	1.29	$	1.12	$	1.19
Diluted earnings per share (a)	$	1.14	$	1.27	$	1.10	$	1.17

____________________

^(a)  Earnings per share calculations for each of the quarters are based on the weighted average number of shares outstanding in each quarter. Therefore, the sum of the quarterly earnings per share does not necessarily equal the full year earnings per share disclosed on the consolidated statements of earnings.

Schedule of Other Nonoperating Expense, by Component, by Quarter

Net earnings include the impact of the following non-operating items (after tax):

(In thousands)	First		Second			Third		Fourth
2014
Loss on the extinguishment of debt (Note 9)	$	—	$	—		$	5,646	$	—
State income tax benefits (c)	—		(1,493		)	—		(1,800		)

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Accrued Expenses and Other Current Liabilities (Details) (USD $)	Mar. 31, 2015		Mar. 31, 2014
Accrued Liabilities and Other Liabilities [Abstract]
Accrued payroll and employee benefits	$ 98,547,000		$ 92,038,000
Business insurance reserves	49,934,000	[1]	49,372,000	[1]
Taxes other than income taxes	22,863,000		25,183,000
Cash overdraft	71,537,000		68,245,000
Deferred rental revenue	34,538,000		34,557,000
Accrued interest	12,860,000		11,335,000
Other accrued expenses and current liabilities	56,600,000		64,946,000
Accrued expenses and other current liabilities (Note 8)	346,879,000		345,676,000
Insurance receivables	$ 11,600,000		$ 11,800,000

[1] With respect to the business insurance reserves above, the Company had corresponding insurance receivables of $11.6 million at March 31, 2015 and $11.8 million at March 31, 2014, which are included within the “Prepaid expenses and other current assets” line item on the Company’s consolidated balance sheets. The insurance receivables represent the balance of probable claim losses in excess of the Company’s deductible for which the Company is fully insured.

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Consolidated Statements of Earnings (USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	Mar. 31, 2015	Mar. 31, 2014	Mar. 31, 2013
Net sales	$ 5,304,885	$ 5,072,537	$ 4,957,497
Costs and Expenses:
Cost of products sold (excluding depreciation)	2,355,875	2,247,574	2,235,567
Selling, distribution and administrative expenses	1,978,674	1,889,123	1,828,524
Restructuring and other special charges, net (Note 22)	0	0	8,089
Depreciation	297,710	275,461	261,622
Amortization (Note 7)	31,348	29,845	27,278
Total costs and expenses	4,663,607	4,442,003	4,361,080
Operating Income	641,278	630,534	596,417
Interest expense, net (Note 14)	(62,232)	(73,698)	(67,494)
Loss on the extinguishment of debt (Note 9)	0	(9,150)	0
Other income, net	5,075	4,219	14,494
Earnings before income taxes	584,121	551,905	543,417
Income taxes (Note 5)	(216,035)	(201,121)	(202,543)
Net Earnings	$ 368,086	$ 350,784	$ 340,874
Net Earnings Per Common Share (Note 15):
Basic earnings per share	$ 4.93	$ 4.76	$ 4.45
Diluted earnings per share	$ 4.85	$ 4.68	$ 4.35
Weighted Average Shares Outstanding:
Basic	74,702	73,623	76,651
Diluted	75,851	74,910	78,307

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Stock-Based Compensation (Tables)

12 Months Ended

Mar. 31, 2015

Share-based Compensation, Allocation and Classification in Financial Statements [Abstract]

Schedule of Stock-Based Compensation Expense Recognized by Plan

The Company recognizes stock-based compensation expense for its equity incentive plan and Employee Stock Purchase Plan. The following table summarizes stock-based compensation expense recognized by the Company in each of the years in the three-year period ended March 31, 2015.

	Years Ended March 31,
(In thousands)	2015			2014			2013
Stock-based compensation expense related to:
Equity Incentive Plan	$	25,935		$	24,892		$	22,969
Employee Stock Purchase Plan - options to purchase stock	4,092			4,069			4,084
	30,027			28,961			27,053
Tax benefit	(10,624		)	(10,392		)	(9,338		)
Stock-based compensation expense, net of tax	$	19,403		$	18,569		$	17,715

Schedule of Stock Option Grant Assumptions

The following assumptions were used by the Company in valuing the stock options grants issued in each fiscal year:

	Fiscal 2015		Fiscal 2014		Fiscal 2013
Expected volatility	34.3	%	40.5	%	40.1	%
Expected dividend yield	2.06	%	1.95	%	1.83	%
Expected term	5.6 years		5.6 years		5.7 years
Risk-free interest rate	1.7	%	1.0	%	0.9	%

Summary of Stock Option Activity

The following table summarizes the stock option activity during the three years ended March 31, 2015:

	Number of Stock Options		Weighted-Average Exercise Price		Aggregate Intrinsic Value (In thousands)
Outstanding at March 31, 2012	6,584,482		$	47.08
Granted	966,300		$	91.52
Exercised	(2,423,265	)	$	36.67
Forfeited	(75,501	)	$	67.86
Outstanding at March 31, 2013	5,052,016		$	60.26	$	196,527
Granted	959,700		$	102.96
Exercised	(817,016	)	$	47.38
Forfeited	(90,276	)	$	85.04
Outstanding at March 31, 2014	5,104,424		$	69.91	$	186,816
Granted	977,500		$	104.80
Exercised	(1,034,325	)	$	53.49
Forfeited	(73,929	)	$	98.24
Outstanding at March 31, 2015	4,973,670		$	79.76	$	131,135
Vested or expected to vest at March 31, 2015	4,959,195		$	79.69	$	131,100
Exercisable at March 31, 2015	2,839,584		$	65.87	$	114,318

Schedule of ESPP Purchase Option Assumptions

The following assumptions were used by the Company in valuing the employees’ option to purchase shares of common stock under the ESPP:

	Fiscal 2015		Fiscal 2014		Fiscal 2013
Expected volatility	17.1	%	19.5	%	23.2	%
Expected dividend yield	2.07	%	1.96	%	2.19	%
Expected term	3 to 9 months		3 to 9 months		3 to 6 months
Risk-free interest rate	0.06	%	0.08	%	0.10	%

Summary of ESPP Purchase Option Activity

The following table summarizes the activity of the ESPP during the three years ended March 31, 2015:

	Number of Purchase Options		Weighted-Average Exercise Price		Aggregate Intrinsic Value (In thousands)
Outstanding at March 31, 2012	79,208		$	51.61
Granted	244,122		$	70.74
Exercised	(261,193	)	$	65.42
Outstanding at March 31, 2013	62,137		$	68.74	$	1,890
Granted	211,093		$	82.88
Exercised	(218,109	)	$	79.38
Outstanding at March 31, 2014	55,121		$	80.77	$	1,419
Granted	200,030		$	90.82
Exercised	(201,037	)	$	89.24
Outstanding at March 31, 2015	54,114		$	86.47	$	1,063

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Stock-Based Compensation (Summary of Stock Option Activity) (Details) (Stock Options [Member], USD $) In Thousands, except Share data, unless otherwise specified	12 Months Ended
	Mar. 31, 2015	Mar. 31, 2014	Mar. 31, 2013
Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Outstanding at the beginning of period, number of options	5,104,424	5,052,016	6,584,482
Granted, number of options	977,500	959,700	966,300
Exercised, number of options	(1,034,325)	(817,016)	(2,423,265)
Forfeited, number of options	(73,929)	(90,276)	(75,501)
Outstanding at the end of period, number of options	4,973,670	5,104,424	5,052,016
Vested or expected to vest as of March 31, 2015, number of options	4,959,195
Exercisable as of March 31, 2015, number of options	2,839,584
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract]
Outstanding at the beginning of period, weighted-average exercise price per share	$ 69.91	$ 60.26	$ 47.08
Granted, weighted-average exercise price per share	$ 104.80	$ 102.96	$ 91.52
Exercised, weighted-average exercise price per share	$ 53.49	$ 47.38	$ 36.67
Forfeited, weighted-average exercise price per share	$ 98.24	$ 85.04	$ 67.86
Outstanding at the end of period, weighted-average exercise price per share	$ 79.76	$ 69.91	$ 60.26
Vested or expected to vest as of March 31, 2015, weighted-average exercise price per share	$ 79.69
Exercisable at March 31, 2015, weighted-average exercise price per share	$ 65.87
Outstanding at the end of period, aggregate intrinsic value	$ 131,135	$ 186,816	$ 196,527
Vested or expected to vest as of March 31, 2015, aggregate intrinsic value	131,100
Exercisable as of March 31, 2015, aggregate intrinsic value	$ 114,318

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Summary by Business Segment (Narrative) (Details) (USD $)	3 Months Ended								12 Months Ended
	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2015	Mar. 31, 2014	Mar. 31, 2013
Segment Reporting Information [Line Items]
Number of business segments	2								2
Net sales	$ 1,301,723,000	$ 1,331,820,000	$ 1,357,755,000	$ 1,313,587,000	$ 1,267,830,000	$ 1,242,846,000	$ 1,281,970,000	$ 1,279,891,000	$ 5,304,885,000	$ 5,072,537,000	$ 4,957,497,000
Foreign [Member]
Segment Reporting Information [Line Items]
Net sales									93,000,000	88,000,000	87,000,000
Long-lived assets	143,000,000				148,000,000				143,000,000	148,000,000	133,000,000
Gas and Rent [Member]
Segment Reporting Information [Line Items]
Net sales									3,351,019,000	3,226,822,000	3,131,022,000
Hardgoods [Member]
Segment Reporting Information [Line Items]
Net sales									$ 1,953,866,000	$ 1,845,715,000	$ 1,826,475,000
Distribution Business Segment [Member]
Segment Reporting Information [Line Items]
Number of reportable segments									1
Number of operating segments									21
Sales, percentage of total									90.00%	90.00%	90.00%
Distribution Business Segment [Member] | Gas and Rent [Member]
Segment Reporting Information [Line Items]
Sales, percentage of total									59.00%	60.00%	59.00%
Distribution Business Segment [Member] | Hardgoods [Member]
Segment Reporting Information [Line Items]
Sales, percentage of total									41.00%	40.00%	41.00%
All Other Operations Business Segment [Member]
Segment Reporting Information [Line Items]
Number of operating segments									5
Maximum [Member] | Sales Revenue, Net [Member] | Largest Customer [Member] | Customer Concentration Risk [Member]
Segment Reporting Information [Line Items]
Percentage of total sales of largest customer									1.00%
Maximum [Member] | Foreign [Member]
Segment Reporting Information [Line Items]
Sales, percentage of total									2.00%	2.00%	2.00%
Long-lived assets, percentage of total	5.00%				5.00%				5.00%	5.00%	5.00%

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Consolidated Statements of Stockholders' Equity (USD $) In Thousands, except Share data, unless otherwise specified	Total	Common Stock [Member]	Capital In Excess of Par Value [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Income [Member]	Treasury Stock [Member]
Total stockholders' equity at period start date at Mar. 31, 2012	$ 1,750,258	$ 869	$ 649,551	$ 1,701,478	$ 5,386	$ (607,026)
Treasury stock at period start date, shares at Mar. 31, 2012						(10,207,000)
Common stock, issued at period start date, shares at Mar. 31, 2012		86,874,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net earnings	340,874			340,874
Foreign currency translation adjustments	(1,274)				(1,274)
Reclassification of hedging loss included in net earnings (Note 10)	517				517
Net tax expense of other comprehensive income items	(191)				(191)
Treasury stock reissuances in connection with stock options exercised (Note 13)	88,700		0			147,455
Treasury stock reissued at lower than repurchase price for stock options exercised (Note 13)				(58,755)
Treasury stock reissuances in connection with stock options exercised, shares (Note 13)						2,421,000
Dividends paid on common stock (Note 12)	(122,202)			(122,202)
Excess tax benefit associated with the exercise of stock options	36,160		36,160
Shares issued in connection with the Employee Stock Purchase Plan, shares (Note 13)		261,000
Shares issued in connection with the Employee Stock Purchase Plan (Note 13)	17,088	2	17,086
Stock-based compensation expense (Note 13)	27,053		27,053
Purchase of treasury stock (Note 12), shares	(6,300,000)					(6,291,000)
Purchase of treasury stock (Note 12)	(600,000)					(600,000)
Total stockholders' equity at period end date at Mar. 31, 2013	1,536,983	871	729,850	1,861,395	4,438	(1,059,571)
Treasury stock at period end date, shares at Mar. 31, 2013						(14,077,000)
Common stock, issued at period end date, shares at Mar. 31, 2013		87,135,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net earnings	350,784			350,784
Foreign currency translation adjustments	(4,235)				(4,235)
Reclassification of hedging loss included in net earnings (Note 10)	517				517
Net tax expense of other comprehensive income items	(191)				(191)
Treasury stock reissuances in connection with stock options exercised (Note 13)	38,310		0			61,185
Treasury stock reissued at lower than repurchase price for stock options exercised (Note 13)				(22,875)
Treasury stock reissuances in connection with stock options exercised, shares (Note 13)						813,000
Dividends paid on common stock (Note 12)	(141,461)			(141,461)
Excess tax benefit associated with the exercise of stock options	13,668		13,668
Shares issued in connection with the Employee Stock Purchase Plan, shares (Note 13)		218,000
Shares issued in connection with the Employee Stock Purchase Plan (Note 13)	17,313	3	17,310
Stock-based compensation expense (Note 13)	28,961		28,961
Total stockholders' equity at period end date at Mar. 31, 2014	1,840,649	874	789,789	2,047,843	529	(998,386)
Treasury stock at period end date, shares at Mar. 31, 2014	(13,264,000)					(13,264,000)
Common stock, issued at period end date, shares at Mar. 31, 2014	87,353,000	87,353,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net earnings	368,086			368,086
Foreign currency translation adjustments	(15,708)				(15,708)
Reclassification of hedging loss included in net earnings (Note 10)	517				517
Net tax expense of other comprehensive income items	(191)				(191)
Treasury stock reissuances in connection with stock options exercised (Note 13)	54,279					76,033
Treasury stock reissued at lower than repurchase price for stock options exercised (Note 13)			(1,368)	(20,386)
Treasury stock reissuances in connection with stock options exercised, shares (Note 13)						1,026,000
Reissuance of treasury stock for acquisition (Note 3)	4,458		1,368			3,090
Reissuance of treasury stock for acquisition, shares (Note 3)						41,000
Dividends paid on common stock (Note 12)	(164,517)			(164,517)
Excess tax benefit associated with the exercise of stock options	16,045		16,045
Shares issued in connection with the Employee Stock Purchase Plan, shares (Note 13)		201,000
Shares issued in connection with the Employee Stock Purchase Plan (Note 13)	17,941	2	17,939
Stock-based compensation expense (Note 13)	30,027		30,027
Total stockholders' equity at period end date at Mar. 31, 2015	$ 2,151,586	$ 876	$ 853,800	$ 2,231,026	$ (14,853)	$ (919,263)
Treasury stock at period end date, shares at Mar. 31, 2015	(12,197,000)					(12,197,000)
Common stock, issued at period end date, shares at Mar. 31, 2015	87,554,000	87,554,000

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Stock-Based Compensation (Stock-Based Compensation Expense) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Mar. 31, 2015	Mar. 31, 2014	Mar. 31, 2013
Stock-based compensation expense related to:
Stock-based compensation expense	$ 30,027	$ 28,961	$ 27,053
Tax benefit	(10,624)	(10,392)	(9,338)
Stock-based compensation expense, net of tax	19,403	18,569	17,715
Stock Options [Member]
Stock-based compensation expense related to:
Stock-based compensation expense	25,935	24,892	22,969
Employee Stock Purchase Plan [Member]
Stock-based compensation expense related to:
Stock-based compensation expense	$ 4,092	$ 4,069	$ 4,084

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Inventories, Net (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Inventories, Net [Line Items]
Inventories, net	$ 474,070	$ 478,149
Hardgoods [Member]
Inventories, Net [Line Items]
Inventories, net	311,453	313,127
Gases [Member]
Inventories, Net [Line Items]
Inventories, net	$ 162,617	$ 165,022

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Interest Expense, Net (Schedule of Interest Expense, Net) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Mar. 31, 2015	Mar. 31, 2014	Mar. 31, 2013
Interest Expense [Abstract]
Interest expense	$ 64,191	$ 75,361	$ 70,077
Interest and finance charge income	(1,959)	(1,663)	(2,583)
Interest expense, net	$ 62,232	$ 73,698	$ 67,494

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Acquisitions and Divestitures (Tables)

12 Months Ended

Mar. 31, 2015

Mar. 31, 2014

Mar. 31, 2013

Business Combinations [Abstract]

Summary of the Consideration Transferred and the Fair Values of the Assets Acquired and Liabilities Assumed [Table Text Block]

The following table summarizes the consideration transferred and the estimated fair values of the assets acquired and liabilities assumed for fiscal 2015 acquisitions, as well as adjustments to finalize the valuations of certain prior year acquisitions. Valuation adjustments related to prior year acquisitions were not significant.

(In thousands)	Distribution Business Segment			All Other Operations Business Segment			Total
Consideration
Cash (a)	$	50,774		$	1,053		$	51,827
Airgas, Inc. common stock (b)	4,458			—			4,458
Fair value of total consideration transferred	$	55,232		$	1,053		$	56,285
Recognized amounts of identifiable assets acquired and liabilities assumed
Current assets, net	$	9,705		$	3		$	9,708
Plant and equipment	13,824			—			13,824
Other intangible assets	15,122			1,040			16,162
Current liabilities	(5,765		)	(50		)	(5,815		)
Non-current liabilities	(4,526		)	—			(4,526		)
Total identifiable net assets	28,360			993			29,353
Goodwill	26,872			60			26,932
	$	55,232		$	1,053		$	56,285

____________________

^(a)  Includes cash paid, net of cash acquired, for current year acquisitions as well as payments for the settlement of holdback liabilities and contingent consideration arrangements associated with prior year acquisitions.

^(b)  Represents 41,060 shares of Airgas, Inc. common stock issued in connection with a single acquisition. The fair value of the shares issued as part of the consideration for the acquisition was determined based on the closing sales price of Airgas, Inc. common stock on the acquisition date.

The following table summarizes, as of March 31, 2014, the consideration transferred and the estimated fair values of the assets acquired and liabilities assumed for fiscal 2014 acquisitions, as well as adjustments to finalize the valuations of certain prior year acquisitions. Valuation adjustments related to prior year acquisitions were not significant.

(In thousands)	Distribution Business Segment			All Other Operations Business Segment			Total
Consideration
Cash (a)	$	204,957		$	413		$	205,370
Recognized amounts of identifiable assets acquired and liabilities assumed
Current assets, net	$	14,631		$	9		$	14,640
Plant and equipment	48,919			(746		)	48,173
Other intangible assets	60,190			—			60,190
Current liabilities	(6,088		)	1,366			(4,722		)
Non-current liabilities	(8,321		)	—			(8,321		)
Total identifiable net assets	109,331			629			109,960
Goodwill	95,626			(216		)	95,410
	$	204,957		$	413		$	205,370

__________________

^(a)  Includes cash paid, net of cash acquired, for current year acquisitions as well as payments for the settlement of holdback liabilities and contingent consideration arrangements associated with prior year acquisitions.

The following table summarizes, as of March 31, 2013, the consideration transferred and the estimated fair values of the assets acquired and liabilities assumed for fiscal 2013 acquisitions, as well as adjustments to finalize the valuations of certain prior year acquisitions. Valuation adjustments related to prior year acquisitions were not significant.

(In thousands)	Distribution Business Segment			All Other Operations Business Segment			Total
Consideration
Cash (a)	$	93,555		$	3,966		$	97,521
Recognized amounts of identifiable assets acquired and liabilities assumed
Current assets, net	$	14,627		$	548		$	15,175
Plant and equipment	24,191			1,018			25,209
Other intangible assets	38,658			2,155			40,813
Current liabilities	(10,990		)	(2,134		)	(13,124		)
Non-current liabilities	(4,035		)	(722		)	(4,757		)
Total identifiable net assets	62,451			865			63,316
Goodwill	31,104			3,101			34,205
	$	93,555		$	3,966		$	97,521

________________

^(a)  Includes cash paid, net of cash acquired, for current year acquisitions as well as payments for the settlement of holdback liabilities and contingent consideration arrangements associated with prior year acquisitions.

Pro Forma Operating Results

The following table provides unaudited pro forma results of operations for fiscal 2015 and 2014, as if fiscal 2015 acquisitions had occurred on April 1, 2013. The pro forma results were prepared from financial information obtained from the sellers of the businesses, as well as information obtained during the due diligence process associated with the acquisitions. The unaudited pro forma results reflect certain adjustments related to the acquisitions, such as increased depreciation and amortization expense resulting from the stepped-up basis to fair value of assets acquired and adjustments to reflect the Company’s borrowing and tax rates. The pro forma operating results do not include any anticipated synergies related to combining the businesses. Accordingly, such pro forma operating results were prepared for comparative purposes only and do not purport to be indicative of what would have occurred had the acquisitions been made as of April 1, 2013 or of results that may occur in the future.

	Unaudited
	Years Ended March 31,
(In thousands, except per share amounts)	2015		2014
Net sales	$	5,327,458	$	5,123,979
Net earnings	368,305		351,941
Diluted earnings per share	$	4.86	$	4.70

The following table provides unaudited pro forma results of operations for fiscal 2014 and 2013, as if fiscal 2014 acquisitions had occurred on April 1, 2012. The pro forma operating results were prepared for comparative purposes only and do not purport to be indicative of what would have occurred had the acquisitions been made as of April 1, 2012 or of results that may occur in the future.

	Unaudited
	Years Ended March 31,
(In thousands, except per share amounts)	2014		2013
Net sales	$	5,122,936	$	5,037,123
Net earnings	352,421		343,933
Diluted earnings per share	$	4.70	$	4.39

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Income Taxes (Deferred Tax Assets and Liabilities by Balance Sheet Grouping) (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Income Tax Disclosure [Abstract]
Current deferred income tax asset, net	$ 58,072	$ 57,961
Non-current deferred income tax liability, net	(854,574)	(825,897)
Net deferred tax liability	$ (796,502)	$ (767,936)

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Interest Expense, Net

12 Months Ended

Mar. 31, 2015

Interest Expense [Abstract]

Interest Expense, Net

INTEREST EXPENSE, NET

Interest expense, net, consists of:

	Years Ended March 31,
(In thousands)	2015			2014			2013
Interest expense	$	64,191		$	75,361		$	70,077
Interest and finance charge income	(1,959		)	(1,663		)	(2,583		)
	$	62,232		$	73,698		$	67,494

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Inventories, Net (Tables)

12 Months Ended

Mar. 31, 2015

Inventory, Net [Abstract]

Schedule of Inventories, Net

Inventories, net, consist of:

(In thousands)	March 31, 2015		March 31, 2014
Hardgoods	$	311,453	$	313,127
Gases	162,617		165,022
	$	474,070	$	478,149

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Stock-Based Compensation (ESPP - Purchase Option Activity) (Details) (Employee Stock Purchase Plan [Member], USD $) In Thousands, except Share data, unless otherwise specified	12 Months Ended
	Mar. 31, 2015	Mar. 31, 2014	Mar. 31, 2013
Employee Stock Purchase Plan [Member]
ESPP Purchase Option Activity [Roll Forward]
Outstanding at the beginning of period, number of options	55,121	62,137	79,208
Granted, number of options	200,030	211,093	244,122
Exercised, number of options	(201,037)	(218,109)	(261,193)
Outstanding at the end of period, number of options	54,114	55,121	62,137
Share-based Compensation Arrangement by Share-based Payment Award, ESPP Purchase Options, Outstanding, Weighted Average Exercise Price [Abstract]
Outstanding at the beginning of period, weighted-average exercise price per share	$ 80.77	$ 68.74	$ 51.61
Granted, weighted-average exercise price per share	$ 90.82	$ 82.88	$ 70.74
Exercised, weighted-average exercise price per share	$ 89.24	$ 79.38	$ 65.42
Outstanding at the end of period, weighted-average exercise price per share	$ 86.47	$ 80.77	$ 68.74
Outstanding at the end of period, aggregate intrinsic value	$ 1,063	$ 1,419	$ 1,890

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Leases

12 Months Ended

Mar. 31, 2015

Leases [Abstract]

Leases

LEASES

The Company leases certain facilities, fleet vehicles and equipment under long-term operating leases with varying terms. Most leases contain renewal options and in some instances, purchase options. Rentals under these operating leases for the years ended March 31, 2015, 2014 and 2013 totaled approximately $121 million, $110 million and $106 million, respectively. Certain operating facilities are leased at market rates from employees of the Company who were previous owners of businesses acquired. Outstanding capital lease obligations and the related capital assets are not material to the consolidated balance sheets at March 31, 2015 and 2014. In connection with the fleet vehicle operating leases, the Company guarantees a residual value of $29 million, representing approximately 10.2% of the original cost of the equipment currently under lease.

At March 31, 2015, future minimum lease payments under non-cancelable operating leases were as follows:

(In thousands)
Years Ending March 31,
2016	$	104,273
2017	89,827
2018	74,021
2019	53,640
2020	34,677
Thereafter	52,182
	$	408,620

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Goodwill and Other Intangible Assets (Changes In Goodwill) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Mar. 31, 2015		Mar. 31, 2014
Goodwill [Roll Forward]
Goodwill at period start date	$ 1,289,896		$ 1,195,613
Acquisitions	26,932	[1]	95,410	[1]
Other adjustments, including foreign currency translation	(3,184)		(1,127)
Goodwill at period end date	1,313,644		1,289,896
Distribution Business Segment [Member]
Goodwill [Roll Forward]
Goodwill at period start date	1,092,728		998,128
Acquisitions	26,872	[1]	95,626	[1]
Other adjustments, including foreign currency translation	(3,031)		(1,026)
Goodwill at period end date	1,116,569		1,092,728
All Other Operations Business Segment [Member]
Goodwill [Roll Forward]
Goodwill at period start date	197,168		197,485
Acquisitions	60	[1]	(216)	[1]
Other adjustments, including foreign currency translation	(153)		(101)
Goodwill at period end date	$ 197,075		$ 197,168

[1] Includes acquisitions completed during the respective year and adjustments made to prior year acquisitions.

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Benefit Plans (401K Plan) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Mar. 31, 2015	Mar. 31, 2014	Mar. 31, 2013
Defined Contribution Plan Disclosure [Line Items]
Employer contributions to 401(k) plan	$ 13.0	$ 12.3	$ 11.7
Maximum [Member]
Defined Contribution Plan Disclosure [Line Items]
Defined contribution plan employer contributions, percentage of participants' wages	2.00%

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Consolidated Statements of Stockholders' Equity Consolidated Statements of Stockholders' Equity (Parenthetical) (USD $)	3 Months Ended												12 Months Ended
	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2015	Mar. 31, 2014	Mar. 31, 2013
Common stock cash dividends paid per share	$ 0.55	$ 0.55	$ 0.55	$ 0.55	$ 0.48	$ 0.48	$ 0.48	$ 0.48	$ 0.40	$ 0.40	$ 0.40	$ 0.40	$ 2.20	$ 1.92	$ 1.6

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Consolidated Statements of Comprehensive Income (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Mar. 31, 2015	Mar. 31, 2014	Mar. 31, 2013
Net earnings	$ 368,086	$ 350,784	$ 340,874
Other comprehensive income (loss), before tax:
Foreign currency translation adjustments	(15,708)	(4,235)	(1,274)
Reclassification of hedging loss included in net earnings (Note 10)	517	517	517
Other comprehensive income (loss), before tax	(15,191)	(3,718)	(757)
Net tax expense of other comprehensive income items	(191)	(191)	(191)
Other comprehensive income (loss), net of tax	(15,382)	(3,909)	(948)
Comprehensive income	$ 352,704	$ 346,875	$ 339,926

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Indebtedness

12 Months Ended

Mar. 31, 2015

Debt Instruments [Abstract]

Indebtedness

INDEBTEDNESS

Total debt consists of:

(In thousands)	March 31, 2015			March 31, 2014
Short-term
Money market loans	$	—		$	—
Commercial paper	325,871			387,866
Short-term debt	$	325,871		$	387,866
Long-term
Trade receivables securitization	$	295,000		$	295,000
Revolving credit borrowings - U.S.	—			—
Revolving credit borrowings - Multi-currency	48,332			54,230
Revolving credit borrowings - France	6,277			8,056
Senior notes, net	1,648,608			1,748,774
Other long-term debt	555			1,036
Total long-term debt	1,998,772			2,107,096
Less current portion of long-term debt	(250,110		)	(400,322		)
Long-term debt, excluding current portion	$	1,748,662		$	1,706,774
Total debt	$	2,324,643		$	2,494,962

Money Market Loans

The Company has an agreement with a financial institution to provide access to short-term advances not to exceed $35 million that expires on December 29, 2015. The agreement may be further extended subject to renewal provisions contained in the agreement. The advances may be for one to six months with rates at a fixed spread over the corresponding London Interbank Offering Rate (“LIBOR”). At March 31, 2015, there were no advances outstanding under the agreement.

The Company also has an agreement with another financial institution that provides access to additional short-term advances not to exceed $35 million that expires on July 31, 2015. The agreement may be extended subject to renewal provisions contained in the agreement. The advances are generally overnight or for up to seven days. The amount, term and interest rate of an advance are established through mutual agreement with the financial institution when the Company requests such an advance. At March 31, 2015, there were no advances outstanding under the agreement.

Commercial Paper

In November 2014, the Company’s commercial paper program, which is supported by its Credit Facility, was increased to $1 billion in conjunction with the increased size of the Credit Facility (see below). This program allows the Company to obtain favorable short-term borrowing rates withmaturities that vary, but will generally not exceed 90 days from the date of issue, and is classified as short-term debt.At maturity, the commercial paper balances are often rolled over rather than repaid or refinanced, depending on the Company’s cash and liquidity positions.The Company has used proceeds from commercial paper issuances for general corporate purposes. At March 31, 2015, $326 million was outstanding under the commercial paper program and the average interest rate on these borrowings was 0.57%. There was $388 million outstanding under the commercial paper program at March 31, 2014.

Trade Receivables Securitization

The Company participates in a securitization agreement with three commercial bank conduits to which it sells qualifying trade receivables on a revolving basis (the “Securitization Agreement”). The Company’s sale of qualified trade receivables is accounted for as a secured borrowing under which qualified trade receivables collateralize amounts borrowed from the commercial bank conduits. Trade receivables that collateralize the Securitization Agreement are held in a bankruptcy-remote special purpose entity, which is consolidated for financial reporting purposes and represents the Company’s only variable interest entity. Qualified trade receivables in the amount of the outstanding borrowing under the Securitization Agreement are not available to the general creditors of the Company. The maximum amount available under the Securitization Agreement is $295 million, with the outstanding borrowings bearing interest at a rate of approximately LIBOR plus 75 basis points.

On December 5, 2014, the Company entered into the Fourth Amendment to the Securitization Agreement, which extended the expiration date of the Securitization Agreement from December 5, 2016 to December 5, 2017. At March 31, 2015, the amount of outstanding borrowing under the Securitization Agreement was $295 million. Amounts borrowed under the Securitization Agreement could fluctuate monthly based on the Company’s funding requirements and the level of qualified trade receivables available to collateralize the Securitization Agreement. The Securitization Agreement contains customary events of termination, including standard cross-default provisions with respect to outstanding debt.

Senior Credit Facility

On November 18, 2014, the Company entered into a $1 billion Amended and Restated Credit Facility (the “Credit Facility”) to amend and restate the previous amended and restated credit agreement dated July 19, 2011. The Credit Facility consists of an $875 million U.S. dollar revolving credit line, with a $100 million letter of credit sublimit and a $75 million swingline sublimit, and a $125 million (U.S. dollar equivalent) multi-currency revolving credit line. The maturity date of the Credit Facility is November 18, 2019. Under the circumstances described in the Credit Facility, the revolving credit line may be increased by an additional $500 million, provided that the multi-currency revolving credit line may not be increased by more than an additional $50 million.

As of March 31, 2015, the Company had $48 million of borrowings under the Credit Facility, all of which were under the multi-currency revolver. There were no borrowings under the U.S. dollar revolver at March 31, 2015. The Company also had outstanding U.S. letters of credit of $51 million issued under the Credit Facility. U.S. dollar revolver borrowings bear interest at the LIBOR plus 125 basis points. The multi-currency revolver bears interest based on a rate of 125 basis points over the Euro currency rate applicable to each foreign currency borrowing. As of March 31, 2015, the average interest rate on the multi-currency revolver was 1.69%. In addition to the borrowing spread of 125 basis points for U.S. dollar and multi-currency revolver borrowings, the Company pays a commitment (or unused) fee on the undrawn portion of the Credit Facility equal to 15 basis points per annum.

At March 31, 2015, the financial covenant of the Credit Facility did not restrict the Company’s ability to borrow on the unused portion of the Credit Facility. The Credit Facility contains customary events of default including, without limitation, failure to make payments, a cross-default to certain other debt, breaches of covenants, breaches of representations and warranties, certain monetary judgments and bankruptcy and ERISA events. At March 31, 2015, the Company was in compliance with all covenants under all of its debt agreements. In the event of default, repayment of borrowings under the Credit Facility may be accelerated. As of March 31, 2015, $575 million remained available under the Company’s Credit Facility, after giving effect to the borrowings under the commercial paper program backstopped by the Credit Facility, the outstanding U.S. letters of credit and the borrowings under the multi-currency revolver.

The Company also maintains a committed revolving line of credit of up to €8.0 million (U.S. $8.6 million) to fund its operations in France. These revolving credit borrowings are outside of the Company’s Credit Facility. At March 31, 2015, these revolving credit borrowings were €5.8 million (U.S. $6.3 million). The variable interest rates on these revolving credit borrowings are based on the Euro currency rate plus 125 basis points. On December 12, 2014, the Company amended the terms of this revolving credit agreement to reduce the commitment fee and extend the maturity to November 18, 2019.

Senior Notes

The Company’s senior notes consisted of the following:

(In thousands)						Principal
Description	Coupon	Yield	Maturity Date	Semi-annual Interest Payment Dates		March 31, 2015			March 31, 2014
2014 Notes (a)	4.50%	4.527%	09/15/2014	March 15 and September 15		$	—		$	400,000
2015 Notes (b)	3.25%	3.283%	10/01/2015	April 1 and October 1		250,000			250,000
2016 Notes	2.95%	2.980%	06/15/2016	June 15 and December 15		250,000			250,000
2018 Notes	1.65%	1.685%	02/15/2018	February 15 and August 15		325,000			325,000
2020 Notes	2.375%	2.392%	02/15/2020	February 15 and August 15		275,000			275,000
2022 Notes	2.90%	2.913%	11/15/2022	May 15 and November 15		250,000			250,000
2024 Notes (c)	3.65%	3.673%	07/15/2024	January 15 and July 15		300,000			—
						1,650,000			1,750,000
				Less: unamortized discount		(1,392		)	(1,226		)
					Senior notes, net	$	1,648,608		$	1,748,774

____________________

^(a)  The 2014 Notes were repaid by the Company in September 2014.

^(b)  The 2015 Notes are included within the “Current portion of long-term debt” line item on the Company’s consolidated balance sheet based on the maturity date.

^(c)  On June 17, 2014, the Company issued the 2024 Notes. The net proceeds from the sale of the 2024 Notes were used for general corporate purposes, including to fund acquisitions and repay indebtedness under the Company’s commercial paper program. Interest payments on the 2024 Notes commenced on January 15, 2015.

The 2015, 2016, 2018, 2020, 2022 and 2024 Notes (collectively, the “Senior Notes”) contain covenants that could restrict the incurrence of liens and limit sale and leaseback transactions. Additionally, the Company has the option to redeem the Senior Notes prior to their maturity, in whole or in part, at 100% of the principal plus any accrued but unpaid interest and applicable make-whole payments.

Debt Extinguishment Charge

On October 2, 2013, the Company redeemed its $215 million7.125% senior subordinated notes originally due to mature on October 1, 2018 in full at a price of 103.563%. A loss on the early extinguishment of debt of $9.1 million was recognized during the year ended March 31, 2014 related to the redemption premium and the write-off of unamortized debt issuance costs.

Aggregate Long-term Debt Maturities

The aggregate maturities of long-term debt at March 31, 2015 are as follows:

(In thousands)	Debt Maturities  (a)
Years Ending March 31,
2016	$	250,147
2017	250,311
2018	620,095
2019	—
2020	329,610
Thereafter	550,000
	$	2,000,163

____________________

^(a)  Outstanding borrowings under the Securitization Agreement at March 31, 2015 are reflected as maturing at the agreement’s expiration in December 2017.

The Senior Notes are reflected in the debt maturity schedule at their maturity values rather than their carrying values, which are net of aggregate discounts of $1.4 million at March 31, 2015.

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Commitments and Contingencies (Insurance Coverage) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Mar. 31, 2015	Mar. 31, 2014	Mar. 31, 2013	Mar. 31, 2016
Loss Contingencies [Line Items]
Business insurance programs high deductible limits per occurrence	$ 1	$ 1	$ 1
Self-insured medical benefits reserve	13.8	12.9
Scenario, Forecast [Member]
Loss Contingencies [Line Items]
Business insurance programs high deductible limits per occurrence				$ 1

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Stock-Based Compensation (Narrative) (Details) (USD $)	0 Months Ended	12 Months Ended			0 Months Ended
	Aug. 14, 2012	Mar. 31, 2015	Mar. 31, 2014	Mar. 31, 2013	Apr. 01, 2015
Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Increase in maximum number of shares available for issuance	4,000,000
Shares authorized		11,800,000
Shares available for issuance		3,200,000
Weighted-average grant date fair value of stock options granted		$ 28.72	$ 32.41	$ 29.40
Total intrinsic value of stock options exercised		$ 60,800,000	$ 47,000,000	$ 125,100,000
Weighted-average remaining contractual term of stock options outstanding		4 years 7 months
Unrecognized compensation expense related to non-vested stock options		41,900,000
Weighted-average vesting period of non-vested stock options (in years)		1 year 8 months
ESPP shares issued		1,034,325	817,016	2,423,265
Employee Stock Purchase Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares authorized		5,500,000
Shares available for issuance		1,100,000
Maximum contractual term of awards		12 months
Weighted-average grant date fair value of stock options granted		$ 20.44	$ 19.27	$ 16.73
ESPP shares issued		201,037	218,109	261,193
Annual gross earnings withheld, maximum		15.00%
Percentage of market price employees pay for Company stock in ESPP		85.00%
Employee aggregate annual purchase limit maximum - ESPP		$ 25,000
Stock options granted prior to April 1, 2006 [Member] | Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Maximum contractual term of awards		10 years
Stock options granted prior to April 1, 2006 [Member] | Stock Options [Member] | Share-based Compensation Award, Year One [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Annual vesting percentage		25.00%
Stock options granted prior to April 1, 2006 [Member] | Stock Options [Member] | Share-based Compensation Award, Year Two [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Annual vesting percentage		25.00%
Stock options granted prior to April 1, 2006 [Member] | Stock Options [Member] | Share-based Compensation Award, Year Three [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Annual vesting percentage		25.00%
Stock options granted prior to April 1, 2006 [Member] | Stock Options [Member] | Share-Based Compensation Award, Year Four [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Annual vesting percentage		25.00%
Stock options granted subsequent to April 1, 2006 [Member] | Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Maximum contractual term of awards		8 years
Stock options granted subsequent to April 1, 2006 [Member] | Stock Options [Member] | Share-based Compensation Award, Year One [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Annual vesting percentage		25.00%
Stock options granted subsequent to April 1, 2006 [Member] | Stock Options [Member] | Share-based Compensation Award, Year Two [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Annual vesting percentage		25.00%
Stock options granted subsequent to April 1, 2006 [Member] | Stock Options [Member] | Share-based Compensation Award, Year Three [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Annual vesting percentage		25.00%
Stock options granted subsequent to April 1, 2006 [Member] | Stock Options [Member] | Share-Based Compensation Award, Year Four [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Annual vesting percentage		25.00%
Subsequent Event [Member] | Employee Stock Purchase Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
ESPP shares issued					54,114

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Stockholders' Equity (Comprehensive Income) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Mar. 31, 2015	Mar. 31, 2014	Mar. 31, 2013
Stockholders' Equity Note [Abstract]
Comprehensive income	$ 352,704	$ 346,875	$ 339,926

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Subsequent Event (Details) (Subsequent Event [Member], USD $)	0 Months Ended
	Apr. 07, 2015
Subsequent Event [Member]
Subsequent Event [Line Items]
Cash dividend declared	$ 0.60

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Document and Entity Information (USD $) In Billions, except Share data, unless otherwise specified	12 Months Ended
	Mar. 31, 2015	May 22, 2015	Sep. 30, 2014
Document Information [Line Items]
Document Type	10-K
Document Period End Date	Mar. 31, 2015
Amendment Flag	false
Entity Registrant Name	AIRGAS INC
Trading Symbol	ARG
Entity Central Index Key	0000804212
Entity Current Reporting Status	Yes
Entity Voluntary Filers	No
Current Fiscal Year End Date	--03-31
Entity Filer Category	Large Accelerated Filer
Entity Well-known Seasoned Issuer	Yes
Entity Public Float			$ 7.4
Document Fiscal Year Focus	2015
Document Fiscal Period Focus	FY
Entity Common Stock, Shares Outstanding		75,513,636

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Derivative Instruments and Hedging Activities

12 Months Ended

Mar. 31, 2015

General Discussion of Derivative Instruments and Hedging Activities [Abstract]

Derivative Instruments and Hedging Activities

DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES

Cash Flow Hedges

In anticipation of the issuance of the 2015 Notes, the Company entered into a treasury rate lock agreement in July 2010 with a notional amount of $100 million that matured in September 2010. The treasury rate lock agreement was designated as a cash flow hedge of the semi-annual interest payments associated with the forecasted issuance of the 2015 Notes. When the treasury rate lock agreement matured, the Company realized a loss of $2.6 million ($1.6 million after tax) which was reported as a component within accumulated other comprehensive income (“AOCI”) and is being reclassified into earnings over the term of the 2015 Notes. For the years ended March 31, 2015, 2014 and 2013, $517 thousand of the loss on the treasury rate lock was reclassified to interest expense during each period (see Note 12 for details). At March 31, 2015, the remaining estimated loss recorded in AOCI on the treasury rate lock agreement was not material, and will be reclassified into earnings through the maturity date of the 2015 Notes in October 2015.

Fair Value Hedges

The Company previously had five variable interest rate swap agreements outstanding with a notional amount of $300 million, which were designated as fair value hedges. These variable interest rates swaps were used to effectively convert the Company’s $300 million of fixed rate 2.85% senior notes (the “2013 Notes”) to variable rate debt. The swap agreements matured on October 1, 2013, coinciding with the maturity date of the Company’s 2013 Notes. For these derivative instruments designated as fair value hedges, the Company recorded the gain or loss on the derivatives (interest rate swaps) as well as the offsetting gain or loss on the hedged item attributable to the hedged risk (the 2013 Notes) in interest expense in the consolidated statements of earnings for the respective years. The net gain or loss recorded in earnings as a result of hedge ineffectiveness related to the designated fair value hedges was immaterial for the years ended March 31, 2014 and 2013.

Tabular Disclosure

There were no outstanding derivative instruments on the Company’s consolidated balance sheets at March 31, 2015 or 2014, nor any derivative instruments used by the Company during the year ended March 31, 2015. The following table illustrates the effect of derivative instruments in fair value hedging relationships on the Company’s earnings. See Note 12 for the tabular presentation of derivative instruments in cash flow hedging relationships related to the treasury rate lock agreement.

Effect of Derivative Instruments in Fair Value Hedging Relationships on Earnings

	Location of Gain (Loss) Recognized in Pre-tax Income	Amount of Gain (Loss) Recognized in Pre-Tax Income
(In thousands)		Years Ended March 31,
Derivatives in Fair Value Hedging Relationships		2014			2013
Change in fair value of variable interest rate swaps	Interest expense, net	$	(2,490	)	$	(4,244	)
Change in carrying value of 2013 Notes	Interest expense, net	2,496			4,273
Net effect	Interest expense, net	$	6		$	29

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Indebtedness (Schedule of Long-Term Debt Maturities) (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2015		Mar. 31, 2014
Years Ending March 31, [Abstract]
2016	$ 250,147	[1]
2017	250,311	[1]
2018	620,095	[1]
2019	0	[1]
2020	329,610	[1]
Thereafter	550,000	[1]
Total maturities of long-term debt	2,000,163	[1]
Senior notes, net [Member]
Years Ending March 31, [Abstract]
Unamortized discounts	$ 1,392		$ 1,226

[1] Outstanding borrowings under the Securitization Agreement at March 31, 2015 are reflected as maturing at the agreement’s expiration in December 2017.The Senior Notes are reflected in the debt maturity schedule at their maturity values rather than their carrying values, which are net of aggregate discounts of $1.4 million at March 31, 2015.

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Stockholders' Equity (Stock Repurchase Program) (Details) (USD $) Share data in Millions, unless otherwise specified	12 Months Ended
	Mar. 31, 2013	Oct. 31, 2012
Stockholders' Equity Note [Abstract]
Stock repurchase program, authorized amount		$ 600,000,000
Treasury stock, shares repurchased	6.3
Total value of stock repurchased	$ 600,000,000

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Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Current Assets
Cash	$ 50,724	$ 69,561
Trade receivables, less allowances for doubtful accounts of $27,016 and $31,757 at March 31, 2015 and 2014, respectively	708,227	701,060
Inventories, net (Note 4)	474,070	478,149
Deferred income tax asset, net (Note 5)	58,072	57,961
Prepaid expenses and other current assets	124,591	92,356
Total current assets	1,415,684	1,399,087
Plant and equipment at cost (Note 6)	5,305,059	4,931,064
Less accumulated depreciation	(2,353,293)	(2,128,649)
Plant and equipment, net	2,951,766	2,802,415
Goodwill (Note 7)	1,313,644	1,289,896
Other intangible assets, net (Note 7)	244,519	258,836
Other non-current assets	47,997	43,080
Total assets	5,973,610	5,793,314
Current Liabilities
Accounts payable, trade	206,187	196,911
Accrued expenses and other current liabilities (Note 8)	346,879	345,676
Short-term debt (Note 9)	325,871	387,866
Current portion of long-term debt (Note 9)	250,110	400,322
Total current liabilities	1,129,047	1,330,775
Long-term debt, excluding current portion (Note 9)	1,748,662	1,706,774
Deferred income tax liability, net (Note 5)	854,574	825,897
Other non-current liabilities	89,741	89,219
Commitments and contingencies (Notes 16 and 17)
Stockholders’ Equity (Note 12)
Preferred stock, 20,030 shares authorized, no shares issued or outstanding at March 31, 2015 and 2014	0	0
Common stock, par value $0.01 per share, 200,000 shares authorized, 87,554 and 87,353 shares issued at March 31, 2015 and 2014, respectively	876	874
Capital in excess of par value	853,800	789,789
Retained earnings	2,231,026	2,047,843
Accumulated other comprehensive income	(14,853)	529
Treasury stock, 12,197 and 13,264 shares at cost at March 31, 2015 and 2014, respectively	(919,263)	(998,386)
Total stockholders’ equity	2,151,586	1,840,649
Total liabilities and stockholders’ equity	$ 5,973,610	$ 5,793,314

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Inventories, Net

12 Months Ended

Mar. 31, 2015

Inventory, Net [Abstract]

Inventories, Net

INVENTORIES, NET

Inventories, net, consist of:

(In thousands)	March 31, 2015		March 31, 2014
Hardgoods	$	311,453	$	313,127
Gases	162,617		165,022
	$	474,070	$	478,149

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Acquisitions and Divestitures

12 Months Ended

Mar. 31, 2015

Business Combinations [Abstract]

Acquisitions and Divestitures

ACQUISITIONS AND DIVESTITURES

Acquisitions are recorded using the acquisition method of accounting and accordingly, results of their operations are included in the Company’s consolidated financial statements from the effective date of each respective acquisition. The Company negotiates the respective purchase prices of acquired businesses based on the expected cash flows to be derived from their operations after integration into the Company’s existing distribution, production and service networks. The acquisition purchase price for each business is allocated based on the fair values of the assets acquired and liabilities assumed. Management estimates the fair values of acquired intangible assets other than goodwill using the income approach (i.e. discounted cash flows), and plant and equipment using either the cost or market approach, depending on the type of fixed asset.

Fiscal 2015

During fiscal 2015, the Company acquired 14 businesses with historical annual sales of approximately $55 million. Transaction and other integration costs incurred in fiscal 2015 were $1.7 million and were included in selling, distribution and administrative expenses in the Company’s consolidated statement of earnings. These acquisitions contributed approximately $27 million in net sales in fiscal 2015.

Purchase price allocations for certain businesses most recently acquired during fiscal 2015 are primarily based on provisional fair values and are subject to revision as the Company finalizes appraisals and other analyses. Final determination of the fair values may result in further adjustments to the values presented below. The following table summarizes the consideration transferred and the estimated fair values of the assets acquired and liabilities assumed for fiscal 2015 acquisitions, as well as adjustments to finalize the valuations of certain prior year acquisitions. Valuation adjustments related to prior year acquisitions were not significant.

(In thousands)	Distribution Business Segment			All Other Operations Business Segment			Total
Consideration
Cash (a)	$	50,774		$	1,053		$	51,827
Airgas, Inc. common stock (b)	4,458			—			4,458
Fair value of total consideration transferred	$	55,232		$	1,053		$	56,285
Recognized amounts of identifiable assets acquired and liabilities assumed
Current assets, net	$	9,705		$	3		$	9,708
Plant and equipment	13,824			—			13,824
Other intangible assets	15,122			1,040			16,162
Current liabilities	(5,765		)	(50		)	(5,815		)
Non-current liabilities	(4,526		)	—			(4,526		)
Total identifiable net assets	28,360			993			29,353
Goodwill	26,872			60			26,932
	$	55,232		$	1,053		$	56,285

____________________

^(a)  Includes cash paid, net of cash acquired, for current year acquisitions as well as payments for the settlement of holdback liabilities and contingent consideration arrangements associated with prior year acquisitions.

^(b)  Represents 41,060 shares of Airgas, Inc. common stock issued in connection with a single acquisition. The fair value of the shares issued as part of the consideration for the acquisition was determined based on the closing sales price of Airgas, Inc. common stock on the acquisition date.

The fair value of trade receivables acquired with fiscal 2015 acquisitions was $6.2 million, with gross contractual amounts receivable of $7.0 million. Goodwill associated with fiscal 2015 acquisitions was $25.1 million, of which $20.9 million is deductible for income tax purposes. Goodwill largely consists of expected synergies resulting from the acquisitions, including increased distribution density and enhanced capabilities that that will facilitate the sale of industrial, medical and specialty gases, and related supplies. Other intangible assets related to fiscal 2015 acquisitions represent customer relationships and non-competition agreements and amounted to $11.3 million and $4.8 million, respectively. See Note 7 for further information on goodwill and other intangible assets.

Pro Forma Operating Results

The following table provides unaudited pro forma results of operations for fiscal 2015 and 2014, as if fiscal 2015 acquisitions had occurred on April 1, 2013. The pro forma results were prepared from financial information obtained from the sellers of the businesses, as well as information obtained during the due diligence process associated with the acquisitions. The unaudited pro forma results reflect certain adjustments related to the acquisitions, such as increased depreciation and amortization expense resulting from the stepped-up basis to fair value of assets acquired and adjustments to reflect the Company’s borrowing and tax rates. The pro forma operating results do not include any anticipated synergies related to combining the businesses. Accordingly, such pro forma operating results were prepared for comparative purposes only and do not purport to be indicative of what would have occurred had the acquisitions been made as of April 1, 2013 or of results that may occur in the future.

	Unaudited
	Years Ended March 31,
(In thousands, except per share amounts)	2015		2014
Net sales	$	5,327,458	$	5,123,979
Net earnings	368,305		351,941
Diluted earnings per share	$	4.86	$	4.70

Fiscal2014

During fiscal 2014, the Company acquired eleven businesses with historical annual sales of approximately $82 million. The largest of these businesses was The Encompass Gas Group, Inc. (“Encompass”), headquartered in Rockford, Illinois. With eleven locations in Illinois, Wisconsin, and Iowa, Encompass was one of the largest privately-owned suppliers of industrial, medical, and specialty gases and related hardgoods in the United States, generating approximately $55 million in sales in calendar 2012. Transaction and other integration costs incurred in fiscal 2014 were $1.5 million and were included in selling, distribution and administrative expenses in the Company’s consolidated statement of earnings. These acquisitions contributed approximately $33 million in net sales in fiscal 2014.

The following table summarizes, as of March 31, 2014, the consideration transferred and the estimated fair values of the assets acquired and liabilities assumed for fiscal 2014 acquisitions, as well as adjustments to finalize the valuations of certain prior year acquisitions. Valuation adjustments related to prior year acquisitions were not significant.

(In thousands)	Distribution Business Segment			All Other Operations Business Segment			Total
Consideration
Cash (a)	$	204,957		$	413		$	205,370
Recognized amounts of identifiable assets acquired and liabilities assumed
Current assets, net	$	14,631		$	9		$	14,640
Plant and equipment	48,919			(746		)	48,173
Other intangible assets	60,190			—			60,190
Current liabilities	(6,088		)	1,366			(4,722		)
Non-current liabilities	(8,321		)	—			(8,321		)
Total identifiable net assets	109,331			629			109,960
Goodwill	95,626			(216		)	95,410
	$	204,957		$	413		$	205,370

__________________

^(a)  Includes cash paid, net of cash acquired, for current year acquisitions as well as payments for the settlement of holdback liabilities and contingent consideration arrangements associated with prior year acquisitions.

The fair value of trade receivables acquired with fiscal 2014 acquisitions was $8.9 million, with gross contractual amounts receivable of $9.4 million. Goodwill associated with fiscal 2014 acquisitions was $93.3 million, of which $89.7 million is deductible for income tax purposes. Goodwill largely consists of expected synergies resulting from the acquisitions, including the expansion of geographical coverage that will facilitate the sale of industrial, medical and specialty gases and related supplies. Other intangible assets related to fiscal 2014 acquisitions represent customer relationships and non-competition agreements, and amounted to $55.8 million and $4.3 million, respectively.

Pro Forma Operating Results

The following table provides unaudited pro forma results of operations for fiscal 2014 and 2013, as if fiscal 2014 acquisitions had occurred on April 1, 2012. The pro forma operating results were prepared for comparative purposes only and do not purport to be indicative of what would have occurred had the acquisitions been made as of April 1, 2012 or of results that may occur in the future.

	Unaudited
	Years Ended March 31,
(In thousands, except per share amounts)	2014		2013
Net sales	$	5,122,936	$	5,037,123
Net earnings	352,421		343,933
Diluted earnings per share	$	4.70	$	4.39

Fiscal 2013

During fiscal 2013, the Company acquired 18 businesses with historical annual sales of approximately $95 million. Transaction and other integration costs incurred in fiscal 2013 were $1.3 million and were included in selling, distribution and administrative expenses in the Company’s consolidated statement of earnings. These acquisitions contributed approximately $30 million in net sales in fiscal 2013.

The following table summarizes, as of March 31, 2013, the consideration transferred and the estimated fair values of the assets acquired and liabilities assumed for fiscal 2013 acquisitions, as well as adjustments to finalize the valuations of certain prior year acquisitions. Valuation adjustments related to prior year acquisitions were not significant.

(In thousands)	Distribution Business Segment			All Other Operations Business Segment			Total
Consideration
Cash (a)	$	93,555		$	3,966		$	97,521
Recognized amounts of identifiable assets acquired and liabilities assumed
Current assets, net	$	14,627		$	548		$	15,175
Plant and equipment	24,191			1,018			25,209
Other intangible assets	38,658			2,155			40,813
Current liabilities	(10,990		)	(2,134		)	(13,124		)
Non-current liabilities	(4,035		)	(722		)	(4,757		)
Total identifiable net assets	62,451			865			63,316
Goodwill	31,104			3,101			34,205
	$	93,555		$	3,966		$	97,521

________________

^(a)  Includes cash paid, net of cash acquired, for current year acquisitions as well as payments for the settlement of holdback liabilities and contingent consideration arrangements associated with prior year acquisitions.

The fair value of trade receivables acquired with fiscal 2013 acquisitions was $9.2 million, with gross contractual amounts receivable of $9.6 million. Goodwill associated with fiscal 2013 acquisitions was $35.2 million and is deductible for income tax purposes. Goodwill largely consists of expected synergies resulting from the acquisitions, including the expansion of geographical coverage that will facilitate the sale of industrial, medical and specialty gases and related supplies, and the addition of businesses complementary to the Company’s portfolio of products and services. Other intangible assets related to fiscal 2013 acquisitions represent customer relationships and non-competition agreements, and amounted to $30.4 million and $11.7 million, respectively.

Divestitures

On June 1, 2012, the Company divested the assets and operations of five branch locations in western Canada. The Company realized a gain on sale of $6.8 million ($5.5 million after tax) recorded in the “Other income, net” line item of the Company’s consolidated statement of earnings. The operations were included in the Distribution business segment and contributed net sales that were not material to the Company’s consolidated statement of earnings. Proceeds from the sale were used primarily to pay down outstanding debt under the Company’s multi-currency revolving credit line.

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Earnings Per Share

12 Months Ended

Mar. 31, 2015

Earnings Per Share [Abstract]

Earnings Per Share

EARNINGS PER SHARE

Basic earnings per share is calculated by dividing net earnings by the weighted average number of shares of the Company’s common stock outstanding during the period. Outstanding shares consist of issued shares less treasury stock. Diluted earnings per share is calculated by dividing net earnings by the weighted average common shares outstanding adjusted for the dilutive effect of common stock equivalents related to stock options and the Company’s ESPP.

Outstanding stock options that are anti-dilutive are excluded from the Company’s diluted earnings per share computation. There were approximately 1.7 million, 1.5 million and 1.3 million shares covered by outstanding stock options that were not dilutive for the years ended March 31, 2015, 2014 and 2013, respectively.

The table below presents the computation of basic and diluted weighted average common shares outstanding for the years ended March 31, 2015, 2014 and 2013:

(In thousands, except per share amounts)	Years Ended March 31,
Basic Earnings per Share Computation	2015		2014		2013
Numerator:
Net earnings	$	368,086	$	350,784	$	340,874
Denominator:
Basic shares outstanding	74,702		73,623		76,651
Basic earnings per share	$	4.93	$	4.76	$	4.45
(In thousands, except per share amounts)	Years Ended March 31,
Diluted Earnings per Share Computation	2015		2014		2013
Numerator:
Net earnings	$	368,086	$	350,784	$	340,874
Denominator:
Basic shares outstanding	74,702		73,623		76,651
Incremental shares from assumed exercises and conversions:
Stock options and options under the Employee Stock Purchase Plan	1,149		1,287		1,656
Diluted shares outstanding	75,851		74,910		78,307
Diluted earnings per share	$	4.85	$	4.68	$	4.35

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Fair Value Measurements

12 Months Ended

Mar. 31, 2015

Fair Value Disclosures [Abstract]

Fair Value Measurements

FAIR VALUE MEASUREMENTS

Fair value is defined as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. Assets and liabilities recorded at fair value are classified based upon the level of judgment associated with the inputs used to measure their fair value. The hierarchical levels related to the subjectivity of the valuation inputs are defined as follows:

• Level 1 inputs are quoted prices (unadjusted) in active markets for identical assets or liabilities at the measurement date.

• Level 2 inputs are inputs, other than quoted prices included within Level 1, that are observable, directly or indirectly through corroboration with observable market data at the measurement date.

• Level 3 inputs are unobservable inputs that reflect management’s best estimate of the assumptions (including assumptions about risk) that market participants would use in pricing the asset or liability at the measurement date.

The carrying value of cash, trade receivables, other current receivables, trade payables and other current liabilities (e.g., deposit liabilities, cash overdrafts, etc.) approximates fair value based on the short-term maturity of these financial instruments.

Assets and Liabilities Measured at Fair Value on a Recurring Basis

Assets and liabilities measured at fair value on a recurring basis at March 31, 2015 and 2014 are categorized in the tables below based on the lowest level of significant input to the valuation. During the periods presented, there were no transfers between fair value hierarchical levels.

	Balance at		Quoted prices in active markets Level 1		Significant other observable inputs Level 2		Significant unobservable inputs Level 3
(In thousands)	March 31, 2015
Assets:
Deferred compensation plan assets	$	16,288	$	16,288	$	—	$	—
Liabilities:
Deferred compensation plan liabilities	$	16,288	$	16,288	$	—	$	—

	Balance at		Quoted prices in active markets Level 1		Significant other observable inputs Level 2		Significant unobservable inputs Level 3
(In thousands)	March 31, 2014
Assets:
Deferred compensation plan assets	$	16,387	$	16,387	$	—	$	—
Liabilities:
Deferred compensation plan liabilities	$	16,387	$	16,387	$	—	$	—

The following is a general description of the valuation methodologies used for financial assets and liabilities measured at fair value:

Deferred compensation plan assets and corresponding liabilities — The Company’s deferred compensation plan assets consist of open-ended mutual funds (Level 1) and are included within other non-current assets on the consolidated balance sheets. The Company’s deferred compensation plan liabilities are equal to the plan’s assets and are included within other non-current liabilities on the consolidated balance sheets. Gains or losses on the deferred compensation plan assets are recognized as other income, net, while gains or losses on the deferred compensation plan liabilities are recognized as compensation expense in the consolidated statements of earnings. See Note 18 for additional information on the Company’s deferred compensation plan.

Assets and Liabilities Measured at Fair Value on a Nonrecurring Basis

Certain assets and liabilities are measured at fair value on a nonrecurring basis in periods subsequent to initial recognition. Assets measured at fair value on a nonrecurring basis during the year ended March 31, 2013 are categorized in the table below based on the lowest level of significant input to the valuation. Other than these remeasured assets, there were no assets or liabilities measured at fair value on a nonrecurring basis during the years ended March 31, 2015, 2014 and 2013.

	Quoted prices in active markets Level 1		Significant other observable inputs Level 2		Significant unobservable inputs Level 3		Total losses (year ended March 31, 2013
(In thousands)
Assets:
Other intangible assets	$	—	$	—	$	535	$	1,729

In June 2012, the Company re-evaluated the economic viability of a small hospital piping construction business (see Note 7). As a result of an impairment analysis performed on the long-lived assets at this reporting unit, the Company recorded a charge of $1.7 million related to certain of the intangible assets associated with this business during the year ended March 31, 2013, which was reflected in the “Restructuring and other special charges, net” line item of the Company’s consolidated statement of earnings for the year ended March 31, 2013. The Company used a variation of the income approach, namely the excess earnings method, to estimate the fair value of the intangible assets associated with the business. Under this approach, an intangible asset’s fair value is estimated to be the present value of the incremental after-tax cash flows attributable solely to the intangible asset over its remaining useful life. Key inputs in this model include the cash flow forecast, discount rate, contributory asset charges and tax amortization benefits. As of the evaluation date, the remeasured other intangible assets related to this reporting unit totaled $0.5 million.

Fair Value of Debt

The carrying value of debt, which is reported on the Company’s consolidated balance sheets, generally reflects the cash proceeds received upon its issuance, net of subsequent repayments, plus the impact of the Company’s fair value hedges as applicable. The fair values of the fixed rate notes disclosed in the following table were determined based on quoted prices from the broker/dealer market, observable market inputs for similarly termed treasury notes adjusted for the Company’s credit spread and inputs management believes a market participant would use in determining imputed interest for obligations without a stated interest rate (Level 2). The fair values of the revolving credit borrowings, securitized receivables and commercial paper approximate their carrying values (see Note 9).

	Carrying Value at	Fair Value at	Carrying Value at	Fair Value at
(In thousands)	March 31, 2015	March 31, 2015	March 31, 2014	March 31, 2014
2014 Notes	—	—	399,952	407,092
2015 Notes	249,962	252,520	249,887	258,630
2016 Notes	249,918	254,953	249,848	259,257
2018 Notes	324,688	323,921	324,579	319,098
2020 Notes	274,791	274,821	274,748	265,600
2022 Notes	249,787	249,028	249,760	233,230
2024 Notes	299,462	310,500	—	—

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Fair Value Measurements (Assets and Liabilities Measured at Fair Value on a Nonrecurring Basis) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Mar. 31, 2013	Mar. 31, 2015	Mar. 31, 2014	Jun. 30, 2012
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impairment of other intangible assets	$ 1,729
Fair Value, Measurements, Nonrecurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets measured at fair value on a nonrecurring basis		0	0
Liabilities measured at fair value on a nonrecurring basis	0	0	0
Impairment of other intangible assets	1,729
Fair Value, Measurements, Nonrecurring [Member] | Quoted prices in active markets Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other intangible assets measured at fair value on a nonrecurring basis				0
Fair Value, Measurements, Nonrecurring [Member] | Significant other observable inputs Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other intangible assets measured at fair value on a nonrecurring basis				0
Fair Value, Measurements, Nonrecurring [Member] | Significant unobservable inputs Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other intangible assets measured at fair value on a nonrecurring basis				$ 535

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Goodwill and Other Intangible Assets

12 Months Ended

Mar. 31, 2015

Goodwill and Intangible Assets Disclosure [Abstract]

Goodwill And Other Intangible Assets

GOODWILL AND OTHER INTANGIBLE ASSETS

Goodwill

Goodwill is an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. The valuations of assets acquired and liabilities assumed from certain recent acquisitions are based on preliminary estimates of fair value and are subject to revision as the Company finalizes appraisals and other analysis. Changes in the carrying amount of goodwill by business segment for fiscal 2015 and 2014 were as follows:

(In thousands)	Distribution Business Segment			All Other Operations Business Segment			Total
Balance at March 31, 2013	$	998,128		$	197,485		$	1,195,613
Acquisitions (a)	95,626			(216		)	95,410
Other adjustments, including foreign currency translation	(1,026		)	(101		)	(1,127		)
Balance at March 31, 2014	1,092,728			197,168			1,289,896
Acquisitions (a)	26,872			60			26,932
Other adjustments, including foreign currency translation	(3,031		)	(153		)	(3,184		)
Balance at March 31, 2015	$	1,116,569		$	197,075		$	1,313,644

____________________

^(a)  Includes acquisitions completed during the respective year and adjustments made to prior year acquisitions.

Annual Test for Goodwill Impairment

The Company is required to test goodwill associated with each of its reporting units for impairment at least annually and whenever events or circumstances indicate that it is more likely than not that goodwill may be impaired. The Company performs its annual goodwill impairment test as of October 31 of each year. At October 31, 2014, the Company had 21 reporting units in the Distribution business segment and 5 reporting units in the All Other Operations business segment, each of which constitutes an operating segment for purposes of the Company’s segment reporting.

GAAP provides that prior to performing the traditional two-step goodwill impairment test, the Company is permitted to first perform a qualitative assessment about the likelihood of the carrying value of a reporting unit exceeding its fair value, referred to as the “Step 0” assessment. The Step 0 assessment requires the evaluation of certain events and circumstances such as macroeconomic conditions, industry and market considerations, cost factors and overall financial performance, as well as company and reporting unit-specific items. After performing the Step 0 assessment, should the Company determine that it is more likely than not that the fair value of a reporting unit is less than its carrying amount, it is required to perform the prescribed two-step goodwill impairment test to identify the potential goodwill impairment and measure the amount of the goodwill impairment loss, if any, to be recognized for that reporting unit. However, if the Company concludes otherwise based on the Step 0 assessment, the two-step goodwill impairment test is not required. The Step 0 assessment can be applied to none, some or all of the Company’s reporting units in any period, and the Company may also bypass the Step 0 assessment for any reporting unit in any period and proceed directly to performing the first step of the two-step goodwill impairment test for the given reporting unit.

For the October 31, 2014 goodwill impairment test, the Company applied the Step 0 assessment to all 21 of the reporting units in the Distribution business segment and 4 of the 5 reporting units in the All Other Operations business segment. After performing the Step 0 assessment for these reporting units, the Company concluded that it is more likely than not that the fair value of each reporting unit is greater than its carrying amount. Therefore, the two-step goodwill impairment test is not required for these reporting units.

However, the Company bypassed the option to perform the Step 0 assessment and proceeded directly to performing the first step of the two-step goodwill impairment test for the Company’s refrigerants business in the All Other Operations business segment. The Company determined the estimated fair value of the reporting unit as of October 31, 2014 using a discounted cash flow model and compared this value to the carrying value of the reporting unit. Significant assumptions used in the cash flow model include sales growth rates and profit margins based on the reporting unit’s business plan, future capital expenditures, working capital needs, and discount and perpetual growth rates. The discount rate used to estimate the fair value of the reporting unit exceeded the Company’s weighted average cost of capital as a whole, as the discount rate used for this purpose assigns a higher risk premium to the smaller entity. The perpetual growth rate assumed in the discounted cash flow model was in line with the long-term growth rate as measured by the U.S. Gross Domestic Product and the industry’s long-term rate of growth. In addition to Company and reporting unit-specific growth targets, general economic conditions, the long-term economic outlook for the U.S. economy, and market conditions affecting borrowing costs and returns on equity all influence the estimated fair value of the reporting unit. The Company’s methodology used for valuing this reporting unit for the purpose of its goodwill impairment test is consistent with the prior year.

For the Company’s refrigerants business, the result of the annual goodwill impairment test indicated that the fair value of the reporting unit was in excess of its carrying amount by slightly more than 10%. The forecasted cash flows for this business reflect changes in the regulatory environment and market responses to those changes, which were recently impacted by rulings from the United States Environmental Protection Agency (“EPA”). Volumes and pricing for the refrigerants business were pressured following the EPA ruling in March 2013 that allowed for an increase in the production and import of Refrigerant-22 (“R-22”) in calendar years 2013 and 2014, resulting in a greater-than-expected availability of virgin R-22 in the marketplace. In October 2014, the EPA posted its final calendar year 2015 to 2019 allocation rule pertaining to allowances for virgin production and consumption of hydrochlorofluorocarbons (“HCFCs”), including R-22. The final rule provided clarity on the pace and magnitude of the reduction in allowable production of R-22 for the calendar year 2015 to 2019 time period, beginning with an approximately 60% reduction for calendar year 2015 and ending with a final ban on all production effective January 1, 2020.

The Company believes its refrigerants business remains well-positioned over the long-term to benefit from the affirmed production and consumption reductions as a leading reclaimer and recycler of R-22, and that the impact from the EPA’s October 2014 ruling will be incrementally positive for its refrigerants business over the long-term. However, there is uncertainty as to how the final ruling will impact the market dynamics in the near-term, as the market sheds the excess inventory that has accumulated throughout the supply chain since the previous EPA ruling in March 2013. Changes in the reporting unit’s estimated future cash flows as a result of near-term uncertainty in the market based on the excess inventory build-up, as well as the pace and extent of marketplace migration toward the use of reclaimed product, could adversely affect the fair value or carrying amount of this reporting unit. As a result, the Company will continue to monitor this business and consider interim analyses of goodwill as appropriate. The amount of goodwill associated with this reporting unit was $88 million at March 31, 2015.

Other Intangible Assets

Other intangible assets by major class are as follows:

	March 31, 2015								March 31, 2014
(In thousands)	Weighted Average Amortization Period (Years)	Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount		Weighted Average Amortization Period (Years)	Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount
Customer relationships	17	$	345,805	$	(120,321	)	$	225,484	17	$	345,199	$	(107,577	)	$	237,622
Non-competition agreements	6	43,204		(24,335		)	18,869		7	40,316		(19,287		)	21,029
Other		200		(34		)	166			199		(14		)	185
		$	389,209	$	(144,690	)	$	244,519		$	385,714	$	(126,878	)	$	258,836

As the Company’s other intangible assets amortize and reach the end of their respective amortization periods, the fully amortized balances are removed from the gross carrying and accumulated amortization amounts. Amortization expense related to the Company’s other intangible assets for fiscal 2015 and 2014 was $30.0 million and $28.6 million, respectively. Estimated future amortization expense by fiscal year is as follows: fiscal 2016 - $29.1 million; 2017 - $27.2 million; 2018 - $25.4 million; 2019 - $23.4 million; 2020 - $21.9 million; and $117.5 million thereafter.

Prior Year Impairment Evaluation

In June 2012, the Company re-evaluated the economic viability of a small hospital piping construction business associated with a reporting unit in the Company’s All Other Operations business segment. In accordance with relevant accounting guidance, if events or circumstances exist indicating that it is more likely than not that goodwill may be impaired, the Company is required to perform an interim assessment of the carrying value of goodwill. However, prior to performing the test for goodwill impairment, the Company is required to perform an assessment of the recoverability of the long-lived assets (including amortizing intangible assets) of the business. Long-lived assets are not considered recoverable when the carrying amount of the long-lived asset or asset group exceeds the undiscounted expected future cash flows. If long-lived assets are not recoverable, an impairment loss is recognized to the extent that the carrying amount exceeds fair value.

As a result of the impairment analysis performed on the long-lived assets at this reporting unit, the Company recorded a charge of $1.7 million related to certain of the other intangible assets associated with this business during the year ended March 31, 2013. The charge was reflected in the “Restructuring and other special charges, net” line item of the Company’s consolidated statement of earnings and was not allocated to the Company’s business segments (see Note 21). See Note 11 for further information on the valuation methodology used in determining the impairment loss.

Subsequent to the intangible asset write-down, the Company performed an assessment of the carrying value of goodwill associated with the reporting unit. The assessment did not indicate that the reporting unit’s goodwill was potentially impaired.

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Income Taxes (Narrative) (Details) (USD $)	12 Months Ended
	Mar. 31, 2015	Mar. 31, 2014	Mar. 31, 2013
Income Tax Disclosure [Abstract]
Tax benefit from exercise of stock options	$ 16,000,000	$ 13,700,000	$ 36,200,000
Net operating loss carryforwards	12,061,000	13,081,000
Undistributed earnings of foreign subsidiaries	99,000,000
Unrecognized net income tax benefits	20,983,000	18,224,000	16,467,000
Federal deferred tax assets associated with unrecognized state tax benefits	8,600,000
Unrecognized tax benefits, income tax penalties and interest accrued	$ 4,700,000	$ 4,800,000

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Related Parties (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Mar. 31, 2015	Mar. 31, 2014	Mar. 31, 2013
Related Party Transactions [Abstract]
Payments to related parties	$ 4.2	$ 4.1	$ 3.9

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Income Taxes

12 Months Ended

Mar. 31, 2015

Income Tax Disclosure [Abstract]

Income Taxes

INCOME TAXES

Earnings before income taxes were derived from the following sources:

	Years Ended March 31,
(In thousands)	2015		2014		2013
United States	$	572,182	$	539,063	$	519,833
Foreign	11,939		12,842		23,584
	$	584,121	$	551,905	$	543,417

Income tax expense consists of:

	Years Ended March 31,
(In thousands)	2015		2014			2013
Current:
Federal	$	163,774	$	184,308		$	145,603
Foreign	2,010		4,561			7,042
State	17,410		19,121			13,589
	183,194		207,990			166,234
Deferred:
Federal	24,499		(4,722		)	26,993
Foreign	2,604		(1,127		)	(975		)
State	5,738		(1,020		)	10,291
	32,841		(6,869		)	36,309
	$	216,035	$	201,121		$	202,543

Significant differences between taxes computed at the federal statutory rate and the provision for income taxes were:

	Years Ended March 31,
	2015		2014		2013
Taxes at U.S. federal statutory rate	35.0	%	35.0	%	35.0	%
Increase (decrease) in income taxes resulting from:
State income taxes, net of federal benefit	2.6	%	2.1	%	2.9	%
Domestic production activities deduction	(1.0	)%	(1.0	)%	(0.9	)%
Other, net	0.4	%	0.3	%	0.3	%
	37.0	%	36.4	%	37.3	%

The tax effects of cumulative temporary differences and carryforwards that gave rise to the significant portions of the deferred tax assets and liabilities were as follows:

	March 31,
(In thousands)	2015			2014
Deferred Tax Assets:
Inventories	$	27,697		$	25,874
Deferred rental income	17,986			18,256
Insurance reserves	14,157			12,627
Litigation settlement and other reserves	3,132			3,181
Asset retirement obligations	7,553			7,180
Stock-based compensation	33,538			30,934
Other	19,876			21,864
Net operating loss carryforwards	12,061			13,081
Valuation allowance	(671		)	(308		)
	135,329			132,689
Deferred Tax Liabilities:
Plant and equipment	(711,840		)	(702,080		)
Intangible assets	(207,690		)	(188,289		)
Other	(12,301		)	(10,256		)
	(931,831		)	(900,625		)
Net deferred tax liability	$	(796,502	)	$	(767,936	)

Current deferred tax assets and current deferred tax liabilities have been netted for presentation purposes. Non-current deferred tax assets and non-current deferred tax liabilities have also been netted. Deferred tax assets and liabilities are reflected in the Company’s consolidated balance sheets as follows:

	March 31,
(In thousands)	2015			2014
Current deferred income tax asset, net	$	58,072		$	57,961
Non-current deferred income tax liability, net	(854,574		)	(825,897		)
Net deferred tax liability	$	(796,502	)	$	(767,936	)

The Company has recorded tax benefits amounting to $16.0 million, $13.7 million and $36.2 million in the years ended March 31, 2015, 2014 and 2013, respectively, resulting from the exercise of stock options. This benefit has been recorded in capital in excess of par value.

The Company has recorded deferred tax assets related to the expected future tax benefits of net operating losses of $12.1 million and $13.1 million as of March 31, 2015 and 2014, respectively. Federal and state net operating loss carryforwards expire at various times through 2034. Foreign net operating losses are available to offset future income taxes over an indefinite period.

U.S. income taxes have not been provided on approximately $99 million of undistributed earnings of non-U.S. subsidiaries because it is the Company’s intention to continue to reinvest these earnings in those subsidiaries to support their growth. Due to the timing and circumstances of repatriation of such earnings, if any, it is not practicable to determine the unrecognized deferred tax liability relating to such amounts.

As of March 31, 2015, the Company has unrecognized state tax benefits of approximately $21.0 million, which were recorded in other non-current liabilities, and a related $8.6 million of federal tax assets associated with those state tax benefits recorded in non-current deferred tax assets. If recognized, all of the unrecognized tax benefits and related interest and penalties would reduce tax expense. The Company does not anticipate significant changes in the amount of unrecognized income tax benefits over the next year.

A reconciliation of the beginning and ending amount of unrecognized net income tax benefits, including penalties associated with uncertain tax positions, is as follows:

	March 31,
(In thousands)	2015			2014
Beginning unrecognized net income tax benefits	$	18,224		$	16,467
Additions for current year tax positions	3,565			3,054
Additions for tax positions of prior years	1,288			151
Reductions for tax positions of prior years	(1,646		)	(1,448		)
Reductions for settlements with taxing authorities	(234		)	—
Reductions as a result of expiration of applicable statutes of limitations	(214		)	—
Ending unrecognized net income tax benefits	$	20,983		$	18,224

Interest and penalties recognized for the years ended March 31, 2015, 2014 and 2013 were classified as income tax expense in the Company’s consolidated statements of earnings and were not material. Consistent with past practice, the Company will continue to record interest and penalties associated with uncertain tax positions in income tax expense. The Company had approximately $4.7 million and $4.8 million for the payment of interest and penalties accrued at March 31, 2015 and 2014, respectively.

The Company files income tax returns in the United States and foreign jurisdictions. The Company also files income tax returns in every state which imposes corporate income tax. The Company is not under examination by the IRS or in any significant foreign, state or local tax jurisdictions. With limited exceptions, the Company is no longer subject to U.S. federal, state and local, or foreign income tax examinations by tax authorities for years before fiscal 2011.

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Plant and Equipment

12 Months Ended

Mar. 31, 2015

Property, Plant and Equipment [Abstract]

Plant and Equipment

PLANT AND EQUIPMENT

The major classes of plant and equipment, at cost, are as follows:

		March 31,
	Depreciable Lives (Yrs)	2015		2014
(In thousands)
Land and land improvements	—	$	225,721	$	209,195
Buildings and improvements	25	581,076		538,712
Cylinders	30	1,461,600		1,405,857
Bulk tank stations	10 to 30 (Average 17)	789,881		720,717
Rental equipment	2 to 10	466,833		403,351
Machinery and equipment	7 to 10	988,857		948,638
Computers, furniture and fixtures	3 to 10	338,316		303,400
Transportation equipment	3 to 15	369,034		341,709
Construction in progress	—	83,741		59,485
		$	5,305,059	$	4,931,064

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Accrued Expenses and Other Current Liabilities

12 Months Ended

Mar. 31, 2015

Accrued Liabilities and Other Liabilities [Abstract]

Accrued Expenses And Other Current Liabilities

ACCRUED EXPENSES AND OTHER CURRENT LIABILITIES

Accrued expenses and other current liabilities include:

(In thousands)	March 31, 2015		March 31, 2014
Accrued payroll and employee benefits	$	98,547	$	92,038
Business insurance reserves (a)	49,934		49,372
Taxes other than income taxes	22,863		25,183
Cash overdraft	71,537		68,245
Deferred rental revenue	34,538		34,557
Accrued interest	12,860		11,335
Other accrued expenses and current liabilities	56,600		64,946
	$	346,879	$	345,676

____________________

^(a)  With respect to the business insurance reserves above, the Company had corresponding insurance receivables of $11.6 million at March 31, 2015 and $11.8 million at March 31, 2014, which are included within the “Prepaid expenses and other current assets” line item on the Company’s consolidated balance sheets. The insurance receivables represent the balance of probable claim losses in excess of the Company’s deductible for which the Company is fully insured.

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Income Taxes (Deferred Tax Assets and Liabilities) (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Deferred Tax Assets
Inventories	$ 27,697	$ 25,874
Deferred rental income	17,986	18,256
Insurance reserves	14,157	12,627
Litigation settlement and other reserves	3,132	3,181
Asset retirement obligations	7,553	7,180
Stock-based compensation	33,538	30,934
Other	19,876	21,864
Net operating loss carryforwards	12,061	13,081
Valuation allowance	(671)	(308)
Deferred tax assets, net	135,329	132,689
Deferred Tax Liabilities
Plant and equipment	(711,840)	(702,080)
Intangible assets	207,690	188,289
Other	(12,301)	(10,256)
Deferred tax liabilities	(931,831)	(900,625)
Net deferred tax liability	$ (796,502)	$ (767,936)

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Valuation and Qualifying Accounts (Schedule of Valuation and Qualifying Accounts) (Details) (Accounts Receivable - Allowances for Doubtful Accounts [Member], USD $) In Thousands, unless otherwise specified	12 Months Ended
	Mar. 31, 2015		Mar. 31, 2014		Mar. 31, 2013
Accounts Receivable - Allowances for Doubtful Accounts [Member]
Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at beginning of period	$ 31,757		$ 28,650		$ 31,845
Additions charged to costs and expenses	15,843		20,310		23,427
Additions charged to other accounts	3,228	[1]	7,163	[1]	4,034	[1]
Deductions	(23,812)	[2]	(24,366)	[2]	(30,656)	[2]
Balance at end of period	$ 27,016		$ 31,757		$ 28,650

[1] Principally reflects subsequent collections of accounts previously written-off.

[2] Write-off of uncollectible accounts.

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Fair Value Measurements (Carrying Value and Fair Value of Debt) (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term debt, carrying value	$ 1,998,772	$ 2,107,096
4.50% senior notes due September 2014 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term debt, carrying value	0	399,952
Long-term debt, fair value	0	407,092
3.25% senior notes due October 2015 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term debt, carrying value	249,962	249,887
Long-term debt, fair value	252,520	258,630
2.95% senior notes due June 2016 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term debt, carrying value	249,918	249,848
Long-term debt, fair value	254,953	259,257
1.65% senior notes due February 2018 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term debt, carrying value	324,688	324,579
Long-term debt, fair value	323,921	319,098
2.375% senior notes due February 2020 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term debt, carrying value	274,791	274,748
Long-term debt, fair value	274,821	265,600
2.90% senior notes due November 2022 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term debt, carrying value	249,787	249,760
Long-term debt, fair value	249,028	233,230
3.65% senior notes due July 2024 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term debt, carrying value	299,462	0
Long-term debt, fair value	$ 310,500	$ 0

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Income Taxes (Unrecognized Net Income Tax Benefits) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Reconciliation of Unrecognized Tax Benefits [Roll Forward]
Beginning unrecognized net income tax benefits	$ 18,224	$ 16,467
Additions for current year tax positions	3,565	3,054
Additions for tax positions of prior years	1,288	151
Reductions for tax positions of prior years	(1,646)	(1,448)
Reductions for settlements with taxing authorities	(234)	0
Reductions as a result of expiration of applicable statutes of limitations	(214)	0
Ending unrecognized net income tax benefits	$ 20,983	$ 18,224

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Leases (Future Minimum Lease Payments) (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2015
Years Ending March 31,
2016	$ 104,273
2017	89,827
2018	74,021
2019	53,640
2020	34,677
Thereafter	52,182
Future minimum lease payments total	$ 408,620

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Income Taxes (Effective Income Tax Rate Reconciliation) (Details)	12 Months Ended
	Mar. 31, 2015	Mar. 31, 2014	Mar. 31, 2013
Income Tax Disclosure [Abstract]
Taxes at U.S. federal statutory rate	35.00%	35.00%	35.00%
Increase (decrease) in income taxes resulting from:
State income taxes, net of federal benefit	2.60%	2.10%	2.90%
Domestic production activities deduction	(1.00%)	(1.00%)	(0.90%)
Other, net	0.40%	0.30%	0.30%
Effective income tax rate	37.00%	36.40%	37.30%

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Stockholders' Equity (Changes in Accumulated Other Comprehensive Income) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Mar. 31, 2015		Mar. 31, 2014		Mar. 31, 2013
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning balance	$ 529		$ 4,438		$ 5,386
Other comprehensive income (loss) before reclassifications	(15,708)		(4,235)		(1,274)
Amounts reclassified from AOCI	517	[1]	517	[1]	517	[1]
Tax effect of other comprehensive income items	(191)		(191)		(191)
Other comprehensive income (loss), net of tax	(15,382)		(3,909)		(948)
Ending balance	(14,853)		529		4,438
Foreign Currency Translation Adjustments [Member]
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning balance	1,018		5,253		6,527
Other comprehensive income (loss) before reclassifications	(15,708)		(4,235)		(1,274)
Amounts reclassified from AOCI	0	[1]	0	[1]	0	[1]
Tax effect of other comprehensive income items	0		0		0
Other comprehensive income (loss), net of tax	(15,708)		(4,235)		(1,274)
Ending balance	(14,690)		1,018		5,253
Treasury Rate Lock Agreement [Member]
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning balance	(489)		(815)		(1,141)
Other comprehensive income (loss) before reclassifications	0		0		0
Amounts reclassified from AOCI	517	[1]	517	[1]	517	[1]
Tax effect of other comprehensive income items	(191)		(191)		(191)
Other comprehensive income (loss), net of tax	326		326		326
Ending balance	$ (163)		$ (489)		$ (815)

[1] The reclassifications out of AOCI were associated with a loss on a treasury rate lock agreement from July 2010 related to the issuance of the Company’s 2015 Notes, which is being reclassified into earnings (interest expense) over the term of the 2015 Notes. The effects on the respective line items of the consolidated statements of earnings impacted by the reclassifications were not material for the twelve months ended March 31, 2015, 2014 and 2013.

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Summary of Significant Accounting Policies (Policies)

12 Months Ended

Mar. 31, 2015

Accounting Policies [Abstract]

Basis of Presentation

The consolidated financial statements include the accounts of Airgas, Inc. and its subsidiaries. Intercompany accounts and transactions are eliminated in consolidation.

The Company has made estimates and assumptions relating to the reporting of assets and liabilities and disclosure of contingent assets and liabilities to prepare these consolidated financial statements in conformity with U.S. generally accepted accounting principles (“GAAP”). Estimates are used for, but not limited to, determining the net carrying value of trade receivables, inventories, plant and equipment, goodwill, other intangible assets, asset retirement obligations, business and health insurance reserves, loss contingencies and deferred tax assets. Actual results could differ from those estimates.

Cash and Cash Overdraft

On a daily basis, available funds are swept from depository accounts into a concentration account and used to repay borrowings under the Company’s commercial paper program. Cash principally represents the balance of customer checks that have not yet cleared through the banking system and become available to be swept into the concentration account, and deposits made subsequent to the daily cash sweep. The Company does not fund its disbursement accounts for checks it has written until the checks are presented to the bank for payment. Cash overdrafts represent the balance of outstanding checks and are classified with other current liabilities. There are no compensating balance requirements or other restrictions on the transfer of cash associated with the Company’s depository accounts.

Allowance for Doubtful Accounts

The Company maintains an allowance for doubtful accounts, which includes sales returns, sales allowances and bad debts. The allowance adjusts the carrying value of trade receivables for the estimate of accounts that will ultimately not be collected. An allowance for doubtful accounts is generally established as trade receivables age beyond their due dates, whether as bad debts or as sales returns and allowances. As past due balances age, higher valuation allowances are established, thereby lowering the net carrying value of receivables. The amount of valuation allowance established for each past-due period reflects the Company’s historical collections experience, including that related to sales returns and allowances, as well as current economic conditions and trends. The Company also qualitatively establishes valuation allowances for specific problem accounts and bankruptcies, and other accounts that the Company deems relevant for specifically identified allowances. The amounts ultimately collected on past due trade receivables are subject to numerous factors including general economic conditions, the condition of the receivable portfolios assumed in acquisitions, the financial condition of individual customers and the terms of reorganization for accounts exiting bankruptcy. Changes in these conditions impact the Company’s collection experience and may result in the recognition of higher or lower valuation allowances.

Inventories

Inventories are stated at the lower of cost or market. Cost is determined using the first-in, first-out (“FIFO”) and average-cost methods. Substantially all of the inventories are finished goods.

Plant and Equipment

Plant and equipment are initially stated at cost. Long-lived assets, including plant and equipment, are reviewed for impairment whenever events or changes in circumstances indicate that the recorded values cannot be recovered from the undiscounted future cash flows. For impairment testing purposes, long-lived assets are grouped with other assets and liabilities at the lowest level for which independent identifiable cash flows are determinable. When the book value of an asset or group of assets exceeds the associated undiscounted expected future cash flows, it is considered to be potentially impaired and is written down to fair value, which is determined based on either discounted future cash flows or appraised values. The Company also leases property, plant and equipment, principally under operating leases. Rent expense for operating leases, which may have escalating rentals or rent holidays, is recorded on a straight-line basis over the respective lease terms.

The Company determines depreciation expense using the straight-line method based on the estimated useful lives of the related assets. The Company uses accelerated depreciation methods for tax purposes where appropriate. Depreciation expense is recognized on the Company’s plant and equipment in the consolidated statement of earnings line item “Depreciation.”

The Company capitalizes the interest cost associated with the development and construction of significant new plant and equipment and depreciates that amount over the lives of the related assets. Capitalized interest recorded for construction in progress during each of the years in the three-year period ended March 31, 2015 was not material.

Computer Software

The Company capitalizes certain costs incurred to purchase or develop computer software for internal use. These costs include purchased software packages, payments to vendors and consultants for the development, implementation or modification of purchased software packages for Company use, payroll and related costs for employees associated with internal-use software projects, interest costs incurred in developing software for internal use, and software costs that allow for access or conversion of old data by new internal-use software. Capitalized computer software costs are included within plant and equipment on the Company’s consolidated balance sheets and depreciated over the estimated useful life of the computer software, which is generally three to ten years.

Goodwill and Intangible Assets

Goodwill is an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. The Company is required to test goodwill associated with each of its reporting units for impairment at least annually and whenever events or circumstances indicate that it is more likely than not that goodwill may be impaired. The Company performs its annual goodwill impairment test as of October 31 of each year.

Other intangible assets primarily consist of non-competition agreements and customer relationships resulting from business acquisitions. Both non-competition agreements and customer relationships are recorded based on their acquisition date fair values. Non-competition agreements are amortized using the straight-line method over the respective terms of the agreements. Customer relationships are amortized using the straight-line method over their estimated useful lives, which range from seven to 25 years. The determination of the estimated benefit periods associated with customer relationships is based on an analysis of historical customer sales attrition information and other customer-related factors at the date of acquisition. There are no expected residual values related to the Company’s other intangible assets.

The Company evaluates the estimated benefit periods and recoverability of its other intangible assets when facts and circumstances indicate that the lives may not be appropriate and/or the carrying values of the asset group containing other intangible assets may not be recoverable through the projected undiscounted future cash flows of the group. If the carrying value of the asset group containing other intangible assets is not recoverable, impairment is measured as the amount by which the carrying value exceeds its estimated fair value. Fair value is determined using discounted cash flows or other techniques.

Deferred Financing Costs

Financing costs related to the issuance of long-term debt are deferred and included in prepaid expenses and other current assets or in other non-current assets, depending upon the classification of the debt to which the costs relate. Deferred financing costs are amortized as interest expense over the term of the related debt instrument.

Asset Retirement Obligations

The fair value of a liability for an asset retirement obligation is recognized in the period during which the asset is placed in service. The fair value of the liability is estimated using projected discounted cash flows. In subsequent periods, the retirement obligation is accreted to its future value, which is the estimate of the obligation at the asset retirement date. When the asset is placed in service, a corresponding retirement asset equal to the fair value of the retirement obligation is also recorded as part of the carrying amount of the related long-lived asset and depreciated over the asset’s useful life. The majority of the Company’s asset retirement obligations are related to the restoration costs associated with returning plant and bulk tank sites to their original condition upon termination of long-term leases or supply agreements. The Company’s asset retirement obligations totaled $20.4 million and $19.0 million at March 31, 2015 and 2014, respectively, and are reflected within other non-current liabilities on the Company’s consolidated balance sheets.

Nonretirement Postemployment Benefits

The Company has a severance plan covering its eligible employees. The benefit payable under the plan is attributable to employee services rendered with benefits that accumulate over time. When employees are entitled to severance benefits as part of a restructuring plan (see Note 22) and the benefits are part of an ongoing benefit arrangement, a liability and associated charge is recognized when payment of the severance benefits becomes probable and estimable.

Loss Contingencies

Liabilities for loss contingencies arising from claims, assessments, litigation and other sources are recorded when it is probable that a liability has been incurred and the amount of the claim, assessment or damages can be reasonably estimated.

The Company maintains business insurance programs with deductible limits, which cover workers’ compensation, business automobile and general liability claims. The Company accrues estimated losses using actuarial models and assumptions based on historical loss experience. The actuarial calculations used to estimate business insurance reserves are based on numerous assumptions, some of which are subjective. The Company will adjust its business insurance reserves, if necessary, in the event future loss experience differs from historical loss patterns.

Income Taxes

Income taxes are accounted for under the asset and liability method. Deferred tax assets and liabilities are recognized for the future tax consequences attributable to differences between the financial statement carrying amounts of assets and liabilities and their respective tax bases, and operating loss carryforwards. Deferred tax assets and liabilities are measured using enacted tax rates expected to apply to taxable income in the years in which those temporary differences and operating loss carryforwards are expected to be recovered, settled or utilized. The effect on deferred tax assets and liabilities of a change in tax rates is recognized in income in the period that includes the enactment date. Valuation allowances are recorded to reduce deferred tax assets when it is more likely than not that a tax benefit will not be realized.

The Company recognizes the benefit of an income tax position only if it is more likely than not (greater than 50%) that the tax position will be sustained upon tax examination, based solely on the technical merits of the tax position. Otherwise, no benefit is recognized. The tax benefits recognized are measured based on the largest benefit that has a greater than 50% likelihood of being realized upon ultimate settlement. Additionally, the Company accrues interest and related penalties, if applicable, on all tax exposures for which reserves have been established consistent with jurisdictional tax laws. Interest and penalties are classified as income tax expense in the consolidated statements of earnings.

Foreign Currency Translation

The functional currency of the Company’s foreign operations is the applicable local currency. The translation of foreign currencies into U.S. dollars is performed for balance sheet accounts using current exchange rates in effect at the balance sheet date and for revenue and expense accounts using average exchange rates during each reporting period. The gains or losses resulting from such translations are included in stockholders’ equity as a component of accumulated other comprehensive income. Gains and losses arising from foreign currency transactions are reflected in the consolidated statements of earnings as incurred.

Treasury Stock

The Company records repurchases of its common stock for treasury at cost. Upon the reissuance of the Company’s common stock from treasury, differences between the proceeds from reissuance and the average cost of the treasury stock are credited or charged to capital in excess of par value to the extent of prior credits related to the reissuance of treasury stock. If no such credits exist, the differences are charged to retained earnings.

Concentrations of Credit Risk

Financial instruments that potentially subject the Company to concentrations of credit risk consist principally of trade receivables. Concentrations of credit risk are limited due to the Company’s large number of customers and their dispersion across many industries primarily throughout North America. Credit terms granted to customers are generally net 30 days.

Derivative Instruments and Hedging Activities

The Company’s involvement with derivative instruments has been limited to interest rate swap and treasury rate lock agreements used to manage well-defined interest rate risk exposures. An interest rate swap is a contractual exchange of interest payments between two parties. A standard interest rate swap involves the payment of a fixed rate times a notional amount by one party in exchange for receiving a floating rate times the same notional amount from the other party. As interest rates change, the difference to be paid or received is accrued and recognized as interest expense or income over the life of the agreement. Treasury rate lock agreements are used to fix the interest rate related to forecasted debt issuances. Interest rate swap and treasury rate lock agreements are not entered into for trading purposes.

When the Company has derivative instruments outstanding, it monitors its positions as well as the credit ratings of its counterparties, including the potential for non-performance by the counterparties. The Company recognizes outstanding derivative instruments as either assets or liabilities at fair value on the consolidated balance sheet. Interest rate contracts have traditionally been designated as hedges and recorded at fair value, with changes in fair value recognized in either accumulated other comprehensive income or in the carrying value of the hedged portions of fixed-rate debt, as applicable. Gains and losses on derivative instruments representing hedge ineffectiveness were recognized immediately in the respective year’s earnings.

Revenue Recognition

Revenue from sales of gases and hardgoods products is recognized when the product is shipped, the sales price is fixed or determinable and collectability is reasonably assured. Rental fees on cylinders, cryogenic liquid containers, bulk gas storage tanks and other equipment are recognized when earned. For contracts that contain multiple deliverables, principally product supply agreements for gases and container rental, revenue is recognized for each deliverable as a separate unit of accounting, with selling prices derived from Company specific or third-party evidence. For cylinder lease agreements in which rental fees are collected in advance, revenues are deferred and recognized over the respective terms of the lease agreements. Amounts billed for sales tax, value added tax or other transactional taxes imposed on revenue-producing transactions are presented on a net basis and are not recognized as revenue.

Cost of Products Sold (Excluding Depreciation)

Cost of products sold (excluding depreciation) for the Distribution business segment includes the cost of direct materials, freight-in and maintenance costs associated with cylinders, cryogenic liquid containers and bulk tanks. Cost of products sold (excluding depreciation) related to gases produced by the Company’s air separation facilities includes direct manufacturing expenses, such as direct labor, power and overhead.

Cost of products sold (excluding depreciation) for the All Other Operations business segment principally consists of direct material costs, freight-in and direct manufacturing expenses, such as direct labor, power and overhead.

Selling, Distribution and Administrative Expenses

Selling, distribution and administrative expenses consist of labor and overhead associated with the purchasing, marketing and distribution of the Company’s products, as well as costs associated with a variety of administrative functions such as legal, treasury, accounting and tax, and facility-related expenses.

Shipping and Handling Fees and Distribution Costs

The Company recognizes delivery and freight charges to customers as elements of net sales. Costs of third-party freight-in are recognized as cost of products sold (excluding depreciation). The majority of the costs associated with the distribution of the Company’s products, which include labor and overhead associated with filling, warehousing and delivery by Company and third-party vehicles, are reflected in selling, distribution and administrative expenses and were $889 million, $850 million and $841 million for the fiscal years ended March 31, 2015, 2014 and 2013, respectively. The Company conducts multiple operations out of the same facilities and does not allocate facility-related expenses to each operational function. Accordingly, there is no facility-related expense in the distribution costs disclosed above. Depreciation expense associated with the Company’s delivery fleet of $32 million, $32 million and $30 million was recognized in depreciation for the fiscal years ended March 31, 2015, 2014 and 2013, respectively.

Stock-based Compensation

The Company grants stock-based compensation awards in connection with its equity incentive and employee stock purchase plans. Stock-based compensation expense is generally recognized on a straight-line basis over the stated vesting period for each award, with accelerated vesting for retirement-eligible employees in accordance with the provisions of the equity incentive plan. See Note 13 for additional disclosures relating to stock-based compensation.

Business Combinations

Acquisitions are recorded using the acquisition method of accounting and accordingly, results of their operations are included in the Company’s consolidated financial statements from the effective date of each respective acquisition. The Company negotiates the respective purchase prices of acquired businesses based on the expected cash flows to be derived from their operations after integration into the Company’s existing distribution, production and service networks. The acquisition purchase price for each business is allocated based on the fair values of the assets acquired and liabilities assumed. Management estimates the fair values of acquired intangible assets other than goodwill using the income approach (i.e. discounted cash flows), and plant and equipment using either the cost or market approach, depending on the type of fixed asset.

Earnings Per Share

Basic earnings per share is calculated by dividing net earnings by the weighted average number of shares of the Company’s common stock outstanding during the period. Outstanding shares consist of issued shares less treasury stock. Diluted earnings per share is calculated by dividing net earnings by the weighted average common shares outstanding adjusted for the dilutive effect of common stock equivalents related to stock options and the Company’s ESPP.

Outstanding stock options that are anti-dilutive are excluded from the Company’s diluted earnings per share computation.

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Summary by Business Segment (Tables)

12 Months Ended

Mar. 31, 2015

Segment Reporting, Measurement Disclosures [Abstract]

Schedule of Financial Information by Segment

			Year Ended
	March 31, 2015
(In thousands)	Distribution		All Other Ops.		Eliminations and Other			Total
Gas and rent	$	2,823,297	$	556,941	$	(29,219	)	$	3,351,019
Hardgoods	1,950,192		3,681		(7		)	1,953,866
Net sales (a)	4,773,489		560,622		(29,226		)	5,304,885
Cost of products sold (excluding depreciation) (a)	2,092,466		292,635		(29,226		)	2,355,875
Selling, distribution and administrative expenses	1,792,116		186,558		—			1,978,674
Depreciation	272,200		25,510		—			297,710
Amortization	27,373		3,975		—			31,348
Total costs and expenses	4,184,155		508,678		(29,226		)	4,663,607
Operating income	$	589,334	$	51,944	$	—		$	641,278
Assets	$	5,397,535	$	576,075	$	—		$	5,973,610
Capital expenditures	$	438,867	$	29,922	$	—		$	468,789
	Year Ended
	March 31, 2014
(In thousands)	Distribution		All Other Ops.		Eliminations and Other			Total
Gas and rent	$	2,717,272	$	539,954	$	(30,404	)	$	3,226,822
Hardgoods	1,841,518		4,200		(3		)	1,845,715
Net sales (a)	4,558,790		544,154		(30,407		)	5,072,537
Cost of products sold (excluding depreciation) (a)	1,996,065		281,916		(30,407		)	2,247,574
Selling, distribution and administrative expenses	1,705,408		176,289		7,426			1,889,123
Depreciation	252,329		23,132		—			275,461
Amortization	25,512		4,333		—			29,845
Total costs and expenses	3,979,314		485,670		(22,981		)	4,442,003
Operating income	$	579,476	$	58,484	$	(7,426	)	$	630,534
Assets	$	5,222,781	$	570,533	$	—		$	5,793,314
Capital expenditures	$	317,066	$	37,521	$	—		$	354,587
	Year Ended
	March 31, 2013
(In thousands)	Distribution		All Other Ops.		Eliminations and Other			Total
Gas and rent	$	2,577,901	$	587,322	$	(34,201	)	$	3,131,022
Hardgoods	1,820,204		6,276		(5		)	1,826,475
Net sales (a)	4,398,105		593,598		(34,206		)	4,957,497
Cost of products sold (excluding depreciation) (a)	1,958,573		311,200		(34,206		)	2,235,567
Selling, distribution and administrative expenses	1,620,651		174,643		33,230			1,828,524
Restructuring and other special charges, net	—		—		8,089			8,089
Depreciation	240,167		21,455		—			261,622
Amortization	22,297		4,981		—			27,278
Total costs and expenses	3,841,688		512,279		7,113			4,361,080
Operating income	$	556,417	$	81,319	$	(41,319	)	$	596,417
Assets	$	5,047,042	$	571,183	$	—		$	5,618,225
Capital expenditures	$	300,431	$	25,034	$	—		$	325,465

____________________

^(a)  Amounts in the “Eliminations and Other” column represent the elimination of intercompany sales and associated gross profit on sales from the Company’s All Other Operations business segment to its Distribution business segment.

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Stock-Based Compensation

12 Months Ended

Mar. 31, 2015

Share-based Compensation, Allocation and Classification in Financial Statements [Abstract]

Stock-Based Compensation

STOCK-BASED COMPENSATION

The Company recognizes stock-based compensation expense for its equity incentive plan and Employee Stock Purchase Plan. The following table summarizes stock-based compensation expense recognized by the Company in each of the years in the three-year period ended March 31, 2015.

	Years Ended March 31,
(In thousands)	2015			2014			2013
Stock-based compensation expense related to:
Equity Incentive Plan	$	25,935		$	24,892		$	22,969
Employee Stock Purchase Plan - options to purchase stock	4,092			4,069			4,084
	30,027			28,961			27,053
Tax benefit	(10,624		)	(10,392		)	(9,338		)
Stock-based compensation expense, net of tax	$	19,403		$	18,569		$	17,715

2006 Equity Incentive Plan

On August 14, 2012, the Company’s stockholders approved the Second Amended and Restated 2006 Equity Incentive Plan (the “2006 Equity Plan”), which included, among other things, a 4.0 million increase in the maximum number of shares available for issuance under the plan. At March 31, 2015, a total of 11.8 million shares were authorized under the 2006 Equity Plan, as amended, for grants of stock options, stock appreciation rights, restricted stock and restricted stock units to employees, directors and consultants of the Company, of which 3.2 million shares of common stock were available for issuance.

Stock options granted prior to April 1, 2006 vest 25% annually and have a maximum term of ten years. Stock options granted subsequent to April 1, 2006 also vest 25% annually and have a maximum term of eight years. Stock options granted to directors vest and are fully exercisable immediately upon being granted.

Fair Value

The Company utilizes the Black-Scholes option pricing model to determine the fair value of stock options. The weighted-average grant date fair value of stock options granted during the fiscal years ended March 31, 2015, 2014 and 2013 was $28.72, $32.41 and $29.40, respectively. The following assumptions were used by the Company in valuing the stock options grants issued in each fiscal year:

	Fiscal 2015		Fiscal 2014		Fiscal 2013
Expected volatility	34.3	%	40.5	%	40.1	%
Expected dividend yield	2.06	%	1.95	%	1.83	%
Expected term	5.6 years		5.6 years		5.7 years
Risk-free interest rate	1.7	%	1.0	%	0.9	%

The expected volatility assumption used in valuing stock options was determined based on anticipated changes in the underlying stock price over the expected term using historical daily changes of the Company’s closing stock price. The expected dividend yield was based on the Company’s history and expectation of future dividend payouts. The expected term represents the period of time that the options are expected to be outstanding prior to exercise or forfeiture. The expected term was determined based on historical exercise patterns. The risk-free interest rate was based on U.S. Treasury rates in effect at the time of grant commensurate with the expected term.

Summary of Stock Option Activity

The following table summarizes the stock option activity during the three years ended March 31, 2015:

	Number of Stock Options		Weighted-Average Exercise Price		Aggregate Intrinsic Value (In thousands)
Outstanding at March 31, 2012	6,584,482		$	47.08
Granted	966,300		$	91.52
Exercised	(2,423,265	)	$	36.67
Forfeited	(75,501	)	$	67.86
Outstanding at March 31, 2013	5,052,016		$	60.26	$	196,527
Granted	959,700		$	102.96
Exercised	(817,016	)	$	47.38
Forfeited	(90,276	)	$	85.04
Outstanding at March 31, 2014	5,104,424		$	69.91	$	186,816
Granted	977,500		$	104.80
Exercised	(1,034,325	)	$	53.49
Forfeited	(73,929	)	$	98.24
Outstanding at March 31, 2015	4,973,670		$	79.76	$	131,135
Vested or expected to vest at March 31, 2015	4,959,195		$	79.69	$	131,100
Exercisable at March 31, 2015	2,839,584		$	65.87	$	114,318

The aggregate intrinsic value represents the difference between the Company’s closing stock price on the last trading day of each fiscal year and the exercise price of in-the-money stock options multiplied by the number of stock options outstanding or exercisable as of that date. The total intrinsic value of stock options exercised during the years ended March 31, 2015, 2014 and 2013 was $60.8 million, $47.0 million and $125.1 million, respectively. The weighted-average remaining contractual term of stock options outstanding as of March 31, 2015 was 4.6 years. Common stock to be issued in conjunction with future stock option exercises will be obtained from either new shares or shares from treasury stock.

As of March 31, 2015, $41.9 million of unrecognized non-cash compensation expense related to non-vested stock options is expected to be recognized over a weighted-average vesting period of 1.7 years.

Employee Stock Purchase Plan

The Company’s Employee Stock Purchase Plan (the “ESPP”) encourages and assists employees in acquiring an equity interest in the Company. As of March 31, 2015, the ESPP was authorized to issue up to 5.5 million shares of Company common stock, of which 1.1 million shares were available for issuance at March 31, 2015, 54,114 shares of which were issued on April 1, 2015.

Under the terms of the ESPP, eligible employees may elect to have up to 15% of their annual gross earnings withheld to purchase common stock at 85% of the market value. Employee purchases are limited in any calendar year to an aggregate market value of $25 thousand. Market value under the ESPP is defined as either the closing share price on the New York Stock Exchange as of an employee’s enrollment date or the closing price on the first business day of a fiscal quarter when the shares are purchased, whichever is lower. An employee may lock-in a purchase price for up to 12 months. The ESPP effectively resets at the beginning of each fiscal year at which time employees are re-enrolled in the plan and a new 12-month purchase price is established. The ESPP is designed to comply with the requirements of Sections 421 and 423 of the Internal Revenue Code.

Fair Value

Compensation expense is measured based on the fair value of the employees’ option to purchase shares of common stock at the grant date and is recognized over the future periods in which the related employee service is rendered. The fair value per share of employee options to purchase shares under the ESPP was $20.44, $19.27 and $16.73 for the years ended March 31, 2015, 2014 and 2013, respectively. The fair value of the employees’ option to purchase shares of common stock was estimated using the Black-Scholes model. The following assumptions were used by the Company in valuing the employees’ option to purchase shares of common stock under the ESPP:

	Fiscal 2015		Fiscal 2014		Fiscal 2013
Expected volatility	17.1	%	19.5	%	23.2	%
Expected dividend yield	2.07	%	1.96	%	2.19	%
Expected term	3 to 9 months		3 to 9 months		3 to 6 months
Risk-free interest rate	0.06	%	0.08	%	0.10	%

ESPP - Purchase Option Activity

The following table summarizes the activity of the ESPP during the three years ended March 31, 2015:

	Number of Purchase Options		Weighted-Average Exercise Price		Aggregate Intrinsic Value (In thousands)
Outstanding at March 31, 2012	79,208		$	51.61
Granted	244,122		$	70.74
Exercised	(261,193	)	$	65.42
Outstanding at March 31, 2013	62,137		$	68.74	$	1,890
Granted	211,093		$	82.88
Exercised	(218,109	)	$	79.38
Outstanding at March 31, 2014	55,121		$	80.77	$	1,419
Granted	200,030		$	90.82
Exercised	(201,037	)	$	89.24
Outstanding at March 31, 2015	54,114		$	86.47	$	1,063

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Restructuring and Other Special Charges, Net (Components of Restructuring) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Mar. 31, 2015	Mar. 31, 2014	Mar. 31, 2013
Restructuring Charges [Abstract]
Restructuring costs (benefits), net			$ (2,177)
Other related costs			8,537
Intangible asset impairment charge			1,729
Total restructuring and other special charges, net	$ 0	$ 0	$ 8,089

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Benefit Plans

12 Months Ended

Mar. 31, 2015

General Discussion of Pension and Other Postretirement Benefits [Abstract]

Benefit Plans

BENEFIT PLANS

The Company has a defined contribution 401(k) plan (the “401(k) plan”) covering substantially all full-time employees. Under the terms of the 401(k) plan, the Company makes matching contributions of up to two percent of participant wages. Amounts expensed under the 401(k) plan for fiscal 2015, 2014 and 2013 were $13.0 million, $12.3 million and $11.7 million, respectively.

The Company has a deferred compensation plan that is a non-qualified plan. The deferred compensation plan allows eligible employees and non-employee directors, who elect to participate in the plan, to defer the receipt of taxable compensation. Participants may set aside up to a maximum of 75% of their base salary and up to a maximum of 100% of their bonus compensation or directors’ fees in tax-deferred investments. The Company’s deferred compensation plan liabilities are funded through an irrevocable rabbi trust. The assets of the trust, which consist of open-ended mutual funds, cannot be reached by the Company or its creditors except in the event of the Company’s insolvency or bankruptcy. Assets held in the rabbi trust were $16.3 million and $16.4 million at March 31, 2015 and 2014, respectively, and are included within other non-current assets on the consolidated balance sheets. The Company’s deferred compensation plan liabilities were $16.3 million and $16.4 million at March 31, 2015 and 2014, respectively, and are included within other non-current liabilities on the consolidated balance sheets. Gains or losses on the deferred compensation plan assets are recognized as other income, net, while gains or losses on the deferred compensation plan liabilities are recognized as compensation expense in the consolidated statements of earnings.

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Stock-Based Compensation (Stock Option Grant Assumptions) (Details) (Stock Options [Member])	12 Months Ended
	Mar. 31, 2015	Mar. 31, 2014	Mar. 31, 2013
Stock Options [Member]
Valuation Assumption [Line Items]
Expected volatility	34.30%	40.50%	40.10%
Expected dividend yield	2.06%	1.95%	1.83%
Expected term, average years	5 years 7 months	5 years 7 months	5 years 8 months
Risk-free interest rate	1.70%	1.00%	0.90%

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Commitments and Contingencies (Tables)

12 Months Ended

Mar. 31, 2015

Commitments and Contingencies Disclosure [Abstract]

Future Commitments Under Take or Pay Supply Agreements

At March 31, 2015, future commitments under take-or-pay supply agreements were as follows:

(In thousands)
Years Ending March 31,
2016	$	221,228
2017	218,840
2018	175,250
2019	141,722
2020	97,170
Thereafter	275,656
	$	1,129,866

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Commitments and Contingencies (Future Commitments Under Take or Pay Supply Agreements) (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2015
Years Ending March 31, [Abstract]
2016	$ 221,228
2017	218,840
2018	175,250
2019	141,722
2020	97,170
Thereafter	275,656
Future commitments under take-or-pay supply agreements	$ 1,129,866

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Indebtedness (Tables)

12 Months Ended

Mar. 31, 2015

Debt Instruments [Abstract]

Schedule Of Debt

Total debt consists of:

(In thousands)	March 31, 2015			March 31, 2014
Short-term
Money market loans	$	—		$	—
Commercial paper	325,871			387,866
Short-term debt	$	325,871		$	387,866
Long-term
Trade receivables securitization	$	295,000		$	295,000
Revolving credit borrowings - U.S.	—			—
Revolving credit borrowings - Multi-currency	48,332			54,230
Revolving credit borrowings - France	6,277			8,056
Senior notes, net	1,648,608			1,748,774
Other long-term debt	555			1,036
Total long-term debt	1,998,772			2,107,096
Less current portion of long-term debt	(250,110		)	(400,322		)
Long-term debt, excluding current portion	$	1,748,662		$	1,706,774
Total debt	$	2,324,643		$	2,494,962

Schedule of Senior Notes

The Company’s senior notes consisted of the following:

(In thousands)						Principal
Description	Coupon	Yield	Maturity Date	Semi-annual Interest Payment Dates		March 31, 2015			March 31, 2014
2014 Notes (a)	4.50%	4.527%	09/15/2014	March 15 and September 15		$	—		$	400,000
2015 Notes (b)	3.25%	3.283%	10/01/2015	April 1 and October 1		250,000			250,000
2016 Notes	2.95%	2.980%	06/15/2016	June 15 and December 15		250,000			250,000
2018 Notes	1.65%	1.685%	02/15/2018	February 15 and August 15		325,000			325,000
2020 Notes	2.375%	2.392%	02/15/2020	February 15 and August 15		275,000			275,000
2022 Notes	2.90%	2.913%	11/15/2022	May 15 and November 15		250,000			250,000
2024 Notes (c)	3.65%	3.673%	07/15/2024	January 15 and July 15		300,000			—
						1,650,000			1,750,000
				Less: unamortized discount		(1,392		)	(1,226		)
					Senior notes, net	$	1,648,608		$	1,748,774

____________________

^(a)  The 2014 Notes were repaid by the Company in September 2014.

^(b)  The 2015 Notes are included within the “Current portion of long-term debt” line item on the Company’s consolidated balance sheet based on the maturity date.

^(c)  On June 17, 2014, the Company issued the 2024 Notes. The net proceeds from the sale of the 2024 Notes were used for general corporate purposes, including to fund acquisitions and repay indebtedness under the Company’s commercial paper program. Interest payments on the 2024 Notes commenced on January 15, 2015.

Schedule of Maturities of Long-term Debt

The aggregate maturities of long-term debt at March 31, 2015 are as follows:

(In thousands)	Debt Maturities  (a)
Years Ending March 31,
2016	$	250,147
2017	250,311
2018	620,095
2019	—
2020	329,610
Thereafter	550,000
	$	2,000,163

____________________

^(a)  Outstanding borrowings under the Securitization Agreement at March 31, 2015 are reflected as maturing at the agreement’s expiration in December 2017.

The Senior Notes are reflected in the debt maturity schedule at their maturity values rather than their carrying values, which are net of aggregate discounts of $1.4 million at March 31, 2015.

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Commitments and Contingencies (Letters of Credit) (Details) (USD $) In Millions, unless otherwise specified	Mar. 31, 2015
Commitments and Contingencies Disclosure [Abstract]
Letters of credit outstanding	$ 51

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Consolidated Balance Sheets Consolidated Balance Sheets (Parenthetical) (USD $) In Thousands, except Share data, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Allowance for doubtful accounts receivable	$ 27,016	$ 31,757
Preferred stock, shares authorized	20,030,000	20,030,000
Preferred stock, shares issued	0	0
Preferred stock, shares outstanding	0	0
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares authorized	200,000,000	200,000,000
Common stock, shares issued	87,554,000	87,353,000
Treasury stock, shares	12,197,000	13,264,000

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Stockholders' Equity (Dividends) (Details) (USD $)	3 Months Ended												12 Months Ended			0 Months Ended
	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2015	Mar. 31, 2014	Mar. 31, 2013	Apr. 07, 2015
Stockholders' Equity Note [Abstract]
Cash dividends paid	$ 0.55	$ 0.55	$ 0.55	$ 0.55	$ 0.48	$ 0.48	$ 0.48	$ 0.48	$ 0.40	$ 0.40	$ 0.40	$ 0.40	$ 2.20	$ 1.92	$ 1.6
Subsequent Event [Member]
Subsequent Event [Line Items]
Cash dividend declared																$ 0.60

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Accounting and Disclosure Changes

12 Months Ended

Mar. 31, 2015

New Accounting Pronouncements and Changes in Accounting Principles [Abstract]

Accounting And Disclosure Changes

ACCOUNTING AND DISCLOSURE CHANGES

Recently Adopted Accounting Pronouncements

In March 2013, the Financial Accounting Standards Board (“FASB”) issued new guidance clarifying the accounting for the release of cumulative translation adjustments (“CTA”) into net income upon the occurrence of certain sale or other derecognition transactions related to foreign entities. The new guidance describes the circumstances in which CTA should be released (either partially or fully) into net income based on the type of transaction related to a foreign entity. The Company adopted the new guidance effective April 1, 2014. The guidance did not have an impact on the Company’s financial position, results of operation or liquidity upon adoption.

In July 2013, the FASB issued new guidance clarifying the financial statement presentation of unrecognized tax benefits. The new guidance specifies that an unrecognized tax benefit (or a portion thereof) shall be presented in the financial statements as a reduction to a deferred tax asset depending on the availability of certain deferred tax assets to settle the additional income taxes resulting from the disallowance of a tax position. If the deferred tax asset is not available or the entity does not plan to use the deferred tax asset for such purpose given the option, the unrecognized tax benefit shall be presented in the financial statements as a liability and shall not be combined with deferred tax assets. The Company adopted the new guidance effective April 1, 2014, with no material impact on the balance sheet presentation of its unrecognized tax benefits.

Accounting Pronouncements Not Yet Adopted

In April 2014, the FASB issued new guidance on the reporting of discontinued operations. The guidance amends existing standards by limiting the presentation of discontinued operations to disposals that represent a strategic shift with a major effect on an entity’s operations and financial results. In contrast, many disposals under current standards, which may be more routine in nature and not change an entity’s strategy, are reported in discontinued operations. The guidance also requires new disclosures around both disposals qualifying for discontinued operations as well as significant disposals that are not considered discontinued operations. The Company adopted the new guidance effective April 1, 2015. The guidance did not have an impact on the Company’s consolidated financial statements and related disclosures upon adoption. The Company will prospectively apply the provisions of the new guidance to applicable disposal transactions.

In May 2014, the FASB issued new guidance on the accounting for revenue from contracts with customers, which requires an entity to recognize the amount of revenue to which it expects to be entitled for the transfer of promised goods or services to customers. The new guidance will replace most existing GAAP revenue recognition guidance when it becomes effective. The new standard is effective for the Company on April 1, 2017, and early application is not permitted. The standard permits the use of either the retrospective or cumulative effect transition method. The Company is evaluating the effect that the new guidance will have on its consolidated financial statements and related disclosures. The Company has not yet selected a transition method nor has it determined the effect of the standard on its ongoing financial reporting.

In February 2015, the FASB issued new guidance changing the analysis that a reporting entity must perform to determine whether it should consolidate certain types of legal entities. The new guidance changes the way reporting enterprises evaluate whether (a) they should consolidate limited partnerships and similar entities, (b) fees paid to a decision maker or service provider are variable interests in a variable interest entity (VIE), and (c) variable interests in a VIE held by related parties of the reporting enterprise require the reporting enterprise to consolidate the VIE. The new guidance is effective for the Company on April 1, 2016, with early adoption permitted, including early adoption in an interim period. The new guidance may be applied using either a modified retrospective approach or on a full retrospective basis. The Company does not expect this adoption to have a material impact on its consolidated financial statements.

In April 2015, the FASB issued new guidance simplifying the financial statement presentation of debt issuance costs. The new guidance specifies that debt issuance costs related to a recognized debt liability shall be presented in the balance sheet as a direct deduction from the carrying amount of that debt liability, consistent with debt discounts. The recognition and measurement guidance for debt issuance costs are not affected by the amendments in this accounting standards update. The new guidance is effective for the Company on April 1, 2016, with early adoption permitted, for financial statements that have not been previously issued. The new guidance must be applied on a retrospective basis. The Company does not expect this adoption to have a material impact on its consolidated financial statements.

In April 2015, the FASB issued new guidance on customer’s accounting for fees paid in a cloud computing arrangement. The amendments in this accounting standards update provide guidance to customers about whether a cloud computing arrangement includes a software license. The new guidance clarifies that if a cloud computing arrangement includes a software license, the customer should account for the software license element of the arrangement consistent with the acquisition of other software licenses. If the arrangement does not include a software license, the customer should account for the arrangement as a service contract. The guidance will not change generally accepted accounting principles for a customer’s accounting for service contracts. The new guidance is effective for the Company on April 1, 2016, with early adoption permitted. The new guidance may be applied either prospectively to all arrangements entered into or materially modified after the effective date or on a retrospective basis. The Company does not expect this adoption to have a material impact on its consolidated financial statements.

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Acquisitions and Divestitures (Divestitures Narrative) (Details) (USD $)	12 Months Ended
	Mar. 31, 2015 locations	Mar. 31, 2014	Mar. 31, 2013	Jun. 01, 2012 locations
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Number of locations	1,100
Gain on sale of divestitures	$ 0	$ 0	$ 6,822,000
Gain on sale of divestitures, net of tax			$ 5,500,000
Canadian Branches [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Number of locations				5

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Derivative Instruments and Hedging Activities (Effect on Earnings) (Details) (Interest Rate Swap [Member], Interest Expense [Member], Fair Value Hedging [Member], USD $) In Thousands, unless otherwise specified	12 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Interest Rate Swap [Member] | Interest Expense [Member] | Fair Value Hedging [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Change in fair value of variable interest rate swaps	$ (2,490)	$ (4,244)
Change in carrying value of 2013 Notes	2,496	4,273
Net effect	$ 6	$ 29

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Commitments and Contingencies Commitments and Contingencies (Construction Commitments) (Details) (Capital Addition Purchase Commitments [Member], USD $) In Millions, unless otherwise specified	0 Months Ended
	Mar. 31, 2015	Mar. 31, 2015 customers
Capital Addition Purchase Commitments [Member]
Long-term Purchase Commitment [Line Items]
Construction commitments	$ 83
Number of customers	2	2

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Goodwill and Other Intangible Assets (Annual Test for Goodwill Impairment) (Details) (USD $) In Thousands, unless otherwise specified	0 Months Ended
	Oct. 31, 2014 reporting_units	Mar. 31, 2015	Oct. 31, 2014 reporting_units	Mar. 31, 2014	Mar. 31, 2013
Goodwill [Line Items]
Goodwill		$ 1,313,644		$ 1,289,896	$ 1,195,613
Distribution Business Segment [Member]
Goodwill [Line Items]
Number of reporting units	21
Number of reporting units, applied step 0 of goodwill impairment test	21		21
Goodwill		1,116,569		1,092,728	998,128
All Other Operations Business Segment [Member]
Goodwill [Line Items]
Number of reporting units	5
Number of reporting units, applied step 0 of goodwill impairment test	4		4
Goodwill		197,075		197,168	197,485
Refrigerants [Member]
Goodwill [Line Items]
Reporting Unit, Percentage of Fair Value in Excess of Carrying Amount	10.00%		10.00%
Goodwill		$ 88,000

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Related Parties

12 Months Ended

Mar. 31, 2015

Related Party Transactions [Abstract]

Related Parties

RELATED PARTIES

The Company purchases and sells goods and services in the ordinary course of business with certain corporations in which some of its directors are officers or directors. The Company also leases certain operating facilities from employees who were previous owners of businesses acquired. Payments made to related parties for fiscal 2015, 2014 and 2013 were $4.2 million, $4.1 million and $3.9 million, respectively. Amounts paid to related parties represented values considered fair and reasonable and reflective of arm’s length transactions.

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Restructuring and Other Special Charges, Net (Schedule of Restructuring Liabilities) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Mar. 31, 2015	Mar. 31, 2014	Mar. 31, 2013	Mar. 31, 2012
Restructuring Reserve [Roll Forward]
Restructuring reserve at period start date	$ 1,438	$ 4,996	$ 14,128
Restructuring charges			1,523
Cash payments	(1,438)	(3,558)	(6,955)
Other adjustments			(3,700)
Restructuring reserve at period end date	0	1,438	4,996
Severance Costs [Member]
Restructuring Reserve [Roll Forward]
Restructuring reserve at period start date	1,361	4,682	13,138
Restructuring charges			0	13,300
Cash payments	(1,361)	(3,321)	(4,756)
Other adjustments			(3,700)
Restructuring reserve at period end date	0	1,361	4,682	13,138
Facility Closing and Other Restructuring Costs [Member]
Restructuring Reserve [Roll Forward]
Restructuring reserve at period start date	77	314	990
Restructuring charges			1,523
Cash payments	(77)	(237)	(2,199)
Other adjustments			0
Restructuring reserve at period end date	$ 0	$ 77	$ 314

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Indebtedness (Money Market Loans Narrative) (Details) (USD $)	12 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Debt Instrument [Line Items]
Short-term debt	$ 325,871,000	$ 387,866,000
Money market loans [Member]
Debt Instrument [Line Items]
Short-term debt	0	0
Money market loans [Member] | Agreement expiring in December 2015 [Member]
Debt Instrument [Line Items]
Short-term debt	0
Short-term debt, terms	advances may be for one to six months with rates at a fixed spread over the corresponding London Interbank Offering Rate (“LIBOR”)
Money market loans [Member] | Agreement expiring in July 2015 [Member]
Debt Instrument [Line Items]
Short-term debt	0
Short-term debt, terms	advances are generally overnight or for up to seven days. The amount, term and interest rate of an advance are established through mutual agreement with the financial institution when the Company requests such an advance
Maximum [Member] | Money market loans [Member] | Agreement expiring in December 2015 [Member]
Debt Instrument [Line Items]
Short-term debt	35,000,000
Short-term debt maturity period	6 months
Maximum [Member] | Money market loans [Member] | Agreement expiring in July 2015 [Member]
Debt Instrument [Line Items]
Short-term debt	$ 35,000,000
Short-term debt maturity period	7 days
Minimum [Member] | Money market loans [Member] | Agreement expiring in December 2015 [Member]
Debt Instrument [Line Items]
Short-term debt maturity period	1 month

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Plant and Equipment (Tables)

12 Months Ended

Mar. 31, 2015

Property, Plant and Equipment [Abstract]

Plant and Equipment

The major classes of plant and equipment, at cost, are as follows:

		March 31,
	Depreciable Lives (Yrs)	2015		2014
(In thousands)
Land and land improvements	—	$	225,721	$	209,195
Buildings and improvements	25	581,076		538,712
Cylinders	30	1,461,600		1,405,857
Bulk tank stations	10 to 30 (Average 17)	789,881		720,717
Rental equipment	2 to 10	466,833		403,351
Machinery and equipment	7 to 10	988,857		948,638
Computers, furniture and fixtures	3 to 10	338,316		303,400
Transportation equipment	3 to 15	369,034		341,709
Construction in progress	—	83,741		59,485
		$	5,305,059	$	4,931,064

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Stockholders' Equity

12 Months Ended

Mar. 31, 2015

Stockholders' Equity Note [Abstract]

Stockholders' Equity

STOCKHOLDERS’ EQUITY

Common Stock

The Company is authorized to issue up to 200 million shares of common stock with a par value of $0.01 per share. At March 31, 2015, the number of shares of common stock outstanding was 75.4 million, excluding 12.2 million shares of common stock held as treasury stock. At March 31, 2014, the number of shares of common stock outstanding was 74.1 million, excluding 13.3 million shares of common stock held as treasury stock.

Preferred Stock and Redeemable Preferred Stock

The Company is authorized to issue up to 20 million shares of preferred stock. Of the 20 million shares authorized, 200 thousand shares have been designated as Series A Junior Participating Preferred Stock, 200 thousand shares have been designated as Series B Junior Participating Preferred Stock and 200 thousand shares have been designated as Series C Junior Participating Preferred Stock (see Stockholder Rights Plan below). At March 31, 2015 and 2014, no shares of the preferred stock were issued or outstanding. The preferred stock may be issued from time to time by the Company’s Board of Directors in one or more series. The Board of Directors is authorized to fix the dividend rights and terms, conversion rights, voting rights, rights and terms of redemption, liquidation preferences, and any other rights, preferences, privileges and restrictions of any series of preferred stock, and the number of shares constituting such series and designation thereof.

Additionally, the Company is authorized to issue 30 thousand shares of redeemable preferred stock. At March 31, 2015 and 2014, no shares of redeemable preferred stock were issued or outstanding.

Dividends

The Company paid its stockholders regular quarterly cash dividends of $0.55, $0.48 and $0.40 per share at the end of each of its fiscal quarters during the years ended March 31, 2015, 2014 and 2013, respectively. On April 7, 2015, the Company’s Board of Directors declared a cash dividend of $0.60 per share, which is payable on June 30, 2015 to the stockholders of record as of June 15, 2015. Future dividend declarations and associated amounts paid will depend upon the Company’s earnings, financial condition, loan covenants, capital requirements and other factors deemed relevant by management and the Company’s Board of Directors.

Stockholder Rights Plan

Effective May 8, 2007, the Company’s Board of Directors adopted a stockholder rights plan (the “2007 Rights Plan”). Pursuant to the 2007 Rights Plan, the Board of Directors declared a dividend distribution of one right for each share of common stock. Each right entitles the holder to purchase from the Company one ten-thousandth of a share of Series C Junior Participating Preferred Stock at an initial exercise price of $230 per share. The 2007 Rights Plan is intended to assure that all of the Company’s stockholders receive fair and equal treatment in the event of any proposed takeover of the Company and to protect stockholders’ interests in the event the Company is confronted with partial tender offers or other coercive or unfair takeover tactics.

Rights become exercisable after ten days following the acquisition by a person or group of 15% (or 20% in the case of Peter McCausland and certain of his affiliates) or more of the Company’s outstanding common stock, or ten business days (or later if determined by the Board of Directors in accordance with the plan) after the announcement of a tender offer or exchange offer to acquire 15% (or 20% in the case of Peter McCausland and certain of his affiliates) or more of the outstanding common stock. If such a person or group acquires 15% or more (or 20% or more, as the case may be) of the common stock, each right (other than such person’s or group’s rights, which will become void) will entitle the holder to purchase, at the exercise price, common stock having a market value equal to twice the exercise price. In certain circumstances, the rights may be redeemed by the Company at an initial redemption price of $0.0001 per right. If not redeemed, the rights will expire on May 8, 2017.

Stock Repurchase Program

In October 2012, the Company announced a share repurchase program, with authorization to repurchase up to $600 million of its common stock. By March 31, 2013, 6.3 million shares had been repurchased for approximately $600 million.

Comprehensive Income

The Company’s comprehensive income was $353 million, $347 million and $340 million for the years ended March 31, 2015, 2014 and 2013, respectively. Comprehensive income consists of net earnings, foreign currency translation adjustments, net gain or loss on derivative instruments and the net tax expense or benefit of other comprehensive income items. Net tax expense or benefit of comprehensive income items pertains to the Company’s derivative instruments only, as foreign currency translation adjustments relate to permanent investments in foreign subsidiaries. The net gain or loss on derivative instruments reflects valuation adjustments for changes in interest rates, as well as cash settlements with the counterparties and reclassification adjustments to income. See Note 10 for further information on derivative instruments. The following table presents the gross and net changes in the balances within each component of AOCI for each of the years in the three-year period ended March 31, 2015.

(In thousands)	Foreign Currency Translation Adjustments			Treasury Rate Lock Agreement			Total Accumulated Other Comprehensive Income (Loss)
Balance at March 31, 2012	$	6,527		$	(1,141	)	$	5,386
Other comprehensive income (loss) before reclassifications	(1,274		)	—			(1,274		)
Amounts reclassified from AOCI (a)	—			517			517
Tax effect of other comprehensive income items	—			(191		)	(191		)
Other comprehensive income (loss), net of tax	(1,274		)	326			(948		)
Balance at March 31, 2013	5,253			(815		)	4,438
Other comprehensive income (loss) before reclassifications	(4,235		)	—			(4,235		)
Amounts reclassified from AOCI (a)	—			517			517
Tax effect of other comprehensive income items	—			(191		)	(191		)
Other comprehensive income (loss), net of tax	(4,235		)	326			(3,909		)
Balance at March 31, 2014	1,018			(489		)	529
Other comprehensive income (loss) before reclassifications	(15,708		)	—			(15,708		)
Amounts reclassified from AOCI (a)	—			517			517
Tax effect of other comprehensive income items	—			(191		)	(191		)
Other comprehensive income (loss), net of tax	(15,708		)	326			(15,382		)
Balance at March 31, 2015	$	(14,690	)	$	(163	)	$	(14,853	)

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^(a)  The reclassifications out of AOCI were associated with a loss on a treasury rate lock agreement from July 2010 related to the issuance of the Company’s 2015 Notes, which is being reclassified into earnings (interest expense) over the term of the 2015 Notes. The effects on the respective line items of the consolidated statements of earnings impacted by the reclassifications were not material for the twelve months endedMarch 31, 2015, 2014 and 2013.

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Leases (Narrative) (Details) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Mar. 31, 2015	Mar. 31, 2014	Mar. 31, 2013
Leases [Abstract]
Operating leases, rent expense net	$ 121	$ 110	$ 106
Guaranteed residual value of fleet leases	$ 29
Residual value as percentage of original cost	10.20%