10-Q

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

Form 10-Q

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

For the quarterly period ended September 30, 2018

or

o 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: 001-35380

Laredo Petroleum, Inc.

(Exact name of registrant as specified in its charter)

Delaware  (State or other jurisdiction of incorporation or organization) 45-3007926  (I.R.S. Employer Identification No.)

15 W. Sixth Street, Suite 900
Tulsa, Oklahoma	74119
(Address of principal executive offices)	(Zip code)

(918) 513-4570

(Registrant's telephone number, including area code)

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 o

Indicate by check mark whether the registrant has submitted electronically, if any, every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (§ 232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit such files). Yes ý  No o

     Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company or an emerging growth company. See the definitions of "large accelerated filer," "accelerated filer," "smaller reporting company" and "emerging growth company" in Rule 12b-2 of the Exchange Act. (Check one): 

Large accelerated filer ý	Accelerated filer o
Non-accelerated filer o	Smaller reporting company o
Emerging growth company o

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. o

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

Number of shares of registrant's common stock outstanding as of November 1, 2018: 233,882,020

LAREDO PETROLEUM, INC.

TABLE OF CONTENTS

	Page
CAUTIONARY STATEMENT REGARDING FORWARD-LOOKING STATEMENTS	iii
Part I	1
Item 1.    Consolidated Financial Statements (Unaudited)	1
Consolidated balance sheets as of September 30, 2018 and December 31, 2017	1
Consolidated statements of operations for the three and nine months ended September 30, 2018 and 2017	2
Consolidated statement of stockholders' equity for the nine months ended September 30, 2018	3
Consolidated statements of cash flows for the nine months ended September 30, 2018 and 2017	4
Condensed notes to the consolidated financial statements:	5
Note 1—Organization and basis of presentation	5
Note 2—Recently issued or adopted accounting pronouncements	5
Note 3—Acquisitions and divestitures	7
Note 4—Revenue recognition	8
Note 5—Property and equipment	11
Note 6—Debt	12
Note 7—Stockholders' equity and stock-based compensation	14
Note 8—Derivatives	17
Note 9—Fair value measurements	21
Note 10—Net income per common share	24
Note 11—Commitments and contingencies	24
Note 12—Supplemental cash flow information	26
Note 13—Asset retirement obligations	27
Note 14—Income taxes	27
Note 15—Subsidiary guarantors	27
Note 16—Subsequent events	30
Item 2.    Management's Discussion and Analysis of Financial Condition and Results of Operations	31
Item 3.    Quantitative and Qualitative Disclosures About Market Risk	45
Item 4.    Controls and Procedures	47
Part II	48
Item 1.    Legal Proceedings	48
Item 1A.    Risk Factors	48
Item 2.    Purchases of Equity Securities	49
Item 3.    Defaults Upon Senior Securities	49
Item 4.    Mine Safety Disclosures	49
Item 5.    Other Information	49
Item 6.    Exhibits	50
SIGNATURES	51

ii

CAUTIONARY STATEMENT REGARDING FORWARD-LOOKING STATEMENTS

Various statements contained in or incorporated by reference into this Quarterly Report on Form 10-Q (this "Quarterly Report") are forward-looking statements within the meaning of Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended (the "Exchange Act"). These forward-looking statements include statements, projections and estimates concerning our operations, performance, business strategy, oil and natural gas reserves, drilling program capital expenditures, liquidity and capital resources, the timing and success of specific projects, outcomes and effects of litigation, claims and disputes, derivative activities and potential financing. Forward-looking statements are generally accompanied by words such as "estimate," "project," "predict," "believe," "expect," "anticipate," "potential," "could," "may," "will," "foresee," "plan," "goal," "should," "intend," "pursue," "target," "continue," "suggest" or the negative thereof or other variations thereof or other words that convey the uncertainty of future events or outcomes. Forward-looking statements are not guarantees of performance. These statements are based on certain assumptions and analyses made by us in light of our experience and our perception of historical trends, current conditions and expected future developments as well as other factors we believe are appropriate under the circumstances. Among the factors that significantly impact our business and could impact our business in the future are:

• the volatility of oil, natural gas liquids ("NGL") and natural gas prices, including in our area of operation in the Permian Basin;

• our ability to discover, estimate, develop and replace oil, NGL and natural gas reserves;

• the long-term performance of wells that were completed using different technologies;

• changes in domestic and global production, supply and demand for oil, NGL and natural gas;

• the ongoing instability and uncertainty in the United States and international financial and consumer markets that could adversely affect the liquidity available to us and our customers and the demand for commodities, including oil, NGL and natural gas;

• capital requirements for our operations and projects;

• the availability and costs of drilling and production equipment, supplies, labor and oil and natural gas processing and other services;

• the availability and costs of sufficient pipeline and transportation facilities and gathering and processing capacity in the Permian Basin, including the impact on steel costs and supplies following the Administration's imposed 25% global tariffs on certain imported steel mill products;

• our ability to maintain the borrowing capacity under our Fifth Amended and Restated     Senior Secured Credit Facility (as amended, the "Senior Secured Credit Facility") or access other means of obtaining capital and liquidity, especially during periods of sustained low commodity prices;

• restrictions contained in our debt agreements, including our Senior Secured Credit Facility and the indentures governing our senior unsecured notes, as well as debt that could be incurred in the future;

• our ability to recruit and retain the qualified personnel necessary to operate our business;

• our ability to generate sufficient cash to service our indebtedness, fund our capital requirements and generate future profits;

• the impact of share repurchases or our suspension or discontinuation of the share repurchase program at any time;

• the potential negative impact on production of oil, NGL and natural gas from our wells due to tighter spacing of our wells;

• the potential impact on our inventory of future wells from increased spacing and/or decreased well performance;

• our ability to hedge and regulations that affect our ability to hedge;

• revisions to our reserve estimates as a result of changes in commodity prices and other uncertainties;

• impacts to our financial statements as a result of impairment write-downs;

• the potentially insufficient refining capacity in the United States Gulf Coast to refine all of the light sweet crude oil being produced in the United States, which could result in widening price discounts to world crude prices and potential shut-in of production due to lack of sufficient markets;

• risks related to the geographic concentration of our assets;

iii

• changes in the regulatory environment and changes in United States or international legal, political, administrative or economic conditions, including regulations that prohibit or restrict our ability to apply hydraulic fracturing to our oil and natural gas wells and to access and dispose of water used in these operations;

• legislation or regulations that prohibit or restrict our ability to drill new allocation wells;

• our ability to execute our strategies;

• competition in the oil and natural gas industry;

• the adverse outcome and impact of litigation, legal proceedings, investigations and insurance or other claims, including the adverse outcome and impact of pending or protracted litigation;

• drilling and operating risks, including risks related to hydraulic fracturing activities;

• our ability to successfully identify and consummate strategic acquisitions at purchase prices that are accretive to our financial results and to successfully integrate acquired businesses, assets and properties;

• our ability to comply with federal, state and local regulatory requirements; and

• the impact of the new tax laws enacted on December 22, 2017.

These forward-looking statements involve a number of risks and uncertainties that could cause actual results to differ materially from those suggested by the forward-looking statements. Forward-looking statements should, therefore, be considered in light of various factors, including those set forth under "Part I, Item 2. Management's Discussion and Analysis of Financial Condition and Results of Operations" and elsewhere in this Quarterly Report, under "Part I, Item 1A. Risk Factors" and "Part II, Item 7. Management's Discussion and Analysis of Financial Condition and Results of Operations" in our Annual Report on Form 10-K for the fiscal year ended December 31, 2017 (the "2017 Annual Report"), and under "Part II, Item 1A. Risk Factors" in our Quarterly Report on Form 10-Q for the quarterly period ended June 30, 2018 (the "Second Quarter 2018 Quarterly Report") and those set forth from time to time in our other filings with the Securities and Exchange Commission (the "SEC"). These documents are available through our website or through the SEC's Electronic Data Gathering and Analysis Retrieval system at http://www.sec.gov. In light of such risks and uncertainties, we caution you not to place undue reliance on these forward-looking statements. These forward-looking statements speak only as of the date of this Quarterly Report, or if earlier, as of the date they were made. We do not intend to, and disclaim any obligation to, update or revise any forward-looking statements unless required by securities law.

iv

Part I

Item 1.    Consolidated Financial Statements (Unaudited)

Laredo Petroleum, Inc.

Consolidated balance sheets

(in thousands, except share data)

(Unaudited)

	September 30, 2018			December 31, 2017
Assets
Current assets:
Cash and cash equivalents	$	50,407		$	112,159
Accounts receivable, net	117,581			100,645
Derivatives	3,074			6,892
Other current assets	18,465			15,686
Total current assets	189,527			235,382
Property and equipment:
Oil and natural gas properties, full cost method:
Evaluated properties	6,589,327			6,070,940
Unevaluated properties not being depleted	147,690			175,865
Less accumulated depletion and impairment	(4,798,527		)	(4,657,466		)
Oil and natural gas properties, net	1,938,490			1,589,339
Midstream service assets, net	132,415			138,325
Other fixed assets, net	42,264			40,721
Property and equipment, net	2,113,169			1,768,385
Derivatives	—			3,413
Other noncurrent assets, net	17,078			16,109
Total assets	$	2,319,774		$	2,023,289
Liabilities and stockholders' equity
Current liabilities:
Accounts payable and accrued liabilities	$	86,637		$	58,341
Accrued capital expenditures	38,188			82,721
Undistributed revenue and royalties	53,239			37,852
Derivatives	44,060			22,950
Other current liabilities	37,145			75,555
Total current liabilities	259,269			277,419
Long-term debt, net	963,191			791,855
Derivatives	20,945			384
Asset retirement obligations	55,684			53,962
Other noncurrent liabilities	5,573			134,090
Total liabilities	1,304,662			1,257,710
Commitments and contingencies
Stockholders' equity:
Preferred stock, $0.01 par value, 50,000,000 shares authorized and zero issued as of September 30, 2018 and December 31, 2017	—			—
Common stock, $0.01 par value, 450,000,000 shares authorized and 233,957,811 and 242,521,143 issued and outstanding as of September 30, 2018 and December 31, 2017, respectively	2,340			2,425
Additional paid-in capital	2,365,740			2,432,262
Accumulated deficit	(1,352,968		)	(1,669,108		)
Total stockholders' equity	1,015,112			765,579
Total liabilities and stockholders' equity	$	2,319,774		$	2,023,289

The accompanying notes are an integral part of these unaudited consolidated financial statements.

1

Laredo Petroleum, Inc.

Consolidated statements of operations

(in thousands, except per share data)

(Unaudited)

	Three months ended September 30,						Nine months ended September 30,
	2018			2017			2018			2017
Revenues:
Oil sales	$	160,007		$	110,194		$	469,972		$	313,875
NGL sales	50,814			27,700			115,979			68,329
Natural gas sales	15,043			19,664			45,908			55,927
Midstream service revenues	2,255			2,446			6,590			8,148
Sales of purchased oil	51,627			45,814			252,039			135,546
Total revenues	279,746			205,818			890,488			581,825
Costs and expenses:
Lease operating expenses	23,873			19,594			68,466			56,690
Production and ad valorem taxes	14,015			9,558			38,232			26,811
Transportation and marketing expenses	5,036			—			6,570			—
Midstream service expenses	728			1,174			1,824			2,986
Costs of purchased oil	51,210			47,385			252,452			141,661
General and administrative	23,397			25,000			74,956			72,605
Depletion, depreciation and amortization	55,963			41,212			152,278			113,327
Other operating expenses	1,114			1,443			3,341			3,906
Total costs and expenses	175,336			145,366			598,119			417,986
Operating income	104,410			60,452			292,369			163,839
Non-operating income (expense):
Gain (loss) on derivatives, net	(32,245		)	(27,441		)	(69,211		)	38,127
Income from equity method investee (see Note 3.c)	—			2,371			—			7,910
Interest expense	(14,845		)	(23,697		)	(42,787		)	(69,590		)
Other (expense) income	(267		)	333			629			527
Loss on disposal of assets, net	(616		)	(991		)	(4,591		)	(400		)
Non-operating expense, net	(47,973		)	(49,425		)	(115,960		)	(23,426		)
Income before income taxes	56,437			11,027			176,409			140,413
Income tax benefit (expense):
Current	381			—			381			—
Deferred	(1,768		)	—			(1,768		)	—
Total income tax expense:	(1,387		)	—			(1,387		)	—
Net income	$	55,050		$	11,027		$	175,022		$	140,413
Net income per common share:
Basic	$	0.24		$	0.05		$	0.75		$	0.59
Diluted	$	0.24		$	0.05		$	0.75		$	0.57
Weighted-average common shares outstanding:
Basic	230,605			239,306			233,228			239,017
Diluted	231,639			244,887			234,207			244,693

The accompanying notes are an integral part of these unaudited consolidated financial statements.

2

Laredo Petroleum, Inc.

Consolidated statement of stockholders' equity

(in thousands)

(Unaudited)

	Common Stock					Additional paid-in capital			Treasury Stock (at cost)					Accumulated deficit
	Shares		Amount						Shares		Amount						Total
Balance, December 31, 2017	242,521		$	2,425		$	2,432,262		—		$	—		$	(1,669,108	)	$	765,579
Adjustment to the beginning balance of accumulated deficit upon adoption of ASC 606 (see Note 4.a)	—		—			—			—		—			141,118			141,118
Restricted stock awards	3,248		33			(33		)	—		—			—			—
Restricted stock forfeitures	(266	)	(3		)	3			—		—			—			—
Share repurchases	—		—			—			11,049		(97,055		)	—			(97,055		)
Vested stock exchanged for tax withholding	—		—			—			517		(4,411		)	—			(4,411		)
Retirement of treasury stock	(11,566	)	(115		)	(101,351		)	(11,566	)	101,466			—			—
Exercise of stock options	21		—			86			—		—			—			86
Stock-based compensation	—		—			34,773			—		—			—			34,773
Net income	—		—			—			—		—			175,022			175,022
Balance, September 30, 2018	233,958		$	2,340		$	2,365,740		—		$	—		$	(1,352,968	)	$	1,015,112

The accompanying notes are an integral part of this unaudited consolidated financial statement.

3

Laredo Petroleum, Inc.

Consolidated statements of cash flows

(in thousands)

(Unaudited)

	Nine months ended September 30,
	2018			2017
Cash flows from operating activities:
Net income	$	175,022		$	140,413
Adjustments to reconcile net income to net cash provided by operating activities:
Deferred income tax expense	1,768			—
Depletion, depreciation and amortization	152,278			113,327
Non-cash stock-based compensation, net	28,748			26,877
Mark-to-market on derivatives:
(Gain) loss on derivatives, net	69,211			(38,127		)
Settlements (paid) received for matured derivatives, net	(5,943		)	34,791
Settlements received for early terminations of derivatives, net	—			4,234
Change in net present value of derivative deferred premiums	564			199
Premiums paid for derivatives	(14,930		)	(13,542		)
Amortization of debt issuance costs	2,484			3,132
Income from equity method investee (see Note 3.c)	—			(7,910		)
Other, net	9,290			3,445
Increase in accounts receivable	(18,591		)	(2,973		)
Increase in other current assets	(6,479		)	(3,143		)
Decrease (increase) in other noncurrent assets	346			(77		)
Increase in accounts payable and accrued liabilities	28,296			11,575
Increase in undistributed revenues and royalties	15,387			6,384
Decrease in other current liabilities	(28,298		)	(6,264		)
Decrease in other noncurrent liabilities	(625		)	(290		)
Net cash provided by operating activities	408,528			272,051
Cash flows from investing activities:
Acquisitions of oil and natural gas properties	(16,340		)	—
Capital expenditures:
Oil and natural gas properties	(522,470		)	(381,165		)
Midstream service assets	(5,764		)	(11,680		)
Other fixed assets	(5,945		)	(3,604		)
Investment in equity method investee (see Note 3.c)	—			(24,572		)
Proceeds from disposition of equity method investee, net of selling costs (see Note 3.c)	1,655			—
Proceeds from dispositions of capital assets, net of selling costs	12,433			64,128
Net cash used in investing activities	(536,431		)	(356,893		)
Cash flows from financing activities:
Borrowings on Senior Secured Credit Facility	190,000			155,000
Payments on Senior Secured Credit Facility	(20,000		)	(70,000		)
Share repurchases	(97,055		)	—
Vested stock exchanged for tax withholding	(4,411		)	(7,638		)
Proceeds from exercise of stock options	86			358
Payments for debt issuance costs	(2,469		)	(4,732		)
Net cash provided by financing activities	66,151			72,988
Net decrease in cash and cash equivalents	(61,752		)	(11,854		)
Cash and cash equivalents, beginning of period	112,159			32,672
Cash and cash equivalents, end of period	$	50,407		$	20,818

The accompanying notes are an integral part of these unaudited consolidated financial statements.

4

Table of Contents Laredo Petroleum, Inc.

Condensed notes to the consolidated financial statements

(Unaudited)

Note 1—Organization and basis of presentation

a.Organization

Laredo Petroleum, Inc. ("Laredo"), together with its wholly-owned subsidiaries, Laredo Midstream Services, LLC ("LMS") and Garden City Minerals, LLC ("GCM"), is an independent energy company focused on the acquisition, exploration and development of oil and natural gas properties, and midstream and marketing services, primarily in the Permian Basin of West Texas. LMS and GCM (together, the "Guarantors") guarantee all of Laredo's debt instruments. In these notes, the "Company" refers to Laredo, LMS and GCM collectively, unless the context indicates otherwise. All amounts, dollars and percentages presented in these unaudited consolidated financial statements and the related notes are rounded and, therefore, approximate.

b.Basis of presentation

The accompanying unaudited consolidated financial statements were derived from the historical accounting records of the Company and reflect the historical financial position, results of operations and cash flows for the periods described herein. The accompanying unaudited consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States of America ("GAAP"). All material intercompany transactions and account balances have been eliminated in the consolidation of accounts.

The accompanying unaudited consolidated financial statements have not been audited by the Company's independent registered public accounting firm, except that the consolidated balance sheet as of December 31, 2017 is derived from audited consolidated financial statements. In the opinion of management, the accompanying unaudited consolidated financial statements reflect all necessary adjustments to present fairly the Company's financial position as of September 30, 2018, results of operations for the three and nine months ended September 30, 2018 and 2017 and cash flows for the nine months ended September 30, 2018 and 2017.

Certain disclosures have been condensed or omitted from these unaudited consolidated financial statements. Accordingly, these unaudited consolidated financial statements should be read in conjunction with the audited consolidated financial statements and notes thereto included in the 2017 Annual Report.

Significant accounting policies

See Note 2 "Basis of presentation and significant accounting policies" in the 2017 Annual Report for discussion of significant accounting policies.

Use of estimates in the preparation of interim unaudited consolidated financial statements

The preparation of the accompanying unaudited consolidated financial statements in conformity with GAAP requires management to make estimates and assumptions about future events. These estimates and the underlying assumptions affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Although management believes these estimates are reasonable, actual results could differ.

For further information regarding the estimates and assumptions, see Note 2.b "Use of estimates in the preparation of consolidated financial statements" in the 2017 Annual Report. Furthermore, see Note 7.c for a discussion of estimates pertaining to the Company's 2018 performance share awards.

Reclassifications

Certain amounts in the accompanying unaudited consolidated financial statements have been reclassified to conform to the 2018 presentation. These reclassifications had no impact on previously reported total assets, total liabilities, net income, stockholders' equity or total operating, investing or financing cash flows.

Note 2—Recently issued or adopted accounting pronouncements

The Company considers the applicability and impact of all accounting standard updates ("ASU") issued by the Financial Accounting Standards Board ("FASB") to the FASB Accounting Standards Codification ("ASC"). The discussion of the ASUs and a final rule issued by the SEC listed below were determined to be meaningful to the Company's unaudited consolidated financial statements and/or footnotes during the nine months ended September 30, 2018.    

5

Table of Contents Laredo Petroleum, Inc.

Condensed notes to the consolidated financial statements

(Unaudited)

a.    Revenue recognition

On January 1, 2018, the Company adopted ASC 606, Revenue from Contracts with Customers ("ASC 606"), using the modified retrospective approach of adoption. ASC 606 supersedes previous revenue recognition requirements in ASC 605, Revenue Recognition ("ASC 605"), and includes a five-step revenue recognition model to depict the transfer of goods or services to customers in an amount that reflects the consideration to which the Company expects to be entitled in exchange for those goods or services. In addition, the new standard requires significantly expanded disclosures related to the nature, timing, amount and uncertainty of revenue and cash flows arising from contracts with customers. See Note 4 for further discussion of the ASC 606 adoption impact on the Company's unaudited consolidated financial statements and the Company's revenue recognition policies.     

b.    Leases

In February 2016, the FASB issued new guidance in ASC 842, Leases ("ASC 842"), which will supersede the current guidance in ASC 840, Leases ("ASC 840"). The core principle of the new guidance is that a lessee should recognize in the statement of financial position a liability to make lease payments and a right-of-use asset representing its right to use the underlying asset for the lease term for leases currently classified as operating leases. For leases with a term of 12 months or less, a lessee is permitted to make an accounting policy election, by class of underlying asset, not to recognize lease assets and lease liabilities. In January 2018, the FASB issued new guidance in ASC 842 to provide an optional transition practical expedient to not evaluate existing or expired land easements that were not previously accounted for as leases under ASC 840.

In July 2018, the FASB issued new guidance in ASC 842 to provide entities with an additional (and optional) transition method to adopt the new leases standard. Under this new transition method, an entity initially applies the new leases standard at the adoption date and recognizes a cumulative-effect adjustment to the opening balance of retained earnings in the period of adoption. Consequently, an entity's reporting for the comparative periods presented in the financial statements in which it adopts the new leases standard will continue to be in accordance with ASC 840. An entity that elects this transition method must provide the required ASC 840 disclosures for all periods that continue to be reported in accordance with ASC 840.

The amendments in these ASUs are effective for fiscal years beginning after December 15, 2018, including interim periods within those fiscal years. Early adoption is permitted. The primary effect on the Company's consolidated financial statements will be to record assets and obligations for contracts currently recognized as operating leases with a term greater than 12 months and to evaluate operating leases with a term less than or equal to 12 months for accounting policy election. The Company has a team, including third-party consultants, to implement the standard and is implementing the software that will be used to track and account for lease activity. The Company anticipates that the adoption and implementation of ASC 842 will result in a material increase in assets and liabilities on the consolidated balance sheet but will not result in a material impact to the consolidated statement of operations. The estimate of the dollar value impact of the adoption is on-going.

The Company has made certain accounting policy decisions including that it plans to adopt the short-term lease recognition exemption, accounting for certain asset classes at a portfolio level, and establishing a balance sheet recognition capitalization threshold. The transition will utilize the modified retrospective approach to adopting the new standard that will be applied at the beginning of the period adopted (January 1, 2019). The Company will utilize the transition package of expedients to leases that commenced before the effective date. The Company expects for certain lessee asset classes to elect the practical expedient and not separate lease and non-lease components. For these asset classes, the agreements will be accounted for as a single lease component.

c.    Business combinations

In January 2017, the FASB issued new guidance in ASC 805, Business Combinations, to clarify the definition of a business with the objective of adding guidance to assist entities with evaluating whether transactions should be accounted for as acquisitions (or disposals) of assets or businesses. The amendments in this ASU provide a screen to determine when a set of assets and activities is not a business. The screen requires that when substantially all of the fair value of the gross assets acquired (or disposed of) is concentrated in a single identifiable asset or a group of similar identifiable assets, the set is not a business. If the screen is not met, the amendments in this ASU require that to be considered a business, a set must include, at a minimum, an input and a substantive process that, together, significantly contribute to the ability to create an output.

The primary effect of adoption of this ASU is that, depending on the facts and circumstances of each transaction, more transactions could be accounted for as acquisitions of assets. The Company adopted this ASU on January 1, 2018 on a prospective basis, and the adoption did not have an effect on its unaudited consolidated financial statements. See Note 3.a for discussion of the Company's 2018 acquisitions of evaluated and unevaluated oil and natural gas properties, which were accounted for as asset acquisitions under this ASU.

6

Table of Contents Laredo Petroleum, Inc.

Condensed notes to the consolidated financial statements

(Unaudited)

d.    Fair value measurements

In August 2018, the FASB issued new guidance in ASC 820, Fair Value Measurement, to modify disclosure requirements. Of the amendments in the ASU, the below items affected the Company's fair value measurement disclosures in Note 9. Removed disclosure requirements that should be applied retrospectively to all periods presented are: (i) the amount of and reasons for transfers between Level 1 and Level 2 of the fair value hierarchy, (ii) the policy for timing of transfers between levels and (iii) the valuation processes for Level 3 fair value measurements. A modified disclosure requirement that should be applied prospectively is to clarify that the measurement uncertainty disclosure communicates information about the uncertainty in measurement as of the reporting date. A new disclosure requirement that should be applied prospectively is to disclose the range and weighted-average of significant unobservable inputs used to develop Level 3 fair value measurements. The Company has elected to early adopt this guidance upon the issuance of the ASU and has modified its disclosures accordingly in this Quarterly Report.

e.    SEC disclosure update and simplification

In August 2018, the SEC issued Final Rule Release No. 33-10532, Disclosure Update and Simplification, which amends various SEC disclosure requirements that they have determined to be redundant, duplicative, overlapping, outdated or superseded. The amendments also extend the annual disclosure requirement of presenting the changes in stockholders' equity to interim periods. An analysis of changes in stockholders’ equity will now be required for the current and comparative year-to-date interim periods. The Company has incorporated certain aspects of the final rule in this Quarterly Report and will complete the implementation of the final rule in the fourth quarter of 2018.

Note 3—Acquisitions and divestitures

a.2018 Acquisitions of evaluated and unevaluated oil and natural gas properties

During the nine months ended September 30, 2018, through multiple transactions, the Company acquired 895 net acres of additional leasehold interests and working interests in 47 producing horizontal and vertical wells in Glasscock County, Texas for an aggregate purchase price of $16.3 million, net of post-closing adjustments. These acquisitions were accounted for as asset acquisitions.

b.2018 Divestitures of evaluated and unevaluated oil and natural gas properties and midstream service assets

During the nine months ended September 30, 2018, through multiple transactions, the Company completed the sale of 3,070 net acres and working interests in 24 producing vertical and horizontal wells and associated midstream service assets in Glasscock County and Howard County in Texas to third-party buyers for an aggregate sales price of $12.0 million, net of post-closing adjustments. Of this amount, $11.5 million, net of post-closing adjustments, was recorded as adjustments to oil and natural gas properties pursuant to the rules governing full cost accounting. A loss of $1.0 million from the sale of the associated midstream service assets was included in the line item "Loss on disposal of assets, net" in the unaudited consolidated statements of operations. Effective at the closings, the operations and cash flows of these oil and natural gas properties and midstream service assets were eliminated from the ongoing operations of the Company, and the Company has no continuing involvement in the properties. These divestitures did not represent a strategic shift and will not have a major effect on the Company's future operations or financial results.

c.2017 Medallion sale

Medallion Gathering & Processing, LLC, a Texas limited liability company formed on October 12, 2012, which, together with its wholly-owned subsidiaries (collectively, "Medallion"), was established for the purpose of developing midstream solutions and providing midstream infrastructure to bring oil to market from the Midland Basin. Prior to the Medallion Sale (defined below), LMS held 49% of Medallion's ownership units. LMS and the third-party 51% interest-holder agreed that the voting rights of Medallion, the profit and loss sharing and the additional capital contribution requirements would be equal to the ownership unit percentage held. Additionally, Medallion required a super-majority vote of 75% for many key operating and business decisions. The Company determined that Medallion was a variable interest entity ("VIE"). However, LMS was not considered to be the primary beneficiary of the VIE because LMS did not have the power to direct the activities that most significantly affected Medallion's economic performance. As such, prior to the Medallion Sale, Medallion was accounted for under the equity method of accounting. The Company's proportionate share of Medallion's net income is reflected in the unaudited consolidated statements of operations on the "Income from equity method investee" line item.

On October 30, 2017, LMS, together with Medallion Midstream Holdings, LLC, which is owned and controlled by an affiliate of the third-party interest-holder, The Energy & Minerals Group, completed the sale of 100% of the ownership interests

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in Medallion to an affiliate of Global Infrastructure Partners ("GIP") for cash consideration of $1.825 billion (the "Medallion Sale"). LMS' net cash proceeds for its 49% ownership interest in Medallion in 2017 were $829.6 million, before post-closing adjustments and taxes, but after deduction of its proportionate share of fees and other expenses associated with the Medallion Sale. On February 1, 2018, closing adjustments were finalized and LMS received additional net cash of $1.7 million for total net cash proceeds before taxes of $831.3 million. The proceeds were used to pay borrowings on the Senior Secured Credit Facility in full, to redeem the May 2022 Notes (as defined below) and for working capital purposes. The Medallion Sale closed pursuant to the membership interest purchase and sale agreement, which provides for potential post-closing additional cash consideration that is structured based on GIP's realized profit at exit. There can be no assurance as to when and whether the additional consideration will be paid. The Medallion Sale did not represent a strategic shift and will not have a major effect on the Company's future operations or financial results.

LMS has a Transportation Services Agreement (the "TA") with a wholly-owned subsidiary of Medallion under which LMS receives firm transportation of the Company's crude oil production from Reagan County and Glasscock County in Texas to Colorado City, Texas that continues to be in effect after the Medallion Sale. Historically, the Company's crude oil purchasers have fulfilled the commitment by transporting crude oil, purchased from the Company, under the TA, as agent. As a result of the Company's continuing involvement with Medallion by guaranteeing cash flows under the TA, the Company recorded a deferred gain in the amount of its maximum exposure to loss related to such guarantees that would have been amortized over the TA's firm commitment transportation term through 2024 had the Company not adopted new revenue recognition guidance on January 1, 2018. The deferred gain is included in the unaudited consolidated balance sheets in each of the "Other current liabilities" and "Other noncurrent liabilities" line items as of December 31, 2017. See Note 4.a for discussion of the impact to the deferred gain upon the adoption of ASC 606.

d.2017 Divestiture of evaluated and unevaluated oil and natural gas properties

In January 2017, the Company completed the sale of 2,900 net acres and working interests in 16 producing vertical wells in the Midland Basin to a third-party buyer for a purchase price of $59.7 million. After transaction costs reflecting an economic effective date of October 1, 2016, the proceeds were $59.5 million, net of working capital and post-closing adjustments. A significant portion of these proceeds was used to pay down borrowings on the Senior Secured Credit Facility. The purchase price was recorded as an adjustment to oil and natural gas properties pursuant to the rules governing full cost accounting. Effective at closing, the operations and cash flows of these oil and natural gas properties were eliminated from the ongoing operations of the Company, and the Company has no continuing involvement in the properties. This divestiture did not represent a strategic shift and will not have a major effect on the Company's future operations or financial results.

e.Exchange of unevaluated oil and natural gas properties

From time to time, the Company exchanges undeveloped acreage with third parties. The exchanges are recorded at fair value and the difference is accounted for as an adjustment of capitalized costs with no gain or loss recognized pursuant to the rules governing full cost accounting, unless such adjustment would significantly alter the relationship between capitalized costs and proved reserves of oil, NGL and natural gas.

Note 4—Revenue recognition

a.Impact of ASC 606 adoption

Upon adoption of ASC 606 on January 1, 2018, for the three and nine months ended September 30, 2018, the Company reclassified certain firm transportation payments on excess pipeline capacity and other contractual penalties due to customers, historically included in the "Other operating expenses" line item in the unaudited consolidated statements of operations, and netted them with the revenue stream from which they derive as these payments to customers do not relate to the provision of a distinct good or service to the customer. In addition, there was an impact upon adoption related to the treatment of the gain on the Medallion Sale.

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The impact of the adoption of ASC 606 on the results of operations for the periods presented is as follows:

	Three months ended September 30, 2018							Nine months ended September 30, 2018
(in thousands)	As computed under ASC 605		As reported under ASC 606		Increase/(decrease)			As computed under ASC 605		As reported under ASC 606		Increase/(decrease)
Revenues:
Oil sales	$	160,246	$	160,007	$	(239	)	$	472,496	$	469,972	$	(2,524	)
NGL sales	$	50,814	$	50,814	$	—		$	115,979	$	115,979	$	—
Natural gas sales	$	15,043	$	15,043	$	—		$	45,908	$	45,908	$	—
Costs and expenses:
Other operating expenses	$	1,353	$	1,114	$	(239	)	$	5,865	$	3,341	$	(2,524	)
Net income	$	55,050	$	55,050	$	—		$	175,022	$	175,022	$	—

At December 31, 2017, the Medallion Sale was accounted for under the real estate guidance in ASC 360-20, Property, Plant, and Equipment ("ASC 360-20"), and the Company's maximum exposure to loss associated with future commitments under the TA was $141.1 million that was not recorded in the Company's unaudited consolidated balance sheets. Under ASC 360-20, as a result of the Company's continuing involvement with Medallion by guaranteeing cash flows under the TA, the Company recorded a deferred gain in the amount of its maximum exposure to loss related to such guarantees. This deferred gain would have been amortized over the TA's firm commitment transportation term through 2024 had the Company not adopted ASC 606 on January 1, 2018. See Note 3.c for further discussion of the Medallion Sale and the TA.

Upon the adoption of ASC 606, the guidance in ASC 360-20 was superseded by ASC 860, Transfers and Servicing ("ASC 860"). The Medallion Sale is within the scope of ASC 860 and qualifies for sale accounting and recognition of the previously deferred gain because as of the date of the Medallion Sale (i) the Company transferred and legally isolated its full interests in Medallion to GIP, (ii) GIP received the right to pledge or exchange Medallion ownership interests at its full discretion and (iii) the Company did not have effective control over Medallion. Therefore, the deferred gain of $141.1 million was recognized as an adjustment to the beginning balance of accumulated deficit, presented in the unaudited consolidated statements of stockholders' equity, in accordance with the modified retrospective approach of adoption.

b.Revenue recognition

Oil, NGL and natural gas revenues are generally recognized at the point in time that control of the product is transferred to the customer. Midstream service revenues are generated through fees for products and services that need to be delivered by midstream infrastructure, including oil and liquids-rich natural gas gathering services as well as rig fuel, gas lift and water delivery, recycling and takeaway (collectively, "Midstream Services") and are recognized over time as the customer benefits from these services when provided. A more detailed summary of the underlying contracts that give rise to the Company's revenue and method of recognition is included below.

Oil sales and sales of purchased oil

Under its oil sales contracts, the Company sells produced or purchased oil at the delivery point specified in the contract and collects an agreed-upon index price, net of pricing differentials. The delivery point may be at the wellhead, the inlet of the purchaser's pipeline or nominated pipeline or the Company's truck unloading facility. At the delivery point, the purchaser typically takes custody, title and risk of loss of the product and, therefore, control as defined under ASC 606 typically passes at the delivery point. The Company recognizes revenue at the net price received when control transfers to the purchaser.

From time to time, the Company engages in transactions in which it sells oil at the lease and subsequently repurchases the same volume of oil from that customer at a downstream delivery point under a separate agreement ("Repurchase Agreement") for use in the sale to the final customer. The commercial reasoning for such transactions may vary. Where a Repurchase Agreement exists, the Company must evaluate whether the customer obtains control of the oil at the lease and therefore whether it is appropriate to recognize revenue for the lease sale. Where the Company has an obligation or a right to repurchase the oil, the customer does not obtain control of the oil because it is limited in its ability to direct the use of, and obtain substantially all of the remaining benefits from the oil even though it may have physical possession of the oil. If the Company repurchases the oil for less than the original selling price, such a transaction will be classified as a lease. If the Company repurchases the oil for equal to or more than the original selling price, then the transaction represents a financing arrangement unless there is only a short passage of time between the sale and repurchase, in which case any excess amount paid

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represents an expense associated with the sale of oil to the final customer. The Company recognizes such repurchase expense and any transportation expenses incurred for the delivery of the oil to the final customer in the "Transportation and marketing expenses" line item in the accompanying unaudited consolidated statements of operations.

Under certain of its customer contracts, the Company is subject to firm transportation payments on excess pipeline capacity and other contractual penalties if it fails to deliver contractual minimum volumes to its customers. Such amounts are recorded as a reduction to the transaction price as these amounts do not represent payments to the customer for distinct goods or services and instead relate specifically to the failure to perform under the specific customer contract. Such amounts are recorded as a reduction to the transaction price when payment is determined as probable, typically when such a deficiency occurs.

NGL and natural gas sales

Under its natural gas processing contracts, the Company delivers produced natural gas to a midstream processing entity at the wellhead or the inlet of the processing entity's system. The processing entity processes the natural gas, sells the resulting NGL and residue gas to third parties and pays the Company for the NGL and residue gas with deductions that may include gathering, compression, processing and transportation fees. In these scenarios, the Company evaluates whether it is the principal or the agent in the transaction. For existing contracts, the Company has concluded that it is the agent in the ultimate sale to the third party and the midstream processing entity is the principal and that we have transferred control of unprocessed natural gas to the midstream processing entity; therefore, the Company recognizes revenue based on the net amount of the proceeds received from the midstream processing entity who represents the Company's customer. If for future contracts the Company was to conclude that it was the principal with the ultimate third party being the customer, the Company would recognize revenue for those contracts on a gross basis, with gathering, compression, processing, and transportation fees presented as an expense.

Midstream Services

Revenue from oil throughput agreements is recognized based on a rate per barrel for volumes transported. Under the Company's oil throughput agreements, a volumetric deduction is taken from customer oil as a pipeline loss allowance. While these amounts represent non-cash consideration under ASC 606, such deductions are immaterial. Revenue from natural gas throughput agreements is recognized based on a rate per MMbtu for volumes transported. Revenue from water delivery, recycling and takeaway is recognized based on the volumes of water for which the services are provided at the applicable contractual rate.

Imbalances

The Company recognizes revenue for all oil, NGL and natural gas sold to purchasers regardless of whether the sales are proportionate to the Company's ownership interest in the property. Production imbalances are recognized as a liability to the extent an imbalance on a specific property exceeds the Company's share of remaining proved oil, NGL and natural gas reserves. The Company is also subject to natural gas pipeline imbalances, which are recorded as accounts receivable or payable at values consistent with contractual arrangements with the owner of the pipeline. The Company did not have any producer or pipeline imbalance positions as of September 30, 2018 or December 31, 2017.

Significant judgments

The Company engages in various types of transactions in which unaffiliated midstream entities process the Company's liquids-rich natural gas and, in some scenarios, subsequently market resulting NGL and residue gas to third-party customers on the Company's behalf. These types of transactions require judgment to determine whether the Company is the principal or the agent in the contract and, as a result, whether revenues are recorded gross or net. For existing contracts, the Company has determined that it serves as the agent in the sale of products under certain natural gas processing and marketing agreements with unaffiliated midstream entities in accordance with the control model in ASC 606. As a result, the Company presents revenue on a net basis for amounts expected to be received from third-party customers through the marketing process, with expenses and deductions incurred subsequent to control of the product(s) transferring to the unaffiliated midstream entity being netted against revenue.

Transaction price allocated to remaining performance obligations

A significant number of the Company's product sales are short-term in nature with a contract term of one year or less. For those contracts, the Company has utilized the practical expedient in ASC 606-10-50-14 that exempts the Company from disclosure of the transaction price allocated to remaining performance obligations if the performance obligation is part of a contract that has an original expected duration of one year or less.

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For the Company's product sales that have a contract term greater than one year and for its Midstream Services, the Company has utilized the practical expedient in ASC 606-10-50-14A that states that it is not required to disclose the transaction price allocated to remaining performance obligations if the variable consideration is allocated entirely to a wholly unsatisfied performance obligation. Under the Company's product sales contracts, each unit of product generally represents a separate performance obligation; therefore, future volumes are wholly unsatisfied. Under the Midstream Services contracts each unit of service represents a separate performance obligation and therefore performance obligations in respect of future services are wholly unsatisfied.

Contract balances

Under the Company's customer contracts, invoicing occurs once the Company's performance obligations have been satisfied, at which point payment is unconditional. Accordingly, the Company's contracts do not give rise to contract assets or liabilities under ASC 606.

Prior-period performance obligations

For sales of oil, NGL, natural gas and purchased oil, the Company records revenue in the month production is delivered to the purchaser. However, settlement statements and payment may not be received for 30 to 90 days after the date production is delivered and, as a result, the Company is required to estimate the amount of production that was delivered to the purchaser and the price that will be received for the sale of the product. The Company records the differences between estimates and the actual amounts received for product sales once payment is received from the purchaser. Such differences have historically not been significant. The Company uses knowledge of its properties, its properties' historical performance, spot market prices and other factors as the basis for these estimates. For the three and nine months ended September 30, 2018, revenue recognized related to performance obligations satisfied in prior reporting periods was not material.

Note 5—Property and equipment

The following table presents the Company's property and equipment as of the dates presented:

(in thousands)	September 30, 2018			December 31, 2017
Evaluated oil and natural gas properties	$	6,589,327		$	6,070,940
Less accumulated depletion and impairment	(4,798,527		)	(4,657,466		)
Evaluated oil and natural gas properties, net	1,790,800			1,413,474
Unevaluated oil and natural gas properties not being depleted	147,690			175,865
Midstream service assets	171,740			171,427
Less accumulated depreciation and impairment	(39,325		)	(33,102		)
Midstream service assets, net	132,415			138,325
Depreciable other fixed assets	50,420			48,957
Less accumulated depreciation and amortization	(26,415		)	(23,150		)
Depreciable other fixed assets, net	24,005			25,807
Land	18,259			14,914
Total property and equipment, net	$	2,113,169		$	1,768,385

For the three months ended September 30, 2018 and 2017, depletion expense for the Company's evaluated oil and natural gas properties was $7.94 per barrel of oil equivalent ("BOE") sold and $6.80 per BOE sold, respectively. For the nine months ended September 30, 2018 and 2017, depletion expense for the Company's evaluated oil and natural gas properties was $7.67 per BOE sold and $6.57 per BOE sold, respectively.

The Company uses the full cost method of accounting for its oil and natural gas properties. Under this method, all acquisition, exploration and development costs, including certain employee-related costs incurred for the purpose of exploring for or developing oil and natural gas properties, are capitalized and depleted on a composite unit-of-production method based

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on proved oil, NGL and natural gas reserves. Such amounts include the cost of drilling and equipping productive wells, dry hole costs, lease acquisition costs, delay rentals and other costs related to such activities. Costs, including employee-related costs, associated with production and general corporate activities, are expensed in the period incurred. Sales of oil and natural gas properties, whether or not being depleted currently, are accounted for as adjustments of capitalized costs, with no gain or loss recognized, unless such adjustments would significantly alter the relationship between capitalized costs and proved reserves of oil, NGL and natural gas.

The following table presents capitalized employee-related costs for the periods presented:

	Three months ended September 30,				Nine months ended September 30,
(in thousands)	2018		2017		2018		2017
Capitalized employee-related costs	$	5,837	$	6,938	$	19,101	$	17,911

The Company excludes the costs directly associated with the acquisition and evaluation of unevaluated properties from the depletion calculation until it is determined whether or not proved reserves can be assigned to the properties. The Company capitalizes a portion of its interest costs to its unevaluated properties. Capitalized interest becomes a part of the cost of the unevaluated properties and is subject to depletion when proved reserves can be assigned to the associated properties. All items classified as unevaluated properties are assessed on a quarterly basis for possible impairment. The assessment includes consideration of the following factors, among others: intent to drill, remaining lease term, geological and geophysical evaluations, drilling results and activity, the assignment of evaluated reserves and the economic viability of development if proved reserves are assigned. During any period in which these factors indicate an impairment, the cumulative drilling costs incurred to date for such property and all or a portion of the associated leasehold costs are transferred to the full cost pool and are then subject to depletion.

The following table presents costs incurred in the acquisition, exploration and development of oil and natural gas properties, with asset retirement obligations included in evaluated property acquisition costs and development costs, for the periods presented:

	Three months ended September 30,				Nine months ended September 30,
(in thousands)	2018		2017		2018		2017
Property acquisition costs (see Note 3.a):							—
Evaluated	$	—	$	—	$	13,847	$	—
Unevaluated	—		—		2,790		—
Exploration costs	7,502		7,136		18,747		28,337
Development costs	139,748		160,359		467,582		397,255
Total costs incurred	$	147,250	$	167,495	$	502,966	$	425,592

Note 6—Debt

a.March 2023 Notes

On March 18, 2015, the Company completed an offering of $350.0 million in aggregate principal amount of 6 1/4% senior unsecured notes due 2023 (the "March 2023 Notes"). The March 2023 Notes will mature on March 15, 2023 and bear an interest rate of 6 1/4% per annum, payable semi-annually, in cash in arrears on March 15 and September 15 of each year, commencing September 15, 2015. The March 2023 Notes are fully and unconditionally guaranteed on a senior unsecured basis by LMS, GCM and certain of the Company's future restricted subsidiaries, subject to certain automatic customary releases, including the sale, disposition or transfer of all of the capital stock or of all or substantially all of the assets of a subsidiary guarantor to one or more persons that are not the Company or a restricted subsidiary, exercise of legal defeasance or covenant defeasance options or satisfaction and discharge of the applicable indenture, designation of a subsidiary guarantor as a non-guarantor restricted subsidiary or as an unrestricted subsidiary in accordance with the applicable indenture, release from guarantee under the Senior Secured Credit Facility, or liquidation or dissolution (collectively, the "Releases"). The Company may redeem, at its option, all or part of the March 2023 Notes at any time after March 15, 2018, at a price of 104.688% of face value with call premiums declining annually to 100% of face value on March 15, 2021 and thereafter plus accrued and unpaid interest to, but not including, the date of redemption.

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b.January 2022 Notes

On January 23, 2014, the Company completed an offering of $450.0 million in aggregate principal amount of 5 5/8% senior unsecured notes due 2022 (the "January 2022 Notes"). The January 2022 Notes will mature on January 15, 2022 and bear an interest rate of 5 5/8% per annum, payable semi-annually, in cash in arrears on January 15 and July 15 of each year, commencing July 15, 2014. The January 2022 Notes are fully and unconditionally guaranteed on a senior unsecured basis by LMS, GCM and certain of the Company's future restricted subsidiaries, subject to certain Releases. The Company may redeem, at its option, all or part of the January 2022 Notes at any time after January 15, 2018, at a price of 102.813% of face value with call premiums declining annually to 100% of face value on January 15, 2020 and thereafter plus accrued and unpaid interest to, but not including, the date of redemption.

c.May 2022 Notes

On April 27, 2012, the Company completed an offering of $500.0 million in aggregate principal amount of 7 3/8% senior unsecured notes due 2022 (the "May 2022 Notes"). The May 2022 Notes were due to mature on May 1, 2022 and bore an interest rate of 7 3/8% per annum, payable semi-annually, in cash in arrears on May 1 and November 1 of each year, commencing November 1, 2012. The May 2022 Notes were fully and unconditionally guaranteed on a senior unsecured basis by LMS, GCM and certain of the Company's future restricted subsidiaries, subject to certain Releases.

On November 29, 2017 (the "May 2022 Notes Redemption Date"), utilizing a portion of the proceeds from the Medallion Sale, the entire $500.0 million outstanding principal amount of the May 2022 Notes was redeemed at a redemption price of 103.688% of the principal amount of the May 2022 Notes, plus accrued and unpaid interest up to, but not including, the May 2022 Notes Redemption Date. The Company recognized a loss on extinguishment of $23.8 million related to the difference between the redemption price and the net carrying amount of the extinguished May 2022 Notes.

d.Senior Secured Credit Facility

The Senior Secured Credit Facility matures on April 19, 2023, provided that if either the January 2022 Notes or March 2023 Notes have not been refinanced on or prior to the date (as applicable, the "Early Maturity Date") that is 90 days before their respective stated maturity dates, the Senior Secured Credit Facility will mature on such Early Maturity Date. As of September 30, 2018, the Senior Secured Credit Facility had a maximum credit amount of $2.0 billion, a borrowing base of $1.3 billion and an aggregate elected commitment of $1.2 billion, with $170.0 million outstanding and was subject to an interest rate of 3.44%. The Senior Secured Credit Facility contains both financial and non-financial covenants, all of which the Company was in compliance with as of September 30, 2018. Laredo is required to pay a commitment fee on the unused portion of the financial institutions' commitment of 0.375% to 0.5%, based on the ratio of outstanding revolving credit to the aggregate elected commitment under the Senior Secured Credit Facility. Additionally, the Senior Secured Credit Facility provides for the issuance of letters of credit, limited to the lesser of total capacity or $80.0 million. No letters of credit were outstanding as of September 30, 2018 or December 31, 2017. See Note 16 for discussion of items affecting the Senior Secured Credit Facility subsequent to September 30, 2018.

e.Long-term debt, net

The following table summarizes the net presentation of the Company's long-term debt and debt issuance costs on the unaudited consolidated balance sheets as of the dates presented:

	September 30, 2018							December 31, 2017
(in thousands)	Long-term debt		Debt issuance costs, net			Long-term debt, net		Long-term debt		Debt issuance costs, net			Long-term debt, net
January 2022 Notes	$	450,000	$	(3,254	)	$	446,746	$	450,000	$	(3,987	)	$	446,013
March 2023 Notes	350,000		(3,555		)	346,445		350,000		(4,158		)	345,842
Senior Secured Credit Facility(1)	170,000		—			170,000		—		—			—
Total	$	970,000	$	(6,809	)	$	963,191	$	800,000	$	(8,145	)	$	791,855

______________________________________________________________________________

(1) Debt issuance costs, net related to our Senior Secured Credit Facility of $7.4 million and $6.0 million as of September 30, 2018 and December 31, 2017, respectively, are reported in "Other assets, net" on the unaudited consolidated balance sheets.

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Note 7—Stockholders' equity and stock-based compensation

a.Share repurchase program

In February 2018, the Company's board of directors authorized a $200 million share repurchase program commencing in February 2018. The repurchase program expires in February 2020. Share repurchases under the share repurchase program may be made through a variety of methods, which may include open market purchases, privately negotiated transactions and block trades. The timing and actual number of share repurchases will depend upon several factors, including market conditions, business conditions, the trading price of the Company's common stock and the nature of other investment opportunities available to the Company. During the three months ended September 30, 2018, the Company repurchased 1,170,190 shares of common stock at a weighted-average price of $8.41 per common share for a total of $9.9 million under this program. During the nine months ended September 30, 2018, the Company repurchased 11,048,742 shares of common stock at a weighted-average price of $8.78 per common share for a total of $97.1 million under this program. All shares were retired upon repurchase.

b.Treasury stock

Treasury stock is recorded at cost, which includes incremental direct transaction costs, and is retired upon acquisition as a result from share repurchases under the share repurchase program or from the withholding of shares of stock to satisfy employee tax withholding obligations that arise upon the lapse of restrictions on their stock-based awards at the employees' election.

c.Stock-based compensation

The Company's Long-Term Incentive Plan (the "LTIP") provides for the granting of incentive awards in the form of restricted stock awards, stock option awards, performance share awards, performance unit awards and other awards. The LTIP provides for the issuance of up to 24,350,000 shares of Laredo's common stock.

The Company recognizes the fair value of stock-based compensation awards expected to vest over the requisite service period as a charge against earnings, net of amounts capitalized. The Company's stock-based compensation awards are accounted for as equity instruments and are included in the "General and administrative" line item in the unaudited consolidated statements of operations. The Company capitalizes a portion of stock-based compensation for employees who are directly involved in the acquisition, exploration or development of oil and natural gas properties into the full cost pool. Capitalized stock-based compensation is included in the "Evaluated properties" line item on the unaudited consolidated balance sheets.

Restricted stock awards

All service vesting restricted stock awards are treated as issued and outstanding in the accompanying unaudited consolidated financial statements. Per the award agreement terms, if an employee terminates employment prior to the restriction lapse date for reasons other than death or disability, the awarded shares are forfeited and canceled and are no longer considered issued and outstanding. If the employee's termination of employment is by reason of death or disability, all of the holder's restricted stock will automatically vest. Restricted stock awards granted to officers and employees vest in a variety of vesting schedules that mainly include (i) 33%, 33% and 34% per year beginning on the first anniversary of the grant date and (ii) fully on the first anniversary of the grant date. Beginning August 2017, stock awards granted to non-employee directors vest immediately on the grant date. Restricted stock awards granted to non-employee directors prior to August 2017 vested on the first anniversary of the grant date.

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The following table reflects the restricted stock award activity for the nine months ended September 30, 2018:

(in thousands, except for weighted-average grant-date fair value)	Restricted stock awards		Weighted-average grant-date fair value (per award)
Outstanding as of December 31, 2017	3,169		$	12.81
Granted	3,248		$	8.42
Forfeited	(266	)	$	10.35
Vested(1)	(1,851	)	$	12.21
Outstanding as of September 30, 2018	4,300		$	9.90

_____________________________________________________________________________

(1) The total intrinsic value of vested restricted stock awards for the nine months ended September 30, 2018 was $16.1 million.

The Company utilizes the closing stock price on the grant date to determine the fair value of service vesting restricted stock awards. As of September 30, 2018, unrecognized stock-based compensation related to the restricted stock awards expected to vest was $26.5 million. Such cost is expected to be recognized over a weighted-average period of 1.87 years.

Stock option awards

Stock option awards granted under the LTIP vest and become exercisable in four equal installments on each of the four anniversaries of the grant date. As of September 30, 2018, the 2,577,205 outstanding stock option awards have a weighted-average exercise price of $12.66 and a weighted-average remaining contractual term of 6.37 years. There were de minimis exercises, forfeitures and cancellations of stock option awards during the nine months ended September 30, 2018. There were no grants of stock option awards during the nine months ended September 30, 2018.

The Company utilizes the Black-Scholes option pricing model to determine the fair value of stock option awards and recognizes the associated expense on a straight-line basis over the four-year requisite service period of the awards. Determining the fair value of equity-based awards requires judgment, including estimating the expected term that stock option awards will be outstanding prior to exercise and the associated expected volatility. As of September 30, 2018, unrecognized stock-based compensation related to stock option awards expected to vest was $5.0 million. Such cost is expected to be recognized over a weighted-average period of 1.67 years.

Performance share awards

Performance share awards, which the Company has determined are equity awards, are subject to a combination of market, performance and service vesting criteria. For awards with market criteria or portions of awards with market criteria, which include the RTSR Performance Percentage (as defined below), the ATSR Appreciation (as defined below) and the Company's total shareholder return ("TSR"), a Monte Carlo simulation prepared by an independent third party is utilized to determine the grant-date fair value and the associated expense is recognized on a straight-line basis over the three-year requisite service period of the awards. For portions of awards with performance criteria, which is the ROACE Percentage (as defined below), the grant-date fair value is equal to the Company's stock price on the grant date, and for each reporting period, the associated expense fluctuates and is trued-up based on an estimated probability of how many shares will be earned at the end of the three-year performance period. Any shares earned under performance share awards are expected to be issued in the first quarter following the completion of the requisite service period based on the achievement of certain market and performance criteria.    

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Condensed notes to the consolidated financial statements

(Unaudited)

The following table reflects the performance share award activity for the nine months ended September 30, 2018:

(in thousands, except for weighted-average grant-date fair value)	Performance share awards		Weighted-average grant-date fair value (per award)
Outstanding as of December 31, 2017	2,745		$	17.77
Granted(1)	1,389		$	9.22
Forfeited	(149	)	$	14.83
Vested(2)	(454	)	$	16.23
Outstanding as of September 30, 2018	3,531		$	14.55

______________________________________________________________________________

(1) The amount of stock potentially payable at the end of the performance period for the performance share awards granted on February 16, 2018 will be determined based on three criteria: (i) relative three-year total shareholder return comparing the Company's shareholder return to the shareholder return of the peer group specified in the award agreement ("RTSR Performance Percentage"), (ii) absolute three-year total shareholder return ("ATSR Appreciation") and (iii) three-year return on average capital employed ("ROACE Percentage"). The RTSR Performance Percentage, ATSR Appreciation and ROACE Percentage will be used to identify the "RTSR Factor," the "ATSR Factor" and the "ROACE Factor," respectively, which are used to compute the "Performance Multiple" and ultimately to determine the final number of shares associated with each performance share unit granted at the maturity date (with all partial shares rounded, as appropriate). In computing the Performance Multiple, the RTSR Factor is given a 25% weight, the ATSR Factor a 25% weight and the ROACE Factor a 50% weight. The $9.22 per unit grant-date fair value consists of a (i) $10.08 per unit grant-date fair value, determined utilizing a Monte Carlo simulation, for the combined (.25) RTSR Factor and (.25) ATSR Factor and (ii) $8.36 per unit grant-date fair value for the (.50) ROACE Factor determined based on the closing price of the Company's common stock on the New York Stock Exchange on February 16, 2018. These awards have a performance period of January 1, 2018 to December 31, 2020.

(2) The performance share awards granted on February 27, 2015 had a performance period of January 1, 2015 to December 31, 2017 and, as their performance criteria were not satisfied, resulted in a TSR modifier of 0% based on the Company finishing in the 36th percentile of its peer group for relative TSR. As such, the units were not converted into the Company's common stock during the first quarter of 2018.

As of September 30, 2018, unrecognized stock-based compensation related to the performance share awards expected to vest was $18.6 million. Such cost is expected to be recognized over a weighted-average period of 1.72 years.

The assumptions used to estimate the combined fair value for the (.25) RTSR Factor and the (.25) ATSR Factor for the market criteria portion of the performance share awards granted on the date presented are as follows:

	February 16, 2018
Risk-free interest rate(1)	2.34		%
Dividend yield	—		%
Expected volatility(2)	65.49		%
Laredo stock closing price on grant date	$	8.36
Combined fair value per performance share award for the (.25) RTSR Factor and the (.25) ATSR Factor(3)	$	10.08

______________________________________________________________________________

(1) The risk-free interest rate was derived using a term-matched zero-coupon yield derived from the U.S. Treasury constant maturities yield curve on the grant date.

(2) The Company utilized its own historical volatility in order to develop the expected volatility.

(3) The market criteria portion of the performance share award represents 50% of each of the amount of stock potentially payable, if any, and the grant-date fair value of the award.

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Condensed notes to the consolidated financial statements

(Unaudited)

Stock-based compensation expense

The following has been recorded to stock-based compensation expense for the periods presented:

	Three months ended September 30,						Nine months ended September 30,
(in thousands)	2018			2017			2018			2017
Restricted stock award compensation	$	6,001		$	5,422		$	19,332		$	16,856
Stock option award compensation	970			1,159			3,010			3,600
Performance share award compensation	3,689			4,255			12,431			12,063
Total stock-based compensation, gross	10,660			10,836			34,773			32,519
Less amounts capitalized in oil and natural gas properties	(1,927		)	(1,870		)	(6,025		)	(5,642		)
Total stock-based compensation, net	$	8,733		$	8,966		$	28,748		$	26,877

Note 8—Derivatives

Due to the inherent volatility in oil, NGL and natural gas prices, commodity transportation costs and differences in the prices of oil, NGL and natural gas between where the Company produces and where the Company sells such commodities, the Company engages in derivative transactions, such as puts, swaps, collars, basis swaps and, in the past, call spreads to hedge price risk associated with a portion of the Company's anticipated production.By removing a portion of the price volatility associated with future production, the Company expects to mitigate, but not eliminate, the potential effects of variability in cash flows from operations due to fluctuations in commodity prices, commodity transportation costs and differences in commodity prices between where the Company produces and where the Company sells its products.

Each put transaction has an established floor price. The Company pays its counterparty a premium, which can be paid at inception or deferred until settlement, to enter into the put transaction. When the settlement price is below the floor price, the counterparty pays the Company an amount equal to the difference between the settlement price and the floor price multiplied by the hedged contract volume. When the settlement price is at or above the floor price in an individual month in the contract period, the put option expires with no settlement for that particular month, except with regard to the deferred premium, if any.

Each swap transaction has an established fixed price. When the settlement price is below the fixed price, the counterparty pays the Company an amount equal to the difference between the settlement price and the fixed price multiplied by the hedged contract volume. When the settlement price is above the fixed price, the Company pays its counterparty an amount equal to the difference between the settlement price and the fixed price multiplied by the hedged contract volume.

Each collar transaction has an established price floor and ceiling. Depending on the terms, the Company may pay its counterparty a premium, which can be paid at inception or deferred until settlement. When the settlement price is below the price floor established by these collars, the counterparty pays the Company an amount equal to the difference between the settlement price and the price floor multiplied by the hedged contract volume. When the settlement price is above the price ceiling established by these collars, the Company pays its counterparty an amount equal to the difference between the settlement price and the price ceiling multiplied by the hedged contract volume. When the settlement price is between the price floor and price ceiling established by these collars in an individual month in the contract period, the collar expires with no settlement paid by either the Company or the counterparty for that particular month, except with regard to the deferred premium, if any.

Each basis swap transaction has an established fixed basis differential corresponding to two floating index prices. Depending on the difference of the two floating index prices in relationship to the fixed basis differential, the Company either receives an amount from its counterparty, or pays an amount to its counterparty, equal to the difference multiplied by the hedged contract volume.

Each call spread transaction has an established short call price and long call price. Depending on the terms, the counterparty may pay a premium to the Company to enter into the transaction. When the settlement price is above the short call price and less than or equal to the long call price, the Company pays its counterparty an amount equal to the difference between the settlement price and the short call price multiplied by the hedged contract volume. When the settlement price is above the long call price, the Company pays the counterparty an amount equal to the difference between the long call price and the short call price multiplied by the hedged contract volume. When the settlement price is at or below the short call price in an individual month in the contract period, the call option expires with no settlement paid by either the Company or the counterparty for that particular month, except with regard to the deferred premium, if any.

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Condensed notes to the consolidated financial statements

(Unaudited)

Other than the oil basis swaps, the Company's oil derivatives are settled based on the month's average daily NYMEX index price for the first nearby month of the West Texas Intermediate Light Sweet Crude Oil Futures Contract. The oil basis swaps are settled based on either (i) the differential between the Argus Americas Crude West Texas Intermediate ("WTI") index prices for WTI Midland-weighted average for the trade month and WTI Cushing-WTI formula basis for the trade month as compared to the basis swaps' fixed differential price or (ii) the differential between the Argus Americas Crude WTI Houston-weighted average price for the trade month and the WTI Midland-weighted average price for the trade month as compared to the basis swaps' fixed differential price. The Company's NGL derivatives are settled based on the month's average daily OPIS index price for Mont Belvieu Purity Ethane, TET and Non-TET Propane, Non-TET Normal Butane, Non-TET Isobutane and Non-TET Natural Gasoline. Other than the natural gas basis swaps, the Company's natural gas derivatives are settled based on the Inside FERC index price for West Texas WAHA for the calculation period. The natural gas basis swaps are settled based on the differential between the Inside FERC index price for West Texas WAHA for the calculation period and the NYMEX Henry Hub index price for the calculation period as compared to the basis swaps' fixed differential price.

During the nine months ended September 30, 2017, the Company completed a hedge restructuring by early terminating a swap that resulted in a termination amount to the Company of $4.2 million that was settled in full by applying the proceeds to pay the premium on one new collar entered into during the restructuring. The following details the derivative that was terminated:

	Aggregate volumes (Bbl)	Floor price ($/Bbl)		Ceiling price ($/Bbl)		Contract period
Oil swap	1,095,000	$	52.12	$	52.12	January 2018 - December 2018

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Condensed notes to the consolidated financial statements

(Unaudited)

The following table summarizes open positions as of September 30, 2018, and represents, as of such date, derivatives in place through December 2021 on annual production volumes:

	Remaining year 2018			Year 2019			Year 2020		Year 2021
Oil:
Puts:
Hedged volume (Bbl)	1,367,775			8,030,000			366,000		—
Weighted-average floor price ($/Bbl)	$	51.93		$	47.45		$	45.00	$	—
Swaps:
Hedged volume (Bbl)	—			657,000			695,400		—
Weighted-average price ($/Bbl)	$	—		$	53.45		$	52.18	$	—
Collars:
Hedged volume (Bbl)	1,030,400			—			1,134,600		912,500
Weighted-average floor price ($/Bbl)	$	41.43		$	—		$	45.00	$	45.00
Weighted-average ceiling price ($/Bbl)	$	60.00		$	—		$	76.13	$	71.00
Totals:
Total volume hedged with floor price (Bbl)	2,398,175			8,687,000			2,196,000		912,500
Weighted-average floor price ($/Bbl)	$	47.42		$	47.91		$	47.27	$	45.00
Total volume hedged with ceiling price (Bbl)	1,030,400			657,000			1,830,000		912,500
Weighted-average ceiling price ($/Bbl)	$	60.00		$	53.45		$	67.03	$	71.00
Basis Swaps:
WTI Midland to WTI Cushing:
Hedged volume (Bbl)	920,000			552,000			—		—
Weighted-average price ($/Bbl)	$	(0.56	)	$	(4.37	)	$	—	$	—
WTI Houston to WTI Midland:
Hedged volume (Bbl)	920,000			1,810,000			—		—
Weighted-average price ($/Bbl)	$	7.30		$	7.30		$	—	$	—
NGL:
Swaps - Purity Ethane:
Hedged volume (Bbl)	156,400			—			—		—
Weighted-average price ($/Bbl)	$	11.66		$	—		$	—	$	—
Swaps - Non-TET Propane:
Hedged volume (Bbl)	128,800			—			—		—
Weighted-average price ($/Bbl)	$	33.92		$	—		$	—	$	—
Swaps - Non-TET Normal Butane:
Hedged volume (Bbl)	46,000			—			—		—
Weighted-average price ($/Bbl)	$	38.22		$	—		$	—	$	—
Swaps - Non-TET Isobutane:
Hedged volume (Bbl)	18,400			—			—		—
Weighted-average price ($/Bbl)	$	38.33		$	—		$	—	$	—
Swaps - Non-TET Natural Gasoline:
Hedged volume (Bbl)	46,000			—			—		—
Weighted-average price ($/Bbl)	$	57.02		$	—		$	—	$	—
Total NGL volume hedged (Bbl)	395,600			—			—		—
TABLE CONTINUES ON NEXT PAGE

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Condensed notes to the consolidated financial statements

(Unaudited)

	Remaining year 2018			Year 2019			Year 2020			Year 2021
Natural gas:
Puts:
Hedged volume (MMBtu)	2,055,000			—			—			—
Weighted-average floor price ($/MMBtu)	$	2.50		$	—		$	—		$	—
Collars:
Hedged volume (MMBtu)	3,928,400			—			—			—
Weighted-average floor price ($/MMBtu)	$	2.50		$	—		$	—		$	—
Weighted-average ceiling price ($/MMBtu)	$	3.35		$	—		$	—		$	—
Totals:
Total volume hedged with floor price (MMBtu)	5,983,400			—			—			—
Weighted-average floor price ($/MMBtu)	$	2.50		$	—		$	—		$	—
Total volume hedged with ceiling price (MMBtu)	3,928,400			—			—			—
Weighted-average ceiling price ($/MMBtu)	$	3.35		$	—		$	—		$	—
Basis Swaps:
Hedged volume (MMBtu)	2,300,000			20,075,000			25,254,000			—
Weighted-average price ($/MMBtu)	$	(0.62	)	$	(1.05	)	$	(0.76	)	$	—

At each period end, the Company nets the fair value of derivatives by counterparty where the right of offset exists and reports this net basis on the "Derivatives" line items on the unaudited consolidated balance sheets as assets and/or liabilities. See Note 9.a for a summary of the fair value of derivatives on a gross basis. The Company's derivatives were not designated as hedges for accounting purposes. Accordingly, the changes in fair value are recognized in the unaudited consolidated statements of operations in the "Gain (loss) on derivatives, net" line item. Gains and losses on derivatives are included in cash flows from operating activities.

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Condensed notes to the consolidated financial statements

(Unaudited)

Note 9—Fair value measurements

See Note 10 "Fair value measurements" in the 2017 Annual Report for discussion on the Company's accounting policies for fair value measurements.

a.Fair value measurement on a recurring basis

The following tables summarize the Company's derivatives' fair value hierarchy by commodity and current and noncurrent assets and liabilities on a gross basis and the net presentation included in the "Derivatives" line items on the unaudited consolidated balance sheets as of the dates presented:

(in thousands)	Level 1		Level 2			Level 3			Total gross fair value			Amounts offset			Net fair value presented on the unaudited consolidated balance sheets
As of September 30, 2018:
Assets:
Current:
Oil derivatives	$	—	$	10,390		$	—		$	10,390		$	(10,390	)	$	—
NGL derivatives	—		—			—			—			—			—
Natural gas derivatives	—		13,002			—			13,002			(9,309		)	3,693
Oil derivative deferred premiums	—		—			—			—			—			—
Natural gas derivative deferred premiums	—		—			—			—			(619		)	(619		)
Noncurrent:
Oil derivatives	$	—	$	2,056		$	—		$	2,056		$	(2,056	)	$	—
NGL derivatives	—		—			—			—			—			—
Natural gas derivatives	—		474			—			474			(474		)	—
Oil derivative deferred premiums	—		—			—			—			—			—
Natural gas derivative deferred premiums	—		—			—			—			—			—
Liabilities:
Current:
Oil derivatives	$	—	$	(41,692	)	$	—		$	(41,692	)	$	10,390		$	(31,302	)
NGL derivatives	—		(4,807		)	—			(4,807		)	—			(4,807		)
Natural gas derivatives	—		233			—			233			9,309			9,542
Oil derivative deferred premiums	—		—			(17,265		)	(17,265		)	—			(17,265		)
Natural gas derivative deferred premiums	—		—			(847		)	(847		)	619			(228		)
Noncurrent:
Oil derivatives	$	—	$	(17,279	)	$	—		$	(17,279	)	$	2,056		$	(15,223	)
NGL derivatives	—		—			—			—			—			—
Natural gas derivatives	—		(2,468		)	—			(2,468		)	474			(1,994		)
Oil derivative deferred premiums	—		—			(3,728		)	(3,728		)	—			(3,728		)
Natural gas derivative deferred premiums	—		—			—			—			—			—
Net derivative liability positions	$	—	$	(40,091	)	$	(21,840	)	$	(61,931	)	$	—		$	(61,931	)

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Condensed notes to the consolidated financial statements

(Unaudited)

(in thousands)	Level 1		Level 2			Level 3			Total gross fair value			Amounts offset			Net fair value presented on the unaudited consolidated balance sheets
As of December 31, 2017:
Assets:
Current:
Oil derivatives	$	—	$	7,427		$	—		$	7,427		$	(3,721	)	$	3,706
NGL derivatives	—		—			—			—			—			—
Natural gas derivatives	—		10,546			—			10,546			(4,817		)	5,729
Oil derivative deferred premiums	—		—			—			—			(87		)	(87		)
Natural gas derivative deferred premiums	—		—			—			—			(2,456		)	(2,456		)
Noncurrent:
Oil derivatives	$	—	$	11,613		$	—		$	11,613		$	(6,087	)	$	5,526
NGL derivatives	—		—			—			—			—			—
Natural gas derivatives	—		934			—			934			(934		)	—
Oil derivative deferred premiums	—		—			—			—			(2,113		)	(2,113		)
Natural gas derivative deferred premiums	—		—			—			—			—			—
Liabilities:
Current:
Oil derivatives	$	—	$	(12,477	)	$	—		$	(12,477	)	$	3,721		$	(8,756	)
NGL derivatives	—		—			—			—			—			—
Natural gas derivatives	—		—			—			—			4,817			4,817
Oil derivative deferred premiums	—		—			(18,202		)	(18,202		)	87			(18,115		)
Natural gas derivative deferred premiums	—		—			(3,352		)	(3,352		)	2,456			(896		)
Noncurrent:
Oil derivatives	$	—	$	(2,389	)	$	—		$	(2,389	)	$	6,087		$	3,698
NGL derivatives	—		—			—			—			—			—
Natural gas derivatives	—		—			—			—			934			934
Oil derivative deferred premiums	—		—			(7,129		)	(7,129		)	2,113			(5,016		)
Natural gas derivative deferred premiums	—		—			—			—			—			—
Net derivative asset (liability) positions	$	—	$	15,654		$	(28,683	)	$	(13,029	)	$	—		$	(13,029	)

Significant Level 2 inputs associated with the calculation of discounted cash flows used in the fair value mark-to-market analysis of derivatives include each derivative contract's corresponding commodity index price(s), appropriate risk-adjusted discount rates and forward price curve models for substantially similar instruments generated from a compilation of data gathered from third parties.

The Company's deferred premiums associated with its derivative contracts are categorized as Level 3, as the Company utilizes a net present value calculation to determine the valuation. They are considered to be measured on a recurring basis as the derivative contracts they derive from are measured on a recurring basis. As derivative contracts containing deferred premiums are entered into, the Company discounts the associated deferred premium to its net present value at the contract trade date, using the Senior Secured Credit Facility rate at the trade date and then records the change in net present value to interest expense over the period from the trade date until the final settlement date at the end of the contract. After this initial valuation, the net present value of each deferred premium is not adjusted; therefore, significant increases (decreases) in the Senior Secured Credit Facility rate would result in a significantly lower (higher) fair value measurement for each new contract entered into that contained a deferred premium; however, the valuation for the deferred premiums already recorded would remain unaffected. While the Company believes the sources utilized to arrive at the fair value estimates are reliable, different sources or methods could have yielded different fair value estimates. The deferred premiums are included in the "Derivatives" line items on the unaudited consolidated balance sheets, and as of September 30, 2018, their input rates range from 1.91% to 3.32% with a net fair value weighted-average rate of 2.78%.

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Condensed notes to the consolidated financial statements

(Unaudited)

The following table presents payments required for derivative deferred premiums as of September 30, 2018 for the periods presented:

(in thousands)	September 30, 2018
Remaining 2018	$	5,405
2019	15,502
2020	1,295
Total	$	22,202

A summary of the changes in net assets and liabilities classified as Level 3 measurements for the periods presented are as follows:

	Three months ended September 30,						Nine months ended September 30,
(in thousands)	2018			2017			2018			2017
Balance of Level 3 at beginning of period	$	(25,026	)	$	(12,554	)	$	(28,683	)	$	(8,998	)
Change in net present value of derivative deferred premiums(1)	(168		)	(88		)	(564		)	(199		)
Total purchases and settlements of derivative deferred premiums:
Purchases	(2,101		)	(15,996		)	(7,523		)	(22,994		)
Settlements	5,455			1,448			14,930			5,001
Balance of Level 3 at end of period	$	(21,840	)	$	(27,190	)	$	(21,840	)	$	(27,190	)

____________________________________________________________________________

(1) These amounts are included in the "Interest expense" line item in the unaudited consolidated statements of operations.

b.    Fair value measurement on a nonrecurring basis

See Note 10.b "Fair value measurement on a nonrecurring basis" and Note 4.c "2016 acquisitions of evaluated and unevaluated oil and natural gas properties" in the 2017 Annual Report for the Company's accounting policies and assumptions in estimating the fair values of assets acquired and liabilities assumed for acquisitions of evaluated and unevaluated oil and natural gas properties. See Note 3.a for additional discussion of the Company's acquisitions of evaluated and unevaluated oil and natural gas properties for the nine months ended September 30, 2018.

c.Items not accounted for at fair value

The carrying amounts reported in the unaudited consolidated balance sheets for cash and cash equivalents, accounts receivable, accounts payable, accrued capital expenditures, undistributed revenue and royalties and other accrued assets and liabilities approximate their fair values.

The Company has not elected to account for its debt instruments at fair value. The following table presents the carrying amounts and fair values of the Company's debt as of the dates presented:

	September 30, 2018				December 31, 2017
(in thousands)	Long-term debt		Fair value(1)		Long-term debt		Fair value(1)
January 2022 Notes	$	450,000	$	448,875	$	450,000	$	454,500
March 2023 Notes	350,000		352,730		350,000		364,105
Senior Secured Credit Facility	170,000		170,084		—		—
Total	$	970,000	$	971,689	$	800,000	$	818,605

______________________________________________________________________________

(1) The fair values of the debt outstanding on the January 2022 Notes and the March 2023 Notes were determined using the September 30, 2018 and December 31, 2017 quoted market price (Level 1) for each respective instrument. The fair value of the outstanding debt on the Senior Secured Credit Facility as of September 30, 2018 was estimated utilizing a pricing model for similar instruments (Level 2).

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Condensed notes to the consolidated financial statements

(Unaudited)

Note 10—Net income per common share

Basic net income per common share is computed by dividing net income by the weighted-average number of common shares outstanding for the period. Diluted net income per common share reflects the potential dilution of non-vested restricted stock awards, outstanding stock option awards and non-vested performance share awards. The dilutive effects of these awards were calculated utilizing the treasury stock method. See Note 7.c for additional discussion on these awards.

The following table reflects the calculation of basic and diluted weighted-average common shares outstanding and net income per common share for the periods presented:

	Three months ended September 30,				Nine months ended September 30,
(in thousands, except for per share data)	2018		2017		2018		2017
Net income (numerator):
Net income—basic and diluted	$	55,050	$	11,027	$	175,022	$	140,413
Weighted-average common shares outstanding (denominator):
Basic(1)	230,605		239,306		233,228		239,017
Non-vested restricted stock awards(2)	935		650		911		845
Outstanding stock option awards(3)	99		130		68		129
Non-vested performance share awards(4)	—		4,801		—		4,702
Diluted	231,639		244,887		234,207		244,693
Net income per common share:
Basic	$	0.24	$	0.05	$	0.75	$	0.59
Diluted	$	0.24	$	0.05	$	0.75	$	0.57

_____________________________________________________________________________

(1) Weighted-average common shares outstanding used in the computation of basic and diluted net income per common share was computed taking into account share repurchases that occurred during the three and nine months ended September 30, 2018. See Note 7.a for additional discussion of the Company's share repurchase program.

(2) The effect of a significant portion of the non-vested restricted stock awards was excluded from the calculation of diluted net income per common share for the three and nine months ended September 30, 2018. The inclusion of these non-vested restricted stock awards would be anti-dilutive due to the sum of the assumed proceeds exceeding the average stock price during the period.

(3) The effect of the outstanding stock option awards, with the exception of those granted in 2016, was excluded from the calculation of diluted net income per common share for the three and nine months ended September 30, 2018. The inclusion of these stock option awards would be anti-dilutive as their exercise prices were greater than the average stock price during the period.

(4) The effect of the non-vested performance share awards was excluded from the calculation of diluted net income per common share for the three and nine months ended September 30, 2018 as the awards were below the respective agreements' payout thresholds. The effect of the non-vested performance share awards granted in 2018 was calculated utilizing the following criteria defined in Note 7.c: (i) the RTSR Performance Percentage, (ii) the ATSR Appreciation and (iii) the ROACE Percentage from the beginning of the performance period to September 30, 2018 for each of the criteria to identify the RTSR Factor, the ATSR Factor and the ROACE Factor, respectively, which were used to compute the Performance Multiple to determine the number of shares for the dilutive effect. The effects of the non-vested performance share awards granted in 2016 and 2017 were calculated utilizing the Company's TSR from the beginning of each performance share awards' respective performance period to September 30, 2018 in comparison to the TSR of the peers specified in each respective performance share awards' agreement.

Note 11—Commitments and contingencies

a.Litigation

From time to time, the Company is subject to various legal proceedings arising in the ordinary course of business, including proceedings for which the Company may not have insurance coverage. While many of these matters involve inherent uncertainty, except with regard to the specific litigation noted below, as of the date hereof, the Company does not currently

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Condensed notes to the consolidated financial statements

(Unaudited)

believe that any such legal proceedings will have a material adverse effect on the Company's business, financial position, results of operations or liquidity.

On May 3, 2017, Shell Trading (US) Company ("Shell") filed an Original Petition and Request for Disclosure in the District Court of Harris County, Texas, alleging that the crude oil purchase agreement entered into between Shell and Laredo effective October 1, 2016 through June 30, 2020 does not accurately reflect the compensation to be paid to Shell under certain circumstances due to a drafting mistake. Shell seeks reformation of one clause of the crude oil purchase agreement on the grounds of alleged mutual mistake or, in the alternative, unilateral mistake, an award of the amounts Shell alleges it should have been or should be paid under the crude oil purchase agreement, court costs and attorneys' fees. The Company does not believe there was a drafting mistake made in the crude oil purchase agreement, which covered the sale to Shell of 19,000 barrels of crude oil per day of the Company's gross production as well as the purchase by the Company of like-quantity crude oil from Shell. On December 11, 2017, Shell filed its First Amended Petition, in which it asserted nine causes of action, including multiple new claims for breach of contract and fraud.

Effective May 1, 2018, Shell terminated the crude oil purchase agreement and ceased purchasing the Company's crude oil and selling crude oil to the Company under the terms of such agreement. As a result, the Company filed its Second Amended Answer and Original Counterclaim against Shell on June 15, 2018, in which the Company denies all allegations by Shell and seeks damages in excess of $150.0 million resulting from Shell's breach and wrongful termination of the crude oil purchase agreement. Shell filed a Second Amended Petition on June 1, 2018, in which it asserted a new cause of action against the Company for alleged repudiation of Shell's proposed reformed version of the crude oil purchase agreement, a version never signed or agreed to by the Company.

Through April 30, 2018, the date on which Shell wrongfully terminated the crude oil purchase agreement, the Company had accounted for the costs and crude oil price realization as reflected in the terms of the crude oil purchase agreement. The accompanying unaudited consolidated balance sheets do not include any amounts for damage claims or attorneys' fees sought by Shell. As of September 30, 2018, the Company had estimated an aggregate amount of $37.4 million that is the subject of Shell's claims, which is generally based on the contractual amount in dispute under the pricing election that is the subject of Shell's claims applied to the barrels of crude oil purchased and sold through the date on which Shell wrongfully terminated the crude oil purchase agreement. As a result of such termination, the Company's estimate of this unrecorded amount is not anticipated to materially increase in the future. This estimate does not include damages sought by Shell pursuant to its latest repudiation claim asserted in its Second Amended Petition or amounts sought by Shell for recovery of attorneys' fees incurred for the prosecution of its claims. 

The Company is unable to determine a probability of the outcome of this litigation at this time. The Company believes Shell's claims are meritless and the termination by Shell is improper and a breach of the crude oil purchase agreement. The Company therefore intends to vigorously defend itself against Shell's claims and pursue its rights under the terminated crude oil purchase agreement to seek all appropriate damages from Shell.

b.Drilling contracts

The Company has committed to several drilling contracts with third parties to facilitate the Company's drilling plans. Certain of these contracts are for a term of multiple months and contain early termination clauses that require the Company to potentially pay penalties to the third party should the Company cease drilling efforts. These penalties would negatively impact the Company's financial statements upon early contract termination. There were no penalties incurred for early contract termination for either of the nine months ended September 30, 2018 or 2017. The future commitment of $22.9 million as of September 30, 2018 is not recorded in the accompanying unaudited consolidated balance sheets. Management does not currently anticipate the early termination of these contracts in 2018.

c.Firm sale and transportation commitments

The Company has committed to deliver, for sale or transportation, fixed volumes of product under certain contractual arrangements that specify the delivery of a fixed and determinable quantity. If not fulfilled, the Company is subject to firm transportation payments on excess pipeline capacity and other contractual penalties. These commitments are normal and customary for the Company's business. In certain instances, the Company has used spot market purchases to meet its commitments in certain locations or due to favorable pricing. Management anticipates continuing this practice in the future. The Company incurred firm transportation payments on excess pipeline capacity and other contractual penalties of $0.2 million and $0.5 million during the three months ended September 30, 2018 and 2017, respectively, and $2.5 million and $1.1 million during the nine months ended September 30, 2018 and 2017, respectively. For the three and nine months ended September 30, 2018, these firm transportation payments on excess pipeline capacity and other contractual penalties are netted with the respective revenue stream in the unaudited consolidated statements of operations. For the three and nine months ended

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Condensed notes to the consolidated financial statements

(Unaudited)

September 30, 2017, these firm transportation payments on excess pipeline capacity and other penalties are included in the "Other operating expenses" line item in the unaudited consolidated statements of operations. See Note 4.a for additional information regarding the presentation of firm transportation payments on excess pipeline capacity and other contractual penalties. Future commitments of $367.7 million as of September 30, 2018 are not recorded in the accompanying unaudited consolidated balance sheets. For information regarding the TA related to Medallion, see Note 3.c. 

d.    Sand purchase and supply agreement

During the second quarter of 2018, the Company entered into a sand purchase and supply agreement, for a term of one year, whereby it has committed to buy a certain volume of in-basin sand, utilized in the Company's completion activities, for a fixed price. As of September 30, 2018, under the terms of this agreement, the Company is required to purchase a certain percentage of the volume commitment or it would incur a shortfall payment of $5.7 million at the end of the contract period.

e.Federal and state regulations

Oil and natural gas exploration, production and related operations are subject to extensive federal and state laws, rules and regulations. Failure to comply with these laws, rules and regulations can result in substantial penalties. The regulatory burden on the oil and natural gas industry increases the cost of doing business and affects profitability. The Company believes that it is in compliance with currently applicable federal and state regulations related to oil and natural gas exploration and production, and that compliance with the current regulations will not have a material adverse impact on the financial position or results of operations of the Company. These rules and regulations are frequently amended or reinterpreted; therefore, the Company is unable to predict the future cost or impact of complying with these regulations.

f.Environmental

The Company is subject to extensive federal, state and local environmental laws and regulations. These laws, among other things, regulate the discharge of materials into the environment and may require the Company to remove or mitigate the environmental effects of the disposal or release of petroleum or chemical substances at various sites. Environmental expenditures are expensed in the period incurred. Liabilities for expenditures of a non-capital nature are recorded when environmental assessment or remediation is probable and the costs can be reasonably estimated. Such liabilities are generally undiscounted unless the timing of cash payments is fixed and readily determinable. Management believes no materially significant liabilities of this nature existed as of September 30, 2018 or December 31, 2017.

Note 12—Supplemental cash flow information

The following table presents supplemental cash flow information:

	Nine months ended September 30,
(in thousands)	2018			2017
Non-cash investing activities:
(Decrease) increase in accrued capital expenditures	$	(44,533	)	$	39,156
Capitalized stock-based compensation	$	6,025		$	5,642
Capitalized asset retirement costs	$	719		$	670
Other supplemental cash flow information:
Capitalized interest	$	710		$	756

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Table of Contents Laredo Petroleum, Inc.

Condensed notes to the consolidated financial statements

(Unaudited)

Note 13—Asset retirement obligations

See Note 2.m "Asset retirement obligations" in the 2017 Annual Report for discussion on asset retirement obligations.

The following table reconciles the Company's asset retirement obligation liability associated with tangible long-lived assets:

	Nine months ended September 30,
(in thousands)	2018			2017
Liability at beginning of period	$	55,506		$	52,207
Liabilities added due to acquisitions, drilling, midstream service asset construction and other	719			492
Accretion expense	3,341			2,822
Liabilities settled due to plugging and abandonment or sale	(2,246		)	(1,228		)
Revision of estimates	—			178
Liability at end of period	$	57,320		$	54,471

Note 14—Income taxes

The Company is subject to federal and state income taxes and the Texas franchise tax. The Company had federal net operating loss carry-forwards totaling $1.8 billion and state of Oklahoma net operating loss carry-forwards totaling $36.3 million as of September 30, 2018, which begin expiring in 2026 and 2032, respectively. Due to the passing of Public Law No. 115-97, commonly referred to as the Tax Cuts and Jobs Act (the "Tax Act"), $86.4 million of the federal net operating loss carry-forward will not expire but may be limited in future periods. As of September 30, 2018, the Company believes it is more likely than not that a portion of the net operating loss carry-forwards are not fully realizable. The Company continues to consider new evidence, both positive and negative, in determining whether, based on the weight of that evidence, a valuation allowance is needed. Such consideration includes projected future cash flows from its oil, NGL and natural gas reserves (including the timing of those cash flows), the reversal of deferred tax liabilities recorded as of September 30, 2018, the Company's ability to capitalize intangible drilling costs, rather than expensing these costs in order to prevent an operating loss carry-forward from expiring unused and future projections of Oklahoma sourced income. As of September 30, 2018, a full valuation allowance of $298.8 million has been recorded against the Company's federal and state of Oklahoma net deferred tax assets. As of September 30, 2018, a Texas deferred tax liability of $1.8 million has been recorded along with the corresponding deferred income tax expense. Additionally, a current tax refund of $0.4 million of Texas franchise tax is expected as a result of differences in estimated versus actual taxable income from the gain on the Medallion Sale and is recorded as a current income tax benefit.

Note 15—Subsidiary guarantors

The Guarantors have fully and unconditionally guaranteed the January 2022 Notes, the March 2023 Notes and the Senior Secured Credit Facility (and had guaranteed the May 2022 Notes until the May 2022 Notes Redemption Date), subject to the Releases. In accordance with practices accepted by the SEC, Laredo has prepared condensed consolidating financial statements to quantify the balance sheets, results of operations and cash flows of such subsidiaries as subsidiary guarantors. The following unaudited condensed consolidating (i) balance sheets as of September 30, 2018 and December 31, 2017, (ii) statements of operations for the three and nine months ended September 30, 2018 and 2017 and (iii) statements of cash flows for the nine months ended September 30, 2018 and 2017 present financial information for Laredo on a stand-alone basis (carrying any investment in subsidiaries under the equity method), financial information for the subsidiary guarantors on a stand-alone basis (carrying any investment in subsidiaries under the equity method), and the consolidation and elimination entries necessary to arrive at the information for the Company on a condensed consolidated basis. Income taxes for LMS and for GCM are recorded on Laredo's balance sheets, statements of operations and statements of cash flows as they are disregarded entities for income tax purposes. Laredo and the Guarantors are not restricted from making intercompany distributions to each other.

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Condensed notes to the consolidated financial statements

(Unaudited)

Condensed consolidating balance sheet

September 30, 2018

(in thousands)	Laredo		Subsidiary Guarantors		Intercompany eliminations			Consolidated company
Accounts receivable, net	$	103,109	$	14,472	$	—		$	117,581
Other current assets	70,413		1,533		—			71,946
Oil and natural gas properties, net	1,951,518		9,146		(22,174		)	1,938,490
Midstream service assets, net	—		132,415		—			132,415
Other fixed assets, net	42,071		193		—			42,264
Investment in subsidiaries	130,439		—		(130,439		)	—
Other noncurrent assets, net	13,113		3,965		—			17,078
Total assets	$	2,310,663	$	161,724	$	(152,613	)	$	2,319,774
Accounts payable and accrued liabilities	$	68,037	$	18,600	$	—		$	86,637
Other current liabilities	162,893		9,739		—			172,632
Long-term debt, net	963,191		—		—			963,191
Other noncurrent liabilities	79,256		2,946		—			82,202
Stockholders' equity	1,037,286		130,439		(152,613		)	1,015,112
Total liabilities and stockholders' equity	$	2,310,663	$	161,724	$	(152,613	)	$	2,319,774

Condensed consolidating balance sheet

December 31, 2017

(in thousands)	Laredo			Subsidiary Guarantors			Intercompany eliminations			Consolidated company
Accounts receivable, net	$	79,413		$	21,232		$	—		$	100,645
Other current assets	132,219			2,518			—			134,737
Oil and natural gas properties, net	1,596,834			9,220			(16,715		)	1,589,339
Midstream service assets, net	—			138,325			—			138,325
Other fixed assets, net	40,344			377			—			40,721
Investment in subsidiaries	(7,566		)	—			7,566			—
Other noncurrent assets, net	15,526			3,996			—			19,522
Total assets	$	1,856,770		$	175,668		$	(9,149	)	$	2,023,289
Accounts payable and accrued liabilities	$	34,550		$	23,791		$	—		$	58,341
Other current liabilities	193,104			25,974			—			219,078
Long-term debt, net	791,855			—			—			791,855
Other noncurrent liabilities	54,967			133,469			—			188,436
Stockholders' equity	782,294			(7,566		)	(9,149		)	765,579
Total liabilities and stockholders' equity	$	1,856,770		$	175,668		$	(9,149	)	$	2,023,289

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Condensed notes to the consolidated financial statements

(Unaudited)

Condensed consolidating statement of operations

For the three months ended September 30, 2018

(in thousands)	Laredo			Subsidiary Guarantors			Intercompany eliminations			Consolidated company
Total revenues	$	225,970		$	73,463		$	(19,687	)	$	279,746
Total costs and expenses	123,942			69,146			(17,752		)	175,336
Operating income	102,028			4,317			(1,935		)	104,410
Interest expense	(14,845		)	—			—			(14,845		)
Other non-operating expense	(28,811		)	(26		)	(4,291		)	(33,128		)
Income before income taxes	58,372			4,291			(6,226		)	56,437
Income tax expense	(1,387		)	—			—			(1,387		)
Net income	$	56,985		$	4,291		$	(6,226	)	$	55,050

Condensed consolidating statement of operations

For the three months ended September 30, 2017

(in thousands)	Laredo			Subsidiary Guarantors		Intercompany eliminations			Consolidated company
Total revenues	$	157,902		$	63,686	$	(15,770	)	$	205,818
Total costs and expenses	97,686			62,245		(14,565		)	145,366
Operating income	60,216			1,441		(1,205		)	60,452
Interest expense	(23,697		)	—		—			(23,697		)
Other non-operating income (expense)	(24,287		)	2,290		(3,731		)	(25,728		)
Income before income taxes	12,232			3,731		(4,936		)	11,027
Income tax	—			—		—			—
Net income	$	12,232		$	3,731	$	(4,936	)	$	11,027

Condensed consolidating statement of operations

For the nine months ended September 30, 2018

(in thousands)	Laredo			Subsidiary Guarantors			Intercompany eliminations			Consolidated company
Total revenues	$	632,419		$	312,784		$	(54,715	)	$	890,488
Total costs and expenses	345,232			302,143			(49,256		)	598,119
Operating income	287,187			10,641			(5,459		)	292,369
Interest expense	(42,787		)	—			—			(42,787		)
Other non-operating expense	(62,532		)	(1,307		)	(9,334		)	(73,173		)
Income before income taxes	181,868			9,334			(14,793		)	176,409
Income tax expense	(1,387		)	—			—			(1,387		)
Net income	$	180,481		$	9,334		$	(14,793	)	$	175,022

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Condensed notes to the consolidated financial statements

(Unaudited)

Condensed consolidating statement of operations

For the nine months ended September 30, 2017

(in thousands)	Laredo			Subsidiary Guarantors		Intercompany eliminations			Consolidated company
Total revenues	$	439,269		$	190,926	$	(48,370	)	$	581,825
Total costs and expenses	276,855			183,310		(42,179		)	417,986
Operating income	162,414			7,616		(6,191		)	163,839
Interest expense	(69,590		)	—		—			(69,590		)
Other non-operating income	53,780			7,622		(15,238		)	46,164
Income before income taxes	146,604			15,238		(21,429		)	140,413
Income tax	—			—		—			—
Net income	$	146,604		$	15,238	$	(21,429	)	$	140,413

Condensed consolidating statement of cash flows

For the nine months ended September 30, 2018

(in thousands)	Laredo			Subsidiary Guarantors			Intercompany eliminations			Consolidated company
Net cash provided by operating activities	$	402,065		$	15,797		$	(9,334	)	$	408,528
Change in investment between affiliates	3,115			(12,449		)	9,334			—
Capital expenditures and other	(533,083		)	(3,348		)	—			(536,431		)
Net cash provided by financing activities	66,151			—			—			66,151
Net decrease in cash and cash equivalents	(61,752		)	—			—			(61,752		)
Cash and cash equivalents, beginning of period	112,158			1			—			112,159
Cash and cash equivalents, end of period	$	50,406		$	1		$	—		$	50,407

Condensed consolidating statement of cash flows

For the nine months ended September 30, 2017

(in thousands)	Laredo			Subsidiary Guarantors			Intercompany eliminations			Consolidated company
Net cash provided by operating activities	$	273,309		$	13,980		$	(15,238	)	$	272,051
Change in investment between affiliates	(36,890		)	21,652			15,238			—
Capital expenditures and other	(321,261		)	(35,632		)	—			(356,893		)
Net cash provided by financing activities	72,988			—			—			72,988
Net decrease in cash and cash equivalents	(11,854		)	—			—			(11,854		)
Cash and cash equivalents, beginning of period	32,671			1			—			32,672
Cash and cash equivalents, end of period	$	20,817		$	1		$	—		$	20,818

Note 16—Subsequent events

On October 15, 2018, the Company borrowed $20.0 million on the Senior Secured Credit Facility. As a result, the outstanding balance under the Senior Secured Credit Facility was $190.0 million as of November 5, 2018.

On October 23, 2018, pursuant to the regular semi-annual redetermination, the lenders reaffirmed the borrowing base of $1.3 billion under the Senior Secured Credit Facility. The Company's aggregate elected commitment of $1.2 billion remains unchanged.

As of November 5, 2018, the Company had one letter of credit outstanding of $14.7 million under the Senior Secured Credit Facility.

30

Item 2.    Management's Discussion and Analysis of Financial Condition and Results of Operations

The following discussion and analysis of our financial condition and results of operations should be read in conjunction with our unaudited consolidated financial statements and condensed notes thereto included elsewhere in this Quarterly Report as well as our audited consolidated financial statements and notes thereto included in our 2017 Annual Report. The following discussion contains "forward-looking statements" that reflect our future plans, estimates, beliefs and expected performance. We caution that assumptions, expectations, projections, intentions or beliefs about future events may, and often do, vary from actual results and the differences can be material. Please see "Cautionary Statement Regarding Forward-Looking Statements." Except for purposes of the unaudited consolidated financial statements and condensed notes thereto included elsewhere in this Quarterly Report, references in this Quarterly Report to "Laredo,""we,""us,""our" or similar terms refer to Laredo, LMS and GCM collectively, unless the context otherwise indicates or requires. All amounts, dollars and percentages presented in this Quarterly Report are rounded and therefore approximate.

Executive overview

We are an independent energy company focused on the acquisition, exploration and development of oil and natural gas properties, and midstream and marketing services, primarily in the Permian Basin of West Texas. Since our inception, we have grown primarily through our drilling program coupled with select strategic acquisitions and joint ventures.

Our financial and operating performance for the three months ended September 30, 2018 included the following:

• Oil, NGL and natural gas sales of $225.9 million, compared to $157.6 million for the three months ended September 30, 2017;

• Average daily sales volumes of 71,382 BOE/D, compared to 60,011 BOE/D for the three months ended September 30, 2017;

• Net income of $55.1 million, compared to $11.0 million for the three months ended September 30, 2017; and

• Adjusted EBITDA (a non-GAAP financial measure) of $160.6 million, compared to $130.9 million for the three months ended September 30, 2017. See page 42 for a discussion and reconciliation of Adjusted EBITDA.

Our financial and operating performance for the nine months ended September 30, 2018 included the following:

• Oil, NGL and natural gas sales of $631.9 million, compared to $438.1 million for the nine months ended September 30, 2017;

• Average daily sales volumes of 67,330 BOE/D, compared to 57,044 BOE/D for the nine months ended September 30, 2017;

• Net income of $175.0 million, compared to $140.4 million for the nine months ended September 30, 2017; and

• Adjusted EBITDA (a non-GAAP financial measure) of $456.5 million, compared to $352.6 million for the nine months ended September 30, 2017. See page 42 for a discussion and reconciliation of Adjusted EBITDA.

Core area of operations

The oil and liquids-rich Permian Basin is characterized by multiple target horizons, long-lived reserves, high drilling success rates and high initial production rates. As of September 30, 2018, we had assembled 120,465 net acres in the Permian Basin.

Pricing and reserves

Our results of operations are heavily influenced by oil, NGL and natural gas prices. Oil, NGL and natural gas price fluctuations are caused by changes in global and regional supply and demand, market uncertainty, economic conditions, transportation constraints and a variety of additional factors. Historically, commodity prices have experienced significant fluctuations, and additional changes in commodity prices may affect the economic viability of, and our ability to fund, our drilling projects, as well as the economic valuation and economic recovery of oil, NGL and natural gas reserves.

During the second and third quarters of 2018, the Midland market crude oil price experienced an increased discount to WTI-Cushing prices, with the August 31, 2018 discount for prompt month delivery at $18 per Bbl of oil, primarily due to limited pipeline capacity constraining transportation of crude oil out of the Permian Basin to major marketing hubs including, but not limited to, Cushing, Oklahoma and the United States Gulf Coast. As of October 31, 2018, this Midland discount for prompt month delivery was $6 per Bbl of oil. This pipeline constraint is expected to continue to affect the Midland market oil price until further transportation capacity becomes operational or until basin-wide crude oil production decreases from its current levels. We will continue to pursue avenues to attempt to protect our oil value from basin differentials by securing transportation capacity, enabling us to sell oil in multiple markets, and entering into basis-swap derivatives.

31

We have entered into a number of derivative contracts that have enabled us to offset a portion of the changes in our cash flow caused by fluctuations in price and basis differentials for our sales of oil, NGL and natural gas, as discussed in "Item 3. Quantitative and Qualitative Disclosures About Market Risk."

The unweighted arithmetic average first-day-of-the-month prices for each month within the 12-month period prior to the end of the reporting period before pricing differentials, adjusted for quality, transportation fees, geographical differentials, marketing bonuses or deductions and other factors affecting the price received when control passes to the purchaser/customer (the "Realized Prices"), utilized to value our reserves as of September 30, 2018 and September 30, 2017, were $58.83 per Bbl for oil, $21.15 per Bbl for NGL and $1.62 per Mcf for natural gas, and $44.59 per Bbl for oil, $16.55 per Bbl for NGL and $2.16 per Mcf for natural gas, respectively. The Realized Prices used to estimate proved reserves do not include derivative transactions. See "—Costs and expenses - Transportation and marketing expenses" for costs incurred prior to control passing to the final customer. The unamortized cost of our evaluated oil and natural gas properties did not exceed the full cost ceiling amount as of September 30, 2018 or September 30, 2017. See Note 5 to our unaudited consolidated financial statements included elsewhere in this Quarterly Report for discussion of our full cost method of accounting.

Horizontal drilling in unconventional wells using enhanced completions techniques, including but not limited to hydraulic fracturing, is a relatively new process and, as such, forecasting the long-term production of such wells is inherently uncertain and subject to varying interpretations. As we receive and process geological and production data from these wells over time, we analyze such data to confirm whether previous assumptions regarding original forecasted production and reserves continue to appear accurate or require modification. While all production forecasts have elements of uncertainty over the life of the related wells, we are seeing indications that the oil portion of such reserves may be less than originally anticipated.

Initial production results, production decline rates, well density, completion design and operating method are examples of the numerous uncertainties and variables inherent in the estimation of proved reserves in future periods. The quantity of proved reserves is one of the many variables inherent in the calculation of depletion. Negative revisions in the estimated quantities of proved reserves have the effect of increasing the rates of depletion on the affected properties, which decreases earnings and increases losses through higher depletion expense. We have experienced increased depletion per BOE sold for each of the last three quarters of 2018.

The table below presents our depletion per BOE sold for the periods presented:

	For the quarters ended
	September 30, 2018		June 30, 2018		March 31, 2018
Depletion per BOE sold	$	7.94	$	7.68	$	7.34

Sources of our revenue

Our revenues are derived from the sale of produced oil, NGL and natural gas, the sale of purchased oil and providing midstream services to third parties, all within the continental United States and do not include the effects of derivatives. Our oil, NGL and natural gas revenues may vary significantly from period to period as a result of changes in volumes of production, pricing differentials and/or changes in commodity prices. Our sales of purchased oil revenue may vary due to changes in oil prices, pricing differentials and the amount of volumes purchased. Our midstream service revenues may vary due to oil throughput fees and the level of services provided to third parties for (i) oil and natural gas gathering and transportation systems and related facilities, (ii) gas lift, rig fuel and centralized compression infrastructure and (iii) water storage, recycling and transportation infrastructure. The following table presents our sources of revenue as a percentage of total revenues:

	Three months ended September 30,				Nine months ended September 30,
	2018		2017		2018		2017
Oil sales	57	%	54	%	53	%	54	%
NGL sales	18	%	13	%	13	%	12	%
Natural gas sales	5	%	10	%	5	%	10	%
Midstream service revenues	1	%	1	%	1	%	1	%
Sales of purchased oil	19	%	22	%	28	%	23	%
Total	100	%	100	%	100	%	100	%

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Results of operations

For the three and nine months ended September 30, 2018 as compared to the three and nine months ended September 30, 2017

Oil, NGL and natural gas sales volumes, revenues and prices

The following table presents information regarding produced oil, NGL and natural gas sales volumes, revenues and average sales prices:

	Three months ended September 30,						Nine months ended September 30,
	2018			2017			2018			2017
Sales volumes:
Oil (MBbl)	2,651			2,425			7,604			7,027
NGL (MBbl)	1,987			1,491			5,328			4,187
Natural gas (MMcf)	11,577			9,630			32,697			26,154
Oil equivalents (MBOE)(1)(2)	6,567			5,521			18,381			15,573
Average daily sales volumes (BOE/D)(2)	71,382			60,011			67,330			57,044
% Oil(2)	40		%	44		%	41		%	45		%
Sales revenues (in thousands):
Oil	$	160,007		$	110,194		$	469,972		$	313,875
NGL	50,814			27,700			115,979			68,329
Natural gas	15,043			19,664			45,908			55,927
Total oil, NGL and natural gas sales revenues	$	225,864		$	157,558		$	631,859		$	438,131
Average sales Realized Prices(2):
Oil, without derivatives ($/Bbl)(3)	$	60.36		$	45.44		$	61.80		$	44.67
NGL, without derivatives ($/Bbl)(3)	$	25.57		$	18.58		$	21.77		$	16.32
Natural gas, without derivatives ($/Mcf)(3)	$	1.30		$	2.04		$	1.40		$	2.14
Average price, without derivatives ($/BOE)(3)	$	34.39		$	28.54		$	34.38		$	28.13
Oil, with derivatives ($/Bbl)(4)	$	55.41		$	50.72		$	57.50		$	49.08
NGL, with derivatives ($/Bbl)(4)	$	23.99		$	17.98		$	20.95		$	15.90
Natural gas, with derivatives ($/Mcf)(4)	$	1.79		$	2.10		$	1.79		$	2.17
Average price, with derivatives ($/BOE)(4)	$	32.78		$	30.80		$	33.04		$	30.07

_____________________________________________________________________________

(1) BOE is calculated using a conversion rate of six Mcf per one Bbl.

(2) The numbers presented are based on actual results and are not calculated using the rounded numbers presented in the table above.

(3) Realized oil, NGL and natural gas prices are the actual prices received when control passes to the purchaser/customer adjusted for quality, transportation fees, geographical differentials, marketing bonuses or deductions and other factors affecting the price received at the wellhead. See "—Costs and expenses - Transportation and marketing expenses" for costs incurred prior to control passing to the final customer.

(4) Price reflects the after-effects of our derivative transactions on our average Realized Prices. Our calculation of such after-effects includes settlements of matured derivatives during the respective periods in accordance with GAAP and an adjustment to reflect premiums incurred previously or upon settlement that are attributable to derivatives that settled during the respective periods.

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The following table presents settlements (paid) received for matured derivatives and premiums paid previously or upon settlement attributable to derivatives that matured during the periods utilized in our calculation of the average sales Realized Prices with derivatives presented above:        

	Three months ended September 30,						Nine months ended September 30,
(in thousands)	2018			2017			2018			2017
Settlements (paid) received for matured derivatives:
Oil	$	(7,279	)	$	13,182		$	(16,623	)	$	33,399
NGL	(3,154		)	(897		)	(4,348		)	(1,761		)
Natural gas	6,545			1,350			15,028			3,153
Total	$	(3,888	)	$	13,635		$	(5,943	)	$	34,791
Premiums paid previously or upon settlement attributable to derivatives that matured during the respective period:
Oil	$	(5,849	)	$	(362	)	$	(16,090	)	$	(2,383	)
Natural gas	(850		)	(769		)	(2,536		)	(2,301		)
Total	$	(6,699	)	$	(1,131	)	$	(18,626	)	$	(4,684	)

Changes in average sales Realized Prices without derivatives and sales volumes caused the following changes to our oil, NGL and natural gas revenues between the three months ended September 30, 2018 and 2017:

(in thousands)	Oil		NGL		Natural gas			Total net effect of change
2017 Revenues	$	110,194	$	27,700	$	19,664		$	157,558
Effect of changes in average sales Realized Prices	39,565		13,895		(8,596		)	44,864
Effect of changes in sales volumes	10,248		9,219		3,975			23,442
2018 Revenues	$	160,007	$	50,814	$	15,043		$	225,864

Changes in average sales Realized Prices without derivatives and sales volumes caused the following changes to our oil, NGL and natural gas revenues between the nine months ended September 30, 2018 and 2017:

(in thousands)	Oil		NGL		Natural gas			Total net effect of change
2017 Revenues	$	313,875	$	68,329	$	55,927		$	438,131
Effect of changes in average sales Realized Prices	130,314		29,039		(24,009		)	135,344
Effect of changes in sales volumes	25,783		18,611		13,990			58,384
2018 Revenues	$	469,972	$	115,979	$	45,908		$	631,859

Oil sales revenue. Our oil sales revenue is a function of oil production volumes sold and average oil sales Realized Prices received for those volumes. The increase in oil sales revenue of $49.8 million, or 45%, for the three months ended September 30, 2018 as compared to the same period in 2017 is due to a 33% increase in average oil sales Realized Prices and a 9% increase in oil sales volumes.

The increase in oil sales revenue of $156.1 million, or 50%, for the nine months ended September 30, 2018 as compared to the same period in 2017 is due to a 38% increase in average oil sales Realized Prices and an 8% increase in oil sales volumes.

NGL sales revenue. Our NGL sales revenue is a function of NGL production volumes sold and average NGL sales Realized Prices received for those volumes. The increase in NGL sales revenue of $23.1 million, or 83%, for the three months ended September 30, 2018 as compared to the same period in 2017 is due to a 38% increase in average NGL sales Realized Prices and a 33% increase in NGL sales volumes.

The increase in NGL sales revenue of $47.7 million, or 70%, for the nine months ended September 30, 2018 as compared to the same period in 2017 is due to a 33% increase in average NGL sales Realized Prices and a 27% increase in NGL sales volumes.

Natural gas sales revenue. Our natural gas sales revenue is a function of natural gas production volumes sold and average natural gas sales Realized Prices received for those volumes. The decrease in natural gas sales revenue of $4.6 million, or 23%, for the three months ended September 30, 2018 as compared to the same period in 2017 is due to a 36% decrease in average natural gas sales Realized Prices, partially offset by a 20% increase in natural gas sales volumes.

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The decrease in natural gas revenue of $10.0 million, or 18%, for the nine months ended September 30, 2018 as compared to the same period in 2017 is due to a 35% decrease in average natural gas sales Realized Prices, partially offset by a 25% increase in natural gas sales volumes.

The following table presents midstream service and sales of purchased oil revenues:

	Three months ended September 30,				Nine months ended September 30,
(in thousands)	2018		2017		2018		2017
Midstream service revenues	$	2,255	$	2,446	$	6,590	$	8,148
Sales of purchased oil	$	51,627	$	45,814	$	252,039	$	135,546

Midstream service revenues. Our midstream service revenues decreased by $0.2 million, or 8%, and by $1.6 million, or 19%, for the three and nine months ended September 30, 2018, respectively, as compared to the same periods in 2017. These revenues are a function of the services provided through our (i) oil and natural gas gathering and transportation systems and related facilities, (ii) gas lift, rig fuel and centralized compression infrastructure and (iii) water storage, recycling and transportation infrastructure. The decrease in midstream service revenues for the nine months ended September 30, 2018, compared to the same period in 2017, is mainly due to decreased oil throughput revenue.

Sales of purchased oil. We enter into purchase transactions with third parties and separate sale transactions with purchasers/customers to diversify a portion of the sales of our oil production to the Gulf Coast market. These transactions are presented on a gross basis as we act as the principal in the transaction by assuming control of the commodities purchased and the responsibility to deliver the commodities sold. Revenue is recognized when control transfers to the purchaser/customer at the delivery point based on the price received. The transportation costs associated with these transactions are presented as a component of costs of purchased oil. These revenues are a function of the volume and price of purchased oil sold to customers and are offset by the increased costs of purchased oil.

Sales of purchased oil increased by $5.8 million, or 13%, and by $116.5 million, or 86%, for the three and nine months ended September 30, 2018, respectively, as compared to the same periods in 2017. The increase in the sale of purchased oil for the three months ended September 30, 2018, as compared to the same period in 2017, is mainly due to increased price, partially offset by a 27% decrease in volume of purchased oil sold. During the nine months ended September 30, 2018, our volume of purchased oil sold to customers increased by 33%, as compared to the same period in 2017, due to an increase in the volume of purchased oil sold during the second quarter of 2018.

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Costs and expenses

The following table presents information regarding costs and expenses and average costs per BOE sold:

	Three months ended September 30,				Nine months ended September 30,
(in thousands except for per BOE sold data)	2018		2017		2018		2017
Costs and expenses:
Lease operating expenses	$	23,873	$	19,594	$	68,466	$	56,690
Production and ad valorem taxes	14,015		9,558		38,232		26,811
Transportation and marketing expenses	5,036		—		6,570		—
Midstream service expenses	728		1,174		1,824		2,986
Costs of purchased oil	51,210		47,385		252,452		141,661
General and administrative:
Cash	14,664		16,034		46,208		45,728
Non-cash stock-based compensation, net	8,733		8,966		28,748		26,877
Depletion, depreciation and amortization	55,963		41,212		152,278		113,327
Other operating expenses	1,114		1,443		3,341		3,906
Total costs and expenses	$	175,336	$	145,366	$	598,119	$	417,986
Average costs per BOE sold(1):
Lease operating expenses	$	3.63	$	3.55	$	3.72	$	3.64
Production and ad valorem taxes	2.13		1.73		2.08		1.72
Transportation and marketing expenses	0.77		—		0.36		—
Midstream service expenses	0.11		0.21		0.10		0.19
General and administrative:
Cash	2.23		2.90		2.51		2.94
Non-cash stock-based compensation, net	1.33		1.62		1.56		1.73
Depletion, depreciation and amortization	8.52		7.46		8.28		7.28
Total costs and expenses	$	18.72	$	17.47	$	18.61	$	17.50

_____________________________________________________________________________

(1) Average costs per BOE sold are based on actual amounts and are not calculated using the rounded numbers presented in the table above.

Lease operating expenses. Lease operating expenses, which include workover expenses, increased by $4.3 million, or 22%, and by $11.8 million, or 21%, for the three and nine months ended September 30, 2018, respectively, compared to the same periods in 2017. On a per BOE sold basis, lease operating expenses remained relatively flat for the three and nine months ended September 30, 2018 compared to the same periods in 2017. We continue to focus on economic efficiencies associated with the usage and procurement of products and services related to lease operating expenses.

Production and ad valorem taxes. Production and ad valorem taxes increased by $4.5 million, or 47%, and by $11.4 million, or 43%, for the three and nine months ended September 30, 2018, respectively, compared to the same periods in 2017. The increases are mainly due to increases in production taxes, which are based on and fluctuate in proportion to our oil, NGL and natural gas sales revenue. Ad valorem taxes are based on and fluctuate in proportion to the taxable value assessed by the various counties where our oil and natural gas properties are located.

Transportation and marketing expenses. Transportation and marketing expenses were $5.0 million and $6.6 million for the three and nine months ended September 30, 2018, respectively. There were no comparable amounts recorded during the same periods in 2017. Transportation and marketing expenses are the costs incurred to transport a portion of our production to the favorable Gulf Coast market.

Midstream service expenses. Midstream service expenses decreased by $0.4 million, or 38%, and by $1.2 million, or 39%, for the three and nine months ended September 30, 2018, respectively, compared to the same periods in 2017. Midstream service expenses primarily represent costs incurred to operate and maintain our (i) oil and natural gas gathering and transportation systems and related facilities, (ii) centralized oil storage tanks, (iii) natural gas lift, rig fuel and centralized compression infrastructure and (iv) water storage, recycling and transportation facilities.

Costs of purchased oil. Costs of purchased oil increased by $3.8 million, or 8%, and by $110.8 million, or 78%, for the three and nine months ended September 30, 2018, respectively, compared to the same periods in 2017. These costs include

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the cost of obtaining oil from third parties and, in some cases, transporting such oil utilized in our marketing activities. Our costs of purchased oil may vary due to changes in oil prices, pricing differentials, the amount of volumes purchased and fluctuations in transportation fees. The quarter-over-quarter increase is mainly due to increases in oil prices, partially offset by a decrease in transportation fees. During the nine months ended September 30, 2018, our volume of purchased oil increased by 33%, as compared to the same period in 2017, due to an increase in the volume of purchased oil during the second quarter of 2018.

General and administrative ("G&A"). G&A decreased by $1.6 million, or 6%, and increased by $2.4 million, or 3%, for the three and nine months ended September 30, 2018, respectively, compared to the same periods in 2017. The quarter-over-quarter decrease is mainly due to decreases in employee-related costs. The year-over-year increase is mainly due to increases in stock-based compensation and professional fees. Stock-based compensation, net, decreased by $0.2 million, or 3%, and increased by $1.9 million, or 7%, for the three and nine months ended September 30, 2018, respectively, compared to the same periods in 2017. A significant portion of the year-to-date increase is due to the immediate vesting of stock awards granted to our non-employee directors in May 2018 compared to a one-year cliff-vest in May 2017.

See Note 7.c to our unaudited consolidated financial statements included elsewhere in this Quarterly Report for information regarding our stock-based compensation.

Depletion, depreciation and amortization ("DD&A"). The following table presents the components of our DD&A expense:

	Three months ended September 30,				Nine months ended September 30,
(in thousands)	2018		2017		2018		2017
Depletion of evaluated oil and natural gas properties	$	52,169	$	37,538	$	140,971	$	102,290
Depreciation of midstream service assets	2,456		2,241		7,321		6,569
Depreciation and amortization of other fixed assets	1,338		1,433		3,986		4,468
Total DD&A	$	55,963	$	41,212	$	152,278	$	113,327

DD&A increased by $14.8 million, or 36%, and by $39.0 million, or 34%, for the three and nine months ended September 30, 2018, respectively, compared to the same periods in 2017. The increases are mainly due to increases in the depletion base and production volumes sold. Based on indications from our historical depletion trends, current well results and forecasted production we expect DD&A to continue to increase. For further discussion on our depletion per BOE see "—Pricing and reserves."

Non-operating income (expense). The following table presents the components of non-operating income (expense):

	Three months ended September 30,						Nine months ended September 30,
(in thousands)	2018			2017			2018			2017
Gain (loss) on derivatives, net	$	(32,245	)	$	(27,441	)	$	(69,211	)	$	38,127
Income from equity method investee (see Note 3.c)	—			2,371			—			7,910
Interest expense	(14,845		)	(23,697		)	(42,787		)	(69,590		)
Other (expense) income	(267		)	333			629			527
Loss on disposal of assets, net	(616		)	(991		)	(4,591		)	(400		)
Non-operating expense, net	$	(47,973	)	$	(49,425	)	$	(115,960	)	$	(23,426	)

Gain (loss) on derivatives, net. The following table presents the changes in the components of gain (loss) on derivatives, net:

(in thousands)	Three months ended September 30, 2018 compared to 2017			Nine months ended September 30, 2018 compared to 2017
Increase (decrease) in fair value of derivatives outstanding	$	12,719		$	(62,370	)
Decrease in settlements received for matured derivatives, net	(17,523		)	(40,734		)
Decrease in settlements received for early terminations of derivatives, net	—			(4,234		)
Total change in gain (loss) on derivatives, net	$	(4,804	)	$	(107,338	)

The change in fair value of derivatives outstanding is the result of new, early-terminated and expiring contracts and the changing relationship between our outstanding contract prices and the future market prices in the forward curves, which we use to calculate the fair value of our derivatives. In general, if no new contracts are entered into or terminated, we experience gains during periods of decreasing market prices and losses during periods of increasing market prices. Settlements received or paid

37

for matured derivatives are based on the settlement prices of our matured derivatives compared to the prices specified in the derivative contracts.

During the nine months ended September 30, 2017, we completed a hedge restructuring by early terminating a swap that resulted in a termination amount to us of $4.2 million that was settled in full by applying the proceeds to pay the premium on one new collar entered into during the restructuring.

See Notes 8 and 9.a to our unaudited consolidated financial statements included elsewhere in this Quarterly Report and "Item 3. Quantitative and Qualitative Disclosures About Market Risk" for additional information regarding our derivatives.

Income from equity method investee. Prior to the Medallion Sale on October 30, 2017, we owned 49% of the ownership interests of Medallion. As such, we previously accounted for this investment under the equity method of accounting with our proportionate share of Medallion's net income reflected in the unaudited consolidated statements of operations as "Income from equity method investee." For further discussion of the Medallion Sale, see Note 3.c to our unaudited consolidated financial statements included elsewhere in this Quarterly Report.

Interest expense. Interest expense decreased by $8.9 million, or 37%, and by $26.8 million, or 39%, for the three and nine months ended September 30, 2018, respectively, compared to the same periods in 2017, mainly due to the early redemption of the May 2022 Notes on November 29, 2017.

Loss on disposal of assets, net. Loss on disposal of assets, net, decreased by $0.4 million and increased by $4.2 million for the three and nine months ended September 30, 2018, respectively, compared to the same periods in 2017. From time to time, we dispose of materials and supplies inventory, midstream service assets and other fixed assets. The associated gain or loss recorded during the period fluctuates depending upon the volume of the assets disposed, their associated net book value and, in the case of a disposal by sale, the sale price.

Income tax. Since September 30, 2015, we have recorded a full valuation allowance against our net deferred tax assets. As of December 31, 2017, we have recorded a full valuation allowance against our federal, state of Oklahoma and state of Texas net deferred tax assets. As of September 30, 2018, we have recorded a full valuation allowance against our federal and state of Oklahoma net deferred tax assets and have recorded a Texas deferred tax liability of $1.8 million. Additionally, a current tax refund of $0.4 million of Texas franchise tax is expected as a result of differences in estimated versus actual taxable income from the gain on the Medallion Sale. As such, our effective tax rates were 2% and 1% for the three and nine months ended September 30, 2018, respectively, and 0% for each of the three and nine months ended September 30, 2017. For further discussion of our valuation allowance, see Note 14 to our unaudited consolidated financial statements included elsewhere in this Quarterly Report.

Liquidity and capital resources

Historically, our primary sources of liquidity have been cash flows from operations, proceeds from equity offerings, proceeds from senior unsecured note offerings, borrowings under our Senior Secured Credit Facility and proceeds from the Medallion Sale and other asset dispositions. We believe cash flows from operations and availability under our Senior Secured Credit Facility provide sufficient liquidity to manage our cash needs and contractual obligations and to fund our expected capital expenditures. Our primary operational uses of capital have been for the acquisition, exploration and development of oil and natural gas properties, infrastructure development and investments in Medallion until its sale on October 30, 2017.

A significant portion of our capital expenditures can be adjusted and managed by us. We continually monitor the capital markets and our capital structure and consider which financing alternatives, including equity and debt capital resources, joint ventures and asset sales, are available to meet our future planned or accelerated capital expenditures. We may make changes to our capital structure from time to time, with the goal of maintaining financial flexibility, preserving or improving liquidity and/or achieving cost efficiency. Such financing alternatives, including capital market transactions and debt and equity repurchases, if any, will depend on prevailing market conditions, our liquidity requirements, contractual restrictions and other factors. The amounts involved may be material. See Notes 3, 6.c and 7.a to our unaudited consolidated financial statements included elsewhere in this Quarterly Report and "Part II. Item 2. Purchases of Equity Securities" below for additional discussion of our acquisitions and divestitures of oil and natural gas properties and midstream service assets, the Medallion Sale, the redemption of our May 2022 Notes and our $200.0 million share repurchase program authorized by our board of directors and commenced in February 2018. We also continuously look for other opportunities to maximize shareholder value.

Due to the inherent volatility in oil, NGL and natural gas prices, commodity transportation costs and differences in the prices of oil, NGL and natural gas between wherewe produce and where we sellsuch commodities,we engagein derivative transactions, such as puts, swaps, collars, basis swaps and, in the past, call spreads to hedge price risk associated with a portion ofouranticipated production.By removing a portion of the price volatility associated with future production, we expect to

38

mitigate, but not eliminate, the potential effects of variability in cash flows from operations due to fluctuations in commodity prices, commodity transportation costs and differences in commodity prices between where we produce and where we sell our products. See "Part I. Item 3. Quantitative and Qualitative Disclosures About Market Risk" below. See Note 8 to our unaudited consolidated financial statements included elsewhere in this Quarterly Report for information regarding our derivative settlement indices and our open hedge positions as of September 30, 2018.

We continually seek to maintain a financial profile that provides operational flexibility. As of September 30, 2018, we had cash and cash equivalents of $50.4 million and undrawn capacity under the Senior Secured Credit Facility of $1.03 billion, resulting in total liquidity of $1.08 billion. As of November 5, 2018, we had cash and cash equivalents of $46.0 million and available capacity under the Senior Secured Credit Facility of $1.00 billion, resulting in total available liquidity of $1.04 billion. We believe that our operating cash flow and the aforementioned liquidity sources provide us with the financial resources to manage our business needs, to implement our planned capital expenditure budget and, at our discretion, to fund our share repurchase program.

Cash flows

The following table presents our cash flows:

	Nine months ended September 30,
(in thousands)	2018			2017
Net cash provided by operating activities	$	408,528		$	272,051
Net cash used in investing activities	(536,431		)	(356,893		)
Net cash provided by financing activities	66,151			72,988
Net decrease in cash and cash equivalents	$	(61,752	)	$	(11,854	)

Cash flows from operating activities

Net cash provided by operating activities increased by $136.5 million, or 50%, for the nine months ended September 30, 2018, compared to the same period in 2017, mainly due to increased revenues due to the increase in average realized sales prices for oil and NGL and increased sales volumes of all production streams with additional details included at "—Results of operations consolidated"; however, other notable cash changes included (i) a decrease of $46.4 million in settlements received for matured derivatives and early terminations of derivatives, net of premiums paid and (ii) a decrease of $15.3 million from net working capital changes.

Our operating cash flows are sensitive to a number of variables, the most significant of which are the volatility of oil, NGL and natural gas prices, mitigated to the extent of our derivatives' exposure, and sales volume levels. Regional and worldwide economic activity, weather, infrastructure, transportation capacity to reach markets, costs of operations, legislation and regulations and other variable factors significantly impact the prices of these commodities. These factors are not within our control and are difficult to predict. For additional information on risks related to our business, see "Part I. Item 1A. Risk Factors" in our 2017 Annual Report.

Cash flows from investing activities

Net cash used in investing activities increased by $179.5 million, or 50%, for the nine months ended September 30, 2018, compared to the same period in 2017, and is mainly attributable to (i) an increase in capital expenditures on oil and natural gas properties and (ii) a decrease in proceeds from dispositions of capital assets. See Note 3 to our unaudited consolidated financial statements included elsewhere in this Quarterly Report for discussion of our acquisitions and divestitures of oil and natural gas properties and midstream service assets and the Medallion Sale.

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The following table presents the components of our cash flows from investing activities:

	Nine months ended September 30,
(in thousands)	2018			2017
Acquisitions of oil and natural gas properties	$	(16,340	)	$	—
Capital expenditures:
Oil and natural gas properties	(522,470		)	(381,165		)
Midstream service assets	(5,764		)	(11,680		)
Other fixed assets	(5,945		)	(3,604		)
Investment in equity method investee (see Note 3.c)	—			(24,572		)
Proceeds from disposition of equity method investee, net of selling costs (see Note 3.c)	1,655			—
Proceeds from dispositions of capital assets, net of selling costs	12,433			64,128
Net cash used in investing activities	$	(536,431	)	$	(356,893	)

Capital expenditure budget

Due to the increase in operational efficiencies and expected completions, during the third quarter of 2018 we increased the drilling and completion portion of our capital budget to $545.0 million, an increase of $45.0 million from the previously announced level. Other capital expenditures remained unchanged at $85.0 million, bringing our total annual budgeted capital expenditures, excluding non-budgeted acquisitions, to $630.0 million. We are monitoring the impact of the steel import tariffs recently imposed by the Administration; however, we currently do not believe there will be an impact to us in 2018. We do not have a specific acquisition budget since the timing and size of acquisitions cannot be accurately forecasted.

The amount, timing and allocation of capital expenditures are largely discretionary and within management's control. If oil, NGL and natural gas prices decline below our acceptable levels, or costs increase above our acceptable levels, we may choose to defer a portion of our budgeted capital expenditures until later periods to achieve the desired balance between sources and uses of liquidity and prioritize capital projects that we believe have the highest expected returns and potential to generate near-term cash flow. Subject to financing alternatives, we may also increase our capital expenditures significantly to take advantage of opportunities we consider to be attractive. We consistently monitor and may adjust our projected capital expenditures in response to success or lack of success in drilling activities, changes in prices, availability of financing and joint venture opportunities, drilling and acquisition costs, industry conditions, the timing of regulatory approvals, the availability of rigs and supplies, changes in service costs, contractual obligations, internally generated cash flow and other factors both within and outside our control.

Cash flows from financing activities

Net cash provided by financing activities decreased by $6.8 million, or 9%, for the nine months ended September 30, 2018, compared to the same period in 2017, and is mainly attributable to share repurchases under our share repurchase program that commenced in February 2018 and was partially offset by decreased payments on our Senior Secured Credit Facility and increased borrowings on our Senior Secured Credit Facility. Through September 30, 2018, we have repurchased 11,048,742 shares of common stock at a weighted-average price of $8.78 per common share for a total of $97.1 million under this program and, upon repurchase, the shares were retired. As of September 30, 2018, we had authorization remaining to repurchase until its expiration in February 2020, approximately $102.9 million of common stock.

The following table presents the components of our cash flows from financing activities:

	Nine months ended September 30,
(in thousands)	2018			2017
Borrowings on Senior Secured Credit Facility	$	190,000		$	155,000
Payments on Senior Secured Credit Facility	(20,000		)	(70,000		)
Share repurchases	(97,055		)	—
Vested stock exchanged for tax withholding	(4,411		)	(7,638		)
Proceeds from exercise of stock options	86			358
Payments for debt issuance costs	(2,469		)	(4,732		)
Net cash provided by financing activities	$	66,151		$	72,988

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Debt

As of September 30, 2018, we were a party only to our Senior Secured Credit Facility and the indentures governing our senior unsecured notes.

Senior Secured Credit Facility. As of September 30, 2018, our Senior Secured Credit Facility had a maximum credit amount of $2.0 billion, a borrowing base of $1.3 billion and an aggregate elected commitment of $1.2 billion, with $170.0 million outstanding. No letters of credit were outstanding as of September 30, 2018.

The borrowing base under our Senior Secured Credit Facility is subject to a semi-annual redetermination based on the lenders' evaluation of our oil, NGL and natural gas reserves. The lenders have the right to call for an interim redetermination of the borrowing base once between any two redetermination dates and in other specified circumstances. The Senior Secured Credit Facility matures on April 19, 2023, provided that if either the January 2022 Notes or March 2023 Notes have not been refinanced on or prior to the applicable Early Maturity Date, the Senior Secured Credit Facility will mature on such Early Maturity Date.

On October 23, 2018, pursuant to the regular semi-annual redetermination, the lenders reaffirmed the borrowing base of $1.3 billion under our Senior Secured Credit Facility. Our aggregate elected commitment of $1.2 billion remains unchanged.

Principal amounts borrowed under our Senior Secured Credit Facility are payable on the final maturity date with such borrowings bearing interest that is payable, at our election, either on the last day of each fiscal quarter at an "Adjusted Base Rate" as defined in our Senior Secured Credit Facility, or at the end of one-, two-, three-, six- or, to the extent available, 12-month interest periods (and in the case of six- and 12-month interest periods, every three months prior to the end of such interest period) at a "LIBOR Rate" as defined in our Senior Secured Credit Facility, in each case, plus an applicable margin, which ranges from 0.25% to 1.25% for "Adjusted Base Rate Loans" as defined in our Senior Secured Credit Facility, and from 1.25% to 2.25% for "Eurodollar Loans" as defined in our Senior Secured Credit Facility, based on the ratio of the outstanding revolving credit on our Senior Secured Credit Facility to the borrowing base. We are also required to pay a commitment fee, which ranges from 0.375% to 0.50%, based on the ratio of the outstanding revolving credit on our Senior Secured Credit Facility to the aggregate elected commitment.

Our Senior Secured Credit Facility is secured by a first-priority lien on certain of our assets, including oil and natural gas properties constituting at least 85% of the present value of our proved reserves owned now or in the future. Our Senior Secured Credit Facility contains both financial and non-financial covenants. We were in compliance with these covenants as of September 30, 2018 and December 31, 2017. See Notes 6.d and 16 to our unaudited consolidated financial statements included elsewhere in this Quarterly Report for discussion of items affecting the Senior Secured Credit Facility subsequent to September 30, 2018.

Senior unsecured notes. The following table presents principal amounts and applicable interest rates for our outstanding senior unsecured notes as of September 30, 2018:

(in millions, except for interest rates)	Principal		Interest rate
January 2022 Notes	$	450.0	5.625	%
March 2023 Notes	350.0		6.250	%
Total senior unsecured notes	$	800.0

See Notes 6.a and 6.b to our unaudited consolidated financial statements included elsewhere in this Quarterly Report for further discussion of the March 2023 Notes and January 2022 Notes, respectively.

Obligations and commitments

As of September 30, 2018, our contractual obligations included our January 2022 Notes, March 2023 Notes, Senior Secured Credit Facility, drilling contracts, firm sale and transportation commitments, sand purchase and supply agreement, derivative deferred premiums, asset retirement obligations and office and equipment operating leases. From December 31, 2017 to September 30, 2018, the material changes in our contractual obligations included (i) an increase of $170.0 million in outstanding borrowings on our Senior Secured Credit Facility, (ii) a decrease of $47.2 million on our interest obligations for our senior unsecured notes as semi-annual interest payments were made in January, March, July and September of 2018, (iii) an increase of $19.4 million for drilling contract commitments due to the timing of when contracts were entered into and completed (on contracts other than those on a well-by-well basis), (iv) an increase of $10.7 million for firm sale and transportation commitments due to the timing of when contracts were entered into, completed and terminated, (v) a decrease of $7.1 million in derivative deferred premiums mainly due to premiums paid for derivatives, partially offset by new derivative

41

deferred premiums entered into and (vi) an increase of $5.7 million due to a new in-basin sand purchase and supply agreement entered into during second-quarter 2018, partially offset by purchases made during third-quarter 2018.

See Notes 6, 8, 9, 11, 13 and 16 to our unaudited consolidated financial statements included elsewhere in this Quarterly Report for additional discussion of our contractual obligations.

Non-GAAP financial measure

The non-GAAP financial measure of Adjusted EBITDA, as defined by us, may not be comparable to similarly titled measures used by other companies. Therefore, this non-GAAP measure should be considered in conjunction with net income or loss and other performance measures prepared in accordance with GAAP, such as operating income or loss or cash flow from operating activities. Adjusted EBITDA should not be considered in isolation or as a substitute for GAAP measures, such as net income or loss, operating income or loss or any other GAAP measure of liquidity or financial performance.

Adjusted EBITDA is a non-GAAP financial measure that we define as net income or loss plus adjustments for income tax expense or benefit, depletion, depreciation and amortization, non-cash stock-based compensation, net, accretion expense, mark-to-market on derivatives, premiums paid for derivatives, interest expense, gains or losses on disposal of assets, income or loss from equity method investee, proportionate Adjusted EBITDA of equity method investee and other non-recurring income and expenses. Adjusted EBITDA provides no information regarding a company's capital structure, borrowings, interest costs, capital expenditures, working capital movement or tax position. Adjusted EBITDA does not represent funds available for discretionary use because those funds are required for debt service, capital expenditures, working capital, income taxes, franchise taxes and other commitments and obligations. However, our management believes Adjusted EBITDA is useful to an investor in evaluating our operating performance because this measure:

• is widely used by investors in the oil and natural gas industry to measure a company's operating performance without regard to items excluded from the calculation of such term, which can vary substantially from company to company depending upon accounting methods, the book value of assets, capital structure and the method by which assets were acquired, among other factors;

• helps investors to more meaningfully evaluate and compare the results of our operations from period to period by removing the effect of our capital structure from our operating structure; and

• is used by our management for various purposes, including as a measure of operating performance, in presentations to our board of directors and as a basis for strategic planning and forecasting.

There are significant limitations to the use of Adjusted EBITDA as a measure of performance, including the inability to analyze the effect of certain recurring and non-recurring items that materially affect our net income or loss, the lack of comparability of results of operations to different companies and the different methods of calculating Adjusted EBITDA reported by different companies. Our measurements of Adjusted EBITDA for financial reporting as compared to compliance under our debt agreements differ.

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The following table presents a reconciliation of net income (GAAP) to Adjusted EBITDA (non-GAAP):

	Three months ended September 30,						Nine months ended September 30,
(in thousands)	2018			2017			2018			2017
Net income	$	55,050		$	11,027		$	175,022		$	140,413
Plus:
Income tax expense	1,387			—			1,387			—
Depletion, depreciation and amortization	55,963			41,212			152,278			113,327
Non-cash stock-based compensation, net	8,733			8,966			28,748			26,877
Accretion expense	1,114			951			3,341			2,822
Mark-to-market on derivatives:
(Gain) loss on derivatives, net	32,245			27,441			69,211			(38,127		)
Settlements (paid) received for matured derivatives, net	(3,888		)	13,635			(5,943		)	34,791
Settlements received for early terminations of derivatives, net	—			—			—			4,234
Premiums paid for derivatives	(5,455		)	(1,448		)	(14,930		)	(13,542		)
Interest expense	14,845			23,697			42,787			69,590
Loss on disposal of assets, net	616			991			4,591			400
Income from equity method investee (see Note 3.c)	—			(2,371		)	—			(7,910		)
Proportionate Adjusted EBITDA of equity method investee(1)	—			6,789			—			19,755
Adjusted EBITDA	$	160,610		$	130,890		$	456,492		$	352,630

_____________________________________________________________________________

(1) Proportionate Adjusted EBITDA of Medallion, our equity method investee until its sale on October 30, 2017, is calculated as follows:

	Three months ended September 30,				Nine months ended September 30,
(in thousands)	2018		2017		2018		2017
Income from equity method investee	$	—	$	2,371	$	—	$	7,910
Adjusted for proportionate share of depreciation and amortization	—		4,418		—		11,845
Proportionate Adjusted EBITDA of equity method investee	$	—	$	6,789	$	—	$	19,755

Critical accounting policies and estimates

The discussion and analysis of our financial condition and results of operations are based upon our unaudited consolidated financial statements, which have been prepared in accordance with GAAP. The preparation of our financial statements requires us to make estimates and assumptions that affect the reported amounts of assets, liabilities, revenues and expenses and related disclosure of contingent assets and liabilities. Certain accounting policies involve judgments and uncertainties to such an extent that there is reasonable likelihood that materially different amounts could have been reported under different conditions or if different assumptions had been used. We evaluate our estimates and assumptions on a regular basis. We base our estimates on historical experience and various other assumptions that are believed to be reasonable under the circumstances, the results of which form the basis for making judgments about the carrying values of assets and liabilities that are not readily apparent from other sources. Actual results may differ from these estimates and assumptions used in preparation of our unaudited consolidated financial statements.

There have been no material changes in our critical accounting policies and procedures during the nine months ended September 30, 2018. See our critical accounting policies in "Part II, Item 7. Management's Discussion and Analysis of Financial Condition and Results of Operations" of the 2017 Annual Report. Furthermore, see Notes 4 and 7.c to our unaudited consolidated financial statements included elsewhere in this Quarterly Report for additional discussion of the impact of the adoption of ASC 606 and estimates pertaining to our 2018 performance share awards, respectively.

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Recent accounting pronouncements

See Note 2 to our unaudited consolidated financial statements included elsewhere in this Quarterly Report for information regarding recent accounting pronouncements.

Off-balance sheet arrangements

Currently, we do not have any off-balance sheet arrangements other than drilling contracts, firm sale and transportation commitments, a sand purchase and supply agreement and office and equipment operating leases which are described in "—Obligations and commitments." See Note 11 to our unaudited consolidated financial statements included elsewhere in this Quarterly Report for additional information.

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Item 3.    Quantitative and Qualitative Disclosures About Market Risk

The primary objective of the following information is to provide forward-looking quantitative and qualitative information about our potential exposure to market risk. The term "market risk," in our case, refers to the risk of loss arising from adverse changes in oil, NGL and natural gas prices and in interest rates. The disclosures are not meant to be precise indicators of expected future losses, but rather indicators of how we view and manage our ongoing market risk exposures. All of our market risk-sensitive derivative instruments were entered into for hedging purposes, rather than for speculative trading.

Commodity price exposure

Due to the inherent volatility in oil, NGL and natural gas prices, commodity transportation costs and differences in the prices of oil, NGL and natural gas between wherewe produce and where we sellsuch commodities,we engagein derivative transactions, such as puts, swaps, collars, basis swaps and, in the past, call spreads to hedge price risk associated with a portion ofouranticipated production.By removing a portion of the price volatility associated with future production, we expect to mitigate, but not eliminate, the potential effects of variability in cash flows from operations due to fluctuations in commodity prices, commodity transportation costs and differences in commodity prices between where we produce and where we sell our products.

During the second and third quarters of 2018, the Midland market crude oil price experienced an increased discount to WTI-Cushing prices, with the August 31, 2018 discount for prompt month delivery at $18 per Bbl of oil, primarily due to limited pipeline capacity constraining transportation of crude oil out of the Permian Basin to major marketing hubs including, but not limited to, Cushing, Oklahoma and the United States Gulf Coast. As of October 31, 2018, this Midland discount for prompt month delivery was $6 per Bbl of oil. This pipeline constraint is expected to continue to affect the Midland market oil price until further transportation capacity becomes operational or until basin-wide crude oil production decreases from its current levels. We will continue to pursue avenues to attempt to protect our oil value from basin differentials by securing transportation capacity, enabling us to sell oil in multiple markets, and entering into basis-swap derivatives.

The fair values of our open derivative contracts are largely determined by forward price curves of the relevant indices. As of September 30, 2018, a 10% change in the forward curves associated with our derivatives would have changed our unaudited consolidated balance sheet's net derivative position to the following amounts:

(in thousands)	10% Increase		10% Decrease
Net liability derivative position	$	70,691	$	54,814

As of September 30, 2018 and December 31, 2017, the net derivative positions were liabilities of $61.9 million and $13.0 million, respectively. See Notes 8 and 9.a to our unaudited consolidated financial statements included elsewhere in this Quarterly Report for additional disclosures regarding our derivatives.

Interest rate risk

Our Senior Secured Credit Facility bears interest at a floating rate and our January 2022 Notes and March 2023 Notes bear interest at fixed rates. The maturity years, outstanding balances and interest rates on our long-term debt as of September 30, 2018 were as follows:

	Maturity year
(in millions except for interest rates)	2022			2023(1)
Senior Secured Credit Facility	$	—		$	170.0
Floating interest rate	—		%	3.438		%
January 2022 Notes	$	450.0		$	—
Fixed interest rate	5.625		%	—		%
March 2023 Notes	$	—		$	350.0
Fixed interest rate	—		%	6.250		%

_____________________________________________________________________________

(1) The Senior Secured Credit Facility matures on April 19, 2023, provided that if either the January 2022 Notes or March 2023 Notes have not been refinanced on or prior to the applicable Early Maturity Date, the Senior Secured Credit Facility will mature on such Early Maturity Date.

Counterparty and customer credit risk

See Item 7A. "Quantitative and Qualitative Disclosures about Market Risk" in the 2017 Annual Report, Note 11 to our unaudited consolidated financial statements and "Part II, Item 1. Legal Proceedings" located elsewhere in this Quarterly Report

45

for further discussion on our counterparty and customer credit risk.

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Item 4.    Controls and Procedures

Evaluation of disclosure controls and procedures

As of the end of the period covered by this report, an evaluation of the effectiveness of the design and operation of Laredo's disclosure controls and procedures (as defined in Rule 13a-15(e) under the Exchange Act), was performed under the supervision and with the participation of Laredo's management, including our principal executive officer and principal financial officer. Based on that evaluation, these officers concluded that Laredo's disclosure controls and procedures were effective as of September 30, 2018. Our disclosure controls and other procedures are designed to provide reasonable assurance that the information required to be disclosed in the reports we file and submit under the Exchange Act is recorded, processed, summarized and reported within the time periods specified in the SEC's rules and forms, and that such information is accumulated and communicated to Laredo's management, including our principal executive officer and principal financial officer, as appropriate to allow timely decisions regarding required disclosure.

Evaluation of changes in internal control over financial reporting

There were no changes in our internal control over financial reporting during the quarter ended September 30, 2018 that have materially affected, or are reasonably likely to materially affect, our internal control over financial reporting.

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Part II

Item 1.    Legal Proceedings

From time to time, we are subject to various legal proceedings arising in the ordinary course of business, including proceedings for which we may not have insurance coverage. While many of these matters involve inherent uncertainty, except with regard to the specific litigation noted below, as of the date hereof, we do not currently believe that any such legal proceedings will have a material adverse effect on our business, financial position, results of operations or liquidity.

On May 3, 2017, Shell filed an Original Petition and Request for Disclosure in the District Court of Harris County, Texas, alleging that the crude oil purchase agreement entered into between Shell and Laredo effective October 1, 2016 through June 30, 2020 does not accurately reflect the compensation to be paid to Shell under certain circumstances due to a drafting mistake. Shell seeks reformation of one clause of the crude oil purchase agreement on the grounds of alleged mutual mistake or, in the alternative, unilateral mistake, an award of the amounts Shell alleges it should have been or should be paid under the crude oil purchase agreement, court costs and attorneys' fees. We do not believe there was a drafting mistake made in the crude oil purchase agreement, which covered the sale to Shell of 19,000 barrels of crude oil per day of our gross production, as well as the purchase by us of like-quantity crude oil from Shell. On December 11, 2017, Shell filed its First Amended Petition, in which it asserted nine causes of action, including multiple new claims for breach of contract and fraud.

Effective May 1, 2018, Shell terminated the crude oil purchase agreement and ceased purchasing our crude oil and selling crude oil to us under the terms of such agreement. As a result, we filed our Second Amended Answer and Original Counterclaim against Shell on June 15, 2018, in which we deny all allegations by Shell and seek damages in excess of $150.0 million resulting from Shell's breach and wrongful termination of the crude oil purchase agreement. Shell filed a Second Amended Petition on June 1, 2018, in which it asserted a new cause of action against us for alleged repudiation of Shell's proposed reformed version of the crude oil purchase agreement, a version never signed or agreed to by us.

Through April 30, 2018, the date on which Shell wrongfully terminated the crude oil purchase agreement, we had accounted for the costs and crude oil price realization as reflected in the terms of the crude oil purchase agreement. The accompanying unaudited consolidated balance sheets located elsewhere in this Quarterly Report do not include any amounts for damage claims or attorneys' fees sought by Shell. As of September 30, 2018, we had estimated an aggregate amount of $37.4 million that is the subject of Shell's claims, which is generally based on the contractual amount in dispute under the pricing election that is the subject of Shell's claims applied to the barrels of crude oil purchased and sold through the date on which Shell wrongfully terminated the crude oil purchase agreement. As a result of such termination, our estimate of this unrecorded amount is not anticipated to materially increase in the future. This estimate does not include damages sought by Shell pursuant to its latest repudiation claim asserted in its Second Amended Petition or amounts sought by Shell for recovery of attorneys' fees incurred for the prosecution of its claims.

We are unable to determine a probability of the outcome of this litigation at this time. We believe Shell's claims are meritless and the termination by Shell is improper and a breach of the crude oil purchase agreement. We therefore intend to vigorously defend ourselves against Shell's claims and pursue our rights under the terminated crude oil purchase agreement to seek all appropriate damages from Shell.

Item 1A.    Risk Factors

In addition to the other information set forth in this Quarterly Report, you should carefully consider the risks discussed in our 2017 Annual Report and our Second Quarter 2018 Quarterly Report. There have been no material changes in our risk factors from those described in the 2017 Annual Report or the Second Quarter 2018 Quarterly Report. The risks described in such reports are not the only risks facing us. Additional risks and uncertainties not currently known to us or that we currently deem to be immaterial also may materially adversely affect our business, financial condition or future results.

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Item 2.    Purchases of Equity Securities

The following table summarizes purchases of common stock by Laredo:

Period	Total number of shares purchased(1)	Weighted-average price paid per share		Total number of shares purchased as part of publicly announced plans(2)	Maximum value that may yet be purchased under the program as of the respective period-end date (2)
July 1, 2018 - July 31, 2018	715	$	9.62	—	$	112,782,213
August 1, 2018 - August 31, 2018	—	$	—	—	$	112,782,213
September 1, 2018 - September 30, 2018	1,171,099	$	8.41	1,170,190	$	102,945,283
Total	1,171,814			1,170,190

______________________________________________________________________________

(1) Included in these amounts are 1,624 shares withheld by us to satisfy employee tax withholding obligations that arose upon the lapse of restrictions on restricted stock awards.

(2) In February 2018, our board of directors authorized a $200 million share repurchase program commencing in February 2018. The repurchase program expires in February 2020. Repurchases of shares under this program totaled 1,170,190 at a cost of $9.9 million during the three months ended September 30, 2018. Share repurchases, if any, under the share repurchase program may be made through a variety of methods, which may include open market purchases, privately negotiated transactions and block trades. 

Item 3.    Defaults Upon Senior Securities

None.

Item 4.    Mine Safety Disclosures

Not applicable.

Item 5.    Other Information

The aircraft lease agreement between Lariat Ranch, LLC and Laredo was extended and amended, effective July 1, 2018.

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Item 6.    Exhibits

Exhibit Number	Description
2.1	Membership Interest Purchase and Sale Agreement, dated as of October 1, 2017, by and among Medallion Midland Acquisition, LLC, Medallion Gathering & Processing, LLC, Laredo Midstream Services, LLC, and Medallion Midstream Holdings, LLC (incorporated by reference to Exhibit 2.1 of Laredo's Current Report on Form 8-K (File No. 001-35380) filed on October 30, 2017).
3.1	Amended and Restated Certificate of Incorporation of Laredo Petroleum Holdings, Inc. (incorporated by reference to Exhibit 3.1 of Laredo's Current Report on Form 8-K (File No. 001-35380) filed on December 22, 2011).
3.2	Certificate of Ownership and Merger, dated as of December 30, 2013 (incorporated by reference to Exhibit 3.1 of Laredo's Current Report on Form 8-K (File No. 001-35380) filed on January 6, 2014).
3.3	Second Amended and Restated Bylaws of Laredo Petroleum, Inc. (incorporated by reference to Exhibit 3.3 of Laredo's Annual Report on Form 10-K (File No. 001-35380) filed on February 17, 2016).
4.1	Form of Common Stock Certificate (incorporated by reference to Exhibit 4.1 of Laredo's Registration Statement on Form S-1/A (File No. 333-176439) filed on November 14, 2011).
10.1*	Non-Exclusive Aircraft Lease Agreement, dated July 1, 2018 between Lariat Ranch, LLC and Laredo Petroleum, Inc.
31.1*	Certification of Chief Executive Officer Pursuant to Rule 13a-14(a)/15d-14(a) of the Securities Exchange Act of 1934.
31.2*	Certification of Chief Financial Officer Pursuant to Rule 13a-14(a)/15d-14(a) of the Securities Exchange Act of 1934.
32.1**	Certification of Chief Executive Officer and Chief Financial Officer 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 Schema Document.
101.CAL*	XBRL Calculation Linkbase Document.
101.DEF*	XBRL Definition Linkbase Document.
101.LAB*	XBRL Labels Linkbase Document.
101.PRE*	XBRL Presentation Linkbase Document.

______________________________________________________________________________

* Filed herewith.

** Furnished herewith.

# Management contract or compensatory plan or arrangement.

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SIGNATURES

Pursuant to the requirements 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. 

	LAREDO PETROLEUM, INC.
Date: November 6, 2018	By:	/s/ Randy A. Foutch
		Randy A. Foutch
		Chairman and Chief Executive Officer
		(principal executive officer)
Date: November 6, 2018	By:	/s/ Richard C. Buterbaugh
		Richard C. Buterbaugh
		Executive Vice President and Chief Financial Officer
		(principal financial officer)
Date: November 6, 2018	By:	/s/ Michael T. Beyer
		Michael T. Beyer
		Vice President - Controller and Chief Accounting Officer
		(principal accounting officer)

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EX-10.1

EXHIBIT 10.1

NON-EXCLUSIVE AIRCRAFT LEASE AGREEMENT

Dated as of the 1^st day of July, 2018.

between

Lariat Ranch, LLC

as Lessor,

and

Laredo Petroleum, Inc.

as Lessee,

concerning one 2013 Cessna 525C aircraft bearing

U.S. registration number N129CJ,

and

Manufacturer’s serial number 525C-129.

* * *

INSTRUCTIONS FOR COMPLIANCE WITH

"TRUTH IN LEASING" REQUIREMENTS UNDER FAR § 91.23

Within 24 hours after execution of this Agreement:

Lessee, or the registered Aircraft owner if Lessee is not a U.S. citizen,

must mail a copy of the executed Agreement, without Exhibit B, to the

following address via certified mail, return receipt requested:

Federal Aviation Administration

Aircraft Registration Branch

ATTN: Technical Section

P.O. Box 25724

Oklahoma City, Oklahoma 73125

48 hours prior to the first flight:

Lessee, or the registered Aircraft owner if Lessee is not a U.S. citizen, must notify by telephone or in person the FAA Flight Standards District Office nearest the airport where the first flight under this Agreement will originate. The notification shall include the location of the departure airport, the departure time of the first flight, and the Aircraft registration number, and unless otherwise authorized by that office, the notification shall be given at least 48 hours before takeoff.

Lessee must carry a copy of this signed Agreement in the Aircraft at all times.

* * *

Exhibit B is

intentionally omitted for FAA submission purposes.

-1-

This NON-EXCLUSIVE AIRCRAFT LEASE AGREEMENT (the "Agreement") is entered into as of this 1^st day of July, 2018 (the "Effective Date"), by and between Laredo Petroleum, Inc. ("Lessee") and Lariat Ranch, LLC ("Lessor").

W I T N E S S E T H :

WHEREAS, Lessor holds title or a leasehold interest in and to the Aircraft described and referred to herein;

WHEREAS, Lessee desires to lease from Lessor, and Lessor desires to lease to Lessee, the Aircraft on a non-exclusive basis, upon and subject to the terms and conditions of this Agreement; and

WHEREAS, during the Term of this Agreement, the Aircraft may also be subject to use by Lessor, and may be subject to concurrent leases to other lessees.

NOW, THEREFORE, in consideration of the mutual promises herein contained and other good and valid consideration, the receipt and sufficiency of which are hereby acknowledged, the Parties agree as follows:

1. DEFINITIONS. The following terms shall have the following meanings for all purposes of this Agreement:

"Aircraft" means that certain aircraft identified on Exhibit A, including all items appurtenant delivered by Lessor to Lessee, specifically including the engine/s presently attached, and the Aircraft Documents. The Aircraft is identified on Exhibit A.

"Aircraft Documents" means all flight records, maintenance records, historical records, modification records, overhaul records, manuals, logbooks, authorizations, drawings and data relating to the Aircraft that have been delivered to Lessee by Lessor, or are required by FAA regulation or other law to be created or maintained by Lessee with respect to the maintenance and/or operation of the Aircraft.

"Aircraft Incident" shall mean any event (1) causing damage, whether substantial or cosmetic, or loss of value, to the Aircraft that is not ordinary wear and tear (including, without limitation, destruction, loss, theft, requisition of title or use, confiscation, and taking), (2) in which the Aircraft, or any other instrument associated with the Aircraft operation, causes injury to any individual or damage to any property, (3) in which Aircraft use results in a fine, or (4) which results in an interruption of the Aircraft’s serviceability.

“Excused Cause” means failure or delay caused by any government regulation or authority, mechanical difficulty, war, civil commotion, strikes or labor disputes, weather conditions, or acts of God cause such failure.

"FAA" means the Federal Aviation Administration or any successor agency.

"FAR" means collectively the Aeronautics Regulations of the Federal Aviation Administration and the Department of Transportation, as codified at Title 14, Parts 1 to 399 of the United States Code of Federal Regulations.

-2-

"Flight Hour" means each flight hour of use of the Aircraft during any Lease Period, as recorded on the Aircraft hour meter. Flight Hours shall be measured in one-tenth hour increments.

“Lease Period” means each lease period which commences with delivery of the Aircraft to Lessee and concludes with the return of the Aircraft to Lessor. Lessee’s assumption and use of the Aircraft for each Lease Period shall be documented in the Aircraft flight logs and/or other applicable documents. If requested by Lessor, Lessee shall also execute an Aircraft Delivery Receipt in the form attached to this Agreement as Exhibit C at any time the Lessee accepts delivery of the Aircraft. In the event that the Aircraft must be repositioned, other than to the Operating Base, for Lessee’s use, flight time for such repositioning shall be deemed a Lease Period.

"Lien" means any mortgage, security interest, lease, or other charge or encumbrance or claim or right of others, including, without limitation, rights of others under any airframe or engine interchange or pooling agreement.

"Operating Base" means, with respect to each Lease Period, that location where Lessor delivers the Aircraft to Lessee.

"Operational Control" has the same meaning given the term in Section 1.1 of the FAR.

"Pilot in Command" has the same meaning given the term in Section 1.1 of the FAR.

"Taxes" means all sales taxes, use taxes, value added taxes, retailer taxes, duties, fees, excise taxes (including, without limitation, federal transportation excise taxes), or other taxes of any kind which may be assessed or levied by any taxing jurisdiction as a result of the lease of the Aircraft to Lessee, or the use of the Aircraft by Lessee, or the provision of a taxable transportation service by Lessee using the Aircraft. Taxes do not include any taxes imposed on the net income of Lessor.

"Term" means the term of this Agreement set forth in Section 3.1.

2. LEASE AND DELIVERY OF THE AIRCRAFT

2.1. Lease. Lessor agrees to lease to Lessee, and Lessee agrees to lease from Lessor, the Aircraft, during each Lease Period and otherwise on the terms and conditions of this Agreement.

2.2. Delivery and Return. This Agreement contemplates use of the Aircraft by Lessee for one or more Lease Periods. For Lessee’s use, the Aircraft shall be delivered to Lessee on a mutually agreed date or dates at the Operating Base, or other mutually agreed location, "AS IS," "WHERE IS," AND SUBJECT TO EACH AND EVERY DISCLAIMER OF WARRANTY AND REPRESENTATION AS SET FORTH IN SECTION 4 HEREOF. Lessor shall not be liable for delay or failure to furnish the Aircraft pursuant to this Agreement, and Lessee shall not be liable for delay or failure to return the Aircraft at the end of any Lease Period pursuant to this Agreement, when such failure or delay is caused by an Excused Cause. Lessee shall return the Aircraft to Lessor at the Operating Base, or other mutually agreed location, according to the Lessee’s scheduled return date under Section 3.2.

2.3. Non-Exclusivity. Lessee and Lessor acknowledge that the Aircraft is leased to Lessee on a non-exclusive basis and may be subject to use by Lessor, and/or to additional non-exclusive leases to other parties during the Term.

2.4. Truth-In-Leasing Procedures. Lessee shall be responsible for assuring that the INSTRUCTIONS FOR COMPLIANCE WITH "TRUTH IN LEASING" REQUIREMENTS UNDER FAR § 91.23 contained on the cover page of this

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Agreement are complied with. For this purpose, “U.S. citizen” has the meaning given to it in FAR § 47.2.

3. TERM, SCHEDULING, AND RENT

3.1. Term. The term of this Agreement is one (1) year, automatically renewable for one (1) year terms unless cancelled as provided in this Section 3.1. This Agreement may be terminated at the will of either party at any time upon 30-day written notice. In the event that this Agreement is terminated at Lessor’s election during a Lease Period, Lessor shall pay the actual costs of repositioning the Aircraft to the Operating Base. In the event of termination by Lessee’s election during a Lease Period, Lessee will pay the costs of repositioning the Aircraft to the Operating Base.

3.2. Scheduling. Each use of the Aircraft by Lessee shall be subject to Lessor’s approval. Lessee shall submit flight-scheduling requests, containing such information as Lessor reasonably requires, to Lessor as far in advance as reasonably possible. Lessor may approve or deny any flight-scheduling request in Lessor’s sole discretion. Although this Agreement provides a framework for future use of the Aircraft by Lessee, it does not confer upon Lessee any recurring or continuous right to use the Aircraft. No Lease Period shall continue for a period of greater than seven (7) days.

3.2.1. Breaches of Schedule. In the event that Lessee has reason to believe that it will not be able to meet its scheduled time to return the Aircraft to Lessor, Lessee shall promptly alert Lessor to this fact. In such instance, for each day after the scheduled return time that Lessee does not return the Aircraft, Lessee shall be charged any amounts due under this Agreement. In the event that Lessor has reason to believe that it will not be able to meet its scheduled time to provide the Aircraft to Lessor once Lessor has approved a requested flight by Lessee, Lessor shall promptly alert Lessee to this fact. This paragraph shall not apply in any situation where (1) the delay results from an Excused Cause, and (2) Lessor provides the Aircraft to Lessee, or Lessee returns the Aircraft to Lessor, as soon as is practical after the Excused Cause abates.

3.3. RENT. Lessee shall pay rent as specified in Exhibit B, attached hereto. All rent shall be paid to the Lessor in immediately available U.S. funds and in form and manner as the Lessor in its sole discretion may instruct Lessee from time to time.

3.3.1. Minimum Charge During Lease Periods. There shall be no minimum charges with respect to Lessee’s use of the Aircraft.

3.4. TAXES.

3.4.1. Neither rent nor any other payments to be made by Lessee under this Agreement includes the amount of any Taxes which may be assessed or levied as a result of the lease of the Aircraft to Lessee or the use of the Aircraft by Lessee.

3.4.2. Lessee shall be responsible for, shall indemnify and hold harmless Lessor against, and, except as provided in Section 3.4.3, Lessee shall remit to Lessor all such Taxes together with each payment of rent pursuant to Section 3.3; provided, however, that if any such Taxes shall be due and payable at an earlier time as a matter of law, Lessee shall remit such Taxes to Lessor at the time required by law.

3.4.3. If any Taxes shall be required by law to be paid by Lessee directly to the appropriate taxing jurisdiction, Lessee shall remit such Taxes directly to the appropriate taxing jurisdiction promptly at the time required by law, and shall provide evidence of such payment to Lessor.

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4. DISCLAIMER OF WARRANTIES AND WAIVER. THE AIRCRAFT IS BEING LEASED BY THE LESSOR TO THE LESSEE HEREUNDER ON A COMPLETELY "AS IS," "WHERE IS," BASIS, WHICH IS ACKNOWLEDGED AND AGREED TO BY THE LESSEE. LESSEE ACKNOWLEDGES THAT IT HAS SELECTED THE AIRCRAFT WITHOUT ANY ASSISTANCE FROM LESSOR, ITS AGENTS OR EMPLOYEES. THE WARRANTIES AND REPRESENTATIONS SET FORTH IN THIS SECTION 4, SECTION 7.3, SECTION 8.1 AND SECTION 14 ARE EXCLUSIVE AND IN LIEU OF ALL OTHER REPRESENTATIONS OR WARRANTIES WHATSOEVER, EXPRESS OR IMPLIED, AND LESSOR HAS NOT MADE AND SHALL NOT BE CONSIDERED OR DEEMED TO HAVE MADE (WHETHER BY VIRTUE OF HAVING LEASED THE AIRCRAFT UNDER THIS AGREEMENT, OR HAVING ACQUIRED THE AIRCRAFT, OR HAVING DONE OR FAILED TO DO ANY ACT, OR HAVING ACQUIRED OR FAILED TO ACQUIRE ANY STATUS UNDER OR IN RELATION TO THIS AGREEMENT OR OTHERWISE) ANY OTHER REPRESENTATION OR WARRANTY WHATSOEVER, EXPRESS OR IMPLIED, WITH RESPECT TO THE AIRCRAFT OR TO ANY PART THEREOF, AND SPECIFICALLY, WITHOUT LIMITATION, IN THIS RESPECT DISCLAIMS ALL REPRESENTATIONS AND/OR WARRANTIES AS TO AIRWORTHINESS, VALUE, CONDITION, DESIGN, MERCHANTABILITY, COMPLIANCE WITH SPECIFICATIONS, CONSTRUCTION AND CONDITION OF THE AIRCRAFT OPERATION, OR FITNESS FOR A PARTICULAR USE OF THE AIRCRAFT AND AS TO THE ABSENCE OF LATENT AND OTHER DEFECTS, WHETHER OR NOT DISCOVERABLE, AS TO THE ABSENCE OF ANY INFRINGEMENT OR THE LIKE, HEREUNDER OF ANY PATENT, TRADEMARK OR COPYRIGHT, AS TO THE ABSENCE OF OBLIGATIONS BASED ON STRICT LIABILITY IN TORT, OR AS TO THE QUALITY OF THE MATERIAL OR WORKMANSHIP OF THE AIRCRAFT OR ANY PART THEREOF OR ANY OTHER REPRESENTATION OR WARRANTY WHATSOEVER, EXPRESS OR IMPLIED (INCLUDING ANY IMPLIED WARRANTY ARISING FROM A COURSE OF PERFORMANCE OR DEALING OR USAGE OF TRADE), WITH RESPECT TO THE AIRCRAFT OR ANY PART THEREOF. THE LESSEE HEREBY WAIVES, RELEASES, DISCLAIMS, AND RENOUNCES ALL EXPECTATION OF OR RELIANCE UPON ANY SUCH AND OTHER WARRANTIES, OBLIGATIONS, AND LIABILITIES OF LESSOR AND RIGHTS, CLAIMS, AND REMEDIES OF THE LESSEE AGAINST LESSOR, EXPRESS OR IMPLIED, ARISING BY LAW OR OTHERWISE (OTHER THAN BREACH OF EXPRESS TERMS OF THIS AGREEMENT), INCLUDING BUT NOT LIMITED TO (I) ANY IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS FOR ANY PARTICULAR USE, (II) ANY IMPLIED WARRANTY ARISING FROM COURSE OF PERFORMANCE, COURSE OF DEALING, OR USAGE OF TRADE, (III) ANY OBLIGATION, LIABILITY, RIGHT, CLAIM, OR REMEDY IN TORT, WHETHER OR NOT ARISING FROM THE NEGLIGENCE OF LESSOR, ACTUAL OR IMPUTED, AND (IV) ANY OBLIGATION, LIABILITY, RIGHT, CLAIM OR REMEDY FOR LOSS OF OR DAMAGE TO THE AIRCRAFT, FOR LOSS OF USE, REVENUE OR PROFIT WITH RESPECT TO THE AIRCRAFT, OR FOR ANY OTHER DIRECT, INCIDENTAL, OR CONSEQUENTIAL DAMAGES.

5. REGISTRATION

5.1. Title and Registration; Subordination. Lessee acknowledges that, other than with respect to the leasehold interest transferred to Lessee during each Lease Period solely related to Lessee’s right to possess and operate the Aircraft as contemplated hereunder, title (legal, beneficial, and equitable) to the Aircraft shall not shift in any manner as a result of this Agreement. Lessee shall undertake, to the extent permitted by law, to do

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all such further acts, deeds, assurances or things as may in the reasonable opinion of Lessor be necessary to preserve title to the Aircraft.

6. USE AND OPERATION

6.1. Use and Operation. Lessee shall be solely and exclusively responsible for the use, operation, and control of the Aircraft during each Lease Period. Lessee (i) shall not operate or locate Aircraft, or suffer the Aircraft to be operated or located, in any area excluded from coverage by any insurance policy in effect or required to be maintained hereunder with respect to the Aircraft, or in any war zone, (ii) shall not operate the Aircraft or permit the Aircraft to be operated during the Term except in operations for which Lessee is duly authorized, or use or permit the Aircraft to be used for a purpose for which the Aircraft is not designed and suitable, (iii) shall not permit the Aircraft to be maintained, used, or operated during the Term in violation of any law, or contrary to any manufacturer's operating manuals or instructions, and (iv) shall not knowingly permit the Aircraft to be used for the carriage of any persons or property prohibited by law, nor knowingly permit the Aircraft to be used during the existence of any known defect except in accordance with the FARs; (v) shall not, without Lessor’s express permission, remove any parts or engines from the Aircraft, or make any modifications to the Aircraft; (vi) shall abide by Lessor’s reasonable rules to preserve the longevity, quality, and value of the Aircraft, including but not limited to no smoking and no animals aboard the Aircraft, and including appropriate, safe, and secure storage, including protection from wind and weather, when the Aircraft is stored or parked during a Lease Period; (vii) shall operate the Aircraft in accordance with the provisions of FAR 91 and shall not operate the Aircraft in commercial service, as a common carrier, or otherwise for compensation or hire except to the extent permitted under FARs 91.321 and 91.501, if applicable, and shall not sublease the Aircraft or otherwise allow any party other than Lessee or Lessor to assume Operational Control of the Aircraft; and (viii) shall use the aircraft only within the geographical area covering the United States, Western Europe, Canada, and the Caribbean. During any Lease Period, Lessee shall be responsible for the conduct of all persons onboard the Aircraft, other than authorized representatives of Lessor, if any.

6.2. Operational Control. THE PARTIES EXPRESSLY AGREE THAT LESSEE SHALL AT ALL TIMES WHILE THE AIRCRAFT IS IN ITS POSSESSION DURING A LEASE PERIOD MAINTAIN OPERATIONAL CONTROL OF THE AIRCRAFT, AND THAT THE INTENT OF THE PARTIES IS THAT THIS AGREEMENT CONSTITUTE A DRY OPERATING LEASE. Lessee shall exercise exclusive authority over initiating, conducting, or terminating any flight conducted by Lessee during a Lease Period pursuant to this Agreement, and the Flight Crew (as defined below) shall be under the exclusive command and control of Lessee in all phases of such flights.

6.3. Authority of Pilot in Command. Notwithstanding that Lessee shall have operational control of the Aircraft during any flight conducted pursuant to this Agreement, Lessor and Lessee expressly agree that the Pilot in Command, in his or her sole discretion may terminate any flight, refuse to commence any flight, or take any other flight-related action which in the judgment of the Pilot in Command is necessitated by considerations of safety. The Pilot in Command shall have final and complete authority to postpone or cancel any flight for any reason or condition that in his or her judgment would compromise the safety of the flight. No such action of the Pilot in Command shall create or support any liability for loss, injury, damage, or delay to Lessor.

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6.4. Right to Inspect. Lessee and its agents shall have the right to inspect the Aircraft or the Aircraft Documents at any reasonable time, upon giving Lessor reasonable notice, to ascertain the condition of the Aircraft and to satisfy Lessee that Lessor is properly repairing and maintaining the Aircraft in accordance with the requirements of this Agreement. All required repairs shall be performed as soon as practicable after such inspection.

6.5. Aircraft Documents. Lessor shall, at its expense, maintain and preserve, or cause to be maintained and preserved, in the English language, all Aircraft Documents in a complete, accurate, and up-to-date manner. While the Aircraft is in Lessee’s possession during each Lease Period during the Term, Lessee shall keep accurate logs of the Aircraft location, and flight hours, and otherwise provide such information as is necessary for Lessor to meet its obligations with respect to maintenance of the Aircraft Documents as noted above. On an annual basis, or otherwise as reasonably requested by Lessor, Lessee shall provide to Lessor a signed record verifying this log.

7. MAINTENANCE AND AIRCRAFT EXPENSES

7.1. Lessee to Pay All Operating Costs. Lessee shall arrange for and pay all operating costs associated with Lessee’s use and incurred during the Term, including, without limitation, costs of pilots, cabin personnel, mechanics, and other ground support personnel (the foregoing collectively, the “Flight Crew”); oil, lubricants; landing and navigation fees; airport charges; passenger service and any and all other expenses of any kind or nature, arising directly or indirectly in connection with or related to the use, movement and operation of the Aircraft by Lessee during the Term. Aircraft fuel during Lease Periods shall be purchased by Lessee. If any fuel costs, landing fees or other charges related to Lessee’s use of the Aircraft are charged to or paid by Lessor, then Lessee shall reimburse Lessor in full for all undisputed charges.

7.2. Fines and Penalties. Lessee shall pay any fines and penalties associated with use of the Aircraft during a Lease Period.

7.3. Maintenance of Aircraft. Lessor shall arrange and pay for all necessary maintenance for the Aircraft to keep it in airworthy operating condition and in compliance with all applicable FARs and the Aircraft Operating Manual, including without limitation all non-scheduled and scheduled repairs, inspection and other maintenance required with respect to the operation of the Aircraft. Notwithstanding the foregoing, Lessee shall pay for repairs of the Aircraft when such repair is necessary solely as a result of Lessee’s misuse of the Aircraft rather than ordinary wear and tear. Lessee’s duty to repair damage due to Lessee’s misuse specifically includes any cosmetic damage to the interior or exterior of the Aircraft, including upholstery, carpet, paint and static wicks. So long as reasonably and timely scheduled and performed by Lessor, Lessor shall have no expense or liability for repair or maintenance delays and shall not be liable to Lessee for any damage from loss of profit or loss of use of Aircraft, either during or outside a Lease Period.

7.4. Flight Crew. Lessee, at its sole expense, shall locate and retain (through either direct employment or contracting with an independent contractor for flight services) a duly qualified “Flight Crew.” All members of the Flight Crew shall be fully competent and experienced, duly licensed, and qualified in accordance with all FAA and other legal requirements and shall be approved under all insurance policies covering the Aircraft. All members of the Flight Crew who are pilots shall be fully trained in accordance with an FAA-approved training program, including initial and recurrent training and, where appropriate, contractor-provided simulator training.

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7.5. Insurance. Lessor shall maintain, or cause to be maintained, bodily injury and property damage, liability insurance in an amount no less than the amount outlined on Exhibit A and Combined Single Limit for the benefit of itself and Lessee in connection with the use of the Aircraft. Said policy shall be an occurrence policy naming Lessor and Lessee as named or additional insured, and shall be fully endorsed to cover the individual operations of Lessor and Lessee as the party in Operational Control of the Aircraft, as applicable. Lessor shall also maintain all risks aircraft hull insurance in an amount equal to the fair market value of the Aircraft, which the parties agree is not less than the amount outlined on Exhibit A, and such insurance shall name Lessor as the loss payee. All such insurance policies shall also contain provisions that: (a) they shall operate in the same manner as if there were separate policies covering each insured; (b) they shall not be invalidated due to any act or failure to act of Lessor and Lessee or any permitted passenger on the Aircraft; and (c) the insurer(s) shall grant a waiver of subrogation to Lessee with respect to physical damage coverage on the insurance policies. Upon execution of this Agreement, upon each annual renewal of said policies, and otherwise upon reasonable request, Lessor will provide Lessee with a Certificate of Insurance upon execution of this Agreement.

8. CONDITION DURING TERM AND RETURN OF AIRCRAFT

8.1. Delivery. At the commencement of each Lease Period, Lessor shall deliver the Aircraft to Lessee in an airworthy operating condition and in compliance with all applicable FARs and the Aircraft Operating Manual.

8.2. Return. Upon conclusion of each Lease Period, Lessee shall return the Aircraft to the Lessor by delivering the same, at the Lessee’s own risk and expense, to the Operating Base, or other mutually agreed location, fully equipped with all engines installed thereon. The Aircraft at the time of its return shall be in the condition set forth in this Section 8 and shall be free and clear of any Liens resulting from Lessee’s use or possession.

8.3. Condition of Aircraft. The Aircraft at the time of its return to Lessor shall have been maintained in accordance with the provisions of this Agreement with the same care and consideration for the technical condition of the Aircraft as if it were to have been kept in continued regular service by the Lessee, and shall meet the following requirements:

8.3.1. Operating Condition. The Aircraft shall be in as good condition as at the beginning of the Lease Period, ordinary wear and tear excepted.

8.3.2. Cleanliness Standards. The Aircraft shall be as clean as it was at the beginning of the Lease Period.

8.4. Aircraft Documents. Lessee shall deliver, or cause to be delivered to Lessor, at the time the Aircraft is returned to Lessor, all documentation reasonably necessary for Lessor to meet its obligations with respect to Lessor’s maintenance of the Aircraft Documents as contemplated hereunder.

9. LIENS. Lessee shall ensure that no Liens are created or placed against the Aircraft by Lessee or third parties as a result of Lessee’s actions, except for mechanic’s liens to be discharged in the ordinary course of business. Lessee shall notify Lessor promptly upon learning of any Liens not permitted by these terms. Lessee shall, at its own cost and expense, take all such actions as may be necessary to discharge and satisfy in full any such Lien promptly after the same becomes known to it.

10. DEFAULTS AND REMEDIES. In the event of default, the non-defaulting party shall be entitled only to expectancy damages, provided that in no event shall either party be subject to indirect, non-consequential or punitive damages of any kind. In the event of a dispute, the

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losing party shall pay the reasonable costs (including attorney’s fees) of the other party in resolving the dispute.

11. NOTICES. All communications, declarations, demands, consents, directions, approvals, instructions, requests, and notices required or permitted by this Agreement shall be in writing and shall be deemed to have been duly given or made when delivered personally or transmitted electronically by e-mail or facsimile, receipt acknowledged, or in the case of documented overnight delivery service or registered or certified mail, return receipt requested, delivery charge or postage prepaid, on the date shown on the receipt thereof, in each case at the address set forth below:

If to Lessor:Lariat Ranch, LLC

Attn: Randy A. Foutch

8605 South Elwood Ave. Hangar B-124

Tulsa, Oklahoma 74132

If to Lessee:Laredo Petroleum, Inc.

Attn: Richard C. Buterbaugh

15 W. Sixth Street, Suite 900

Tulsa, OK 74119

12. AIRCRAFT INCIDENTS AND RISK OF LOSS. In the event of an Aircraft Incident during a Lease Period, Lessee shall immediately report such Aircraft Incident to Lessor, to the insurance company/ies underwriting such risk, and to any and all applicable governmental agencies, and shall furnish such information and execute such documents as may be required and necessary to collect the proceeds from the insurance policies. At all times during any Lease Period, but solely during such Lease Period, Lessee shall bear the entire risk of an Aircraft Incident, and shall indemnify and hold Lessor harmless from and against any losses or liabilities, including insurance deductibles, to the extent not compensated by insurance (provided that said obligation to indemnify shall not exceed the liability limits as set forth in this Agreement so long as said insurance coverage has not been denied due solely to Lessee’s own actions or failure to act), arising from an Aircraft Incident (including, without limitation, destruction, loss, theft, requisition of title or use, confiscation, taking, or damage of or to the Aircraft from any cause, as well as damage or injury to the person or property of others), and all fines or damages, including consequential, indirect, and punitive claims in contract, tort or otherwise owed to third parties, and suits, actions or proceedings arising from the use, operation, or storage of the Aircraft during a Lease Period. In the case of fines that are not tax deductible under 26 USC 162(f), indemnification shall be on an after-tax basis.

12.1. Amounts Paid by Third Parties. Lessor shall be entitled to receive directly any payments of monies by third parties or their insurers for damage to the Aircraft during a Lease Period. Such monies received will offset amounts otherwise owed by Lessee for such damage.

12.2. Destruction of Engine/s, but not Aircraft. In the event of loss or destruction during a Lease Period of an Aircraft engine so that it is no longer serviceable that arises solely and exclusively from the misuse of the Aircraft and/or engine by Lessee and not as a result of accident or normal wear and tear and that is not otherwise covered by any insurance or maintenance programs utilized by Lessor with respect to its Aircraft maintenance obligations hereunder, Lessee shall promptly notify Lessor of such event

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and shall, at its own cost, replace such engine/s with replacement engine/s (“Replacement”) equal to or better than the lost or destroyed engine/s, and will cause title to such Replacement to be transferred free of all liens to, and perfected (with the Aircraft owner’s cooperation) in the name of, the Aircraft owner, whereupon the Replacement shall be treated for the purposes of this Agreement as if it had been on the Aircraft at the time the Agreement was executed.

13. ADDITIONAL PROVISIONS

13.1. Entire Agreement. This Agreement, and all terms, conditions, warranties, and representations herein, are for the sole and exclusive benefit of the signatories hereto. This Agreement constitutes the entire agreement of the parties as of its Effective Date and supersedes all prior or independent, oral or written agreements, understandings, statements, representations, commitments, promises, and warranties made with respect to the subject matter of this Agreement. This Agreement has been negotiated by the parties and shall not be deemed to have been prepared by one, but by each equally.

13.2. Other Transactions. Except as specifically provided in this Agreement, none of the provisions of this Agreement, nor any oral or written statements, representations, commitments, promises, or warranties made with respect to the subject matter of this Agreement shall be construed or relied upon by any party as the basis of, consideration for, or inducement to engage in any separate agreement, transaction, or commitment for any purpose whatsoever.

13.3. Authority of the Parties. Each of the parties hereto represents to that other that (i) it has full power, authority and legal right to enter into and perform this Agreement, (ii) the execution, delivery and performance of this Agreement has been duly authorized by all necessary action on each party’s part, does not require any approvals or consents except such approvals and consents as have been duly obtained, and (iii) this Agreement does not contravene any law binding on either of the parties or contravene any agreement to which either of the parties hereto is a party or by which it is bound, or any law governmental rule, regulation or order. Upon request, each of the parties will provide the other party with documentary evidence of its authority to enter into this Agreement.

13.4. Prohibited and Unenforceable Provisions. Any provision of this Agreement which is prohibited or unenforceable in any jurisdiction shall, as to such jurisdiction, be deemed replaced with a valid and enforceable provision that as nearly as possible effectuates the parties’ intent as expressed in this Agreement. To the extent permitted by law, Lessor and Lessee hereby waive any provision of law that renders any provision hereof prohibited or unenforceable in any respect.

13.5. Enforcement. This Agreement, including all agreements, covenants, representations, and warranties, shall be binding upon and inure to the benefit of and may be enforced by Lessor, Lessee, and each of their agents, servants, and personal representatives. No third party beneficiaries are created. No third party beneficiaries are created, other than the rights of the Aircraft owner under Section 12 (pertaining to owner’s rights in the case of an Aircraft Incident causing Aircraft damage).

13.6. Headings. The section and subsection headings in this Agreement are for convenience of reference only and shall not modify, define, expand, or limit any of the terms or provisions hereof.

13.7. Counterparts. The parties hereto may execute this Agreement in separate counterparts, each of which when so executed and delivered shall be an original, but all such counterparts shall together constitute but one and the same instrument. Electronic or FAX signatures shall have the same effect as originals.

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13.8. Amendments. No term or provision of this Agreement may be amended, changed, waived, discharged, or terminated orally, but only by an instrument in writing signed by the party against which the enforcement of the change, waiver, discharge, or termination is sought.

13.9. No Waiver. No delay or omission in the exercise or enforcement of any right or remedy hereunder by either party shall be construed as a waiver of such right or remedy. All remedies, rights, undertakings, obligations, and agreements contained herein shall be cumulative and not mutually exclusive, and in addition to all other rights and remedies which either party possesses at law or in equity.

13.10. Assignments. Lessee shall have no right to assign this Agreement, but Lessor shall.

14. TRUTH IN LEASING UNDER SECTION 91.23 OF THE FARs.

WITHIN THE TWELVE (12) MONTH PERIOD PRECEDING THE DATE OF THIS AGREEMENT, THE AIRCRAFT HAS BEEN INSPECTED AND MAINTAINED IN ACCORDANCE WITH THE FOLLOWING PROVISION OF THE FARS:

CHECK ONE:

o § 91.409 (f) (1):A continuous airworthiness inspection program that is part of a continuous airworthiness maintenance program currently in use by a person holding an air carrier operating certificate or an operating certificate issued under FAR Part 121 or 135 and operating that make and model aircraft under FAR Part 121 or operating that make and model under FAR Part 135 and maintaining it under FAR 135.411(a)(2).

o § 91.409 (f) (2):An approved aircraft inspection program approved under FAR 135.419 and currently in use by a person holding an operating certificate issued under FAR Part 135.

ý § 91.409 (f) (3):A current inspection program recommended by the manufacturer.

o § 91.409 (f) (4):Any other inspection program established by the registered owner or operator of the Aircraft and approved by the Administrator of the Federal Aviation Administration in accordance with FAR 91.409 (g).

THE PARTIES HERETO CERTIFY THAT DURING THE TERM OF THIS AGREEMENT AND FOR OPERATIONS CONDUCTED HEREUNDER, THE AIRCRAFT WILL BE MAINTAINED AND INSPECTED IN ACCORDANCE WITH THE PROVISIONS OF FAR:

CHECK ONE:

o § 91.409 (f) (1) o § 91.409 (f) (2)ý § 91.409 (f) (3)o § 91.409 (f) (4)

LESSEE ACKNOWLEDGES THAT WHEN IT OPERATES THE AIRCRAFT UNDER THIS AGREEMENT, IT SHALL BE KNOWN AS, CONSIDERED, AND IN FACT WILL BE THE OPERATOR OF SUCH AIRCRAFT. EACH PARTY HERETO CERTIFIES THAT IT UNDERSTANDS THE EXTENT OF ITS RESPONSIBILITIES, SET FORTH HEREIN, FOR COMPLIANCE WITH APPLICABLE FEDERAL AVIATION REGULATIONS.

THE LESSEE, WHOSE NAME IS SET FORTH BELOW, AND WHOSE ADDRESS IS 15 W. SIXTH STREET, SUITE 900, TULSA, OK 74119, SHALL BE SOLELY RESPONSIBLE FOR OPERATIONAL CONTROL OF THE AIRCRAFT DURING ALL LEASE PERIODS THROUGHOUT THE TERM OF THIS AGREEMENT. BOTH LESSOR AND LESSEE CERTIFIES BELOW THAT IT UNDERSTANDS ITS RESPONSIBILITIES FOR COMPLIANCE WITH ALL APPLICABLE FEDERAL AVIATION REGULATIONS.

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AN EXPLANATION OF FACTORS BEARING ON OPERATIONAL CONTROL AND PERTINENT FEDERAL AVIATION REGULATIONS CAN BE OBTAINED FROM THE NEAREST FEDERAL AVIATION ADMINISTRATION FLIGHT STANDARDS DISTRICT OFFICE, GENERAL AVIATION DISTRICT OFFICE, OR AIR CARRIER DISTRICT OFFICE.

THE PARTIES HERETO CERTIFY THAT A TRUE COPY OF THIS AGREEMENT SHALL BE CARRIED ON THE AIRCRAFT AT ALL TIMES, AND SHALL BE MADE AVAILABLE FOR INSPECTION UPON REQUEST BY AN APPROPRIATELY CONSTITUTED IDENTIFIED REPRESENTATIVE OF THE ADMINISTRATOR OF THE FAA.

IN WITNESS WHEREOF, the Lessor and the Lessee have each caused this Non-Exclusive Aircraft Lease Agreement to be duly executed as of the Effective Date.

LESSOR: Lariat Ranch, LLC	LESSEE: Laredo Petroleum, Inc.
By: /s/ Randy A. Foutch	By: /s/ Richard C. Buterbaugh
Print: Randy A. Foutch	Print: Richard C. Buterbaugh
Title: Manager	Title: Executive V.P. & CFO

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EXHIBIT A

Aircraft Make, Model,	Cessna Citation CJ4, CE-525C
Registration and Serial Number	N129CJ S/N 525C-129
Engine Information	FJ44-4A (2): S/N 211273 (left); 211272 (right)
Add’l Aircraft Identification
Hull Value for Insurance:	$8,100,000

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EXHIBIT B

Calculation of Rent

Rent Payment Date

At the Rent Payment Date (or immediately upon termination of this Agreement), the Lessee shall pay to Lessor rent equal to the Hourly Rental Rate (defined below) multiplied by the number of Flight Hours since the prior Rent Payment Date (or, if none, since execution of this Agreement) (the period of time since being the “Elapsed Days”). Should Lessee fail to make a rental payment within 30 days of receipt of invoice, Lessee shall pay a late charge equal to 10% of such payment, and the late charge and overdue rent shall be charged annual interest at 15% compounded at the beginning of each month.

The Rent Payment Date shall be the last day of each month.

Rental Charge

Hourly Rental Rate is: $3,361.02 USD, subject to quarterly redetermination as the parties shall agree.

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EXHIBIT C

AIRCRAFT DELIVERY RECEIPT

This Aircraft Delivery Receipt is delivered on the date set out below by Laredo Petroleum, Inc. (“Lessee”) to Lariat Ranch, LLC (“Lessor”) pursuant to the Non-Exclusive Aircraft Lease Agreement as of January 1, 2015, between Lessor and Lessee (the “Lease”). Capitalized terms used in this document shall have the meanings given to such terms in the Lease unless otherwise indicated.

AIRCRAFT: 525C-129, N129CJ

ENGINES:FJ44-4A (2): S/N 211273 (left); 211272 (right)

Lessee hereby confirms to Lessor that Lessee has at Tulsa, Oklahoma on this ___ day of _________________, 20__, at ___________, accepted delivery of the Aircraft for its exclusive use during the Lease Period ending on the ___ day of ________, 20__. Lessee will redeliver the Aircraft to Lessor at _________________________________________. Further, Lessee confirms that it has inspected the Aircraft and found its condition to be without faults, except as listed below. (LIST ALL DISCOVERED FAULTS, NO MATTER HOW MINOR, IN AIRCRAFT CONDITION AT DELIVERY. Attach additional pages, if necessary.)

HOURS AND CYCLES DATA (as of the date of this document):

Hours: _____Cycles: _____

IN WITNESS WHEREOF, Lessee and Lessor have, by their duly authorized representatives, executed this Aircraft Delivery Receipt on the date set forth above.

LESSEE: LESSOR:

By: _________________________By:_________________________

Title: _________________________Title:_________________________

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EX-31.1

EXHIBIT 31.1

CERTIFICATION

I, Randy A. Foutch, certify that:

1. I have reviewed this Quarterly Report on Form 10-Q of Laredo Petroleum, 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 officer 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 officer 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: November 6, 2018
	/s/ Randy A. Foutch
	Randy A. Foutch
	Chairman and Chief Executive Officer

EX-31.2

EXHIBIT 31.2

CERTIFICATION

I, Richard C. Buterbaugh, certify that:

1. I have reviewed this Quarterly Report on Form 10-Q of Laredo Petroleum, 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 officer 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 officer 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: November 6, 2018
	/s/ Richard C. Buterbaugh
	Richard C. Buterbaugh
	Executive Vice President and Chief 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

Pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, Randy A. Foutch, Chairman and Chief Executive Officer of Laredo Petroleum, Inc. (the "Company"), and Richard C. Buterbaugh, Executive Vice President and Chief Financial Officer of the Company, certify that, to their knowledge:

(1) the Quarterly Report on Form 10-Q of the Company for the period ending September 30, 2018, as filed with the Securities and Exchange Commission on the date hereof (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.

November 6, 2018
	/s/ Randy A. Foutch
	Randy A. Foutch
	Chairman and Chief Executive Officer

November 6, 2018
	/s/ Richard C. Buterbaugh
	Richard C. Buterbaugh
	Executive Vice President and Chief Financial Officer

XML

Document and Entity Information - shares	9 Months Ended
	Sep. 30, 2018	Nov. 01, 2018
Document and Entity Information [Abstract]
Entity Registrant Name	Laredo Petroleum, Inc.
Entity Central Index Key	0001528129
Document Type	10-Q
Document Period End Date	Sep. 30, 2018
Amendment Flag	false
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Entity Common Stock, Shares Outstanding		233,882,020
Document Fiscal Year Focus	2018
Document Fiscal Period Focus	Q3
Entity Emerging Growth Company	false
Entity Small Business	false

XML

Consolidated balance sheets - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017
Current assets:
Cash and cash equivalents	$ 50,407	$ 112,159
Accounts receivable, net	117,581	100,645
Derivatives	3,074	6,892
Other current assets	18,465	15,686
Total current assets	189,527	235,382
Oil and natural gas properties, full cost method:
Evaluated properties	6,589,327	6,070,940
Unevaluated properties not being depleted	147,690	175,865
Less accumulated depletion and impairment	(4,798,527)	(4,657,466)
Oil and natural gas properties, net	1,938,490	1,589,339
Midstream service assets, net	132,415	138,325
Other fixed assets, net	42,264	40,721
Property and equipment, net	2,113,169	1,768,385
Derivatives	0	3,413
Other noncurrent assets, net	17,078	16,109
Total assets	2,319,774	2,023,289
Current liabilities:
Accounts payable and accrued liabilities	86,637	58,341
Accrued capital expenditures	38,188	82,721
Undistributed revenue and royalties	53,239	37,852
Derivatives	44,060	22,950
Other current liabilities	37,145	75,555
Total current liabilities	259,269	277,419
Long-term debt, net	963,191	791,855
Derivatives	20,945	384
Asset retirement obligations	55,684	53,962
Other noncurrent liabilities	5,573	134,090
Total liabilities	1,304,662	1,257,710
Commitments and contingencies
Stockholders' equity:
Preferred stock, $0.01 par value, 50,000,000 shares authorized and zero issued as of September 30, 2018 and December 31, 2017	0	0
Common stock, $0.01 par value, 450,000,000 shares authorized and 233,957,811 and 242,521,143 issued and outstanding as of September 30, 2018 and December 31, 2017, respectively	2,340	2,425
Additional paid-in capital	2,365,740	2,432,262
Accumulated deficit	(1,352,968)	(1,669,108)
Total stockholders' equity	1,015,112	765,579
Total liabilities and stockholders' equity	$ 2,319,774	$ 2,023,289

XML

Consolidated balance sheets (Parenthetical) - $ / shares	Sep. 30, 2018	Dec. 31, 2017
Statement of Financial Position [Abstract]
Preferred stock par value (in dollars per share)	$ 0.01	$ 0.01
Preferred stock authorized (in shares)	50,000,000	50,000,000
Preferred stock issued (in shares)	0	0
Common stock par value (in dollars per share)	$ 0.01	$ 0.01
Common stock authorized (in shares)	450,000,000	450,000,000
Common stock issued (in shares)	233,957,811	242,521,143
Common stock outstanding (in shares)	233,957,811	242,521,143

XML

Consolidated statements of operations - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Revenues:
Total revenues	$ 279,746	$ 205,818	$ 890,488	$ 581,825
Costs and expenses:
Lease operating expenses	23,873	19,594	68,466	56,690
Production and ad valorem taxes	14,015	9,558	38,232	26,811
General and administrative	23,397	25,000	74,956	72,605
Depletion, depreciation and amortization	55,963	41,212	152,278	113,327
Other operating expenses	1,114	1,443	3,341	3,906
Total costs and expenses	175,336	145,366	598,119	417,986
Operating income	104,410	60,452	292,369	163,839
Non-operating income (expense):
Gain (loss) on derivatives, net	(32,245)	(27,441)	(69,211)	38,127
Income from equity method investee (see Note 3.c)	0	2,371	0	7,910
Interest expense	(14,845)	(23,697)	(42,787)	(69,590)
Other (expense) income	(267)	333	629	527
Loss on disposal of assets, net	(616)	(991)	(4,591)	(400)
Non-operating expense, net	(47,973)	(49,425)	(115,960)	(23,426)
Income before income taxes	56,437	11,027	176,409	140,413
Income tax benefit (expense):
Current	381	0	381	0
Deferred	(1,768)	0	(1,768)	0
Total income tax expense:	(1,387)	0	(1,387)	0
Net income	$ 55,050	$ 11,027	$ 175,022	$ 140,413
Net income per common share:
Basic (in dollars per share)	$ 0.24	$ 0.05	$ 0.75	$ 0.59
Diluted (in dollars per share)	$ 0.24	$ 0.05	$ 0.75	$ 0.57
Weighted-average common shares outstanding:
Basic (in shares)	230,605	239,306	233,228	239,017
Diluted (in shares)	231,639	244,887	234,207	244,693
Oil sales
Revenues:
Total revenues	$ 160,007	$ 110,194	$ 469,972	$ 313,875
NGL sales
Revenues:
Total revenues	50,814	27,700	115,979	68,329
Natural gas sales
Revenues:
Total revenues	15,043	19,664	45,908	55,927
Transportation and marketing expenses
Costs and expenses:
Cost of goods and services sold	5,036	0	6,570	0
Midstream service revenues
Revenues:
Total revenues	2,255	2,446	6,590	8,148
Costs and expenses:
Cost of goods and services sold	728	1,174	1,824	2,986
Sales of purchased oil
Revenues:
Total revenues	51,627	45,814	252,039	135,546
Costs and expenses:
Cost of goods and services sold	$ 51,210	$ 47,385	$ 252,452	$ 141,661

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Consolidated statement of stockholders' equity - USD ($) shares in Thousands, $ in Thousands	Total	Common Stock	Additional paid-in capital	Treasury Stock (at cost)	Accumulated deficit
Increase (Decrease) in Stockholders' Equity
Adjustment to the beginning balance of accumulated deficit upon adoption of ASC 606 (see Note 4.a) | Accounting Standards Update 2014-09	$ 141,118				$ 141,118
Balance, beginning of period (in shares) at Dec. 31, 2017		242,521		0
Balance, beginning of period at Dec. 31, 2017	765,579	$ 2,425	$ 2,432,262	$ 0	(1,669,108)
Increase (Decrease) in Stockholders' Equity
Restricted stock awards (in shares)		3,248
Restricted stock awards	0	$ 33	(33)
Restricted stock forfeitures (in shares)		(266)
Restricted stock forfeitures	0	$ (3)	3
Share repurchases (in shares)				11,049
Share repurchases	(97,055)			$ (97,055)
Vested stock exchanged for tax withholding (in shares)				517
Vested stock exchanged for tax withholding	(4,411)			$ (4,411)
Retirement of treasury stock (in shares)		(11,566)		(11,566)
Retirement of treasury stock	0	$ (115)	(101,351)	$ 101,466
Exercise of stock options (in shares)		21
Exercise of stock options	86		86
Stock-based compensation	34,773		34,773
Net income	175,022				175,022
Balance, end of period (in shares) at Sep. 30, 2018		233,958		0
Balance, end of period at Sep. 30, 2018	$ 1,015,112	$ 2,340	$ 2,365,740	$ 0	$ (1,352,968)

XML

Consolidated statements of cash flows - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017
Cash flows from operating activities:
Net income	$ 175,022	$ 140,413
Adjustments to reconcile net income to net cash provided by operating activities:
Deferred income tax expense	1,768	0
Depletion, depreciation and amortization	152,278	113,327
Non-cash stock-based compensation, net	28,748	26,877
Mark-to-market on derivatives:
(Gain) loss on derivatives, net	69,211	(38,127)
Settlements (paid) received for matured derivatives, net	(5,943)	34,791
Settlements received for early terminations of derivatives, net	0	4,234
Change in net present value of derivative deferred premiums	564	199
Premiums paid for derivatives	(14,930)	(13,542)
Amortization of debt issuance costs	2,484	3,132
Income from equity method investee (see Note 3.c)	0	(7,910)
Other, net	9,290	3,445
Increase in accounts receivable	(18,591)	(2,973)
Increase in other current assets	(6,479)	(3,143)
Decrease (increase) in other noncurrent assets	346	(77)
Increase in accounts payable and accrued liabilities	28,296	11,575
Increase in undistributed revenues and royalties	15,387	6,384
Decrease in other current liabilities	(28,298)	(6,264)
Decrease in other noncurrent liabilities	(625)	(290)
Net cash provided by operating activities	408,528	272,051
Cash flows from investing activities:
Acquisitions of oil and natural gas properties	(16,340)	0
Capital expenditures:
Oil and natural gas properties	(522,470)	(381,165)
Midstream service assets	(5,764)	(11,680)
Other fixed assets	(5,945)	(3,604)
Investment in equity method investee (see Note 3.c)	0	(24,572)
Proceeds from disposition of equity method investee, net of selling costs (see Note 3.c)	1,655	0
Proceeds from dispositions of capital assets, net of selling costs	12,433	64,128
Net cash used in investing activities	(536,431)	(356,893)
Cash flows from financing activities:
Borrowings on Senior Secured Credit Facility	190,000	155,000
Payments on Senior Secured Credit Facility	(20,000)	(70,000)
Share repurchases	(97,055)	0
Vested stock exchanged for tax withholding	(4,411)	(7,638)
Proceeds from exercise of stock options	86	358
Payments for debt issuance costs	(2,469)	(4,732)
Net cash provided by financing activities	66,151	72,988
Net decrease in cash and cash equivalents	(61,752)	(11,854)
Cash and cash equivalents, beginning of period	112,159	32,672
Cash and cash equivalents, end of period	$ 50,407	$ 20,818

XML

Organization and basis of presentation

9 Months Ended

Sep. 30, 2018

Accounting Policies [Abstract]

Organization and basis of presentation

Organization and basis of presentation

a.Organization

Laredo Petroleum, Inc. ("Laredo"), together with its wholly-owned subsidiaries, Laredo Midstream Services, LLC ("LMS") and Garden City Minerals, LLC ("GCM"), is an independent energy company focused on the acquisition, exploration and development of oil and natural gas properties, and midstream and marketing services, primarily in the Permian Basin of West Texas. LMS and GCM (together, the "Guarantors") guarantee all of Laredo's debt instruments. In these notes, the "Company" refers to Laredo, LMS and GCM collectively, unless the context indicates otherwise. All amounts, dollars and percentages presented in these unaudited consolidated financial statements and the related notes are rounded and, therefore, approximate.

b.Basis of presentation

The accompanying unaudited consolidated financial statements were derived from the historical accounting records of the Company and reflect the historical financial position, results of operations and cash flows for the periods described herein. The accompanying unaudited consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States of America ("GAAP"). All material intercompany transactions and account balances have been eliminated in the consolidation of accounts.

The accompanying unaudited consolidated financial statements have not been audited by the Company's independent registered public accounting firm, except that the consolidated balance sheet as of December 31, 2017 is derived from audited consolidated financial statements. In the opinion of management, the accompanying unaudited consolidated financial statements reflect all necessary adjustments to present fairly the Company's financial position as of September 30, 2018, results of operations for the three and nine months ended September 30, 2018 and 2017 and cash flows for the nine months ended September 30, 2018 and 2017.

Certain disclosures have been condensed or omitted from these unaudited consolidated financial statements. Accordingly, these unaudited consolidated financial statements should be read in conjunction with the audited consolidated financial statements and notes thereto included in the 2017 Annual Report.

Significant accounting policies

See Note 2 "Basis of presentation and significant accounting policies" in the 2017 Annual Report for discussion of significant accounting policies.

Use of estimates in the preparation of interim unaudited consolidated financial statements

The preparation of the accompanying unaudited consolidated financial statements in conformity with GAAP requires management to make estimates and assumptions about future events. These estimates and the underlying assumptions affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Although management believes these estimates are reasonable, actual results could differ.

For further information regarding the estimates and assumptions, see Note 2.b "Use of estimates in the preparation of consolidated financial statements" in the 2017 Annual Report. Furthermore, see Note 7.c for a discussion of estimates pertaining to the Company's 2018 performance share awards.

Reclassifications

Certain amounts in the accompanying unaudited consolidated financial statements have been reclassified to conform to the 2018 presentation. These reclassifications had no impact on previously reported total assets, total liabilities, net income, stockholders' equity or total operating, investing or financing cash flows.

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Recently issued or adopted accounting pronouncements

9 Months Ended

Sep. 30, 2018

New Accounting Pronouncements and Changes in Accounting Principles [Abstract]

Recently issued or adopted accounting pronouncements

Recently issued or adopted accounting pronouncements

The Company considers the applicability and impact of all accounting standard updates ("ASU") issued by the Financial Accounting Standards Board ("FASB") to the FASB Accounting Standards Codification ("ASC"). The discussion of the ASUs and a final rule issued by the SEC listed below were determined to be meaningful to the Company's unaudited consolidated financial statements and/or footnotes during the nine months ended September 30, 2018.    

a.    Revenue recognition

On January 1, 2018, the Company adopted ASC 606, Revenue from Contracts with Customers ("ASC 606"), using the modified retrospective approach of adoption. ASC 606 supersedes previous revenue recognition requirements in ASC 605, Revenue Recognition ("ASC 605"), and includes a five-step revenue recognition model to depict the transfer of goods or services to customers in an amount that reflects the consideration to which the Company expects to be entitled in exchange for those goods or services. In addition, the new standard requires significantly expanded disclosures related to the nature, timing, amount and uncertainty of revenue and cash flows arising from contracts with customers. See Note 4 for further discussion of the ASC 606 adoption impact on the Company's unaudited consolidated financial statements and the Company's revenue recognition policies.     

b.    Leases

In February 2016, the FASB issued new guidance in ASC 842, Leases ("ASC 842"), which will supersede the current guidance in ASC 840, Leases ("ASC 840"). The core principle of the new guidance is that a lessee should recognize in the statement of financial position a liability to make lease payments and a right-of-use asset representing its right to use the underlying asset for the lease term for leases currently classified as operating leases. For leases with a term of 12 months or less, a lessee is permitted to make an accounting policy election, by class of underlying asset, not to recognize lease assets and lease liabilities. In January 2018, the FASB issued new guidance in ASC 842 to provide an optional transition practical expedient to not evaluate existing or expired land easements that were not previously accounted for as leases under ASC 840.

In July 2018, the FASB issued new guidance in ASC 842 to provide entities with an additional (and optional) transition method to adopt the new leases standard. Under this new transition method, an entity initially applies the new leases standard at the adoption date and recognizes a cumulative-effect adjustment to the opening balance of retained earnings in the period of adoption. Consequently, an entity's reporting for the comparative periods presented in the financial statements in which it adopts the new leases standard will continue to be in accordance with ASC 840. An entity that elects this transition method must provide the required ASC 840 disclosures for all periods that continue to be reported in accordance with ASC 840.

The amendments in these ASUs are effective for fiscal years beginning after December 15, 2018, including interim periods within those fiscal years. Early adoption is permitted. The primary effect on the Company's consolidated financial statements will be to record assets and obligations for contracts currently recognized as operating leases with a term greater than 12 months and to evaluate operating leases with a term less than or equal to 12 months for accounting policy election. The Company has a team, including third-party consultants, to implement the standard and is implementing the software that will be used to track and account for lease activity. The Company anticipates that the adoption and implementation of ASC 842 will result in a material increase in assets and liabilities on the consolidated balance sheet but will not result in a material impact to the consolidated statement of operations. The estimate of the dollar value impact of the adoption is on-going.

The Company has made certain accounting policy decisions including that it plans to adopt the short-term lease recognition exemption, accounting for certain asset classes at a portfolio level, and establishing a balance sheet recognition capitalization threshold. The transition will utilize the modified retrospective approach to adopting the new standard that will be applied at the beginning of the period adopted (January 1, 2019). The Company will utilize the transition package of expedients to leases that commenced before the effective date. The Company expects for certain lessee asset classes to elect the practical expedient and not separate lease and non-lease components. For these asset classes, the agreements will be accounted for as a single lease component.

c.    Business combinations

In January 2017, the FASB issued new guidance in ASC 805, Business Combinations, to clarify the definition of a business with the objective of adding guidance to assist entities with evaluating whether transactions should be accounted for as acquisitions (or disposals) of assets or businesses. The amendments in this ASU provide a screen to determine when a set of assets and activities is not a business. The screen requires that when substantially all of the fair value of the gross assets acquired (or disposed of) is concentrated in a single identifiable asset or a group of similar identifiable assets, the set is not a business. If the screen is not met, the amendments in this ASU require that to be considered a business, a set must include, at a minimum, an input and a substantive process that, together, significantly contribute to the ability to create an output.

The primary effect of adoption of this ASU is that, depending on the facts and circumstances of each transaction, more transactions could be accounted for as acquisitions of assets. The Company adopted this ASU on January 1, 2018 on a prospective basis, and the adoption did not have an effect on its unaudited consolidated financial statements. See Note 3.a for discussion of the Company's 2018 acquisitions of evaluated and unevaluated oil and natural gas properties, which were accounted for as asset acquisitions under this ASU.

d.    Fair value measurements

In August 2018, the FASB issued new guidance in ASC 820, Fair Value Measurement, to modify disclosure requirements. Of the amendments in the ASU, the below items affected the Company's fair value measurement disclosures in Note 9. Removed disclosure requirements that should be applied retrospectively to all periods presented are: (i) the amount of and reasons for transfers between Level 1 and Level 2 of the fair value hierarchy, (ii) the policy for timing of transfers between levels and (iii) the valuation processes for Level 3 fair value measurements. A modified disclosure requirement that should be applied prospectively is to clarify that the measurement uncertainty disclosure communicates information about the uncertainty in measurement as of the reporting date. A new disclosure requirement that should be applied prospectively is to disclose the range and weighted-average of significant unobservable inputs used to develop Level 3 fair value measurements. The Company has elected to early adopt this guidance upon the issuance of the ASU and has modified its disclosures accordingly in this Quarterly Report.

e.    SEC disclosure update and simplification

In August 2018, the SEC issued Final Rule Release No. 33-10532, Disclosure Update and Simplification, which amends various SEC disclosure requirements that they have determined to be redundant, duplicative, overlapping, outdated or superseded. The amendments also extend the annual disclosure requirement of presenting the changes in stockholders' equity to interim periods. An analysis of changes in stockholders’ equity will now be required for the current and comparative year-to-date interim periods. The Company has incorporated certain aspects of the final rule in this Quarterly Report and will complete the implementation of the final rule in the fourth quarter of 2018.

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Acquisitions and divestitures

9 Months Ended

Sep. 30, 2018

Business Combinations And Disposal Groups [Abstract]

Acquisitions and divestitures

Acquisitions and divestitures

a.2018 Acquisitions of evaluated and unevaluated oil and natural gas properties

During the nine months ended September 30, 2018, through multiple transactions, the Company acquired 895 net acres of additional leasehold interests and working interests in 47 producing horizontal and vertical wells in Glasscock County, Texas for an aggregate purchase price of $16.3 million, net of post-closing adjustments. These acquisitions were accounted for as asset acquisitions.

b.2018 Divestitures of evaluated and unevaluated oil and natural gas properties and midstream service assets

During the nine months ended September 30, 2018, through multiple transactions, the Company completed the sale of 3,070 net acres and working interests in 24 producing vertical and horizontal wells and associated midstream service assets in Glasscock County and Howard County in Texas to third-party buyers for an aggregate sales price of $12.0 million, net of post-closing adjustments. Of this amount, $11.5 million, net of post-closing adjustments, was recorded as adjustments to oil and natural gas properties pursuant to the rules governing full cost accounting. A loss of $1.0 million from the sale of the associated midstream service assets was included in the line item "Loss on disposal of assets, net" in the unaudited consolidated statements of operations. Effective at the closings, the operations and cash flows of these oil and natural gas properties and midstream service assets were eliminated from the ongoing operations of the Company, and the Company has no continuing involvement in the properties. These divestitures did not represent a strategic shift and will not have a major effect on the Company's future operations or financial results.

c.2017 Medallion sale

Medallion Gathering & Processing, LLC, a Texas limited liability company formed on October 12, 2012, which, together with its wholly-owned subsidiaries (collectively, "Medallion"), was established for the purpose of developing midstream solutions and providing midstream infrastructure to bring oil to market from the Midland Basin. Prior to the Medallion Sale (defined below), LMS held 49% of Medallion's ownership units. LMS and the third-party 51% interest-holder agreed that the voting rights of Medallion, the profit and loss sharing and the additional capital contribution requirements would be equal to the ownership unit percentage held. Additionally, Medallion required a super-majority vote of 75% for many key operating and business decisions. The Company determined that Medallion was a variable interest entity ("VIE"). However, LMS was not considered to be the primary beneficiary of the VIE because LMS did not have the power to direct the activities that most significantly affected Medallion's economic performance. As such, prior to the Medallion Sale, Medallion was accounted for under the equity method of accounting. The Company's proportionate share of Medallion's net income is reflected in the unaudited consolidated statements of operations on the "Income from equity method investee" line item.

On October 30, 2017, LMS, together with Medallion Midstream Holdings, LLC, which is owned and controlled by an affiliate of the third-party interest-holder, The Energy & Minerals Group, completed the sale of 100% of the ownership interests in Medallion to an affiliate of Global Infrastructure Partners ("GIP") for cash consideration of $1.825 billion (the "Medallion Sale"). LMS' net cash proceeds for its 49% ownership interest in Medallion in 2017 were $829.6 million, before post-closing adjustments and taxes, but after deduction of its proportionate share of fees and other expenses associated with the Medallion Sale. On February 1, 2018, closing adjustments were finalized and LMS received additional net cash of $1.7 million for total net cash proceeds before taxes of $831.3 million. The proceeds were used to pay borrowings on the Senior Secured Credit Facility in full, to redeem the May 2022 Notes (as defined below) and for working capital purposes. The Medallion Sale closed pursuant to the membership interest purchase and sale agreement, which provides for potential post-closing additional cash consideration that is structured based on GIP's realized profit at exit. There can be no assurance as to when and whether the additional consideration will be paid. The Medallion Sale did not represent a strategic shift and will not have a major effect on the Company's future operations or financial results.

LMS has a Transportation Services Agreement (the "TA") with a wholly-owned subsidiary of Medallion under which LMS receives firm transportation of the Company's crude oil production from Reagan County and Glasscock County in Texas to Colorado City, Texas that continues to be in effect after the Medallion Sale. Historically, the Company's crude oil purchasers have fulfilled the commitment by transporting crude oil, purchased from the Company, under the TA, as agent. As a result of the Company's continuing involvement with Medallion by guaranteeing cash flows under the TA, the Company recorded a deferred gain in the amount of its maximum exposure to loss related to such guarantees that would have been amortized over the TA's firm commitment transportation term through 2024 had the Company not adopted new revenue recognition guidance on January 1, 2018. The deferred gain is included in the unaudited consolidated balance sheets in each of the "Other current liabilities" and "Other noncurrent liabilities" line items as of December 31, 2017. See Note 4.a for discussion of the impact to the deferred gain upon the adoption of ASC 606.

d.2017 Divestiture of evaluated and unevaluated oil and natural gas properties

In January 2017, the Company completed the sale of 2,900 net acres and working interests in 16 producing vertical wells in the Midland Basin to a third-party buyer for a purchase price of $59.7 million. After transaction costs reflecting an economic effective date of October 1, 2016, the proceeds were $59.5 million, net of working capital and post-closing adjustments. A significant portion of these proceeds was used to pay down borrowings on the Senior Secured Credit Facility. The purchase price was recorded as an adjustment to oil and natural gas properties pursuant to the rules governing full cost accounting. Effective at closing, the operations and cash flows of these oil and natural gas properties were eliminated from the ongoing operations of the Company, and the Company has no continuing involvement in the properties. This divestiture did not represent a strategic shift and will not have a major effect on the Company's future operations or financial results.

e.Exchange of unevaluated oil and natural gas properties

From time to time, the Company exchanges undeveloped acreage with third parties. The exchanges are recorded at fair value and the difference is accounted for as an adjustment of capitalized costs with no gain or loss recognized pursuant to the rules governing full cost accounting, unless such adjustment would significantly alter the relationship between capitalized costs and proved reserves of oil, NGL and natural gas.

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Revenue recognition

9 Months Ended

Sep. 30, 2018

Revenue from Contract with Customer [Abstract]

Revenue recognition

Revenue recognition

a.Impact of ASC 606 adoption

Upon adoption of ASC 606 on January 1, 2018, for the three and nine months ended September 30, 2018, the Company reclassified certain firm transportation payments on excess pipeline capacity and other contractual penalties due to customers, historically included in the "Other operating expenses" line item in the unaudited consolidated statements of operations, and netted them with the revenue stream from which they derive as these payments to customers do not relate to the provision of a distinct good or service to the customer. In addition, there was an impact upon adoption related to the treatment of the gain on the Medallion Sale.

The impact of the adoption of ASC 606 on the results of operations for the periods presented is as follows:

	Three months ended September 30, 2018							Nine months ended September 30, 2018
(in thousands)	As computed under ASC 605		As reported under ASC 606		Increase/(decrease)			As computed under ASC 605		As reported under ASC 606		Increase/(decrease)
Revenues:
Oil sales	$	160,246	$	160,007	$	(239	)	$	472,496	$	469,972	$	(2,524	)
NGL sales	$	50,814	$	50,814	$	—		$	115,979	$	115,979	$	—
Natural gas sales	$	15,043	$	15,043	$	—		$	45,908	$	45,908	$	—
Costs and expenses:
Other operating expenses	$	1,353	$	1,114	$	(239	)	$	5,865	$	3,341	$	(2,524	)
Net income	$	55,050	$	55,050	$	—		$	175,022	$	175,022	$	—

At December 31, 2017, the Medallion Sale was accounted for under the real estate guidance in ASC 360-20, Property, Plant, and Equipment ("ASC 360-20"), and the Company's maximum exposure to loss associated with future commitments under the TA was $141.1 million that was not recorded in the Company's unaudited consolidated balance sheets. Under ASC 360-20, as a result of the Company's continuing involvement with Medallion by guaranteeing cash flows under the TA, the Company recorded a deferred gain in the amount of its maximum exposure to loss related to such guarantees. This deferred gain would have been amortized over the TA's firm commitment transportation term through 2024 had the Company not adopted ASC 606 on January 1, 2018. See Note 3.c for further discussion of the Medallion Sale and the TA.

Upon the adoption of ASC 606, the guidance in ASC 360-20 was superseded by ASC 860, Transfers and Servicing ("ASC 860"). The Medallion Sale is within the scope of ASC 860 and qualifies for sale accounting and recognition of the previously deferred gain because as of the date of the Medallion Sale (i) the Company transferred and legally isolated its full interests in Medallion to GIP, (ii) GIP received the right to pledge or exchange Medallion ownership interests at its full discretion and (iii) the Company did not have effective control over Medallion. Therefore, the deferred gain of $141.1 million was recognized as an adjustment to the beginning balance of accumulated deficit, presented in the unaudited consolidated statements of stockholders' equity, in accordance with the modified retrospective approach of adoption.

b.Revenue recognition

Oil, NGL and natural gas revenues are generally recognized at the point in time that control of the product is transferred to the customer. Midstream service revenues are generated through fees for products and services that need to be delivered by midstream infrastructure, including oil and liquids-rich natural gas gathering services as well as rig fuel, gas lift and water delivery, recycling and takeaway (collectively, "Midstream Services") and are recognized over time as the customer benefits from these services when provided. A more detailed summary of the underlying contracts that give rise to the Company's revenue and method of recognition is included below.

Oil sales and sales of purchased oil

Under its oil sales contracts, the Company sells produced or purchased oil at the delivery point specified in the contract and collects an agreed-upon index price, net of pricing differentials. The delivery point may be at the wellhead, the inlet of the purchaser's pipeline or nominated pipeline or the Company's truck unloading facility. At the delivery point, the purchaser typically takes custody, title and risk of loss of the product and, therefore, control as defined under ASC 606 typically passes at the delivery point. The Company recognizes revenue at the net price received when control transfers to the purchaser.

From time to time, the Company engages in transactions in which it sells oil at the lease and subsequently repurchases the same volume of oil from that customer at a downstream delivery point under a separate agreement ("Repurchase Agreement") for use in the sale to the final customer. The commercial reasoning for such transactions may vary. Where a Repurchase Agreement exists, the Company must evaluate whether the customer obtains control of the oil at the lease and therefore whether it is appropriate to recognize revenue for the lease sale. Where the Company has an obligation or a right to repurchase the oil, the customer does not obtain control of the oil because it is limited in its ability to direct the use of, and obtain substantially all of the remaining benefits from the oil even though it may have physical possession of the oil. If the Company repurchases the oil for less than the original selling price, such a transaction will be classified as a lease. If the Company repurchases the oil for equal to or more than the original selling price, then the transaction represents a financing arrangement unless there is only a short passage of time between the sale and repurchase, in which case any excess amount paid represents an expense associated with the sale of oil to the final customer. The Company recognizes such repurchase expense and any transportation expenses incurred for the delivery of the oil to the final customer in the "Transportation and marketing expenses" line item in the accompanying unaudited consolidated statements of operations.

Under certain of its customer contracts, the Company is subject to firm transportation payments on excess pipeline capacity and other contractual penalties if it fails to deliver contractual minimum volumes to its customers. Such amounts are recorded as a reduction to the transaction price as these amounts do not represent payments to the customer for distinct goods or services and instead relate specifically to the failure to perform under the specific customer contract. Such amounts are recorded as a reduction to the transaction price when payment is determined as probable, typically when such a deficiency occurs.

NGL and natural gas sales

Under its natural gas processing contracts, the Company delivers produced natural gas to a midstream processing entity at the wellhead or the inlet of the processing entity's system. The processing entity processes the natural gas, sells the resulting NGL and residue gas to third parties and pays the Company for the NGL and residue gas with deductions that may include gathering, compression, processing and transportation fees. In these scenarios, the Company evaluates whether it is the principal or the agent in the transaction. For existing contracts, the Company has concluded that it is the agent in the ultimate sale to the third party and the midstream processing entity is the principal and that we have transferred control of unprocessed natural gas to the midstream processing entity; therefore, the Company recognizes revenue based on the net amount of the proceeds received from the midstream processing entity who represents the Company's customer. If for future contracts the Company was to conclude that it was the principal with the ultimate third party being the customer, the Company would recognize revenue for those contracts on a gross basis, with gathering, compression, processing, and transportation fees presented as an expense.

Midstream Services

Revenue from oil throughput agreements is recognized based on a rate per barrel for volumes transported. Under the Company's oil throughput agreements, a volumetric deduction is taken from customer oil as a pipeline loss allowance. While these amounts represent non-cash consideration under ASC 606, such deductions are immaterial. Revenue from natural gas throughput agreements is recognized based on a rate per MMbtu for volumes transported. Revenue from water delivery, recycling and takeaway is recognized based on the volumes of water for which the services are provided at the applicable contractual rate.

Imbalances

The Company recognizes revenue for all oil, NGL and natural gas sold to purchasers regardless of whether the sales are proportionate to the Company's ownership interest in the property. Production imbalances are recognized as a liability to the extent an imbalance on a specific property exceeds the Company's share of remaining proved oil, NGL and natural gas reserves. The Company is also subject to natural gas pipeline imbalances, which are recorded as accounts receivable or payable at values consistent with contractual arrangements with the owner of the pipeline. The Company did not have any producer or pipeline imbalance positions as of September 30, 2018 or December 31, 2017.

Significant judgments

The Company engages in various types of transactions in which unaffiliated midstream entities process the Company's liquids-rich natural gas and, in some scenarios, subsequently market resulting NGL and residue gas to third-party customers on the Company's behalf. These types of transactions require judgment to determine whether the Company is the principal or the agent in the contract and, as a result, whether revenues are recorded gross or net. For existing contracts, the Company has determined that it serves as the agent in the sale of products under certain natural gas processing and marketing agreements with unaffiliated midstream entities in accordance with the control model in ASC 606. As a result, the Company presents revenue on a net basis for amounts expected to be received from third-party customers through the marketing process, with expenses and deductions incurred subsequent to control of the product(s) transferring to the unaffiliated midstream entity being netted against revenue.

Transaction price allocated to remaining performance obligations

A significant number of the Company's product sales are short-term in nature with a contract term of one year or less. For those contracts, the Company has utilized the practical expedient in ASC 606-10-50-14 that exempts the Company from disclosure of the transaction price allocated to remaining performance obligations if the performance obligation is part of a contract that has an original expected duration of one year or less.

For the Company's product sales that have a contract term greater than one year and for its Midstream Services, the Company has utilized the practical expedient in ASC 606-10-50-14A that states that it is not required to disclose the transaction price allocated to remaining performance obligations if the variable consideration is allocated entirely to a wholly unsatisfied performance obligation. Under the Company's product sales contracts, each unit of product generally represents a separate performance obligation; therefore, future volumes are wholly unsatisfied. Under the Midstream Services contracts each unit of service represents a separate performance obligation and therefore performance obligations in respect of future services are wholly unsatisfied.

Contract balances

Under the Company's customer contracts, invoicing occurs once the Company's performance obligations have been satisfied, at which point payment is unconditional. Accordingly, the Company's contracts do not give rise to contract assets or liabilities under ASC 606.

Prior-period performance obligations

For sales of oil, NGL, natural gas and purchased oil, the Company records revenue in the month production is delivered to the purchaser. However, settlement statements and payment may not be received for 30 to 90 days after the date production is delivered and, as a result, the Company is required to estimate the amount of production that was delivered to the purchaser and the price that will be received for the sale of the product. The Company records the differences between estimates and the actual amounts received for product sales once payment is received from the purchaser. Such differences have historically not been significant. The Company uses knowledge of its properties, its properties' historical performance, spot market prices and other factors as the basis for these estimates. For the three and nine months ended September 30, 2018, revenue recognized related to performance obligations satisfied in prior reporting periods was not material.

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Property and equipment

9 Months Ended

Sep. 30, 2018

Property, Plant and Equipment [Abstract]

Property and equipment

Property and equipment

The following table presents the Company's property and equipment as of the dates presented:

(in thousands)	September 30, 2018			December 31, 2017
Evaluated oil and natural gas properties	$	6,589,327		$	6,070,940
Less accumulated depletion and impairment	(4,798,527		)	(4,657,466		)
Evaluated oil and natural gas properties, net	1,790,800			1,413,474
Unevaluated oil and natural gas properties not being depleted	147,690			175,865
Midstream service assets	171,740			171,427
Less accumulated depreciation and impairment	(39,325		)	(33,102		)
Midstream service assets, net	132,415			138,325
Depreciable other fixed assets	50,420			48,957
Less accumulated depreciation and amortization	(26,415		)	(23,150		)
Depreciable other fixed assets, net	24,005			25,807
Land	18,259			14,914
Total property and equipment, net	$	2,113,169		$	1,768,385

For the three months ended September 30, 2018 and 2017, depletion expense for the Company's evaluated oil and natural gas properties was $7.94 per barrel of oil equivalent ("BOE") sold and $6.80 per BOE sold, respectively. For the nine months ended September 30, 2018 and 2017, depletion expense for the Company's evaluated oil and natural gas properties was $7.67 per BOE sold and $6.57 per BOE sold, respectively.

The Company uses the full cost method of accounting for its oil and natural gas properties. Under this method, all acquisition, exploration and development costs, including certain employee-related costs incurred for the purpose of exploring for or developing oil and natural gas properties, are capitalized and depleted on a composite unit-of-production method based on proved oil, NGL and natural gas reserves. Such amounts include the cost of drilling and equipping productive wells, dry hole costs, lease acquisition costs, delay rentals and other costs related to such activities. Costs, including employee-related costs, associated with production and general corporate activities, are expensed in the period incurred. Sales of oil and natural gas properties, whether or not being depleted currently, are accounted for as adjustments of capitalized costs, with no gain or loss recognized, unless such adjustments would significantly alter the relationship between capitalized costs and proved reserves of oil, NGL and natural gas.

The following table presents capitalized employee-related costs for the periods presented:

	Three months ended September 30,				Nine months ended September 30,
(in thousands)	2018		2017		2018		2017
Capitalized employee-related costs	$	5,837	$	6,938	$	19,101	$	17,911

The Company excludes the costs directly associated with the acquisition and evaluation of unevaluated properties from the depletion calculation until it is determined whether or not proved reserves can be assigned to the properties. The Company capitalizes a portion of its interest costs to its unevaluated properties. Capitalized interest becomes a part of the cost of the unevaluated properties and is subject to depletion when proved reserves can be assigned to the associated properties. All items classified as unevaluated properties are assessed on a quarterly basis for possible impairment. The assessment includes consideration of the following factors, among others: intent to drill, remaining lease term, geological and geophysical evaluations, drilling results and activity, the assignment of evaluated reserves and the economic viability of development if proved reserves are assigned. During any period in which these factors indicate an impairment, the cumulative drilling costs incurred to date for such property and all or a portion of the associated leasehold costs are transferred to the full cost pool and are then subject to depletion.

The following table presents costs incurred in the acquisition, exploration and development of oil and natural gas properties, with asset retirement obligations included in evaluated property acquisition costs and development costs, for the periods presented:

	Three months ended September 30,				Nine months ended September 30,
(in thousands)	2018		2017		2018		2017
Property acquisition costs (see Note 3.a):							—
Evaluated	$	—	$	—	$	13,847	$	—
Unevaluated	—		—		2,790		—
Exploration costs	7,502		7,136		18,747		28,337
Development costs	139,748		160,359		467,582		397,255
Total costs incurred	$	147,250	$	167,495	$	502,966	$	425,592

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Debt

9 Months Ended

Sep. 30, 2018

Debt Disclosure [Abstract]

Debt

Debt

a.March 2023 Notes

On March 18, 2015, the Company completed an offering of $350.0 million in aggregate principal amount of 6 1/4% senior unsecured notes due 2023 (the "March 2023 Notes"). The March 2023 Notes will mature on March 15, 2023 and bear an interest rate of 6 1/4% per annum, payable semi-annually, in cash in arrears on March 15 and September 15 of each year, commencing September 15, 2015. The March 2023 Notes are fully and unconditionally guaranteed on a senior unsecured basis by LMS, GCM and certain of the Company's future restricted subsidiaries, subject to certain automatic customary releases, including the sale, disposition or transfer of all of the capital stock or of all or substantially all of the assets of a subsidiary guarantor to one or more persons that are not the Company or a restricted subsidiary, exercise of legal defeasance or covenant defeasance options or satisfaction and discharge of the applicable indenture, designation of a subsidiary guarantor as a non-guarantor restricted subsidiary or as an unrestricted subsidiary in accordance with the applicable indenture, release from guarantee under the Senior Secured Credit Facility, or liquidation or dissolution (collectively, the "Releases"). The Company may redeem, at its option, all or part of the March 2023 Notes at any time after March 15, 2018, at a price of 104.688% of face value with call premiums declining annually to 100% of face value on March 15, 2021 and thereafter plus accrued and unpaid interest to, but not including, the date of redemption.

b.January 2022 Notes

On January 23, 2014, the Company completed an offering of $450.0 million in aggregate principal amount of 5 5/8% senior unsecured notes due 2022 (the "January 2022 Notes"). The January 2022 Notes will mature on January 15, 2022 and bear an interest rate of 5 5/8% per annum, payable semi-annually, in cash in arrears on January 15 and July 15 of each year, commencing July 15, 2014. The January 2022 Notes are fully and unconditionally guaranteed on a senior unsecured basis by LMS, GCM and certain of the Company's future restricted subsidiaries, subject to certain Releases. The Company may redeem, at its option, all or part of the January 2022 Notes at any time after January 15, 2018, at a price of 102.813% of face value with call premiums declining annually to 100% of face value on January 15, 2020 and thereafter plus accrued and unpaid interest to, but not including, the date of redemption.

c.May 2022 Notes

On April 27, 2012, the Company completed an offering of $500.0 million in aggregate principal amount of 7 3/8% senior unsecured notes due 2022 (the "May 2022 Notes"). The May 2022 Notes were due to mature on May 1, 2022 and bore an interest rate of 7 3/8% per annum, payable semi-annually, in cash in arrears on May 1 and November 1 of each year, commencing November 1, 2012. The May 2022 Notes were fully and unconditionally guaranteed on a senior unsecured basis by LMS, GCM and certain of the Company's future restricted subsidiaries, subject to certain Releases.

On November 29, 2017 (the "May 2022 Notes Redemption Date"), utilizing a portion of the proceeds from the Medallion Sale, the entire $500.0 million outstanding principal amount of the May 2022 Notes was redeemed at a redemption price of 103.688% of the principal amount of the May 2022 Notes, plus accrued and unpaid interest up to, but not including, the May 2022 Notes Redemption Date. The Company recognized a loss on extinguishment of $23.8 million related to the difference between the redemption price and the net carrying amount of the extinguished May 2022 Notes.

d.Senior Secured Credit Facility

The Senior Secured Credit Facility matures on April 19, 2023, provided that if either the January 2022 Notes or March 2023 Notes have not been refinanced on or prior to the date (as applicable, the "Early Maturity Date") that is 90 days before their respective stated maturity dates, the Senior Secured Credit Facility will mature on such Early Maturity Date. As of September 30, 2018, the Senior Secured Credit Facility had a maximum credit amount of $2.0 billion, a borrowing base of $1.3 billion and an aggregate elected commitment of $1.2 billion, with $170.0 million outstanding and was subject to an interest rate of 3.44%. The Senior Secured Credit Facility contains both financial and non-financial covenants, all of which the Company was in compliance with as of September 30, 2018. Laredo is required to pay a commitment fee on the unused portion of the financial institutions' commitment of 0.375% to 0.5%, based on the ratio of outstanding revolving credit to the aggregate elected commitment under the Senior Secured Credit Facility. Additionally, the Senior Secured Credit Facility provides for the issuance of letters of credit, limited to the lesser of total capacity or $80.0 million. No letters of credit were outstanding as of September 30, 2018 or December 31, 2017. See Note 16 for discussion of items affecting the Senior Secured Credit Facility subsequent to September 30, 2018.

e.Long-term debt, net

The following table summarizes the net presentation of the Company's long-term debt and debt issuance costs on the unaudited consolidated balance sheets as of the dates presented:

	September 30, 2018							December 31, 2017
(in thousands)	Long-term debt		Debt issuance costs, net			Long-term debt, net		Long-term debt		Debt issuance costs, net			Long-term debt, net
January 2022 Notes	$	450,000	$	(3,254	)	$	446,746	$	450,000	$	(3,987	)	$	446,013
March 2023 Notes	350,000		(3,555		)	346,445		350,000		(4,158		)	345,842
Senior Secured Credit Facility(1)	170,000		—			170,000		—		—			—
Total	$	970,000	$	(6,809	)	$	963,191	$	800,000	$	(8,145	)	$	791,855

______________________________________________________________________________

(1) Debt issuance costs, net related to our Senior Secured Credit Facility of $7.4 million and $6.0 million as of September 30, 2018 and December 31, 2017, respectively, are reported in "Other assets, net" on the unaudited consolidated balance sheets.

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Stockholders' equity and stock-based compensation

9 Months Ended

Sep. 30, 2018

Equity [Abstract]

Stockholders' equity and stock-based compensation

Stockholders' equity and stock-based compensation

a.Share repurchase program

In February 2018, the Company's board of directors authorized a $200 million share repurchase program commencing in February 2018. The repurchase program expires in February 2020. Share repurchases under the share repurchase program may be made through a variety of methods, which may include open market purchases, privately negotiated transactions and block trades. The timing and actual number of share repurchases will depend upon several factors, including market conditions, business conditions, the trading price of the Company's common stock and the nature of other investment opportunities available to the Company. During the three months ended September 30, 2018, the Company repurchased 1,170,190 shares of common stock at a weighted-average price of $8.41 per common share for a total of $9.9 million under this program. During the nine months ended September 30, 2018, the Company repurchased 11,048,742 shares of common stock at a weighted-average price of $8.78 per common share for a total of $97.1 million under this program. All shares were retired upon repurchase.

b.Treasury stock

Treasury stock is recorded at cost, which includes incremental direct transaction costs, and is retired upon acquisition as a result from share repurchases under the share repurchase program or from the withholding of shares of stock to satisfy employee tax withholding obligations that arise upon the lapse of restrictions on their stock-based awards at the employees' election.

c.Stock-based compensation

The Company's Long-Term Incentive Plan (the "LTIP") provides for the granting of incentive awards in the form of restricted stock awards, stock option awards, performance share awards, performance unit awards and other awards. The LTIP provides for the issuance of up to 24,350,000 shares of Laredo's common stock.

The Company recognizes the fair value of stock-based compensation awards expected to vest over the requisite service period as a charge against earnings, net of amounts capitalized. The Company's stock-based compensation awards are accounted for as equity instruments and are included in the "General and administrative" line item in the unaudited consolidated statements of operations. The Company capitalizes a portion of stock-based compensation for employees who are directly involved in the acquisition, exploration or development of oil and natural gas properties into the full cost pool. Capitalized stock-based compensation is included in the "Evaluated properties" line item on the unaudited consolidated balance sheets.

Restricted stock awards

All service vesting restricted stock awards are treated as issued and outstanding in the accompanying unaudited consolidated financial statements. Per the award agreement terms, if an employee terminates employment prior to the restriction lapse date for reasons other than death or disability, the awarded shares are forfeited and canceled and are no longer considered issued and outstanding. If the employee's termination of employment is by reason of death or disability, all of the holder's restricted stock will automatically vest. Restricted stock awards granted to officers and employees vest in a variety of vesting schedules that mainly include (i) 33%, 33% and 34% per year beginning on the first anniversary of the grant date and (ii) fully on the first anniversary of the grant date. Beginning August 2017, stock awards granted to non-employee directors vest immediately on the grant date. Restricted stock awards granted to non-employee directors prior to August 2017 vested on the first anniversary of the grant date.

The following table reflects the restricted stock award activity for the nine months ended September 30, 2018:

(in thousands, except for weighted-average grant-date fair value)	Restricted stock awards		Weighted-average grant-date fair value (per award)
Outstanding as of December 31, 2017	3,169		$	12.81
Granted	3,248		$	8.42
Forfeited	(266	)	$	10.35
Vested(1)	(1,851	)	$	12.21
Outstanding as of September 30, 2018	4,300		$	9.90

_____________________________________________________________________________

(1) The total intrinsic value of vested restricted stock awards for the nine months ended September 30, 2018 was $16.1 million.

The Company utilizes the closing stock price on the grant date to determine the fair value of service vesting restricted stock awards. As of September 30, 2018, unrecognized stock-based compensation related to the restricted stock awards expected to vest was $26.5 million. Such cost is expected to be recognized over a weighted-average period of 1.87 years.

Stock option awards

Stock option awards granted under the LTIP vest and become exercisable in four equal installments on each of the four anniversaries of the grant date. As of September 30, 2018, the 2,577,205 outstanding stock option awards have a weighted-average exercise price of $12.66 and a weighted-average remaining contractual term of 6.37 years. There were de minimis exercises, forfeitures and cancellations of stock option awards during the nine months ended September 30, 2018. There were no grants of stock option awards during the nine months ended September 30, 2018.

The Company utilizes the Black-Scholes option pricing model to determine the fair value of stock option awards and recognizes the associated expense on a straight-line basis over the four-year requisite service period of the awards. Determining the fair value of equity-based awards requires judgment, including estimating the expected term that stock option awards will be outstanding prior to exercise and the associated expected volatility. As of September 30, 2018, unrecognized stock-based compensation related to stock option awards expected to vest was $5.0 million. Such cost is expected to be recognized over a weighted-average period of 1.67 years.

Performance share awards

Performance share awards, which the Company has determined are equity awards, are subject to a combination of market, performance and service vesting criteria. For awards with market criteria or portions of awards with market criteria, which include the RTSR Performance Percentage (as defined below), the ATSR Appreciation (as defined below) and the Company's total shareholder return ("TSR"), a Monte Carlo simulation prepared by an independent third party is utilized to determine the grant-date fair value and the associated expense is recognized on a straight-line basis over the three-year requisite service period of the awards. For portions of awards with performance criteria, which is the ROACE Percentage (as defined below), the grant-date fair value is equal to the Company's stock price on the grant date, and for each reporting period, the associated expense fluctuates and is trued-up based on an estimated probability of how many shares will be earned at the end of the three-year performance period. Any shares earned under performance share awards are expected to be issued in the first quarter following the completion of the requisite service period based on the achievement of certain market and performance criteria.    

The following table reflects the performance share award activity for the nine months ended September 30, 2018:

(in thousands, except for weighted-average grant-date fair value)	Performance share awards		Weighted-average grant-date fair value (per award)
Outstanding as of December 31, 2017	2,745		$	17.77
Granted(1)	1,389		$	9.22
Forfeited	(149	)	$	14.83
Vested(2)	(454	)	$	16.23
Outstanding as of September 30, 2018	3,531		$	14.55

______________________________________________________________________________

(1) The amount of stock potentially payable at the end of the performance period for the performance share awards granted on February 16, 2018 will be determined based on three criteria: (i) relative three-year total shareholder return comparing the Company's shareholder return to the shareholder return of the peer group specified in the award agreement ("RTSR Performance Percentage"), (ii) absolute three-year total shareholder return ("ATSR Appreciation") and (iii) three-year return on average capital employed ("ROACE Percentage"). The RTSR Performance Percentage, ATSR Appreciation and ROACE Percentage will be used to identify the "RTSR Factor," the "ATSR Factor" and the "ROACE Factor," respectively, which are used to compute the "Performance Multiple" and ultimately to determine the final number of shares associated with each performance share unit granted at the maturity date (with all partial shares rounded, as appropriate). In computing the Performance Multiple, the RTSR Factor is given a 25% weight, the ATSR Factor a 25% weight and the ROACE Factor a 50% weight. The $9.22 per unit grant-date fair value consists of a (i) $10.08 per unit grant-date fair value, determined utilizing a Monte Carlo simulation, for the combined (.25) RTSR Factor and (.25) ATSR Factor and (ii) $8.36 per unit grant-date fair value for the (.50) ROACE Factor determined based on the closing price of the Company's common stock on the New York Stock Exchange on February 16, 2018. These awards have a performance period of January 1, 2018 to December 31, 2020.

(2) The performance share awards granted on February 27, 2015 had a performance period of January 1, 2015 to December 31, 2017 and, as their performance criteria were not satisfied, resulted in a TSR modifier of 0% based on the Company finishing in the 36th percentile of its peer group for relative TSR. As such, the units were not converted into the Company's common stock during the first quarter of 2018.

As of September 30, 2018, unrecognized stock-based compensation related to the performance share awards expected to vest was $18.6 million. Such cost is expected to be recognized over a weighted-average period of 1.72 years.

The assumptions used to estimate the combined fair value for the (.25) RTSR Factor and the (.25) ATSR Factor for the market criteria portion of the performance share awards granted on the date presented are as follows:

	February 16, 2018
Risk-free interest rate(1)	2.34		%
Dividend yield	—		%
Expected volatility(2)	65.49		%
Laredo stock closing price on grant date	$	8.36
Combined fair value per performance share award for the (.25) RTSR Factor and the (.25) ATSR Factor(3)	$	10.08

______________________________________________________________________________

(1) The risk-free interest rate was derived using a term-matched zero-coupon yield derived from the U.S. Treasury constant maturities yield curve on the grant date.

(2) The Company utilized its own historical volatility in order to develop the expected volatility.

(3) The market criteria portion of the performance share award represents 50% of each of the amount of stock potentially payable, if any, and the grant-date fair value of the award.

Stock-based compensation expense

The following has been recorded to stock-based compensation expense for the periods presented:

	Three months ended September 30,						Nine months ended September 30,
(in thousands)	2018			2017			2018			2017
Restricted stock award compensation	$	6,001		$	5,422		$	19,332		$	16,856
Stock option award compensation	970			1,159			3,010			3,600
Performance share award compensation	3,689			4,255			12,431			12,063
Total stock-based compensation, gross	10,660			10,836			34,773			32,519
Less amounts capitalized in oil and natural gas properties	(1,927		)	(1,870		)	(6,025		)	(5,642		)
Total stock-based compensation, net	$	8,733		$	8,966		$	28,748		$	26,877

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Derivatives

9 Months Ended

Sep. 30, 2018

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Derivatives

Derivatives

Due to the inherent volatility in oil, NGL and natural gas prices, commodity transportation costs and differences in the prices of oil, NGL and natural gas between where the Company produces and where the Company sells such commodities, the Company engages in derivative transactions, such as puts, swaps, collars, basis swaps and, in the past, call spreads to hedge price risk associated with a portion of the Company's anticipated production.By removing a portion of the price volatility associated with future production, the Company expects to mitigate, but not eliminate, the potential effects of variability in cash flows from operations due to fluctuations in commodity prices, commodity transportation costs and differences in commodity prices between where the Company produces and where the Company sells its products.

Each put transaction has an established floor price. The Company pays its counterparty a premium, which can be paid at inception or deferred until settlement, to enter into the put transaction. When the settlement price is below the floor price, the counterparty pays the Company an amount equal to the difference between the settlement price and the floor price multiplied by the hedged contract volume. When the settlement price is at or above the floor price in an individual month in the contract period, the put option expires with no settlement for that particular month, except with regard to the deferred premium, if any.

Each swap transaction has an established fixed price. When the settlement price is below the fixed price, the counterparty pays the Company an amount equal to the difference between the settlement price and the fixed price multiplied by the hedged contract volume. When the settlement price is above the fixed price, the Company pays its counterparty an amount equal to the difference between the settlement price and the fixed price multiplied by the hedged contract volume.

Each collar transaction has an established price floor and ceiling. Depending on the terms, the Company may pay its counterparty a premium, which can be paid at inception or deferred until settlement. When the settlement price is below the price floor established by these collars, the counterparty pays the Company an amount equal to the difference between the settlement price and the price floor multiplied by the hedged contract volume. When the settlement price is above the price ceiling established by these collars, the Company pays its counterparty an amount equal to the difference between the settlement price and the price ceiling multiplied by the hedged contract volume. When the settlement price is between the price floor and price ceiling established by these collars in an individual month in the contract period, the collar expires with no settlement paid by either the Company or the counterparty for that particular month, except with regard to the deferred premium, if any.

Each basis swap transaction has an established fixed basis differential corresponding to two floating index prices. Depending on the difference of the two floating index prices in relationship to the fixed basis differential, the Company either receives an amount from its counterparty, or pays an amount to its counterparty, equal to the difference multiplied by the hedged contract volume.

Each call spread transaction has an established short call price and long call price. Depending on the terms, the counterparty may pay a premium to the Company to enter into the transaction. When the settlement price is above the short call price and less than or equal to the long call price, the Company pays its counterparty an amount equal to the difference between the settlement price and the short call price multiplied by the hedged contract volume. When the settlement price is above the long call price, the Company pays the counterparty an amount equal to the difference between the long call price and the short call price multiplied by the hedged contract volume. When the settlement price is at or below the short call price in an individual month in the contract period, the call option expires with no settlement paid by either the Company or the counterparty for that particular month, except with regard to the deferred premium, if any.

Other than the oil basis swaps, the Company's oil derivatives are settled based on the month's average daily NYMEX index price for the first nearby month of the West Texas Intermediate Light Sweet Crude Oil Futures Contract. The oil basis swaps are settled based on either (i) the differential between the Argus Americas Crude West Texas Intermediate ("WTI") index prices for WTI Midland-weighted average for the trade month and WTI Cushing-WTI formula basis for the trade month as compared to the basis swaps' fixed differential price or (ii) the differential between the Argus Americas Crude WTI Houston-weighted average price for the trade month and the WTI Midland-weighted average price for the trade month as compared to the basis swaps' fixed differential price. The Company's NGL derivatives are settled based on the month's average daily OPIS index price for Mont Belvieu Purity Ethane, TET and Non-TET Propane, Non-TET Normal Butane, Non-TET Isobutane and Non-TET Natural Gasoline. Other than the natural gas basis swaps, the Company's natural gas derivatives are settled based on the Inside FERC index price for West Texas WAHA for the calculation period. The natural gas basis swaps are settled based on the differential between the Inside FERC index price for West Texas WAHA for the calculation period and the NYMEX Henry Hub index price for the calculation period as compared to the basis swaps' fixed differential price.

During the nine months ended September 30, 2017, the Company completed a hedge restructuring by early terminating a swap that resulted in a termination amount to the Company of $4.2 million that was settled in full by applying the proceeds to pay the premium on one new collar entered into during the restructuring. The following details the derivative that was terminated:

	Aggregate volumes (Bbl)	Floor price ($/Bbl)		Ceiling price ($/Bbl)		Contract period
Oil swap	1,095,000	$	52.12	$	52.12	January 2018 - December 2018

The following table summarizes open positions as of September 30, 2018, and represents, as of such date, derivatives in place through December 2021 on annual production volumes:

	Remaining year 2018			Year 2019			Year 2020		Year 2021
Oil:
Puts:
Hedged volume (Bbl)	1,367,775			8,030,000			366,000		—
Weighted-average floor price ($/Bbl)	$	51.93		$	47.45		$	45.00	$	—
Swaps:
Hedged volume (Bbl)	—			657,000			695,400		—
Weighted-average price ($/Bbl)	$	—		$	53.45		$	52.18	$	—
Collars:
Hedged volume (Bbl)	1,030,400			—			1,134,600		912,500
Weighted-average floor price ($/Bbl)	$	41.43		$	—		$	45.00	$	45.00
Weighted-average ceiling price ($/Bbl)	$	60.00		$	—		$	76.13	$	71.00
Totals:
Total volume hedged with floor price (Bbl)	2,398,175			8,687,000			2,196,000		912,500
Weighted-average floor price ($/Bbl)	$	47.42		$	47.91		$	47.27	$	45.00
Total volume hedged with ceiling price (Bbl)	1,030,400			657,000			1,830,000		912,500
Weighted-average ceiling price ($/Bbl)	$	60.00		$	53.45		$	67.03	$	71.00
Basis Swaps:
WTI Midland to WTI Cushing:
Hedged volume (Bbl)	920,000			552,000			—		—
Weighted-average price ($/Bbl)	$	(0.56	)	$	(4.37	)	$	—	$	—
WTI Houston to WTI Midland:
Hedged volume (Bbl)	920,000			1,810,000			—		—
Weighted-average price ($/Bbl)	$	7.30		$	7.30		$	—	$	—
NGL:
Swaps - Purity Ethane:
Hedged volume (Bbl)	156,400			—			—		—
Weighted-average price ($/Bbl)	$	11.66		$	—		$	—	$	—
Swaps - Non-TET Propane:
Hedged volume (Bbl)	128,800			—			—		—
Weighted-average price ($/Bbl)	$	33.92		$	—		$	—	$	—
Swaps - Non-TET Normal Butane:
Hedged volume (Bbl)	46,000			—			—		—
Weighted-average price ($/Bbl)	$	38.22		$	—		$	—	$	—
Swaps - Non-TET Isobutane:
Hedged volume (Bbl)	18,400			—			—		—
Weighted-average price ($/Bbl)	$	38.33		$	—		$	—	$	—
Swaps - Non-TET Natural Gasoline:
Hedged volume (Bbl)	46,000			—			—		—
Weighted-average price ($/Bbl)	$	57.02		$	—		$	—	$	—
Total NGL volume hedged (Bbl)	395,600			—			—		—
TABLE CONTINUES ON NEXT PAGE

	Remaining year 2018			Year 2019			Year 2020			Year 2021
Natural gas:
Puts:
Hedged volume (MMBtu)	2,055,000			—			—			—
Weighted-average floor price ($/MMBtu)	$	2.50		$	—		$	—		$	—
Collars:
Hedged volume (MMBtu)	3,928,400			—			—			—
Weighted-average floor price ($/MMBtu)	$	2.50		$	—		$	—		$	—
Weighted-average ceiling price ($/MMBtu)	$	3.35		$	—		$	—		$	—
Totals:
Total volume hedged with floor price (MMBtu)	5,983,400			—			—			—
Weighted-average floor price ($/MMBtu)	$	2.50		$	—		$	—		$	—
Total volume hedged with ceiling price (MMBtu)	3,928,400			—			—			—
Weighted-average ceiling price ($/MMBtu)	$	3.35		$	—		$	—		$	—
Basis Swaps:
Hedged volume (MMBtu)	2,300,000			20,075,000			25,254,000			—
Weighted-average price ($/MMBtu)	$	(0.62	)	$	(1.05	)	$	(0.76	)	$	—

At each period end, the Company nets the fair value of derivatives by counterparty where the right of offset exists and reports this net basis on the "Derivatives" line items on the unaudited consolidated balance sheets as assets and/or liabilities. See Note 9.a for a summary of the fair value of derivatives on a gross basis. The Company's derivatives were not designated as hedges for accounting purposes. Accordingly, the changes in fair value are recognized in the unaudited consolidated statements of operations in the "Gain (loss) on derivatives, net" line item. Gains and losses on derivatives are included in cash flows from operating activities.

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Fair value measurements

9 Months Ended

Sep. 30, 2018

Fair Value Disclosures [Abstract]

Fair value measurements

Fair value measurements

See Note 10 "Fair value measurements" in the 2017 Annual Report for discussion on the Company's accounting policies for fair value measurements.

a.Fair value measurement on a recurring basis

The following tables summarize the Company's derivatives' fair value hierarchy by commodity and current and noncurrent assets and liabilities on a gross basis and the net presentation included in the "Derivatives" line items on the unaudited consolidated balance sheets as of the dates presented:

(in thousands)	Level 1		Level 2			Level 3			Total gross fair value			Amounts offset			Net fair value presented on the unaudited consolidated balance sheets
As of September 30, 2018:
Assets:
Current:
Oil derivatives	$	—	$	10,390		$	—		$	10,390		$	(10,390	)	$	—
NGL derivatives	—		—			—			—			—			—
Natural gas derivatives	—		13,002			—			13,002			(9,309		)	3,693
Oil derivative deferred premiums	—		—			—			—			—			—
Natural gas derivative deferred premiums	—		—			—			—			(619		)	(619		)
Noncurrent:
Oil derivatives	$	—	$	2,056		$	—		$	2,056		$	(2,056	)	$	—
NGL derivatives	—		—			—			—			—			—
Natural gas derivatives	—		474			—			474			(474		)	—
Oil derivative deferred premiums	—		—			—			—			—			—
Natural gas derivative deferred premiums	—		—			—			—			—			—
Liabilities:
Current:
Oil derivatives	$	—	$	(41,692	)	$	—		$	(41,692	)	$	10,390		$	(31,302	)
NGL derivatives	—		(4,807		)	—			(4,807		)	—			(4,807		)
Natural gas derivatives	—		233			—			233			9,309			9,542
Oil derivative deferred premiums	—		—			(17,265		)	(17,265		)	—			(17,265		)
Natural gas derivative deferred premiums	—		—			(847		)	(847		)	619			(228		)
Noncurrent:
Oil derivatives	$	—	$	(17,279	)	$	—		$	(17,279	)	$	2,056		$	(15,223	)
NGL derivatives	—		—			—			—			—			—
Natural gas derivatives	—		(2,468		)	—			(2,468		)	474			(1,994		)
Oil derivative deferred premiums	—		—			(3,728		)	(3,728		)	—			(3,728		)
Natural gas derivative deferred premiums	—		—			—			—			—			—
Net derivative liability positions	$	—	$	(40,091	)	$	(21,840	)	$	(61,931	)	$	—		$	(61,931	)

(in thousands)	Level 1		Level 2			Level 3			Total gross fair value			Amounts offset			Net fair value presented on the unaudited consolidated balance sheets
As of December 31, 2017:
Assets:
Current:
Oil derivatives	$	—	$	7,427		$	—		$	7,427		$	(3,721	)	$	3,706
NGL derivatives	—		—			—			—			—			—
Natural gas derivatives	—		10,546			—			10,546			(4,817		)	5,729
Oil derivative deferred premiums	—		—			—			—			(87		)	(87		)
Natural gas derivative deferred premiums	—		—			—			—			(2,456		)	(2,456		)
Noncurrent:
Oil derivatives	$	—	$	11,613		$	—		$	11,613		$	(6,087	)	$	5,526
NGL derivatives	—		—			—			—			—			—
Natural gas derivatives	—		934			—			934			(934		)	—
Oil derivative deferred premiums	—		—			—			—			(2,113		)	(2,113		)
Natural gas derivative deferred premiums	—		—			—			—			—			—
Liabilities:
Current:
Oil derivatives	$	—	$	(12,477	)	$	—		$	(12,477	)	$	3,721		$	(8,756	)
NGL derivatives	—		—			—			—			—			—
Natural gas derivatives	—		—			—			—			4,817			4,817
Oil derivative deferred premiums	—		—			(18,202		)	(18,202		)	87			(18,115		)
Natural gas derivative deferred premiums	—		—			(3,352		)	(3,352		)	2,456			(896		)
Noncurrent:
Oil derivatives	$	—	$	(2,389	)	$	—		$	(2,389	)	$	6,087		$	3,698
NGL derivatives	—		—			—			—			—			—
Natural gas derivatives	—		—			—			—			934			934
Oil derivative deferred premiums	—		—			(7,129		)	(7,129		)	2,113			(5,016		)
Natural gas derivative deferred premiums	—		—			—			—			—			—
Net derivative asset (liability) positions	$	—	$	15,654		$	(28,683	)	$	(13,029	)	$	—		$	(13,029	)

Significant Level 2 inputs associated with the calculation of discounted cash flows used in the fair value mark-to-market analysis of derivatives include each derivative contract's corresponding commodity index price(s), appropriate risk-adjusted discount rates and forward price curve models for substantially similar instruments generated from a compilation of data gathered from third parties.

The Company's deferred premiums associated with its derivative contracts are categorized as Level 3, as the Company utilizes a net present value calculation to determine the valuation. They are considered to be measured on a recurring basis as the derivative contracts they derive from are measured on a recurring basis. As derivative contracts containing deferred premiums are entered into, the Company discounts the associated deferred premium to its net present value at the contract trade date, using the Senior Secured Credit Facility rate at the trade date and then records the change in net present value to interest expense over the period from the trade date until the final settlement date at the end of the contract. After this initial valuation, the net present value of each deferred premium is not adjusted; therefore, significant increases (decreases) in the Senior Secured Credit Facility rate would result in a significantly lower (higher) fair value measurement for each new contract entered into that contained a deferred premium; however, the valuation for the deferred premiums already recorded would remain unaffected. While the Company believes the sources utilized to arrive at the fair value estimates are reliable, different sources or methods could have yielded different fair value estimates. The deferred premiums are included in the "Derivatives" line items on the unaudited consolidated balance sheets, and as of September 30, 2018, their input rates range from 1.91% to 3.32% with a net fair value weighted-average rate of 2.78%.

The following table presents payments required for derivative deferred premiums as of September 30, 2018 for the periods presented:

(in thousands)	September 30, 2018
Remaining 2018	$	5,405
2019	15,502
2020	1,295
Total	$	22,202

A summary of the changes in net assets and liabilities classified as Level 3 measurements for the periods presented are as follows:

	Three months ended September 30,						Nine months ended September 30,
(in thousands)	2018			2017			2018			2017
Balance of Level 3 at beginning of period	$	(25,026	)	$	(12,554	)	$	(28,683	)	$	(8,998	)
Change in net present value of derivative deferred premiums(1)	(168		)	(88		)	(564		)	(199		)
Total purchases and settlements of derivative deferred premiums:
Purchases	(2,101		)	(15,996		)	(7,523		)	(22,994		)
Settlements	5,455			1,448			14,930			5,001
Balance of Level 3 at end of period	$	(21,840	)	$	(27,190	)	$	(21,840	)	$	(27,190	)

____________________________________________________________________________

(1) These amounts are included in the "Interest expense" line item in the unaudited consolidated statements of operations.

b.    Fair value measurement on a nonrecurring basis

See Note 10.b "Fair value measurement on a nonrecurring basis" and Note 4.c "2016 acquisitions of evaluated and unevaluated oil and natural gas properties" in the 2017 Annual Report for the Company's accounting policies and assumptions in estimating the fair values of assets acquired and liabilities assumed for acquisitions of evaluated and unevaluated oil and natural gas properties. See Note 3.a for additional discussion of the Company's acquisitions of evaluated and unevaluated oil and natural gas properties for the nine months ended September 30, 2018.

Items not accounted for at fair value

The carrying amounts reported in the unaudited consolidated balance sheets for cash and cash equivalents, accounts receivable, accounts payable, accrued capital expenditures, undistributed revenue and royalties and other accrued assets and liabilities approximate their fair values.

The Company has not elected to account for its debt instruments at fair value. The following table presents the carrying amounts and fair values of the Company's debt as of the dates presented:

	September 30, 2018				December 31, 2017
(in thousands)	Long-term debt		Fair value(1)		Long-term debt		Fair value(1)
January 2022 Notes	$	450,000	$	448,875	$	450,000	$	454,500
March 2023 Notes	350,000		352,730		350,000		364,105
Senior Secured Credit Facility	170,000		170,084		—		—
Total	$	970,000	$	971,689	$	800,000	$	818,605

______________________________________________________________________________

(1) The fair values of the debt outstanding on the January 2022 Notes and the March 2023 Notes were determined using the September 30, 2018 and December 31, 2017 quoted market price (Level 1) for each respective instrument. The fair value of the outstanding debt on the Senior Secured Credit Facility as of September 30, 2018 was estimated utilizing a pricing model for similar instruments (Level 2).

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Net income per common share

9 Months Ended

Sep. 30, 2018

Earnings Per Share [Abstract]

Net income per common share

Net income per common share

Basic net income per common share is computed by dividing net income by the weighted-average number of common shares outstanding for the period. Diluted net income per common share reflects the potential dilution of non-vested restricted stock awards, outstanding stock option awards and non-vested performance share awards. The dilutive effects of these awards were calculated utilizing the treasury stock method. See Note 7.c for additional discussion on these awards.

The following table reflects the calculation of basic and diluted weighted-average common shares outstanding and net income per common share for the periods presented:

	Three months ended September 30,				Nine months ended September 30,
(in thousands, except for per share data)	2018		2017		2018		2017
Net income (numerator):
Net income—basic and diluted	$	55,050	$	11,027	$	175,022	$	140,413
Weighted-average common shares outstanding (denominator):
Basic(1)	230,605		239,306		233,228		239,017
Non-vested restricted stock awards(2)	935		650		911		845
Outstanding stock option awards(3)	99		130		68		129
Non-vested performance share awards(4)	—		4,801		—		4,702
Diluted	231,639		244,887		234,207		244,693
Net income per common share:
Basic	$	0.24	$	0.05	$	0.75	$	0.59
Diluted	$	0.24	$	0.05	$	0.75	$	0.57

_____________________________________________________________________________

(1) Weighted-average common shares outstanding used in the computation of basic and diluted net income per common share was computed taking into account share repurchases that occurred during the three and nine months ended September 30, 2018. See Note 7.a for additional discussion of the Company's share repurchase program.

(2) The effect of a significant portion of the non-vested restricted stock awards was excluded from the calculation of diluted net income per common share for the three and nine months ended September 30, 2018. The inclusion of these non-vested restricted stock awards would be anti-dilutive due to the sum of the assumed proceeds exceeding the average stock price during the period.

(3) The effect of the outstanding stock option awards, with the exception of those granted in 2016, was excluded from the calculation of diluted net income per common share for the three and nine months ended September 30, 2018. The inclusion of these stock option awards would be anti-dilutive as their exercise prices were greater than the average stock price during the period.

(4) The effect of the non-vested performance share awards was excluded from the calculation of diluted net income per common share for the three and nine months ended September 30, 2018 as the awards were below the respective agreements' payout thresholds. The effect of the non-vested performance share awards granted in 2018 was calculated utilizing the following criteria defined in Note 7.c: (i) the RTSR Performance Percentage, (ii) the ATSR Appreciation and (iii) the ROACE Percentage from the beginning of the performance period to September 30, 2018 for each of the criteria to identify the RTSR Factor, the ATSR Factor and the ROACE Factor, respectively, which were used to compute the Performance Multiple to determine the number of shares for the dilutive effect. The effects of the non-vested performance share awards granted in 2016 and 2017 were calculated utilizing the Company's TSR from the beginning of each performance share awards' respective performance period to September 30, 2018 in comparison to the TSR of the peers specified in each respective performance share awards' agreement.

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Commitments and contingencies

9 Months Ended

Sep. 30, 2018

Commitments and Contingencies Disclosure [Abstract]

Commitments and contingencies

Commitments and contingencies

a.Litigation

From time to time, the Company is subject to various legal proceedings arising in the ordinary course of business, including proceedings for which the Company may not have insurance coverage. While many of these matters involve inherent uncertainty, except with regard to the specific litigation noted below, as of the date hereof, the Company does not currently believe that any such legal proceedings will have a material adverse effect on the Company's business, financial position, results of operations or liquidity.

On May 3, 2017, Shell Trading (US) Company ("Shell") filed an Original Petition and Request for Disclosure in the District Court of Harris County, Texas, alleging that the crude oil purchase agreement entered into between Shell and Laredo effective October 1, 2016 through June 30, 2020 does not accurately reflect the compensation to be paid to Shell under certain circumstances due to a drafting mistake. Shell seeks reformation of one clause of the crude oil purchase agreement on the grounds of alleged mutual mistake or, in the alternative, unilateral mistake, an award of the amounts Shell alleges it should have been or should be paid under the crude oil purchase agreement, court costs and attorneys' fees. The Company does not believe there was a drafting mistake made in the crude oil purchase agreement, which covered the sale to Shell of 19,000 barrels of crude oil per day of the Company's gross production as well as the purchase by the Company of like-quantity crude oil from Shell. On December 11, 2017, Shell filed its First Amended Petition, in which it asserted nine causes of action, including multiple new claims for breach of contract and fraud.

Effective May 1, 2018, Shell terminated the crude oil purchase agreement and ceased purchasing the Company's crude oil and selling crude oil to the Company under the terms of such agreement. As a result, the Company filed its Second Amended Answer and Original Counterclaim against Shell on June 15, 2018, in which the Company denies all allegations by Shell and seeks damages in excess of $150.0 million resulting from Shell's breach and wrongful termination of the crude oil purchase agreement. Shell filed a Second Amended Petition on June 1, 2018, in which it asserted a new cause of action against the Company for alleged repudiation of Shell's proposed reformed version of the crude oil purchase agreement, a version never signed or agreed to by the Company.

Through April 30, 2018, the date on which Shell wrongfully terminated the crude oil purchase agreement, the Company had accounted for the costs and crude oil price realization as reflected in the terms of the crude oil purchase agreement. The accompanying unaudited consolidated balance sheets do not include any amounts for damage claims or attorneys' fees sought by Shell. As of September 30, 2018, the Company had estimated an aggregate amount of $37.4 million that is the subject of Shell's claims, which is generally based on the contractual amount in dispute under the pricing election that is the subject of Shell's claims applied to the barrels of crude oil purchased and sold through the date on which Shell wrongfully terminated the crude oil purchase agreement. As a result of such termination, the Company's estimate of this unrecorded amount is not anticipated to materially increase in the future. This estimate does not include damages sought by Shell pursuant to its latest repudiation claim asserted in its Second Amended Petition or amounts sought by Shell for recovery of attorneys' fees incurred for the prosecution of its claims. 

The Company is unable to determine a probability of the outcome of this litigation at this time. The Company believes Shell's claims are meritless and the termination by Shell is improper and a breach of the crude oil purchase agreement. The Company therefore intends to vigorously defend itself against Shell's claims and pursue its rights under the terminated crude oil purchase agreement to seek all appropriate damages from Shell.

b.Drilling contracts

The Company has committed to several drilling contracts with third parties to facilitate the Company's drilling plans. Certain of these contracts are for a term of multiple months and contain early termination clauses that require the Company to potentially pay penalties to the third party should the Company cease drilling efforts. These penalties would negatively impact the Company's financial statements upon early contract termination. There were no penalties incurred for early contract termination for either of the nine months ended September 30, 2018 or 2017. The future commitment of $22.9 million as of September 30, 2018 is not recorded in the accompanying unaudited consolidated balance sheets. Management does not currently anticipate the early termination of these contracts in 2018.

c.Firm sale and transportation commitments

The Company has committed to deliver, for sale or transportation, fixed volumes of product under certain contractual arrangements that specify the delivery of a fixed and determinable quantity. If not fulfilled, the Company is subject to firm transportation payments on excess pipeline capacity and other contractual penalties. These commitments are normal and customary for the Company's business. In certain instances, the Company has used spot market purchases to meet its commitments in certain locations or due to favorable pricing. Management anticipates continuing this practice in the future. The Company incurred firm transportation payments on excess pipeline capacity and other contractual penalties of $0.2 million and $0.5 million during the three months ended September 30, 2018 and 2017, respectively, and $2.5 million and $1.1 million during the nine months ended September 30, 2018 and 2017, respectively. For the three and nine months ended September 30, 2018, these firm transportation payments on excess pipeline capacity and other contractual penalties are netted with the respective revenue stream in the unaudited consolidated statements of operations. For the three and nine months ended September 30, 2017, these firm transportation payments on excess pipeline capacity and other penalties are included in the "Other operating expenses" line item in the unaudited consolidated statements of operations. See Note 4.a for additional information regarding the presentation of firm transportation payments on excess pipeline capacity and other contractual penalties. Future commitments of $367.7 million as of September 30, 2018 are not recorded in the accompanying unaudited consolidated balance sheets. For information regarding the TA related to Medallion, see Note 3.c. 

d.    Sand purchase and supply agreement

During the second quarter of 2018, the Company entered into a sand purchase and supply agreement, for a term of one year, whereby it has committed to buy a certain volume of in-basin sand, utilized in the Company's completion activities, for a fixed price. As of September 30, 2018, under the terms of this agreement, the Company is required to purchase a certain percentage of the volume commitment or it would incur a shortfall payment of $5.7 million at the end of the contract period.

e.Federal and state regulations

Oil and natural gas exploration, production and related operations are subject to extensive federal and state laws, rules and regulations. Failure to comply with these laws, rules and regulations can result in substantial penalties. The regulatory burden on the oil and natural gas industry increases the cost of doing business and affects profitability. The Company believes that it is in compliance with currently applicable federal and state regulations related to oil and natural gas exploration and production, and that compliance with the current regulations will not have a material adverse impact on the financial position or results of operations of the Company. These rules and regulations are frequently amended or reinterpreted; therefore, the Company is unable to predict the future cost or impact of complying with these regulations.

f.Environmental

The Company is subject to extensive federal, state and local environmental laws and regulations. These laws, among other things, regulate the discharge of materials into the environment and may require the Company to remove or mitigate the environmental effects of the disposal or release of petroleum or chemical substances at various sites. Environmental expenditures are expensed in the period incurred. Liabilities for expenditures of a non-capital nature are recorded when environmental assessment or remediation is probable and the costs can be reasonably estimated. Such liabilities are generally undiscounted unless the timing of cash payments is fixed and readily determinable. Management believes no materially significant liabilities of this nature existed as of September 30, 2018 or December 31, 2017.

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Supplemental cash flow information

9 Months Ended

Sep. 30, 2018

Supplemental Cash Flow Elements [Abstract]

Supplemental cash flow information

Supplemental cash flow information

The following table presents supplemental cash flow information:

	Nine months ended September 30,
(in thousands)	2018			2017
Non-cash investing activities:
(Decrease) increase in accrued capital expenditures	$	(44,533	)	$	39,156
Capitalized stock-based compensation	$	6,025		$	5,642
Capitalized asset retirement costs	$	719		$	670
Other supplemental cash flow information:
Capitalized interest	$	710		$	756

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Asset retirement obligations

9 Months Ended

Sep. 30, 2018

Asset Retirement Obligation Disclosure [Abstract]

Asset retirement obligations

Asset retirement obligations

See Note 2.m "Asset retirement obligations" in the 2017 Annual Report for discussion on asset retirement obligations.

The following table reconciles the Company's asset retirement obligation liability associated with tangible long-lived assets:

	Nine months ended September 30,
(in thousands)	2018			2017
Liability at beginning of period	$	55,506		$	52,207
Liabilities added due to acquisitions, drilling, midstream service asset construction and other	719			492
Accretion expense	3,341			2,822
Liabilities settled due to plugging and abandonment or sale	(2,246		)	(1,228		)
Revision of estimates	—			178
Liability at end of period	$	57,320		$	54,471

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Income taxes

9 Months Ended

Sep. 30, 2018

Income Tax Disclosure [Abstract]

Income taxes

Income taxes

The Company is subject to federal and state income taxes and the Texas franchise tax. The Company had federal net operating loss carry-forwards totaling $1.8 billion and state of Oklahoma net operating loss carry-forwards totaling $36.3 million as of September 30, 2018, which begin expiring in 2026 and 2032, respectively. Due to the passing of Public Law No. 115-97, commonly referred to as the Tax Cuts and Jobs Act (the "Tax Act"), $86.4 million of the federal net operating loss carry-forward will not expire but may be limited in future periods. As of September 30, 2018, the Company believes it is more likely than not that a portion of the net operating loss carry-forwards are not fully realizable. The Company continues to consider new evidence, both positive and negative, in determining whether, based on the weight of that evidence, a valuation allowance is needed. Such consideration includes projected future cash flows from its oil, NGL and natural gas reserves (including the timing of those cash flows), the reversal of deferred tax liabilities recorded as of September 30, 2018, the Company's ability to capitalize intangible drilling costs, rather than expensing these costs in order to prevent an operating loss carry-forward from expiring unused and future projections of Oklahoma sourced income. As of September 30, 2018, a full valuation allowance of $298.8 million has been recorded against the Company's federal and state of Oklahoma net deferred tax assets. As of September 30, 2018, a Texas deferred tax liability of $1.8 million has been recorded along with the corresponding deferred income tax expense. Additionally, a current tax refund of $0.4 million of Texas franchise tax is expected as a result of differences in estimated versus actual taxable income from the gain on the Medallion Sale and is recorded as a current income tax benefit.

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Subsidiary guarantors

9 Months Ended

Sep. 30, 2018

Condensed Financial Information Disclosure [Abstract]

Subsidiary guarantors

Subsidiary guarantors

The Guarantors have fully and unconditionally guaranteed the January 2022 Notes, the March 2023 Notes and the Senior Secured Credit Facility (and had guaranteed the May 2022 Notes until the May 2022 Notes Redemption Date), subject to the Releases. In accordance with practices accepted by the SEC, Laredo has prepared condensed consolidating financial statements to quantify the balance sheets, results of operations and cash flows of such subsidiaries as subsidiary guarantors. The following unaudited condensed consolidating (i) balance sheets as of September 30, 2018 and December 31, 2017, (ii) statements of operations for the three and nine months ended September 30, 2018 and 2017 and (iii) statements of cash flows for the nine months ended September 30, 2018 and 2017 present financial information for Laredo on a stand-alone basis (carrying any investment in subsidiaries under the equity method), financial information for the subsidiary guarantors on a stand-alone basis (carrying any investment in subsidiaries under the equity method), and the consolidation and elimination entries necessary to arrive at the information for the Company on a condensed consolidated basis. Income taxes for LMS and for GCM are recorded on Laredo's balance sheets, statements of operations and statements of cash flows as they are disregarded entities for income tax purposes. Laredo and the Guarantors are not restricted from making intercompany distributions to each other.

Condensed consolidating balance sheet

September 30, 2018

(in thousands)	Laredo		Subsidiary Guarantors		Intercompany eliminations			Consolidated company
Accounts receivable, net	$	103,109	$	14,472	$	—		$	117,581
Other current assets	70,413		1,533		—			71,946
Oil and natural gas properties, net	1,951,518		9,146		(22,174		)	1,938,490
Midstream service assets, net	—		132,415		—			132,415
Other fixed assets, net	42,071		193		—			42,264
Investment in subsidiaries	130,439		—		(130,439		)	—
Other noncurrent assets, net	13,113		3,965		—			17,078
Total assets	$	2,310,663	$	161,724	$	(152,613	)	$	2,319,774
Accounts payable and accrued liabilities	$	68,037	$	18,600	$	—		$	86,637
Other current liabilities	162,893		9,739		—			172,632
Long-term debt, net	963,191		—		—			963,191
Other noncurrent liabilities	79,256		2,946		—			82,202
Stockholders' equity	1,037,286		130,439		(152,613		)	1,015,112
Total liabilities and stockholders' equity	$	2,310,663	$	161,724	$	(152,613	)	$	2,319,774

Condensed consolidating balance sheet

December 31, 2017

(in thousands)	Laredo			Subsidiary Guarantors			Intercompany eliminations			Consolidated company
Accounts receivable, net	$	79,413		$	21,232		$	—		$	100,645
Other current assets	132,219			2,518			—			134,737
Oil and natural gas properties, net	1,596,834			9,220			(16,715		)	1,589,339
Midstream service assets, net	—			138,325			—			138,325
Other fixed assets, net	40,344			377			—			40,721
Investment in subsidiaries	(7,566		)	—			7,566			—
Other noncurrent assets, net	15,526			3,996			—			19,522
Total assets	$	1,856,770		$	175,668		$	(9,149	)	$	2,023,289
Accounts payable and accrued liabilities	$	34,550		$	23,791		$	—		$	58,341
Other current liabilities	193,104			25,974			—			219,078
Long-term debt, net	791,855			—			—			791,855
Other noncurrent liabilities	54,967			133,469			—			188,436
Stockholders' equity	782,294			(7,566		)	(9,149		)	765,579
Total liabilities and stockholders' equity	$	1,856,770		$	175,668		$	(9,149	)	$	2,023,289

Condensed consolidating statement of operations

For the three months ended September 30, 2018

(in thousands)	Laredo			Subsidiary Guarantors			Intercompany eliminations			Consolidated company
Total revenues	$	225,970		$	73,463		$	(19,687	)	$	279,746
Total costs and expenses	123,942			69,146			(17,752		)	175,336
Operating income	102,028			4,317			(1,935		)	104,410
Interest expense	(14,845		)	—			—			(14,845		)
Other non-operating expense	(28,811		)	(26		)	(4,291		)	(33,128		)
Income before income taxes	58,372			4,291			(6,226		)	56,437
Income tax expense	(1,387		)	—			—			(1,387		)
Net income	$	56,985		$	4,291		$	(6,226	)	$	55,050

Condensed consolidating statement of operations

For the three months ended September 30, 2017

(in thousands)	Laredo			Subsidiary Guarantors		Intercompany eliminations			Consolidated company
Total revenues	$	157,902		$	63,686	$	(15,770	)	$	205,818
Total costs and expenses	97,686			62,245		(14,565		)	145,366
Operating income	60,216			1,441		(1,205		)	60,452
Interest expense	(23,697		)	—		—			(23,697		)
Other non-operating income (expense)	(24,287		)	2,290		(3,731		)	(25,728		)
Income before income taxes	12,232			3,731		(4,936		)	11,027
Income tax	—			—		—			—
Net income	$	12,232		$	3,731	$	(4,936	)	$	11,027

Condensed consolidating statement of operations

For the nine months ended September 30, 2018

(in thousands)	Laredo			Subsidiary Guarantors			Intercompany eliminations			Consolidated company
Total revenues	$	632,419		$	312,784		$	(54,715	)	$	890,488
Total costs and expenses	345,232			302,143			(49,256		)	598,119
Operating income	287,187			10,641			(5,459		)	292,369
Interest expense	(42,787		)	—			—			(42,787		)
Other non-operating expense	(62,532		)	(1,307		)	(9,334		)	(73,173		)
Income before income taxes	181,868			9,334			(14,793		)	176,409
Income tax expense	(1,387		)	—			—			(1,387		)
Net income	$	180,481		$	9,334		$	(14,793	)	$	175,022

Condensed consolidating statement of operations

For the nine months ended September 30, 2017

(in thousands)	Laredo			Subsidiary Guarantors		Intercompany eliminations			Consolidated company
Total revenues	$	439,269		$	190,926	$	(48,370	)	$	581,825
Total costs and expenses	276,855			183,310		(42,179		)	417,986
Operating income	162,414			7,616		(6,191		)	163,839
Interest expense	(69,590		)	—		—			(69,590		)
Other non-operating income	53,780			7,622		(15,238		)	46,164
Income before income taxes	146,604			15,238		(21,429		)	140,413
Income tax	—			—		—			—
Net income	$	146,604		$	15,238	$	(21,429	)	$	140,413

Condensed consolidating statement of cash flows

For the nine months ended September 30, 2018

(in thousands)	Laredo			Subsidiary Guarantors			Intercompany eliminations			Consolidated company
Net cash provided by operating activities	$	402,065		$	15,797		$	(9,334	)	$	408,528
Change in investment between affiliates	3,115			(12,449		)	9,334			—
Capital expenditures and other	(533,083		)	(3,348		)	—			(536,431		)
Net cash provided by financing activities	66,151			—			—			66,151
Net decrease in cash and cash equivalents	(61,752		)	—			—			(61,752		)
Cash and cash equivalents, beginning of period	112,158			1			—			112,159
Cash and cash equivalents, end of period	$	50,406		$	1		$	—		$	50,407

Condensed consolidating statement of cash flows

For the nine months ended September 30, 2017

(in thousands)	Laredo			Subsidiary Guarantors			Intercompany eliminations			Consolidated company
Net cash provided by operating activities	$	273,309		$	13,980		$	(15,238	)	$	272,051
Change in investment between affiliates	(36,890		)	21,652			15,238			—
Capital expenditures and other	(321,261		)	(35,632		)	—			(356,893		)
Net cash provided by financing activities	72,988			—			—			72,988
Net decrease in cash and cash equivalents	(11,854		)	—			—			(11,854		)
Cash and cash equivalents, beginning of period	32,671			1			—			32,672
Cash and cash equivalents, end of period	$	20,817		$	1		$	—		$	20,818

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Subsequent events

9 Months Ended

Sep. 30, 2018

Subsequent Events [Abstract]

Subsequent events

Subsequent events

On October 15, 2018, the Company borrowed $20.0 million on the Senior Secured Credit Facility. As a result, the outstanding balance under the Senior Secured Credit Facility was $190.0 million as of November 5, 2018.

On October 23, 2018, pursuant to the regular semi-annual redetermination, the lenders reaffirmed the borrowing base of $1.3 billion under the Senior Secured Credit Facility. The Company's aggregate elected commitment of $1.2 billion remains unchanged.

As of November 5, 2018, the Company had one letter of credit outstanding of $14.7 million under the Senior Secured Credit Facility.

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Organization and basis of presentation (Policies)

9 Months Ended

Sep. 30, 2018

Accounting Policies [Abstract]

Basis of presentation

Basis of presentation

The accompanying unaudited consolidated financial statements were derived from the historical accounting records of the Company and reflect the historical financial position, results of operations and cash flows for the periods described herein. The accompanying unaudited consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States of America ("GAAP"). All material intercompany transactions and account balances have been eliminated in the consolidation of accounts.

The accompanying unaudited consolidated financial statements have not been audited by the Company's independent registered public accounting firm, except that the consolidated balance sheet as of December 31, 2017 is derived from audited consolidated financial statements. In the opinion of management, the accompanying unaudited consolidated financial statements reflect all necessary adjustments to present fairly the Company's financial position as of September 30, 2018, results of operations for the three and nine months ended September 30, 2018 and 2017 and cash flows for the nine months ended September 30, 2018 and 2017.

Certain disclosures have been condensed or omitted from these unaudited consolidated financial statements. Accordingly, these unaudited consolidated financial statements should be read in conjunction with the audited consolidated financial statements and notes thereto included in the 2017 Annual Report.

Significant accounting policies

See Note 2 "Basis of presentation and significant accounting policies" in the 2017 Annual Report for discussion of significant accounting policies.

Use of estimates in the preparation of interim unaudited consolidated financial statements

Use of estimates in the preparation of interim unaudited consolidated financial statements

The preparation of the accompanying unaudited consolidated financial statements in conformity with GAAP requires management to make estimates and assumptions about future events. These estimates and the underlying assumptions affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Although management believes these estimates are reasonable, actual results could differ.

For further information regarding the estimates and assumptions, see Note 2.b "Use of estimates in the preparation of consolidated financial statements" in the 2017 Annual Report. Furthermore, see Note 7.c for a discussion of estimates pertaining to the Company's 2018 performance share awards.

Reclassifications

Reclassifications

Certain amounts in the accompanying unaudited consolidated financial statements have been reclassified to conform to the 2018 presentation. These reclassifications had no impact on previously reported total assets, total liabilities, net income, stockholders' equity or total operating, investing or financing cash flows.

Recently issued or adopted accounting pronouncements

Recently issued or adopted accounting pronouncements

The Company considers the applicability and impact of all accounting standard updates ("ASU") issued by the Financial Accounting Standards Board ("FASB") to the FASB Accounting Standards Codification ("ASC"). The discussion of the ASUs and a final rule issued by the SEC listed below were determined to be meaningful to the Company's unaudited consolidated financial statements and/or footnotes during the nine months ended September 30, 2018.    

a.    Revenue recognition

On January 1, 2018, the Company adopted ASC 606, Revenue from Contracts with Customers ("ASC 606"), using the modified retrospective approach of adoption. ASC 606 supersedes previous revenue recognition requirements in ASC 605, Revenue Recognition ("ASC 605"), and includes a five-step revenue recognition model to depict the transfer of goods or services to customers in an amount that reflects the consideration to which the Company expects to be entitled in exchange for those goods or services. In addition, the new standard requires significantly expanded disclosures related to the nature, timing, amount and uncertainty of revenue and cash flows arising from contracts with customers. See Note 4 for further discussion of the ASC 606 adoption impact on the Company's unaudited consolidated financial statements and the Company's revenue recognition policies.     

b.    Leases

In February 2016, the FASB issued new guidance in ASC 842, Leases ("ASC 842"), which will supersede the current guidance in ASC 840, Leases ("ASC 840"). The core principle of the new guidance is that a lessee should recognize in the statement of financial position a liability to make lease payments and a right-of-use asset representing its right to use the underlying asset for the lease term for leases currently classified as operating leases. For leases with a term of 12 months or less, a lessee is permitted to make an accounting policy election, by class of underlying asset, not to recognize lease assets and lease liabilities. In January 2018, the FASB issued new guidance in ASC 842 to provide an optional transition practical expedient to not evaluate existing or expired land easements that were not previously accounted for as leases under ASC 840.

In July 2018, the FASB issued new guidance in ASC 842 to provide entities with an additional (and optional) transition method to adopt the new leases standard. Under this new transition method, an entity initially applies the new leases standard at the adoption date and recognizes a cumulative-effect adjustment to the opening balance of retained earnings in the period of adoption. Consequently, an entity's reporting for the comparative periods presented in the financial statements in which it adopts the new leases standard will continue to be in accordance with ASC 840. An entity that elects this transition method must provide the required ASC 840 disclosures for all periods that continue to be reported in accordance with ASC 840.

The amendments in these ASUs are effective for fiscal years beginning after December 15, 2018, including interim periods within those fiscal years. Early adoption is permitted. The primary effect on the Company's consolidated financial statements will be to record assets and obligations for contracts currently recognized as operating leases with a term greater than 12 months and to evaluate operating leases with a term less than or equal to 12 months for accounting policy election. The Company has a team, including third-party consultants, to implement the standard and is implementing the software that will be used to track and account for lease activity. The Company anticipates that the adoption and implementation of ASC 842 will result in a material increase in assets and liabilities on the consolidated balance sheet but will not result in a material impact to the consolidated statement of operations. The estimate of the dollar value impact of the adoption is on-going.

The Company has made certain accounting policy decisions including that it plans to adopt the short-term lease recognition exemption, accounting for certain asset classes at a portfolio level, and establishing a balance sheet recognition capitalization threshold. The transition will utilize the modified retrospective approach to adopting the new standard that will be applied at the beginning of the period adopted (January 1, 2019). The Company will utilize the transition package of expedients to leases that commenced before the effective date. The Company expects for certain lessee asset classes to elect the practical expedient and not separate lease and non-lease components. For these asset classes, the agreements will be accounted for as a single lease component.

c.    Business combinations

In January 2017, the FASB issued new guidance in ASC 805, Business Combinations, to clarify the definition of a business with the objective of adding guidance to assist entities with evaluating whether transactions should be accounted for as acquisitions (or disposals) of assets or businesses. The amendments in this ASU provide a screen to determine when a set of assets and activities is not a business. The screen requires that when substantially all of the fair value of the gross assets acquired (or disposed of) is concentrated in a single identifiable asset or a group of similar identifiable assets, the set is not a business. If the screen is not met, the amendments in this ASU require that to be considered a business, a set must include, at a minimum, an input and a substantive process that, together, significantly contribute to the ability to create an output.

The primary effect of adoption of this ASU is that, depending on the facts and circumstances of each transaction, more transactions could be accounted for as acquisitions of assets. The Company adopted this ASU on January 1, 2018 on a prospective basis, and the adoption did not have an effect on its unaudited consolidated financial statements. See Note 3.a for discussion of the Company's 2018 acquisitions of evaluated and unevaluated oil and natural gas properties, which were accounted for as asset acquisitions under this ASU.

d.    Fair value measurements

In August 2018, the FASB issued new guidance in ASC 820, Fair Value Measurement, to modify disclosure requirements. Of the amendments in the ASU, the below items affected the Company's fair value measurement disclosures in Note 9. Removed disclosure requirements that should be applied retrospectively to all periods presented are: (i) the amount of and reasons for transfers between Level 1 and Level 2 of the fair value hierarchy, (ii) the policy for timing of transfers between levels and (iii) the valuation processes for Level 3 fair value measurements. A modified disclosure requirement that should be applied prospectively is to clarify that the measurement uncertainty disclosure communicates information about the uncertainty in measurement as of the reporting date. A new disclosure requirement that should be applied prospectively is to disclose the range and weighted-average of significant unobservable inputs used to develop Level 3 fair value measurements. The Company has elected to early adopt this guidance upon the issuance of the ASU and has modified its disclosures accordingly in this Quarterly Report.

e.    SEC disclosure update and simplification

In August 2018, the SEC issued Final Rule Release No. 33-10532, Disclosure Update and Simplification, which amends various SEC disclosure requirements that they have determined to be redundant, duplicative, overlapping, outdated or superseded. The amendments also extend the annual disclosure requirement of presenting the changes in stockholders' equity to interim periods. An analysis of changes in stockholders’ equity will now be required for the current and comparative year-to-date interim periods. The Company has incorporated certain aspects of the final rule in this Quarterly Report and will complete the implementation of the final rule in the fourth quarter of 2018.

Revenue recognition

Revenue recognition

Oil, NGL and natural gas revenues are generally recognized at the point in time that control of the product is transferred to the customer. Midstream service revenues are generated through fees for products and services that need to be delivered by midstream infrastructure, including oil and liquids-rich natural gas gathering services as well as rig fuel, gas lift and water delivery, recycling and takeaway (collectively, "Midstream Services") and are recognized over time as the customer benefits from these services when provided. A more detailed summary of the underlying contracts that give rise to the Company's revenue and method of recognition is included below.

Oil sales and sales of purchased oil

Under its oil sales contracts, the Company sells produced or purchased oil at the delivery point specified in the contract and collects an agreed-upon index price, net of pricing differentials. The delivery point may be at the wellhead, the inlet of the purchaser's pipeline or nominated pipeline or the Company's truck unloading facility. At the delivery point, the purchaser typically takes custody, title and risk of loss of the product and, therefore, control as defined under ASC 606 typically passes at the delivery point. The Company recognizes revenue at the net price received when control transfers to the purchaser.

From time to time, the Company engages in transactions in which it sells oil at the lease and subsequently repurchases the same volume of oil from that customer at a downstream delivery point under a separate agreement ("Repurchase Agreement") for use in the sale to the final customer. The commercial reasoning for such transactions may vary. Where a Repurchase Agreement exists, the Company must evaluate whether the customer obtains control of the oil at the lease and therefore whether it is appropriate to recognize revenue for the lease sale. Where the Company has an obligation or a right to repurchase the oil, the customer does not obtain control of the oil because it is limited in its ability to direct the use of, and obtain substantially all of the remaining benefits from the oil even though it may have physical possession of the oil. If the Company repurchases the oil for less than the original selling price, such a transaction will be classified as a lease. If the Company repurchases the oil for equal to or more than the original selling price, then the transaction represents a financing arrangement unless there is only a short passage of time between the sale and repurchase, in which case any excess amount paid represents an expense associated with the sale of oil to the final customer. The Company recognizes such repurchase expense and any transportation expenses incurred for the delivery of the oil to the final customer in the "Transportation and marketing expenses" line item in the accompanying unaudited consolidated statements of operations.

Under certain of its customer contracts, the Company is subject to firm transportation payments on excess pipeline capacity and other contractual penalties if it fails to deliver contractual minimum volumes to its customers. Such amounts are recorded as a reduction to the transaction price as these amounts do not represent payments to the customer for distinct goods or services and instead relate specifically to the failure to perform under the specific customer contract. Such amounts are recorded as a reduction to the transaction price when payment is determined as probable, typically when such a deficiency occurs.

NGL and natural gas sales

Under its natural gas processing contracts, the Company delivers produced natural gas to a midstream processing entity at the wellhead or the inlet of the processing entity's system. The processing entity processes the natural gas, sells the resulting NGL and residue gas to third parties and pays the Company for the NGL and residue gas with deductions that may include gathering, compression, processing and transportation fees. In these scenarios, the Company evaluates whether it is the principal or the agent in the transaction. For existing contracts, the Company has concluded that it is the agent in the ultimate sale to the third party and the midstream processing entity is the principal and that we have transferred control of unprocessed natural gas to the midstream processing entity; therefore, the Company recognizes revenue based on the net amount of the proceeds received from the midstream processing entity who represents the Company's customer. If for future contracts the Company was to conclude that it was the principal with the ultimate third party being the customer, the Company would recognize revenue for those contracts on a gross basis, with gathering, compression, processing, and transportation fees presented as an expense.

Midstream Services

Revenue from oil throughput agreements is recognized based on a rate per barrel for volumes transported. Under the Company's oil throughput agreements, a volumetric deduction is taken from customer oil as a pipeline loss allowance. While these amounts represent non-cash consideration under ASC 606, such deductions are immaterial. Revenue from natural gas throughput agreements is recognized based on a rate per MMbtu for volumes transported. Revenue from water delivery, recycling and takeaway is recognized based on the volumes of water for which the services are provided at the applicable contractual rate.

Imbalances

The Company recognizes revenue for all oil, NGL and natural gas sold to purchasers regardless of whether the sales are proportionate to the Company's ownership interest in the property. Production imbalances are recognized as a liability to the extent an imbalance on a specific property exceeds the Company's share of remaining proved oil, NGL and natural gas reserves. The Company is also subject to natural gas pipeline imbalances, which are recorded as accounts receivable or payable at values consistent with contractual arrangements with the owner of the pipeline. The Company did not have any producer or pipeline imbalance positions as of September 30, 2018 or December 31, 2017.

Significant judgments

The Company engages in various types of transactions in which unaffiliated midstream entities process the Company's liquids-rich natural gas and, in some scenarios, subsequently market resulting NGL and residue gas to third-party customers on the Company's behalf. These types of transactions require judgment to determine whether the Company is the principal or the agent in the contract and, as a result, whether revenues are recorded gross or net. For existing contracts, the Company has determined that it serves as the agent in the sale of products under certain natural gas processing and marketing agreements with unaffiliated midstream entities in accordance with the control model in ASC 606. As a result, the Company presents revenue on a net basis for amounts expected to be received from third-party customers through the marketing process, with expenses and deductions incurred subsequent to control of the product(s) transferring to the unaffiliated midstream entity being netted against revenue.

Transaction price allocated to remaining performance obligations

A significant number of the Company's product sales are short-term in nature with a contract term of one year or less. For those contracts, the Company has utilized the practical expedient in ASC 606-10-50-14 that exempts the Company from disclosure of the transaction price allocated to remaining performance obligations if the performance obligation is part of a contract that has an original expected duration of one year or less.

For the Company's product sales that have a contract term greater than one year and for its Midstream Services, the Company has utilized the practical expedient in ASC 606-10-50-14A that states that it is not required to disclose the transaction price allocated to remaining performance obligations if the variable consideration is allocated entirely to a wholly unsatisfied performance obligation. Under the Company's product sales contracts, each unit of product generally represents a separate performance obligation; therefore, future volumes are wholly unsatisfied. Under the Midstream Services contracts each unit of service represents a separate performance obligation and therefore performance obligations in respect of future services are wholly unsatisfied.

Contract balances

Under the Company's customer contracts, invoicing occurs once the Company's performance obligations have been satisfied, at which point payment is unconditional. Accordingly, the Company's contracts do not give rise to contract assets or liabilities under ASC 606.

Prior-period performance obligations

For sales of oil, NGL, natural gas and purchased oil, the Company records revenue in the month production is delivered to the purchaser. However, settlement statements and payment may not be received for 30 to 90 days after the date production is delivered and, as a result, the Company is required to estimate the amount of production that was delivered to the purchaser and the price that will be received for the sale of the product. The Company records the differences between estimates and the actual amounts received for product sales once payment is received from the purchaser. Such differences have historically not been significant. The Company uses knowledge of its properties, its properties' historical performance, spot market prices and other factors as the basis for these estimates. For the three and nine months ended September 30, 2018, revenue recognized related to performance obligations satisfied in prior reporting periods was not material.

Full cost

The Company excludes the costs directly associated with the acquisition and evaluation of unevaluated properties from the depletion calculation until it is determined whether or not proved reserves can be assigned to the properties. The Company capitalizes a portion of its interest costs to its unevaluated properties. Capitalized interest becomes a part of the cost of the unevaluated properties and is subject to depletion when proved reserves can be assigned to the associated properties. All items classified as unevaluated properties are assessed on a quarterly basis for possible impairment. The assessment includes consideration of the following factors, among others: intent to drill, remaining lease term, geological and geophysical evaluations, drilling results and activity, the assignment of evaluated reserves and the economic viability of development if proved reserves are assigned. During any period in which these factors indicate an impairment, the cumulative drilling costs incurred to date for such property and all or a portion of the associated leasehold costs are transferred to the full cost pool and are then subject to depletion.

The Company uses the full cost method of accounting for its oil and natural gas properties. Under this method, all acquisition, exploration and development costs, including certain employee-related costs incurred for the purpose of exploring for or developing oil and natural gas properties, are capitalized and depleted on a composite unit-of-production method based on proved oil, NGL and natural gas reserves. Such amounts include the cost of drilling and equipping productive wells, dry hole costs, lease acquisition costs, delay rentals and other costs related to such activities. Costs, including employee-related costs, associated with production and general corporate activities, are expensed in the period incurred. Sales of oil and natural gas properties, whether or not being depleted currently, are accounted for as adjustments of capitalized costs, with no gain or loss recognized, unless such adjustments would significantly alter the relationship between capitalized costs and proved reserves of oil, NGL and natural gas.

Treasury stock

Treasury stock

Treasury stock is recorded at cost, which includes incremental direct transaction costs, and is retired upon acquisition as a result from share repurchases under the share repurchase program or from the withholding of shares of stock to satisfy employee tax withholding obligations that arise upon the lapse of restrictions on their stock-based awards at the employees' election.

Stock-based compensation

Stock-based compensation

The Company's Long-Term Incentive Plan (the "LTIP") provides for the granting of incentive awards in the form of restricted stock awards, stock option awards, performance share awards, performance unit awards and other awards. The LTIP provides for the issuance of up to 24,350,000 shares of Laredo's common stock.

The Company recognizes the fair value of stock-based compensation awards expected to vest over the requisite service period as a charge against earnings, net of amounts capitalized. The Company's stock-based compensation awards are accounted for as equity instruments and are included in the "General and administrative" line item in the unaudited consolidated statements of operations. The Company capitalizes a portion of stock-based compensation for employees who are directly involved in the acquisition, exploration or development of oil and natural gas properties into the full cost pool. Capitalized stock-based compensation is included in the "Evaluated properties" line item on the unaudited consolidated balance sheets

Net income per common share

Net income per common share

Basic net income per common share is computed by dividing net income by the weighted-average number of common shares outstanding for the period. Diluted net income per common share reflects the potential dilution of non-vested restricted stock awards, outstanding stock option awards and non-vested performance share awards. The dilutive effects of these awards were calculated utilizing the treasury stock method.

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Revenue recognition (Tables)

9 Months Ended

Sep. 30, 2018

Revenue from Contract with Customer [Abstract]

Impact of adoption of ASC 606

The impact of the adoption of ASC 606 on the results of operations for the periods presented is as follows:

	Three months ended September 30, 2018							Nine months ended September 30, 2018
(in thousands)	As computed under ASC 605		As reported under ASC 606		Increase/(decrease)			As computed under ASC 605		As reported under ASC 606		Increase/(decrease)
Revenues:
Oil sales	$	160,246	$	160,007	$	(239	)	$	472,496	$	469,972	$	(2,524	)
NGL sales	$	50,814	$	50,814	$	—		$	115,979	$	115,979	$	—
Natural gas sales	$	15,043	$	15,043	$	—		$	45,908	$	45,908	$	—
Costs and expenses:
Other operating expenses	$	1,353	$	1,114	$	(239	)	$	5,865	$	3,341	$	(2,524	)
Net income	$	55,050	$	55,050	$	—		$	175,022	$	175,022	$	—

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Property and equipment (Tables)

9 Months Ended

Sep. 30, 2018

Property, Plant and Equipment [Abstract]

Schedule of property and equipment

The following table presents the Company's property and equipment as of the dates presented:

(in thousands)	September 30, 2018			December 31, 2017
Evaluated oil and natural gas properties	$	6,589,327		$	6,070,940
Less accumulated depletion and impairment	(4,798,527		)	(4,657,466		)
Evaluated oil and natural gas properties, net	1,790,800			1,413,474
Unevaluated oil and natural gas properties not being depleted	147,690			175,865
Midstream service assets	171,740			171,427
Less accumulated depreciation and impairment	(39,325		)	(33,102		)
Midstream service assets, net	132,415			138,325
Depreciable other fixed assets	50,420			48,957
Less accumulated depreciation and amortization	(26,415		)	(23,150		)
Depreciable other fixed assets, net	24,005			25,807
Land	18,259			14,914
Total property and equipment, net	$	2,113,169		$	1,768,385

Schedule of employee-related costs capitalized to oil and natural gas properties

The following table presents capitalized employee-related costs for the periods presented:

	Three months ended September 30,				Nine months ended September 30,
(in thousands)	2018		2017		2018		2017
Capitalized employee-related costs	$	5,837	$	6,938	$	19,101	$	17,911

Costs incurred in the acquisition, exploration and development of oil and natural gas properties

The following table presents costs incurred in the acquisition, exploration and development of oil and natural gas properties, with asset retirement obligations included in evaluated property acquisition costs and development costs, for the periods presented:

	Three months ended September 30,				Nine months ended September 30,
(in thousands)	2018		2017		2018		2017
Property acquisition costs (see Note 3.a):							—
Evaluated	$	—	$	—	$	13,847	$	—
Unevaluated	—		—		2,790		—
Exploration costs	7,502		7,136		18,747		28,337
Development costs	139,748		160,359		467,582		397,255
Total costs incurred	$	147,250	$	167,495	$	502,966	$	425,592

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Debt (Tables)

9 Months Ended

Sep. 30, 2018

Debt Disclosure [Abstract]

Schedule of debt

The following table summarizes the net presentation of the Company's long-term debt and debt issuance costs on the unaudited consolidated balance sheets as of the dates presented:

	September 30, 2018							December 31, 2017
(in thousands)	Long-term debt		Debt issuance costs, net			Long-term debt, net		Long-term debt		Debt issuance costs, net			Long-term debt, net
January 2022 Notes	$	450,000	$	(3,254	)	$	446,746	$	450,000	$	(3,987	)	$	446,013
March 2023 Notes	350,000		(3,555		)	346,445		350,000		(4,158		)	345,842
Senior Secured Credit Facility(1)	170,000		—			170,000		—		—			—
Total	$	970,000	$	(6,809	)	$	963,191	$	800,000	$	(8,145	)	$	791,855

______________________________________________________________________________

(1) Debt issuance costs, net related to our Senior Secured Credit Facility of $7.4 million and $6.0 million as of September 30, 2018 and December 31, 2017, respectively, are reported in "Other assets, net" on the unaudited consolidated balance sheets.

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Stockholders' equity and stock-based compensation (Tables)

9 Months Ended

Sep. 30, 2018

Equity [Abstract]

Schedule of restricted stock award activity

The following table reflects the restricted stock award activity for the nine months ended September 30, 2018:

(in thousands, except for weighted-average grant-date fair value)	Restricted stock awards		Weighted-average grant-date fair value (per award)
Outstanding as of December 31, 2017	3,169		$	12.81
Granted	3,248		$	8.42
Forfeited	(266	)	$	10.35
Vested(1)	(1,851	)	$	12.21
Outstanding as of September 30, 2018	4,300		$	9.90

_____________________________________________________________________________

(1) The total intrinsic value of vested restricted stock awards for the nine months ended September 30, 2018 was $16.1 million.

Schedule of performance share award activity

The following table reflects the performance share award activity for the nine months ended September 30, 2018:

(in thousands, except for weighted-average grant-date fair value)	Performance share awards		Weighted-average grant-date fair value (per award)
Outstanding as of December 31, 2017	2,745		$	17.77
Granted(1)	1,389		$	9.22
Forfeited	(149	)	$	14.83
Vested(2)	(454	)	$	16.23
Outstanding as of September 30, 2018	3,531		$	14.55

______________________________________________________________________________

(1) The amount of stock potentially payable at the end of the performance period for the performance share awards granted on February 16, 2018 will be determined based on three criteria: (i) relative three-year total shareholder return comparing the Company's shareholder return to the shareholder return of the peer group specified in the award agreement ("RTSR Performance Percentage"), (ii) absolute three-year total shareholder return ("ATSR Appreciation") and (iii) three-year return on average capital employed ("ROACE Percentage"). The RTSR Performance Percentage, ATSR Appreciation and ROACE Percentage will be used to identify the "RTSR Factor," the "ATSR Factor" and the "ROACE Factor," respectively, which are used to compute the "Performance Multiple" and ultimately to determine the final number of shares associated with each performance share unit granted at the maturity date (with all partial shares rounded, as appropriate). In computing the Performance Multiple, the RTSR Factor is given a 25% weight, the ATSR Factor a 25% weight and the ROACE Factor a 50% weight. The $9.22 per unit grant-date fair value consists of a (i) $10.08 per unit grant-date fair value, determined utilizing a Monte Carlo simulation, for the combined (.25) RTSR Factor and (.25) ATSR Factor and (ii) $8.36 per unit grant-date fair value for the (.50) ROACE Factor determined based on the closing price of the Company's common stock on the New York Stock Exchange on February 16, 2018. These awards have a performance period of January 1, 2018 to December 31, 2020.

(2) The performance share awards granted on February 27, 2015 had a performance period of January 1, 2015 to December 31, 2017 and, as their performance criteria were not satisfied, resulted in a TSR modifier of 0% based on the Company finishing in the 36th percentile of its peer group for relative TSR. As such, the units were not converted into the Company's common stock during the first quarter of 2018.

Schedule of share-based payment award, equity instruments other than options, valuation assumptions

The assumptions used to estimate the combined fair value for the (.25) RTSR Factor and the (.25) ATSR Factor for the market criteria portion of the performance share awards granted on the date presented are as follows:

	February 16, 2018
Risk-free interest rate(1)	2.34		%
Dividend yield	—		%
Expected volatility(2)	65.49		%
Laredo stock closing price on grant date	$	8.36
Combined fair value per performance share award for the (.25) RTSR Factor and the (.25) ATSR Factor(3)	$	10.08

______________________________________________________________________________

(1) The risk-free interest rate was derived using a term-matched zero-coupon yield derived from the U.S. Treasury constant maturities yield curve on the grant date.

(2) The Company utilized its own historical volatility in order to develop the expected volatility.

(3) The market criteria portion of the performance share award represents 50% of each of the amount of stock potentially payable, if any, and the grant-date fair value of the award.

Schedule of allocated share-based compensation costs

The following has been recorded to stock-based compensation expense for the periods presented:

	Three months ended September 30,						Nine months ended September 30,
(in thousands)	2018			2017			2018			2017
Restricted stock award compensation	$	6,001		$	5,422		$	19,332		$	16,856
Stock option award compensation	970			1,159			3,010			3,600
Performance share award compensation	3,689			4,255			12,431			12,063
Total stock-based compensation, gross	10,660			10,836			34,773			32,519
Less amounts capitalized in oil and natural gas properties	(1,927		)	(1,870		)	(6,025		)	(5,642		)
Total stock-based compensation, net	$	8,733		$	8,966		$	28,748		$	26,877

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Derivatives (Tables)

9 Months Ended

Sep. 30, 2018

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Derivative instrument terminated

The following details the derivative that was terminated:

	Aggregate volumes (Bbl)	Floor price ($/Bbl)		Ceiling price ($/Bbl)		Contract period
Oil swap	1,095,000	$	52.12	$	52.12	January 2018 - December 2018

Summary of open positions and derivatives in place

The following table summarizes open positions as of September 30, 2018, and represents, as of such date, derivatives in place through December 2021 on annual production volumes:

	Remaining year 2018			Year 2019			Year 2020		Year 2021
Oil:
Puts:
Hedged volume (Bbl)	1,367,775			8,030,000			366,000		—
Weighted-average floor price ($/Bbl)	$	51.93		$	47.45		$	45.00	$	—
Swaps:
Hedged volume (Bbl)	—			657,000			695,400		—
Weighted-average price ($/Bbl)	$	—		$	53.45		$	52.18	$	—
Collars:
Hedged volume (Bbl)	1,030,400			—			1,134,600		912,500
Weighted-average floor price ($/Bbl)	$	41.43		$	—		$	45.00	$	45.00
Weighted-average ceiling price ($/Bbl)	$	60.00		$	—		$	76.13	$	71.00
Totals:
Total volume hedged with floor price (Bbl)	2,398,175			8,687,000			2,196,000		912,500
Weighted-average floor price ($/Bbl)	$	47.42		$	47.91		$	47.27	$	45.00
Total volume hedged with ceiling price (Bbl)	1,030,400			657,000			1,830,000		912,500
Weighted-average ceiling price ($/Bbl)	$	60.00		$	53.45		$	67.03	$	71.00
Basis Swaps:
WTI Midland to WTI Cushing:
Hedged volume (Bbl)	920,000			552,000			—		—
Weighted-average price ($/Bbl)	$	(0.56	)	$	(4.37	)	$	—	$	—
WTI Houston to WTI Midland:
Hedged volume (Bbl)	920,000			1,810,000			—		—
Weighted-average price ($/Bbl)	$	7.30		$	7.30		$	—	$	—
NGL:
Swaps - Purity Ethane:
Hedged volume (Bbl)	156,400			—			—		—
Weighted-average price ($/Bbl)	$	11.66		$	—		$	—	$	—
Swaps - Non-TET Propane:
Hedged volume (Bbl)	128,800			—			—		—
Weighted-average price ($/Bbl)	$	33.92		$	—		$	—	$	—
Swaps - Non-TET Normal Butane:
Hedged volume (Bbl)	46,000			—			—		—
Weighted-average price ($/Bbl)	$	38.22		$	—		$	—	$	—
Swaps - Non-TET Isobutane:
Hedged volume (Bbl)	18,400			—			—		—
Weighted-average price ($/Bbl)	$	38.33		$	—		$	—	$	—
Swaps - Non-TET Natural Gasoline:
Hedged volume (Bbl)	46,000			—			—		—
Weighted-average price ($/Bbl)	$	57.02		$	—		$	—	$	—
Total NGL volume hedged (Bbl)	395,600			—			—		—
TABLE CONTINUES ON NEXT PAGE

	Remaining year 2018			Year 2019			Year 2020			Year 2021
Natural gas:
Puts:
Hedged volume (MMBtu)	2,055,000			—			—			—
Weighted-average floor price ($/MMBtu)	$	2.50		$	—		$	—		$	—
Collars:
Hedged volume (MMBtu)	3,928,400			—			—			—
Weighted-average floor price ($/MMBtu)	$	2.50		$	—		$	—		$	—
Weighted-average ceiling price ($/MMBtu)	$	3.35		$	—		$	—		$	—
Totals:
Total volume hedged with floor price (MMBtu)	5,983,400			—			—			—
Weighted-average floor price ($/MMBtu)	$	2.50		$	—		$	—		$	—
Total volume hedged with ceiling price (MMBtu)	3,928,400			—			—			—
Weighted-average ceiling price ($/MMBtu)	$	3.35		$	—		$	—		$	—
Basis Swaps:
Hedged volume (MMBtu)	2,300,000			20,075,000			25,254,000			—
Weighted-average price ($/MMBtu)	$	(0.62	)	$	(1.05	)	$	(0.76	)	$	—

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Fair value measurements (Tables)

9 Months Ended

Sep. 30, 2018

Fair Value Disclosures [Abstract]

Schedule of fair value hierarchy for assets and liabilities measured at fair value on a recurring basis

The following tables summarize the Company's derivatives' fair value hierarchy by commodity and current and noncurrent assets and liabilities on a gross basis and the net presentation included in the "Derivatives" line items on the unaudited consolidated balance sheets as of the dates presented:

(in thousands)	Level 1		Level 2			Level 3			Total gross fair value			Amounts offset			Net fair value presented on the unaudited consolidated balance sheets
As of September 30, 2018:
Assets:
Current:
Oil derivatives	$	—	$	10,390		$	—		$	10,390		$	(10,390	)	$	—
NGL derivatives	—		—			—			—			—			—
Natural gas derivatives	—		13,002			—			13,002			(9,309		)	3,693
Oil derivative deferred premiums	—		—			—			—			—			—
Natural gas derivative deferred premiums	—		—			—			—			(619		)	(619		)
Noncurrent:
Oil derivatives	$	—	$	2,056		$	—		$	2,056		$	(2,056	)	$	—
NGL derivatives	—		—			—			—			—			—
Natural gas derivatives	—		474			—			474			(474		)	—
Oil derivative deferred premiums	—		—			—			—			—			—
Natural gas derivative deferred premiums	—		—			—			—			—			—
Liabilities:
Current:
Oil derivatives	$	—	$	(41,692	)	$	—		$	(41,692	)	$	10,390		$	(31,302	)
NGL derivatives	—		(4,807		)	—			(4,807		)	—			(4,807		)
Natural gas derivatives	—		233			—			233			9,309			9,542
Oil derivative deferred premiums	—		—			(17,265		)	(17,265		)	—			(17,265		)
Natural gas derivative deferred premiums	—		—			(847		)	(847		)	619			(228		)
Noncurrent:
Oil derivatives	$	—	$	(17,279	)	$	—		$	(17,279	)	$	2,056		$	(15,223	)
NGL derivatives	—		—			—			—			—			—
Natural gas derivatives	—		(2,468		)	—			(2,468		)	474			(1,994		)
Oil derivative deferred premiums	—		—			(3,728		)	(3,728		)	—			(3,728		)
Natural gas derivative deferred premiums	—		—			—			—			—			—
Net derivative liability positions	$	—	$	(40,091	)	$	(21,840	)	$	(61,931	)	$	—		$	(61,931	)

(in thousands)	Level 1		Level 2			Level 3			Total gross fair value			Amounts offset			Net fair value presented on the unaudited consolidated balance sheets
As of December 31, 2017:
Assets:
Current:
Oil derivatives	$	—	$	7,427		$	—		$	7,427		$	(3,721	)	$	3,706
NGL derivatives	—		—			—			—			—			—
Natural gas derivatives	—		10,546			—			10,546			(4,817		)	5,729
Oil derivative deferred premiums	—		—			—			—			(87		)	(87		)
Natural gas derivative deferred premiums	—		—			—			—			(2,456		)	(2,456		)
Noncurrent:
Oil derivatives	$	—	$	11,613		$	—		$	11,613		$	(6,087	)	$	5,526
NGL derivatives	—		—			—			—			—			—
Natural gas derivatives	—		934			—			934			(934		)	—
Oil derivative deferred premiums	—		—			—			—			(2,113		)	(2,113		)
Natural gas derivative deferred premiums	—		—			—			—			—			—
Liabilities:
Current:
Oil derivatives	$	—	$	(12,477	)	$	—		$	(12,477	)	$	3,721		$	(8,756	)
NGL derivatives	—		—			—			—			—			—
Natural gas derivatives	—		—			—			—			4,817			4,817
Oil derivative deferred premiums	—		—			(18,202		)	(18,202		)	87			(18,115		)
Natural gas derivative deferred premiums	—		—			(3,352		)	(3,352		)	2,456			(896		)
Noncurrent:
Oil derivatives	$	—	$	(2,389	)	$	—		$	(2,389	)	$	6,087		$	3,698
NGL derivatives	—		—			—			—			—			—
Natural gas derivatives	—		—			—			—			934			934
Oil derivative deferred premiums	—		—			(7,129		)	(7,129		)	2,113			(5,016		)
Natural gas derivative deferred premiums	—		—			—			—			—			—
Net derivative asset (liability) positions	$	—	$	15,654		$	(28,683	)	$	(13,029	)	$	—		$	(13,029	)

Actual cash payments required for deferred premium contracts

The following table presents payments required for derivative deferred premiums as of September 30, 2018 for the periods presented:

(in thousands)	September 30, 2018
Remaining 2018	$	5,405
2019	15,502
2020	1,295
Total	$	22,202

Summary of changes in net assets classified as Level 3 measurements

A summary of the changes in net assets and liabilities classified as Level 3 measurements for the periods presented are as follows:

	Three months ended September 30,						Nine months ended September 30,
(in thousands)	2018			2017			2018			2017
Balance of Level 3 at beginning of period	$	(25,026	)	$	(12,554	)	$	(28,683	)	$	(8,998	)
Change in net present value of derivative deferred premiums(1)	(168		)	(88		)	(564		)	(199		)
Total purchases and settlements of derivative deferred premiums:
Purchases	(2,101		)	(15,996		)	(7,523		)	(22,994		)
Settlements	5,455			1,448			14,930			5,001
Balance of Level 3 at end of period	$	(21,840	)	$	(27,190	)	$	(21,840	)	$	(27,190	)

____________________________________________________________________________

(1) These amounts are included in the "Interest expense" line item in the unaudited consolidated statements of operations.

Schedule of carrying amount and fair value of debt instruments

The Company has not elected to account for its debt instruments at fair value. The following table presents the carrying amounts and fair values of the Company's debt as of the dates presented:

	September 30, 2018				December 31, 2017
(in thousands)	Long-term debt		Fair value(1)		Long-term debt		Fair value(1)
January 2022 Notes	$	450,000	$	448,875	$	450,000	$	454,500
March 2023 Notes	350,000		352,730		350,000		364,105
Senior Secured Credit Facility	170,000		170,084		—		—
Total	$	970,000	$	971,689	$	800,000	$	818,605

______________________________________________________________________________

(1) The fair values of the debt outstanding on the January 2022 Notes and the March 2023 Notes were determined using the September 30, 2018 and December 31, 2017 quoted market price (Level 1) for each respective instrument. The fair value of the outstanding debt on the Senior Secured Credit Facility as of September 30, 2018 was estimated utilizing a pricing model for similar instruments (Level 2).

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Net income per common share (Tables)

9 Months Ended

Sep. 30, 2018

Earnings Per Share [Abstract]

Schedule of calculation of basic and diluted weighted-average common shares outstanding and net income per common share

The following table reflects the calculation of basic and diluted weighted-average common shares outstanding and net income per common share for the periods presented:

	Three months ended September 30,				Nine months ended September 30,
(in thousands, except for per share data)	2018		2017		2018		2017
Net income (numerator):
Net income—basic and diluted	$	55,050	$	11,027	$	175,022	$	140,413
Weighted-average common shares outstanding (denominator):
Basic(1)	230,605		239,306		233,228		239,017
Non-vested restricted stock awards(2)	935		650		911		845
Outstanding stock option awards(3)	99		130		68		129
Non-vested performance share awards(4)	—		4,801		—		4,702
Diluted	231,639		244,887		234,207		244,693
Net income per common share:
Basic	$	0.24	$	0.05	$	0.75	$	0.59
Diluted	$	0.24	$	0.05	$	0.75	$	0.57

_____________________________________________________________________________

(1) Weighted-average common shares outstanding used in the computation of basic and diluted net income per common share was computed taking into account share repurchases that occurred during the three and nine months ended September 30, 2018. See Note 7.a for additional discussion of the Company's share repurchase program.

(2) The effect of a significant portion of the non-vested restricted stock awards was excluded from the calculation of diluted net income per common share for the three and nine months ended September 30, 2018. The inclusion of these non-vested restricted stock awards would be anti-dilutive due to the sum of the assumed proceeds exceeding the average stock price during the period.

(3) The effect of the outstanding stock option awards, with the exception of those granted in 2016, was excluded from the calculation of diluted net income per common share for the three and nine months ended September 30, 2018. The inclusion of these stock option awards would be anti-dilutive as their exercise prices were greater than the average stock price during the period.

(4) The effect of the non-vested performance share awards was excluded from the calculation of diluted net income per common share for the three and nine months ended September 30, 2018 as the awards were below the respective agreements' payout thresholds. The effect of the non-vested performance share awards granted in 2018 was calculated utilizing the following criteria defined in Note 7.c: (i) the RTSR Performance Percentage, (ii) the ATSR Appreciation and (iii) the ROACE Percentage from the beginning of the performance period to September 30, 2018 for each of the criteria to identify the RTSR Factor, the ATSR Factor and the ROACE Factor, respectively, which were used to compute the Performance Multiple to determine the number of shares for the dilutive effect. The effects of the non-vested performance share awards granted in 2016 and 2017 were calculated utilizing the Company's TSR from the beginning of each performance share awards' respective performance period to September 30, 2018 in comparison to the TSR of the peers specified in each respective performance share awards' agreement.

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Supplemental cash flow information (Tables)

9 Months Ended

Sep. 30, 2018

Supplemental Cash Flow Elements [Abstract]

Schedule of non-cash investing & financing and supplemental cash flow information

The following table presents supplemental cash flow information:

	Nine months ended September 30,
(in thousands)	2018			2017
Non-cash investing activities:
(Decrease) increase in accrued capital expenditures	$	(44,533	)	$	39,156
Capitalized stock-based compensation	$	6,025		$	5,642
Capitalized asset retirement costs	$	719		$	670
Other supplemental cash flow information:
Capitalized interest	$	710		$	756

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Asset retirement obligations (Tables)

9 Months Ended

Sep. 30, 2018

Asset Retirement Obligation Disclosure [Abstract]

Schedule of asset retirement obligation liability

The following table reconciles the Company's asset retirement obligation liability associated with tangible long-lived assets:

	Nine months ended September 30,
(in thousands)	2018			2017
Liability at beginning of period	$	55,506		$	52,207
Liabilities added due to acquisitions, drilling, midstream service asset construction and other	719			492
Accretion expense	3,341			2,822
Liabilities settled due to plugging and abandonment or sale	(2,246		)	(1,228		)
Revision of estimates	—			178
Liability at end of period	$	57,320		$	54,471

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Subsidiary guarantors (Tables)

9 Months Ended

Sep. 30, 2018

Condensed Financial Information Disclosure [Abstract]

Schedule of condensed consolidating balance sheet

Condensed consolidating balance sheet

September 30, 2018

(in thousands)	Laredo		Subsidiary Guarantors		Intercompany eliminations			Consolidated company
Accounts receivable, net	$	103,109	$	14,472	$	—		$	117,581
Other current assets	70,413		1,533		—			71,946
Oil and natural gas properties, net	1,951,518		9,146		(22,174		)	1,938,490
Midstream service assets, net	—		132,415		—			132,415
Other fixed assets, net	42,071		193		—			42,264
Investment in subsidiaries	130,439		—		(130,439		)	—
Other noncurrent assets, net	13,113		3,965		—			17,078
Total assets	$	2,310,663	$	161,724	$	(152,613	)	$	2,319,774
Accounts payable and accrued liabilities	$	68,037	$	18,600	$	—		$	86,637
Other current liabilities	162,893		9,739		—			172,632
Long-term debt, net	963,191		—		—			963,191
Other noncurrent liabilities	79,256		2,946		—			82,202
Stockholders' equity	1,037,286		130,439		(152,613		)	1,015,112
Total liabilities and stockholders' equity	$	2,310,663	$	161,724	$	(152,613	)	$	2,319,774

Condensed consolidating balance sheet

December 31, 2017

(in thousands)	Laredo			Subsidiary Guarantors			Intercompany eliminations			Consolidated company
Accounts receivable, net	$	79,413		$	21,232		$	—		$	100,645
Other current assets	132,219			2,518			—			134,737
Oil and natural gas properties, net	1,596,834			9,220			(16,715		)	1,589,339
Midstream service assets, net	—			138,325			—			138,325
Other fixed assets, net	40,344			377			—			40,721
Investment in subsidiaries	(7,566		)	—			7,566			—
Other noncurrent assets, net	15,526			3,996			—			19,522
Total assets	$	1,856,770		$	175,668		$	(9,149	)	$	2,023,289
Accounts payable and accrued liabilities	$	34,550		$	23,791		$	—		$	58,341
Other current liabilities	193,104			25,974			—			219,078
Long-term debt, net	791,855			—			—			791,855
Other noncurrent liabilities	54,967			133,469			—			188,436
Stockholders' equity	782,294			(7,566		)	(9,149		)	765,579
Total liabilities and stockholders' equity	$	1,856,770		$	175,668		$	(9,149	)	$	2,023,289

Schedule of condensed consolidating statement of operations

Condensed consolidating statement of operations

For the three months ended September 30, 2018

(in thousands)	Laredo			Subsidiary Guarantors			Intercompany eliminations			Consolidated company
Total revenues	$	225,970		$	73,463		$	(19,687	)	$	279,746
Total costs and expenses	123,942			69,146			(17,752		)	175,336
Operating income	102,028			4,317			(1,935		)	104,410
Interest expense	(14,845		)	—			—			(14,845		)
Other non-operating expense	(28,811		)	(26		)	(4,291		)	(33,128		)
Income before income taxes	58,372			4,291			(6,226		)	56,437
Income tax expense	(1,387		)	—			—			(1,387		)
Net income	$	56,985		$	4,291		$	(6,226	)	$	55,050

Condensed consolidating statement of operations

For the three months ended September 30, 2017

(in thousands)	Laredo			Subsidiary Guarantors		Intercompany eliminations			Consolidated company
Total revenues	$	157,902		$	63,686	$	(15,770	)	$	205,818
Total costs and expenses	97,686			62,245		(14,565		)	145,366
Operating income	60,216			1,441		(1,205		)	60,452
Interest expense	(23,697		)	—		—			(23,697		)
Other non-operating income (expense)	(24,287		)	2,290		(3,731		)	(25,728		)
Income before income taxes	12,232			3,731		(4,936		)	11,027
Income tax	—			—		—			—
Net income	$	12,232		$	3,731	$	(4,936	)	$	11,027

Condensed consolidating statement of operations

For the nine months ended September 30, 2018

(in thousands)	Laredo			Subsidiary Guarantors			Intercompany eliminations			Consolidated company
Total revenues	$	632,419		$	312,784		$	(54,715	)	$	890,488
Total costs and expenses	345,232			302,143			(49,256		)	598,119
Operating income	287,187			10,641			(5,459		)	292,369
Interest expense	(42,787		)	—			—			(42,787		)
Other non-operating expense	(62,532		)	(1,307		)	(9,334		)	(73,173		)
Income before income taxes	181,868			9,334			(14,793		)	176,409
Income tax expense	(1,387		)	—			—			(1,387		)
Net income	$	180,481		$	9,334		$	(14,793	)	$	175,022

Condensed consolidating statement of operations

For the nine months ended September 30, 2017

(in thousands)	Laredo			Subsidiary Guarantors		Intercompany eliminations			Consolidated company
Total revenues	$	439,269		$	190,926	$	(48,370	)	$	581,825
Total costs and expenses	276,855			183,310		(42,179		)	417,986
Operating income	162,414			7,616		(6,191		)	163,839
Interest expense	(69,590		)	—		—			(69,590		)
Other non-operating income	53,780			7,622		(15,238		)	46,164
Income before income taxes	146,604			15,238		(21,429		)	140,413
Income tax	—			—		—			—
Net income	$	146,604		$	15,238	$	(21,429	)	$	140,413

Schedule of condensed consolidating statement of cash flows

Condensed consolidating statement of cash flows

For the nine months ended September 30, 2018

(in thousands)	Laredo			Subsidiary Guarantors			Intercompany eliminations			Consolidated company
Net cash provided by operating activities	$	402,065		$	15,797		$	(9,334	)	$	408,528
Change in investment between affiliates	3,115			(12,449		)	9,334			—
Capital expenditures and other	(533,083		)	(3,348		)	—			(536,431		)
Net cash provided by financing activities	66,151			—			—			66,151
Net decrease in cash and cash equivalents	(61,752		)	—			—			(61,752		)
Cash and cash equivalents, beginning of period	112,158			1			—			112,159
Cash and cash equivalents, end of period	$	50,406		$	1		$	—		$	50,407

Condensed consolidating statement of cash flows

For the nine months ended September 30, 2017

(in thousands)	Laredo			Subsidiary Guarantors			Intercompany eliminations			Consolidated company
Net cash provided by operating activities	$	273,309		$	13,980		$	(15,238	)	$	272,051
Change in investment between affiliates	(36,890		)	21,652			15,238			—
Capital expenditures and other	(321,261		)	(35,632		)	—			(356,893		)
Net cash provided by financing activities	72,988			—			—			72,988
Net decrease in cash and cash equivalents	(11,854		)	—			—			(11,854		)
Cash and cash equivalents, beginning of period	32,671			1			—			32,672
Cash and cash equivalents, end of period	$	20,817		$	1		$	—		$	20,818

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Acquisitions and divestitures - 2018 acquisitions of evaluated and unevaluated oil and natural gas properties (Details) $ in Thousands	9 Months Ended
	Sep. 30, 2018 USD ($) a property	Sep. 30, 2017 USD ($)
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Acquisitions of oil and natural gas properties	$ 16,340	$ 0
Leasehold interests and working interests acquired in glasscock county
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Net acres | a	895
Number of producing wells | property	47
Acquisitions of oil and natural gas properties	$ 16,300

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Acquisitions and divestitures - 2018 divestitures of evaluated and unevaluated oil and natural gas properties and midstream assets (Details) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018 USD ($) a property	Sep. 30, 2017 USD ($)	Sep. 30, 2018 USD ($) a property	Sep. 30, 2017 USD ($)
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Loss on disposal of assets, net	$ (616)	$ (991)	$ (4,591)	$ (400)
Glasscock and Howard | Disposal Group, Disposed of by Sale, Not Discontinued Operations
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Net acres | a	3,070		3,070
Number of producing wells | property	24		24
Proceeds, net of working capital and post-closing adjustments	$ 12,000		$ 12,000
Adjustments to oil and natural gas properties	$ 11,500		11,500
Loss on disposal of assets, net			$ (1,000)

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Acquisitions and divestitures - 2017 Medallion sale (Details) - USD ($) $ in Thousands			3 Months Ended	9 Months Ended		10 Months Ended
	Feb. 01, 2018	Oct. 30, 2017	Feb. 01, 2018	Sep. 30, 2018	Sep. 30, 2017	Oct. 29, 2017
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Proceeds from disposition of equity method investee, net of selling costs (see Note 3.c)				$ 1,655	$ 0
Variable interest entity, not primary beneficiary | Medallion Gathering And Processing LLC
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Ownership percentage by noncontrolling owners						49.00%
Ownership percentage held by investment partner						51.00%
Variable interest entity super majority voting percentage required for key decisions						75.00%
Percent of ownership interests sold		100.00%
Ownership interest		49.00%
Proceeds from disposition of equity method investee, net of selling costs (see Note 3.c)	$ 1,700	$ 829,600	$ 831,300
Global infrastructure partners | Variable interest entity, not primary beneficiary | Medallion Gathering And Processing LLC
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Cash consideration for sale		$ 1,825,000

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Acquisitions and divestitures - 2017 divestiture of evaluated and unevaluated oil and natural gas properties (Details) - Disposal Group, Disposed of by Sale, Not Discontinued Operations - Midland Basin $ in Millions	Jan. 31, 2017 USD ($) a property
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Net acres | a	2,900
Number of producing wells | property	16
Sale price	$ 59.7
Proceeds, net of working capital and post-closing adjustments	$ 59.5

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Revenue recognition - Impact of ASC 606 adoption (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017	Dec. 31, 2017
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Revenues	$ 279,746	$ 205,818	$ 890,488	$ 581,825
Other operating expenses	1,114	1,443	3,341	3,906
Net income	55,050	11,027	175,022	140,413
Retained earnings	(1,352,968)		(1,352,968)		$ (1,669,108)
As computed under ASC 605
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Other operating expenses	1,353		5,865
Net income	55,050		175,022
Difference between Revenue Guidance in Effect before and after Topic 606 | Accounting Standards Update 2014-09
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Other operating expenses	(239)		(2,524)
Net income	0		0
Retained earnings					141,100
Oil sales
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Revenues	160,007	110,194	469,972	313,875
Oil sales | As computed under ASC 605
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Revenues	160,246		472,496
Oil sales | Difference between Revenue Guidance in Effect before and after Topic 606 | Accounting Standards Update 2014-09
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Revenues	(239)		(2,524)
NGL sales
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Revenues	50,814	27,700	115,979	68,329
NGL sales | As computed under ASC 605
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Revenues	50,814		115,979
NGL sales | Difference between Revenue Guidance in Effect before and after Topic 606 | Accounting Standards Update 2014-09
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Revenues	0		0
Natural gas sales
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Revenues	15,043	$ 19,664	45,908	$ 55,927
Natural gas sales | As computed under ASC 605
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Revenues	15,043		45,908
Natural gas sales | Difference between Revenue Guidance in Effect before and after Topic 606 | Accounting Standards Update 2014-09
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Revenues	$ 0		$ 0
Variable interest entity, not primary beneficiary | Medallion Gathering And Processing LLC
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Maximum loss exposure					$ 141,100

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Revenue recognition - Revenue recognition (Details)	9 Months Ended
	Sep. 30, 2018
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Practical expedient in ASC 606-10-50-14	the Company has utilized the practical expedient in ASC 606-10-50-14 that exempts the Company from disclosure of the transaction price allocated to remaining performance obligations if the performance obligation is part of a contract that has an original expected duration of one year or less
Minimum
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Settlement statements and payments period	30 days
Maximum
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Settlement statements and payments period	90 days

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Property and equipment - Company property and equipment (Details) - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017
Property, Plant and Equipment [Line Items]
Evaluated oil and natural gas properties	$ 6,589,327	$ 6,070,940
Less accumulated depletion and impairment	(4,798,527)	(4,657,466)
Evaluated oil and natural gas properties, net	1,790,800	1,413,474
Unevaluated properties not being depleted	147,690	175,865
Property and equipment, net	2,113,169	1,768,385
Midstream service assets
Property, Plant and Equipment [Line Items]
Midstream service assets	171,740	171,427
Less accumulated depreciation and impairment	(39,325)	(33,102)
Property and equipment, net	132,415	138,325
Depreciable other fixed assets
Property, Plant and Equipment [Line Items]
Depreciable other fixed assets	50,420	48,957
Less accumulated depreciation and impairment	(26,415)	(23,150)
Property and equipment, net	24,005	25,807
Land
Property, Plant and Equipment [Line Items]
Depreciable other fixed assets	$ 18,259	$ 14,914

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Property and equipment - Other property and equipment information (Details) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018 USD ($) $ / Boe	Sep. 30, 2017 USD ($) $ / Boe	Sep. 30, 2018 USD ($) $ / Boe	Sep. 30, 2017 USD ($) $ / Boe
Property, Plant and Equipment [Abstract]
Depletion expense (in dollars per BOE) | $ / Boe	7.94	6.80	7.67	6.57
Capitalized employee-related costs | $	$ 5,837	$ 6,938	$ 19,101	$ 17,911

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Property and equipment - Costs incurred in the acquisition, exploration and development of oil and natural gas properties (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Property acquisition costs (see Note 3.a):
Evaluated	$ 0	$ 0	$ 13,847	$ 0
Unevaluated	0	0	2,790	0
Exploration costs	7,502	7,136	18,747	28,337
Development costs	139,748	160,359	467,582	397,255
Total costs incurred	$ 147,250	$ 167,495	$ 502,966	$ 425,592

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Debt - March 2023 Notes (Details) - Senior Notes - March 2023 Notes	Mar. 18, 2015 USD ($)
Debt Instrument [Line Items]
Face amount of debt	$ 350,000,000.0
Interest rate (as a percent)	6.25%
From March 15, 2018 until March 15, 2021
Debt Instrument [Line Items]
Debt call price percentage	104.688%
On or After March 15, 2021
Debt Instrument [Line Items]
Debt call price percentage	100.00%

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Debt - January 2022 Notes (Details) - Senior Notes - January 2022 Notes	Jan. 23, 2014 USD ($)
Debt Instrument [Line Items]
Face amount of debt	$ 450,000,000.0
Interest rate (as a percent)	5.625%
From January 15, 2017 until January 15, 2020
Debt Instrument [Line Items]
Debt call price percentage	102.813%
On or After January 15, 2020
Debt Instrument [Line Items]
Debt call price percentage	100.00%

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Debt - May 2022 Notes (Details) - Senior Notes - May 2022 Notes - USD ($)	Nov. 29, 2017	Apr. 27, 2012
Debt Instrument [Line Items]
Face amount of debt		$ 500,000,000
Interest rate (as a percent)		7.375%
Repurchased face amount of debt	$ 500,000,000.0
Debt call price percentage	103.688%
Loss on extinguishment of debt	$ 23,800,000

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Debt - Senior Secured Credit Facility (Details) - Secured debt - USD ($)	3 Months Ended	9 Months Ended
	Sep. 30, 2018	Sep. 30, 2018	Dec. 31, 2017
Senior Secured Credit Facility
Debt Instrument [Line Items]
Early maturity date description	90 years
Maximum borrowing capacity	$ 2,000,000,000.0	$ 2,000,000,000.0
Current borrowing capacity	1,300,000,000	1,300,000,000
Aggregate elected commitment	1,200,000,000.0	1,200,000,000.0
Amount outstanding	$ 170,000,000	$ 170,000,000
Credit facility, interest rate at period end (as a percent)	3.44%	3.44%
Senior Secured Credit Facility | Minimum
Debt Instrument [Line Items]
Line of credit facility, unused capacity, commitment fee percentage		0.375%
Senior Secured Credit Facility | Maximum
Debt Instrument [Line Items]
Line of credit facility, unused capacity, commitment fee percentage		0.50%
Letter of Credit
Debt Instrument [Line Items]
Maximum borrowing capacity	$ 80,000,000.0	$ 80,000,000.0
Letters of credit outstanding	$ 0	$ 0	$ 0

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Debt - Long-term debt, net (Details) - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017
Debt Instrument [Line Items]
Long-term debt	$ 970,000	$ 800,000
Debt issuance costs, net	(6,809)	(8,145)
Long-term debt, net	963,191	791,855
Senior Notes | January 2022 Notes
Debt Instrument [Line Items]
Long-term debt	450,000	450,000
Debt issuance costs, net	(3,254)	(3,987)
Long-term debt, net	446,746	446,013
Senior Notes | March 2023 Notes
Debt Instrument [Line Items]
Long-term debt	350,000	350,000
Debt issuance costs, net	(3,555)	(4,158)
Long-term debt, net	346,445	345,842
Secured debt | Senior Secured Credit Facility
Debt Instrument [Line Items]
Long-term debt	170,000	0
Debt issuance costs, net	0	0
Long-term debt, net	170,000	0
Secured debt | Senior Secured Credit Facility | Other Assets
Debt Instrument [Line Items]
Debt issuance costs related to line of credit arrangements	$ 7,400	$ 6,000

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Stockholders' equity and stock-based compensation - Share repurchase program - Narrative (Details) - USD ($)	3 Months Ended	9 Months Ended
	Sep. 30, 2018	Sep. 30, 2018	Feb. 28, 2018
Equity [Abstract]
Share repurchase program, authorized amount			$ 200,000,000
Shares repurchased (in shares)	1,170,190	11,048,742
Weighted-average price per repurchased share (in dollars per share)	$ 8.41	$ 8.78
Shares repurchased and retired, value	$ 9,900,000	$ 97,100,000

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Stockholders' equity and stock-based compensation - Restricted Stock Awards - Narrative (Details) $ in Millions	9 Months Ended
	Sep. 30, 2018 USD ($) shares
Restricted stock awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation not yet recognized | $	$ 26.5
Stock-based compensation not yet recognized, period for recognition (in years)	1 year 10 months 13 days
Restricted stock awards | Vesting Alternative One, One Year From Grant Date
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting percentage	33.00%
Restricted stock awards | Vesting Alternative One, Two Years From Grant Date
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting percentage	33.00%
Restricted stock awards | Vesting Alternative One, Three Years From Grant Date
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting percentage	34.00%
Restricted stock awards | Vesting Alternative Two, Fully One Year From Grant Date
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting percentage	100.00%
Restricted stock awards | Non-employee Director | Vesting Alternative Two, Fully One Year From Grant Date
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting percentage	100.00%
Restricted stock awards | Non-employee Director | Vesting Alternative Three, Immediately on Grant Date
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting percentage	100.00%
Long-Term Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares authorized for issuance | shares	24,350,000

XML

Stockholders' equity and stock-based compensation - Restricted Stock Awards - Outstanding restricted stock awards (Details) - Restricted stock awards $ / shares in Units, shares in Thousands, $ in Millions	9 Months Ended
	Sep. 30, 2018 USD ($) $ / shares shares
Restricted stock awards
Outstanding at the beginning of the period (in shares) | shares	3,169
Granted (in shares) | shares	3,248
Forfeited (in shares) | shares	(266)
Vested (in shares) | shares	(1,851)
Outstanding at the end of the period (in shares) | shares	4,300
Weighted-average grant-date fair value (per award)
Outstanding at the beginning of the period (in dollars per share) | $ / shares	$ 12.81
Granted (in dollars per share) | $ / shares	8.42
Forfeited (in dollars per share) | $ / shares	10.35
Vested (in dollars per share) | $ / shares	12.21
Outstanding at the end of the period (in dollars per share) | $ / shares	$ 9.90
Equity instruments other than options, aggregate intrinsic value, vested | $	$ 16.1

XML

Stockholders' equity and stock-based compensation - Stock Option Awards - Narrative (Details) - Stock option awards $ / shares in Units, $ in Millions	9 Months Ended
	Sep. 30, 2018 USD ($) anniversary installment $ / shares shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of installments over which awards vest and are exercisable | installment	4
Number of anniversaries over which awards vest and are exercisable | anniversary	4
Number of options outstanding (in shares)	2,577,205
Options outstanding, weighted average exercise price (in dollars per share) | $ / shares	$ 12.66
Options outstanding, weighted-average remaining contractual term	6 years 4 months 15 days
Granted (in shares)	0
Exercises (in shares)	0
Forfeitures (in shares)	0
Expired or cancellations (in shares)	0
Requisite service period of the awards	4 years
Share-based compensation, not yet recognized, stock options | $	$ 5.0
Stock-based compensation not yet recognized, period for recognition (in years)	1 year 8 months 2 days

XML

Stockholders' equity and stock-based compensation - Performance Share Awards - Narrative (Details) - USD ($) $ / shares in Units, $ in Millions		9 Months Ended
	Feb. 16, 2018	Sep. 30, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
RTSR Factor weight	25.00%
ATSR Factor weight	25.00%
Performance share awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Requisite service period of the awards		3 years
Grant-date fair value (in dollars per share)		$ 9.22
Stock-based compensation not yet recognized		$ 18.6
Stock-based compensation not yet recognized, period for recognition		1 year 8 months 19 days
Performance share awards with market criteria
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Grant-date fair value (in dollars per share)	$ 10.08
February 16, 2018 | Performance share awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Grant-date fair value (in dollars per share)		$ 9.22
February 16, 2018 | Performance share awards with market criteria
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
RTSR Factor weight		25.00%
ATSR Factor weight		25.00%
Grant-date fair value (in dollars per share)		$ 10.08
February 16, 2018 | Performance share awards with performance criteria
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
ROACE Factor weight		50.00%
Grant-date fair value (in dollars per share)		$ 8.36
February 27, 2015 | Performance share awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
TSR Modifier		0

XML

Stockholders' equity and stock-based compensation - Performance Share Awards - award activity (Details) - Performance share awards shares in Thousands	9 Months Ended
	Sep. 30, 2018 $ / shares shares
Performance share awards
Outstanding at the beginning of the period (in shares) | shares	2,745
Granted (in shares) | shares	1,389
Forfeited (in shares) | shares	(149)
Vested (in shares) | shares	(454)
Outstanding at the end of the period (in shares) | shares	3,531
Weighted-average grant-date fair value (per award)
Outstanding at the beginning of the period (in dollars per share) | $ / shares	$ 17.77
Granted (in dollars per share) | $ / shares	9.22
Forfeited (in dollars per share) | $ / shares	14.83
Vested (in dollars per share) | $ / shares	16.23
Outstanding at the end of the period (in dollars per share) | $ / shares	$ 14.55

XML

Stockholders' equity and stock-based compensation - Performance Share Awards - assumptions used to estimate the fair value (Details)	Feb. 16, 2018 $ / shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
RTSR Factor weight	25.00%
ATSR Factor weight	25.00%
Percentage of stock potentially payable	50.00%
Performance share awards with market criteria
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Risk-free interest rate	2.34%
Dividend yield	0.00%
Expected volatility	65.49%
Laredo stock closing price on grant date (in dollars per share)	$ 8.36
Grant-date fair value (in dollars per share)	$ 10.08

XML

Stockholders' equity and stock-based compensation - Stock-based compensation expense (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock-based compensation, gross	$ 10,660	$ 10,836	$ 34,773	$ 32,519
Less amounts capitalized in oil and natural gas properties	(1,927)	(1,870)	(6,025)	(5,642)
Total stock-based compensation, net	8,733	8,966	28,748	26,877
Restricted stock award compensation
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock-based compensation, gross	6,001	5,422	19,332	16,856
Stock option award compensation
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock-based compensation, gross	970	1,159	3,010	3,600
Performance share award compensation
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock-based compensation, gross	$ 3,689	$ 4,255	$ 12,431	$ 12,063

XML

Derivatives - Commodity derivatives (Details) $ in Thousands	9 Months Ended
	Sep. 30, 2018 USD ($)	Sep. 30, 2017 USD ($) derivative
Derivative [Line Items]
Settlements received for early terminations of derivatives, net	$ 0	$ 4,234
Early contract termination | Commodity derivatives | Derivatives not designated as hedges
Derivative [Line Items]
Settlements received for early terminations of derivatives, net		$ 4,200
Number of restructuring derivatives | derivative		1

XML

Derivatives - Commodity derivative contracts terminated (Details) - Oil derivatives - Early contract termination - Swap January 2018 to December 2018	Sep. 30, 2017 bbl $ / bbl
Derivative [Line Items]
Aggregate volumes (Bbl) | bbl	1,095,000
Floor price ($/Bbl)	52.12
Ceiling price ($/Bbl)	52.12

XML

Derivatives - Derivative positions (Details) - Not designated as hedges	9 Months Ended
	Sep. 30, 2018 MMBTU $ / bbl $ / MMBTU bbl
Puts remainder of year | Oil derivatives
Derivative [Line Items]
Hedged Volume (Bbl)	1,367,775
Weighted-average price (in dollars per Bbl/MMbtu) | $ / bbl	51.93
Puts remainder of year | Natural gas derivatives
Derivative [Line Items]
Hedged Volume (MMbtu) | MMBTU	2,055,000
Weighted-average price (in dollars per Bbl/MMbtu) | $ / MMBTU	2.50
Puts next year | Oil derivatives
Derivative [Line Items]
Hedged Volume (Bbl)	8,030,000
Weighted-average price (in dollars per Bbl/MMbtu) | $ / bbl	47.45
Puts next year | Natural gas derivatives
Derivative [Line Items]
Hedged Volume (MMbtu) | MMBTU	0
Weighted-average price (in dollars per Bbl/MMbtu) | $ / MMBTU	0.00
Puts year three | Oil derivatives
Derivative [Line Items]
Hedged Volume (Bbl)	366,000
Weighted-average price (in dollars per Bbl/MMbtu) | $ / bbl	45.00
Puts year three | Natural gas derivatives
Derivative [Line Items]
Hedged Volume (MMbtu) | MMBTU	0
Weighted-average price (in dollars per Bbl/MMbtu) | $ / MMBTU	0.00
Puts year four | Oil derivatives
Derivative [Line Items]
Hedged Volume (Bbl)	0
Weighted-average price (in dollars per Bbl/MMbtu) | $ / bbl	0.00
Puts year four | Natural gas derivatives
Derivative [Line Items]
Hedged Volume (MMbtu) | MMBTU	0
Weighted-average price (in dollars per Bbl/MMbtu) | $ / MMBTU	0.00
Swaps remainder of year | Oil derivatives
Derivative [Line Items]
Hedged Volume (Bbl)	0
Weighted-average price (in dollars per Bbl/MMbtu) | $ / bbl	0.00
Swaps remainder of year | Ethane | NGL derivatives
Derivative [Line Items]
Hedged Volume (Bbl)	156,400
Weighted-average price (in dollars per Bbl/MMbtu) | $ / bbl	11.66
Swaps remainder of year | Propane | NGL derivatives
Derivative [Line Items]
Hedged Volume (Bbl)	128,800
Weighted-average price (in dollars per Bbl/MMbtu) | $ / bbl	33.92
Swaps remainder of year | Normal Butane | NGL derivatives
Derivative [Line Items]
Hedged Volume (Bbl)	46,000
Weighted-average price (in dollars per Bbl/MMbtu) | $ / bbl	38.22
Swaps remainder of year | Isobutane | NGL derivatives
Derivative [Line Items]
Hedged Volume (Bbl)	18,400
Weighted-average price (in dollars per Bbl/MMbtu) | $ / bbl	38.33
Swaps remainder of year | Natural Gasoline | NGL derivatives
Derivative [Line Items]
Hedged Volume (Bbl)	46,000
Weighted-average price (in dollars per Bbl/MMbtu) | $ / bbl	57.02
Swaps next year | Oil derivatives
Derivative [Line Items]
Hedged Volume (Bbl)	657,000
Weighted-average price (in dollars per Bbl/MMbtu) | $ / bbl	53.45
Swaps next year | Ethane | NGL derivatives
Derivative [Line Items]
Hedged Volume (Bbl)	0
Swaps next year | Propane | NGL derivatives
Derivative [Line Items]
Hedged Volume (Bbl)	0
Swaps next year | Normal Butane | NGL derivatives
Derivative [Line Items]
Hedged Volume (Bbl)	0
Swaps next year | Isobutane | NGL derivatives
Derivative [Line Items]
Hedged Volume (Bbl)	0
Swaps next year | Natural Gasoline | NGL derivatives
Derivative [Line Items]
Hedged Volume (Bbl)	0
Swaps year three | Oil derivatives
Derivative [Line Items]
Hedged Volume (Bbl)	695,400
Weighted-average price (in dollars per Bbl/MMbtu) | $ / bbl	52.18
Swaps year three | Ethane | NGL derivatives
Derivative [Line Items]
Hedged Volume (Bbl)	0
Swaps year three | Propane | NGL derivatives
Derivative [Line Items]
Hedged Volume (Bbl)	0
Swaps year three | Normal Butane | NGL derivatives
Derivative [Line Items]
Hedged Volume (Bbl)	0
Swaps year three | Isobutane | NGL derivatives
Derivative [Line Items]
Hedged Volume (Bbl)	0
Swaps year three | Natural Gasoline | NGL derivatives
Derivative [Line Items]
Hedged Volume (Bbl)	0
Swaps year four | Ethane | NGL derivatives
Derivative [Line Items]
Hedged Volume (Bbl)	0
Swaps year four | Propane | NGL derivatives
Derivative [Line Items]
Hedged Volume (Bbl)	0
Swaps year four | Normal Butane | NGL derivatives
Derivative [Line Items]
Hedged Volume (Bbl)	0
Swaps year four | Isobutane | NGL derivatives
Derivative [Line Items]
Hedged Volume (Bbl)	0
Swaps year four | Natural Gasoline | NGL derivatives
Derivative [Line Items]
Hedged Volume (Bbl)	0
Collars remainder of year | Oil derivatives
Derivative [Line Items]
Hedged Volume (Bbl)	1,030,400
Collars remainder of year | Natural gas derivatives
Derivative [Line Items]
Hedged Volume (MMbtu) | MMBTU	3,928,400
Collars remainder of year | Floor | Oil derivatives
Derivative [Line Items]
Weighted-average price (in dollars per Bbl/MMbtu) | $ / bbl	41.43
Collars remainder of year | Floor | Natural gas derivatives
Derivative [Line Items]
Weighted-average price (in dollars per Bbl/MMbtu) | $ / MMBTU	2.50
Collars remainder of year | Ceiling | Oil derivatives
Derivative [Line Items]
Weighted-average price (in dollars per Bbl/MMbtu) | $ / bbl	60.00
Collars remainder of year | Ceiling | Natural gas derivatives
Derivative [Line Items]
Weighted-average price (in dollars per Bbl/MMbtu) | $ / MMBTU	3.35
Collars next year | Oil derivatives
Derivative [Line Items]
Hedged Volume (Bbl)	0
Collars next year | Natural gas derivatives
Derivative [Line Items]
Hedged Volume (MMbtu) | MMBTU	0
Collars next year | Floor | Oil derivatives
Derivative [Line Items]
Weighted-average price (in dollars per Bbl/MMbtu) | $ / bbl	0.00
Collars next year | Floor | Natural gas derivatives
Derivative [Line Items]
Weighted-average price (in dollars per Bbl/MMbtu) | $ / MMBTU	0.00
Collars next year | Ceiling | Oil derivatives
Derivative [Line Items]
Weighted-average price (in dollars per Bbl/MMbtu) | $ / bbl	0.00
Collars next year | Ceiling | Natural gas derivatives
Derivative [Line Items]
Weighted-average price (in dollars per Bbl/MMbtu) | $ / MMBTU	0.00
Collars year three | Oil derivatives
Derivative [Line Items]
Hedged Volume (Bbl)	1,134,600
Collars year three | Natural gas derivatives
Derivative [Line Items]
Hedged Volume (MMbtu) | MMBTU	0
Collars year three | Floor | Oil derivatives
Derivative [Line Items]
Weighted-average price (in dollars per Bbl/MMbtu) | $ / bbl	45.00
Collars year three | Floor | Natural gas derivatives
Derivative [Line Items]
Weighted-average price (in dollars per Bbl/MMbtu) | $ / MMBTU	0.00
Collars year three | Ceiling | Oil derivatives
Derivative [Line Items]
Weighted-average price (in dollars per Bbl/MMbtu) | $ / bbl	76.13
Collars year three | Ceiling | Natural gas derivatives
Derivative [Line Items]
Weighted-average price (in dollars per Bbl/MMbtu) | $ / MMBTU	0.00
Collars year four | Oil derivatives
Derivative [Line Items]
Hedged Volume (Bbl)	912,500
Collars year four | Natural gas derivatives
Derivative [Line Items]
Hedged Volume (MMbtu) | MMBTU	0
Collars year four | Floor | Oil derivatives
Derivative [Line Items]
Weighted-average price (in dollars per Bbl/MMbtu) | $ / bbl	45.00
Collars year four | Floor | Natural gas derivatives
Derivative [Line Items]
Weighted-average price (in dollars per Bbl/MMbtu) | $ / MMBTU	0.00
Collars year four | Ceiling | Oil derivatives
Derivative [Line Items]
Weighted-average price (in dollars per Bbl/MMbtu) | $ / bbl	71.00
Collars year four | Ceiling | Natural gas derivatives
Derivative [Line Items]
Weighted-average price (in dollars per Bbl/MMbtu) | $ / MMBTU	0.00
Total Commodity Derivatives remainder of year | NGL derivatives
Derivative [Line Items]
Hedged Volume (Bbl)	395,600
Total Commodity Derivatives remainder of year | Floor | Oil derivatives
Derivative [Line Items]
Hedged Volume (Bbl)	2,398,175
Weighted-average price (in dollars per Bbl/MMbtu) | $ / bbl	47.42
Total Commodity Derivatives remainder of year | Floor | Natural gas derivatives
Derivative [Line Items]
Hedged Volume (MMbtu) | MMBTU	5,983,400
Weighted-average price (in dollars per Bbl/MMbtu) | $ / MMBTU	2.50
Total Commodity Derivatives remainder of year | Ceiling | Oil derivatives
Derivative [Line Items]
Hedged Volume (Bbl)	1,030,400
Weighted-average price (in dollars per Bbl/MMbtu) | $ / bbl	60.00
Total Commodity Derivatives remainder of year | Ceiling | Natural gas derivatives
Derivative [Line Items]
Hedged Volume (MMbtu) | MMBTU	3,928,400
Weighted-average price (in dollars per Bbl/MMbtu) | $ / MMBTU	3.35
Total Commodity Derivatives next year | NGL derivatives
Derivative [Line Items]
Hedged Volume (Bbl)	0
Total Commodity Derivatives next year | Floor | Oil derivatives
Derivative [Line Items]
Hedged Volume (Bbl)	8,687,000
Weighted-average price (in dollars per Bbl/MMbtu) | $ / bbl	47.91
Total Commodity Derivatives next year | Floor | Natural gas derivatives
Derivative [Line Items]
Hedged Volume (MMbtu) | MMBTU	0
Weighted-average price (in dollars per Bbl/MMbtu) | $ / MMBTU	0.00
Total Commodity Derivatives next year | Ceiling | Oil derivatives
Derivative [Line Items]
Hedged Volume (Bbl)	657,000
Weighted-average price (in dollars per Bbl/MMbtu) | $ / bbl	53.45
Total Commodity Derivatives next year | Ceiling | Natural gas derivatives
Derivative [Line Items]
Hedged Volume (MMbtu) | MMBTU	0
Weighted-average price (in dollars per Bbl/MMbtu) | $ / MMBTU	0.00
Total Commodity Derivatives year three | NGL derivatives
Derivative [Line Items]
Hedged Volume (Bbl)	0
Total Commodity Derivatives year three | Floor | Oil derivatives
Derivative [Line Items]
Hedged Volume (Bbl)	2,196,000
Weighted-average price (in dollars per Bbl/MMbtu) | $ / bbl	47.27
Total Commodity Derivatives year three | Floor | Natural gas derivatives
Derivative [Line Items]
Hedged Volume (MMbtu) | MMBTU	0
Weighted-average price (in dollars per Bbl/MMbtu) | $ / MMBTU	0.00
Total Commodity Derivatives year three | Ceiling | Oil derivatives
Derivative [Line Items]
Hedged Volume (Bbl)	1,830,000
Weighted-average price (in dollars per Bbl/MMbtu) | $ / bbl	67.03
Total Commodity Derivatives year three | Ceiling | Natural gas derivatives
Derivative [Line Items]
Hedged Volume (MMbtu) | MMBTU	0
Weighted-average price (in dollars per Bbl/MMbtu) | $ / MMBTU	0.00
Total commodity derivatives year four | NGL derivatives
Derivative [Line Items]
Hedged Volume (Bbl)	0
Total commodity derivatives year four | Floor | Oil derivatives
Derivative [Line Items]
Hedged Volume (Bbl)	912,500
Weighted-average price (in dollars per Bbl/MMbtu) | $ / bbl	45.00
Total commodity derivatives year four | Floor | Natural gas derivatives
Derivative [Line Items]
Hedged Volume (MMbtu) | MMBTU	0
Weighted-average price (in dollars per Bbl/MMbtu) | $ / MMBTU	0.00
Total commodity derivatives year four | Ceiling | Oil derivatives
Derivative [Line Items]
Hedged Volume (Bbl)	912,500
Weighted-average price (in dollars per Bbl/MMbtu) | $ / bbl	71.00
Total commodity derivatives year four | Ceiling | Natural gas derivatives
Derivative [Line Items]
Hedged Volume (MMbtu) | MMBTU	0
Weighted-average price (in dollars per Bbl/MMbtu) | $ / MMBTU	0.00
Basis swap one, remainder of year | Oil derivatives
Derivative [Line Items]
Hedged Volume (Bbl)	920,000
Weighted-average price (in dollars per Bbl/MMbtu) | $ / bbl	(0.56)
Basis swap one, remainder of year | Natural gas derivatives
Derivative [Line Items]
Hedged Volume (MMbtu) | MMBTU	2,300,000
Weighted-average price (in dollars per Bbl/MMbtu) | $ / MMBTU	(0.62)
Basis swap one, next year | Oil derivatives
Derivative [Line Items]
Hedged Volume (Bbl)	552,000
Weighted-average price (in dollars per Bbl/MMbtu) | $ / bbl	(4.37)
Basis swap one, next year | Natural gas derivatives
Derivative [Line Items]
Hedged Volume (MMbtu) | MMBTU	20,075,000
Weighted-average price (in dollars per Bbl/MMbtu) | $ / MMBTU	(1.05)
Basis swap one, year three | Oil derivatives
Derivative [Line Items]
Hedged Volume (Bbl)	0
Weighted-average price (in dollars per Bbl/MMbtu) | $ / bbl	0.00
Basis swap one, year three | Natural gas derivatives
Derivative [Line Items]
Hedged Volume (MMbtu) | MMBTU	25,254,000
Weighted-average price (in dollars per Bbl/MMbtu) | $ / MMBTU	(0.76)
Basis swap one, year four | Oil derivatives
Derivative [Line Items]
Hedged Volume (Bbl)	0
Weighted-average price (in dollars per Bbl/MMbtu) | $ / bbl	0.00
Basis swap one, year four | Natural gas derivatives
Derivative [Line Items]
Hedged Volume (MMbtu) | MMBTU	0
Weighted-average price (in dollars per Bbl/MMbtu) | $ / MMBTU	0.00
Basis swap two, remainder of year | Oil derivatives
Derivative [Line Items]
Hedged Volume (Bbl)	920,000
Weighted-average price (in dollars per Bbl/MMbtu) | $ / bbl	7.30
Basis swap two, next year | Oil derivatives
Derivative [Line Items]
Hedged Volume (Bbl)	1,810,000
Weighted-average price (in dollars per Bbl/MMbtu) | $ / bbl	7.30
Basis swap two, year three | Oil derivatives
Derivative [Line Items]
Hedged Volume (Bbl)	0
Weighted-average price (in dollars per Bbl/MMbtu) | $ / bbl	0.00
Basis swap two, year four | Oil derivatives
Derivative [Line Items]
Hedged Volume (Bbl)	0
Weighted-average price (in dollars per Bbl/MMbtu) | $ / bbl	0.00

XML

Fair value measurements - Fair value hierarchy (Details) - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017
Assets:
Derivative asset, current	$ 3,074	$ 6,892
Derivative asset, noncurrent	0	3,413
Liabilities:
Derivative liability, current	(44,060)	(22,950)
Derivative liability, noncurrent	(20,945)	(384)
Recurring
Liabilities:
Net derivative liability positions	(61,931)	(13,029)
Recurring | Oil derivatives | Commodity derivatives
Assets:
Derivative asset, current	0	3,706
Derivative asset, noncurrent	0	5,526
Liabilities:
Derivative liability, current	(31,302)	(8,756)
Derivative liability, noncurrent	(15,223)	3,698
Recurring | Oil derivatives | Deferred premiums
Assets:
Derivative asset, current	0	(87)
Derivative asset, noncurrent	0	(2,113)
Liabilities:
Derivative liability, current	(17,265)	(18,115)
Derivative liability, noncurrent	(3,728)	(5,016)
Recurring | NGL derivatives | Commodity derivatives
Assets:
Derivative asset, current	0	0
Derivative asset, noncurrent	0	0
Liabilities:
Derivative liability, current	(4,807)	0
Derivative liability, noncurrent	0	0
Recurring | Natural gas derivatives | Commodity derivatives
Assets:
Derivative asset, current	3,693	5,729
Derivative asset, noncurrent	0	0
Liabilities:
Derivative liability, current	9,542	4,817
Derivative liability, noncurrent	(1,994)	934
Recurring | Natural gas derivatives | Deferred premiums
Assets:
Derivative asset, current	(619)	(2,456)
Derivative asset, noncurrent	0	0
Liabilities:
Derivative liability, current	(228)	(896)
Derivative liability, noncurrent	0	0
Recurring | Current Assets | Oil derivatives | Commodity derivatives
Assets:
Amounts offset	(10,390)	(3,721)
Recurring | Current Assets | Oil derivatives | Deferred premiums
Assets:
Amounts offset	0	(87)
Recurring | Current Assets | NGL derivatives | Commodity derivatives
Assets:
Amounts offset	0	0
Recurring | Current Assets | Natural gas derivatives | Commodity derivatives
Assets:
Amounts offset	(9,309)	(4,817)
Recurring | Current Assets | Natural gas derivatives | Deferred premiums
Assets:
Amounts offset	(619)	(2,456)
Recurring | Noncurrent Assets | Oil derivatives | Commodity derivatives
Assets:
Amounts offset	(2,056)	(6,087)
Recurring | Noncurrent Assets | Oil derivatives | Deferred premiums
Assets:
Amounts offset	0	(2,113)
Recurring | Noncurrent Assets | NGL derivatives | Commodity derivatives
Assets:
Amounts offset	0	0
Recurring | Noncurrent Assets | Natural gas derivatives | Commodity derivatives
Assets:
Amounts offset	(474)	(934)
Recurring | Noncurrent Assets | Natural gas derivatives | Deferred premiums
Assets:
Amounts offset	0	0
Recurring | Other current liabilities | Oil derivatives | Commodity derivatives
Liabilities:
Amounts offset	10,390	3,721
Recurring | Other current liabilities | Oil derivatives | Deferred premiums
Liabilities:
Amounts offset	0	87
Recurring | Other current liabilities | NGL derivatives | Commodity derivatives
Liabilities:
Amounts offset	0	0
Recurring | Other current liabilities | Natural gas derivatives | Commodity derivatives
Liabilities:
Amounts offset	9,309	4,817
Recurring | Other current liabilities | Natural gas derivatives | Deferred premiums
Liabilities:
Amounts offset	619	2,456
Recurring | Noncurrent Liabilities | Oil derivatives | Commodity derivatives
Liabilities:
Amounts offset	2,056	6,087
Recurring | Noncurrent Liabilities | Oil derivatives | Deferred premiums
Liabilities:
Amounts offset	0	2,113
Recurring | Noncurrent Liabilities | NGL derivatives | Commodity derivatives
Liabilities:
Amounts offset	0	0
Recurring | Noncurrent Liabilities | Natural gas derivatives | Commodity derivatives
Liabilities:
Amounts offset	474	934
Recurring | Noncurrent Liabilities | Natural gas derivatives | Deferred premiums
Liabilities:
Amounts offset	0	0
Recurring | Fair value
Liabilities:
Net derivative liability positions	(61,931)	(13,029)
Recurring | Fair value | Current Assets | Oil derivatives | Commodity derivatives
Assets:
Derivative assets before netting	10,390	7,427
Recurring | Fair value | Current Assets | Oil derivatives | Deferred premiums
Assets:
Derivative assets before netting	0	0
Recurring | Fair value | Current Assets | NGL derivatives | Commodity derivatives
Assets:
Derivative assets before netting	0	0
Recurring | Fair value | Current Assets | Natural gas derivatives | Commodity derivatives
Assets:
Derivative assets before netting	13,002	10,546
Recurring | Fair value | Current Assets | Natural gas derivatives | Deferred premiums
Assets:
Derivative assets before netting	0	0
Recurring | Fair value | Noncurrent Assets | Oil derivatives | Commodity derivatives
Assets:
Derivative assets before netting	2,056	11,613
Recurring | Fair value | Noncurrent Assets | Oil derivatives | Deferred premiums
Assets:
Derivative assets before netting	0	0
Recurring | Fair value | Noncurrent Assets | NGL derivatives | Commodity derivatives
Assets:
Derivative assets before netting	0	0
Recurring | Fair value | Noncurrent Assets | Natural gas derivatives | Commodity derivatives
Assets:
Derivative assets before netting	474	934
Recurring | Fair value | Noncurrent Assets | Natural gas derivatives | Deferred premiums
Assets:
Derivative assets before netting	0	0
Recurring | Fair value | Other current liabilities | Oil derivatives | Commodity derivatives
Liabilities:
Derivative liabilities before netting	(41,692)	(12,477)
Recurring | Fair value | Other current liabilities | Oil derivatives | Deferred premiums
Liabilities:
Derivative liabilities before netting	(17,265)	(18,202)
Recurring | Fair value | Other current liabilities | NGL derivatives | Commodity derivatives
Liabilities:
Derivative liabilities before netting	(4,807)	0
Recurring | Fair value | Other current liabilities | Natural gas derivatives | Commodity derivatives
Liabilities:
Derivative liabilities before netting	233	0
Recurring | Fair value | Other current liabilities | Natural gas derivatives | Deferred premiums
Liabilities:
Derivative liabilities before netting	(847)	(3,352)
Recurring | Fair value | Noncurrent Liabilities | Oil derivatives | Commodity derivatives
Liabilities:
Derivative liabilities before netting	(17,279)	(2,389)
Recurring | Fair value | Noncurrent Liabilities | Oil derivatives | Deferred premiums
Liabilities:
Derivative liabilities before netting	(3,728)	(7,129)
Recurring | Fair value | Noncurrent Liabilities | NGL derivatives | Commodity derivatives
Liabilities:
Derivative liabilities before netting	0	0
Recurring | Fair value | Noncurrent Liabilities | Natural gas derivatives | Commodity derivatives
Liabilities:
Derivative liabilities before netting	(2,468)	0
Recurring | Fair value | Noncurrent Liabilities | Natural gas derivatives | Deferred premiums
Liabilities:
Derivative liabilities before netting	0	0
Recurring | Level 1
Liabilities:
Net derivative liability positions	0	0
Recurring | Level 1 | Current Assets | Oil derivatives | Commodity derivatives
Assets:
Derivative assets before netting	0	0
Recurring | Level 1 | Current Assets | Oil derivatives | Deferred premiums
Assets:
Derivative assets before netting	0	0
Recurring | Level 1 | Current Assets | NGL derivatives | Commodity derivatives
Assets:
Derivative assets before netting	0	0
Recurring | Level 1 | Current Assets | Natural gas derivatives | Commodity derivatives
Assets:
Derivative assets before netting	0	0
Recurring | Level 1 | Current Assets | Natural gas derivatives | Deferred premiums
Assets:
Derivative assets before netting	0	0
Recurring | Level 1 | Noncurrent Assets | Oil derivatives | Commodity derivatives
Assets:
Derivative assets before netting	0	0
Recurring | Level 1 | Noncurrent Assets | Oil derivatives | Deferred premiums
Assets:
Derivative assets before netting	0	0
Recurring | Level 1 | Noncurrent Assets | NGL derivatives | Commodity derivatives
Assets:
Derivative assets before netting	0	0
Recurring | Level 1 | Noncurrent Assets | Natural gas derivatives | Commodity derivatives
Assets:
Derivative assets before netting	0	0
Recurring | Level 1 | Noncurrent Assets | Natural gas derivatives | Deferred premiums
Assets:
Derivative assets before netting	0	0
Recurring | Level 1 | Other current liabilities | Oil derivatives | Commodity derivatives
Liabilities:
Derivative liabilities before netting	0	0
Recurring | Level 1 | Other current liabilities | Oil derivatives | Deferred premiums
Liabilities:
Derivative liabilities before netting	0	0
Recurring | Level 1 | Other current liabilities | NGL derivatives | Commodity derivatives
Liabilities:
Derivative liabilities before netting	0	0
Recurring | Level 1 | Other current liabilities | Natural gas derivatives | Commodity derivatives
Liabilities:
Derivative liabilities before netting	0	0
Recurring | Level 1 | Other current liabilities | Natural gas derivatives | Deferred premiums
Liabilities:
Derivative liabilities before netting	0	0
Recurring | Level 1 | Noncurrent Liabilities | Oil derivatives | Commodity derivatives
Liabilities:
Derivative liabilities before netting	0	0
Recurring | Level 1 | Noncurrent Liabilities | Oil derivatives | Deferred premiums
Liabilities:
Derivative liabilities before netting	0	0
Recurring | Level 1 | Noncurrent Liabilities | NGL derivatives | Commodity derivatives
Liabilities:
Derivative liabilities before netting	0	0
Recurring | Level 1 | Noncurrent Liabilities | Natural gas derivatives | Commodity derivatives
Liabilities:
Derivative liabilities before netting	0	0
Recurring | Level 1 | Noncurrent Liabilities | Natural gas derivatives | Deferred premiums
Liabilities:
Derivative liabilities before netting	0	0
Recurring | Level 2
Liabilities:
Net derivative liability positions	(40,091)	15,654
Recurring | Level 2 | Current Assets | Oil derivatives | Commodity derivatives
Assets:
Derivative assets before netting	10,390	7,427
Recurring | Level 2 | Current Assets | Oil derivatives | Deferred premiums
Assets:
Derivative assets before netting	0	0
Recurring | Level 2 | Current Assets | NGL derivatives | Commodity derivatives
Assets:
Derivative assets before netting	0	0
Recurring | Level 2 | Current Assets | Natural gas derivatives | Commodity derivatives
Assets:
Derivative assets before netting	13,002	10,546
Recurring | Level 2 | Current Assets | Natural gas derivatives | Deferred premiums
Assets:
Derivative assets before netting	0	0
Recurring | Level 2 | Noncurrent Assets | Oil derivatives | Commodity derivatives
Assets:
Derivative assets before netting	2,056	11,613
Recurring | Level 2 | Noncurrent Assets | Oil derivatives | Deferred premiums
Assets:
Derivative assets before netting	0	0
Recurring | Level 2 | Noncurrent Assets | NGL derivatives | Commodity derivatives
Assets:
Derivative assets before netting	0	0
Recurring | Level 2 | Noncurrent Assets | Natural gas derivatives | Commodity derivatives
Assets:
Derivative assets before netting	474	934
Recurring | Level 2 | Noncurrent Assets | Natural gas derivatives | Deferred premiums
Assets:
Derivative assets before netting	0	0
Recurring | Level 2 | Other current liabilities | Oil derivatives | Commodity derivatives
Liabilities:
Derivative liabilities before netting	(41,692)	(12,477)
Recurring | Level 2 | Other current liabilities | Oil derivatives | Deferred premiums
Liabilities:
Derivative liabilities before netting	0	0
Recurring | Level 2 | Other current liabilities | NGL derivatives | Commodity derivatives
Liabilities:
Derivative liabilities before netting	(4,807)	0
Recurring | Level 2 | Other current liabilities | Natural gas derivatives | Commodity derivatives
Liabilities:
Derivative liabilities before netting	233	0
Recurring | Level 2 | Other current liabilities | Natural gas derivatives | Deferred premiums
Liabilities:
Derivative liabilities before netting	0	0
Recurring | Level 2 | Noncurrent Liabilities | Oil derivatives | Commodity derivatives
Liabilities:
Derivative liabilities before netting	(17,279)	(2,389)
Recurring | Level 2 | Noncurrent Liabilities | Oil derivatives | Deferred premiums
Liabilities:
Derivative liabilities before netting	0	0
Recurring | Level 2 | Noncurrent Liabilities | NGL derivatives | Commodity derivatives
Liabilities:
Derivative liabilities before netting	0	0
Recurring | Level 2 | Noncurrent Liabilities | Natural gas derivatives | Commodity derivatives
Liabilities:
Derivative liabilities before netting	(2,468)	0
Recurring | Level 2 | Noncurrent Liabilities | Natural gas derivatives | Deferred premiums
Liabilities:
Derivative liabilities before netting	0	0
Recurring | Level 3
Liabilities:
Net derivative liability positions	(21,840)	(28,683)
Recurring | Level 3 | Current Assets | Oil derivatives | Commodity derivatives
Assets:
Derivative assets before netting	0	0
Recurring | Level 3 | Current Assets | Oil derivatives | Deferred premiums
Assets:
Derivative assets before netting	0	0
Recurring | Level 3 | Current Assets | NGL derivatives | Commodity derivatives
Assets:
Derivative assets before netting	0	0
Recurring | Level 3 | Current Assets | Natural gas derivatives | Commodity derivatives
Assets:
Derivative assets before netting	0	0
Recurring | Level 3 | Current Assets | Natural gas derivatives | Deferred premiums
Assets:
Derivative assets before netting	0	0
Recurring | Level 3 | Noncurrent Assets | Oil derivatives | Commodity derivatives
Assets:
Derivative assets before netting	0	0
Recurring | Level 3 | Noncurrent Assets | Oil derivatives | Deferred premiums
Assets:
Derivative assets before netting	0	0
Recurring | Level 3 | Noncurrent Assets | NGL derivatives | Commodity derivatives
Assets:
Derivative assets before netting	0	0
Recurring | Level 3 | Noncurrent Assets | Natural gas derivatives | Commodity derivatives
Assets:
Derivative assets before netting	0	0
Recurring | Level 3 | Noncurrent Assets | Natural gas derivatives | Deferred premiums
Assets:
Derivative assets before netting	0	0
Recurring | Level 3 | Other current liabilities | Oil derivatives | Commodity derivatives
Liabilities:
Derivative liabilities before netting	0	0
Recurring | Level 3 | Other current liabilities | Oil derivatives | Deferred premiums
Liabilities:
Derivative liabilities before netting	(17,265)	(18,202)
Recurring | Level 3 | Other current liabilities | NGL derivatives | Commodity derivatives
Liabilities:
Derivative liabilities before netting	0	0
Recurring | Level 3 | Other current liabilities | Natural gas derivatives | Commodity derivatives
Liabilities:
Derivative liabilities before netting	0	0
Recurring | Level 3 | Other current liabilities | Natural gas derivatives | Deferred premiums
Liabilities:
Derivative liabilities before netting	(847)	(3,352)
Recurring | Level 3 | Noncurrent Liabilities | Oil derivatives | Commodity derivatives
Liabilities:
Derivative liabilities before netting	0	0
Recurring | Level 3 | Noncurrent Liabilities | Oil derivatives | Deferred premiums
Liabilities:
Derivative liabilities before netting	(3,728)	(7,129)
Recurring | Level 3 | Noncurrent Liabilities | NGL derivatives | Commodity derivatives
Liabilities:
Derivative liabilities before netting	0	0
Recurring | Level 3 | Noncurrent Liabilities | Natural gas derivatives | Commodity derivatives
Liabilities:
Derivative liabilities before netting	0	0
Recurring | Level 3 | Noncurrent Liabilities | Natural gas derivatives | Deferred premiums
Liabilities:
Derivative liabilities before netting	$ 0	$ 0

XML

Fair value measurements - Narrative (Details) - Measurement input, discount rate - Recurring - Level 3 - Deferred premiums	Sep. 30, 2018
Minimum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt instrument, measurement input	0.0191
Maximum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt instrument, measurement input	0.0332
Weighted Average
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt instrument, measurement input	0.0278

XML

Fair value measurements - Cash payments required for deferred premium contracts (Details) $ in Thousands	Sep. 30, 2018 USD ($)
Fair Value Disclosures [Abstract]
Remaining 2018	$ 5,405
2019	15,502
2020	1,295
Total	$ 22,202

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Fair value measurements - Summary of changes in net assets classified as Level 3 (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Changes in assets classified as Level 3 measurements
Change in net present value of derivative deferred premiums			$ 564	$ 199
Deferred premiums
Changes in assets classified as Level 3 measurements
Balance of Level 3 at beginning of period	$ (25,026)	$ (12,554)	(28,683)	(8,998)
Change in net present value of derivative deferred premiums	(168)	(88)	(564)	(199)
Total purchases and settlements of derivative deferred premiums:
Purchases	(2,101)	(15,996)	(7,523)	(22,994)
Settlements	5,455	1,448	14,930	5,001
Balance of Level 3 at end of period	$ (21,840)	$ (27,190)	$ (21,840)	$ (27,190)

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Fair value measurements - Carrying amount of debt instruments (Details) - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017
Long-term debt
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt	$ 970,000	$ 800,000
Long-term debt | January 2022 Notes | Senior Notes
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt	450,000	450,000
Long-term debt | March 2023 Notes | Senior Notes
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt	350,000	350,000
Long-term debt | Senior Secured Credit Facility | Secured debt
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt	170,000	0
Fair value
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt	971,689	818,605
Fair value | January 2022 Notes | Senior Notes
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt	448,875	454,500
Fair value | March 2023 Notes | Senior Notes
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt	352,730	364,105
Fair value | Senior Secured Credit Facility | Secured debt
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt	$ 170,084	$ 0

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Net income per common share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Net income (numerator):
Net income—basic and diluted	$ 55,050	$ 11,027	$ 175,022	$ 140,413
Weighted-average common shares outstanding (denominator):
Basic (in shares)	230,605	239,306	233,228	239,017
Diluted (in shares)	231,639	244,887	234,207	244,693
Net income per common share:
Basic (in dollars per share)	$ 0.24	$ 0.05	$ 0.75	$ 0.59
Diluted (in dollars per share)	$ 0.24	$ 0.05	$ 0.75	$ 0.57
Non-vested restricted stock awards
Weighted-average common shares outstanding (denominator):
Incremental common shares (in shares)	935	650	911	845
Outstanding stock option awards
Weighted-average common shares outstanding (denominator):
Incremental common shares (in shares)	99	130	68	129
Non-vested performance share awards
Weighted-average common shares outstanding (denominator):
Incremental common shares (in shares)	0	4,801	0	4,702

XML

Commitments and contingencies - Litigation (Details) $ in Millions	Sep. 30, 2018 USD ($) bbl	Jun. 15, 2018 USD ($)	Dec. 11, 2017 Claim
Commitments and Contingencies Disclosure [Abstract]
Barrels of crude oil produced | bbl	19,000
Number of causes of action | Claim			9
Gain contingency, unrecorded amount		$ 150.0
Estimated litigation liability	$ 37.4

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Commitments and contingencies - Drilling contracts (Details) - Drilling contracts - USD ($)	9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017
Cost of Goods and Services Sold [Abstract]
Penalties incurred for early contract termination	$ 0	$ 0
Future drilling contracts commitments	$ 22,900,000

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Commitments and contingencies - Firm sale and transportation commitments (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Supply Commitment [Line Items]
Minimum volume commitments deficiency payments	$ 0.2	$ 0.5	$ 2.5	$ 1.1
Firm sale and transportation commitments
Cost of Goods and Services Sold [Abstract]
Future drilling contracts commitments	$ 367.7		$ 367.7

XML

Commitments and contingencies - Purchase commitment (Details) - USD ($) $ in Millions	3 Months Ended
	Jun. 30, 2018	Sep. 30, 2018
Commitments and Contingencies Disclosure [Abstract]
Purchase agreement term	1 year
Aggregate purchase commitment		$ 5.7

XML

Commitments and contingencies - Environmental (Details) - USD ($)	Sep. 30, 2018	Dec. 31, 2017
Commitments and Contingencies Disclosure [Abstract]
Accrual for environmental loss contingencies	$ 0	$ 0

XML

Supplemental cash flow information (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Non-cash investing activities:
(Decrease) increase in accrued capital expenditures			$ (44,533)	$ 39,156
Capitalized stock-based compensation	$ 1,927	$ 1,870	6,025	5,642
Capitalized asset retirement costs			719	670
Other supplemental cash flow information:
Capitalized interest			$ 710	$ 756

XML

Asset retirement obligations (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017
Asset Retirement Obligation, Roll Forward Analysis [Roll Forward]
Liability at beginning of period	$ 55,506	$ 52,207
Liabilities added due to acquisitions, drilling, midstream service asset construction and other	719	492
Accretion expense	3,341	2,822
Liabilities settled due to plugging and abandonment or sale	(2,246)	(1,228)
Revision of estimates	0	178
Liability at end of period	$ 57,320	$ 54,471

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Income taxes - Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Operating loss carry-forward
Net operating loss carry-forward that will not expire due to TCJA	$ 86,400		$ 86,400
Deferred tax assets, valuation allowance	298,800		298,800
Current income tax benefit	381	$ 0	381	$ 0
Internal Revenue Service (IRS) | Federal
Operating loss carry-forward
Operating loss carryforwards	1,800,000		1,800,000
State of Oklahoma | State
Operating loss carry-forward
Operating loss carryforwards	36,300		36,300
Texas | State
Operating loss carry-forward
Deferred tax liability	1,800		1,800
Current income tax benefit	(400)
Expected tax refund	$ 400		$ 400

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Subsidiary guarantors - Condensed consolidating balance sheet (Details) - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017
Subsidiary guarantees
Accounts receivable, net	$ 117,581	$ 100,645
Other current assets	71,946	134,737
Oil and natural gas properties, net	1,938,490	1,589,339
Midstream service assets, net	132,415	138,325
Other fixed assets, net	42,264	40,721
Investment in subsidiaries	0	0
Other noncurrent assets, net	17,078	19,522
Total assets	2,319,774	2,023,289
Accounts payable and accrued liabilities	86,637	58,341
Other current liabilities	172,632	219,078
Long-term debt, net	963,191	791,855
Other noncurrent liabilities	82,202	188,436
Stockholders' equity	1,015,112	765,579
Total liabilities and stockholders' equity	2,319,774	2,023,289
Intercompany eliminations
Subsidiary guarantees
Accounts receivable, net	0	0
Other current assets	0	0
Oil and natural gas properties, net	(22,174)	(16,715)
Midstream service assets, net	0	0
Other fixed assets, net	0	0
Investment in subsidiaries	(130,439)	7,566
Other noncurrent assets, net	0	0
Total assets	(152,613)	(9,149)
Accounts payable and accrued liabilities	0	0
Other current liabilities	0	0
Long-term debt, net	0	0
Other noncurrent liabilities	0	0
Stockholders' equity	(152,613)	(9,149)
Total liabilities and stockholders' equity	(152,613)	(9,149)
Laredo | Reportable Legal Entities
Subsidiary guarantees
Accounts receivable, net	103,109	79,413
Other current assets	70,413	132,219
Oil and natural gas properties, net	1,951,518	1,596,834
Midstream service assets, net	0	0
Other fixed assets, net	42,071	40,344
Investment in subsidiaries	130,439	(7,566)
Other noncurrent assets, net	13,113	15,526
Total assets	2,310,663	1,856,770
Accounts payable and accrued liabilities	68,037	34,550
Other current liabilities	162,893	193,104
Long-term debt, net	963,191	791,855
Other noncurrent liabilities	79,256	54,967
Stockholders' equity	1,037,286	782,294
Total liabilities and stockholders' equity	2,310,663	1,856,770
Subsidiary Guarantors | Reportable Legal Entities
Subsidiary guarantees
Accounts receivable, net	14,472	21,232
Other current assets	1,533	2,518
Oil and natural gas properties, net	9,146	9,220
Midstream service assets, net	132,415	138,325
Other fixed assets, net	193	377
Investment in subsidiaries	0	0
Other noncurrent assets, net	3,965	3,996
Total assets	161,724	175,668
Accounts payable and accrued liabilities	18,600	23,791
Other current liabilities	9,739	25,974
Long-term debt, net	0	0
Other noncurrent liabilities	2,946	133,469
Stockholders' equity	130,439	(7,566)
Total liabilities and stockholders' equity	$ 161,724	$ 175,668

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Subsidiary guarantors - Condensed consolidating statement of operations (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Subsidiary guarantees
Total revenues	$ 279,746	$ 205,818	$ 890,488	$ 581,825
Total costs and expenses	175,336	145,366	598,119	417,986
Operating income	104,410	60,452	292,369	163,839
Interest expense	(14,845)	(23,697)	(42,787)	(69,590)
Other (expense) income	(33,128)	(25,728)	(73,173)	46,164
Income before income taxes	56,437	11,027	176,409	140,413
Income tax expense	(1,387)	0	(1,387)	0
Net income	55,050	11,027	175,022	140,413
Intercompany eliminations
Subsidiary guarantees
Total revenues	(19,687)	(15,770)	(54,715)	(48,370)
Total costs and expenses	(17,752)	(14,565)	(49,256)	(42,179)
Operating income	(1,935)	(1,205)	(5,459)	(6,191)
Interest expense	0	0	0	0
Other (expense) income	(4,291)	(3,731)	(9,334)	(15,238)
Income before income taxes	(6,226)	(4,936)	(14,793)	(21,429)
Income tax expense	0	0	0	0
Net income	(6,226)	(4,936)	(14,793)	(21,429)
Laredo | Reportable Legal Entities
Subsidiary guarantees
Total revenues	225,970	157,902	632,419	439,269
Total costs and expenses	123,942	97,686	345,232	276,855
Operating income	102,028	60,216	287,187	162,414
Interest expense	(14,845)	(23,697)	(42,787)	(69,590)
Other (expense) income	(28,811)	(24,287)	(62,532)	53,780
Income before income taxes	58,372	12,232	181,868	146,604
Income tax expense	(1,387)	0	(1,387)	0
Net income	56,985	12,232	180,481	146,604
Subsidiary Guarantors | Reportable Legal Entities
Subsidiary guarantees
Total revenues	73,463	63,686	312,784	190,926
Total costs and expenses	69,146	62,245	302,143	183,310
Operating income	4,317	1,441	10,641	7,616
Interest expense	0	0	0	0
Other (expense) income	(26)	2,290	(1,307)	7,622
Income before income taxes	4,291	3,731	9,334	15,238
Income tax expense	0	0	0	0
Net income	$ 4,291	$ 3,731	$ 9,334	$ 15,238

XML

Subsidiary guarantors - Condensed consolidating statement of cash flows (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017
Subsidiary guarantees
Net cash provided by operating activities	$ 408,528	$ 272,051
Change in investment between affiliates	0	0
Capital expenditures and other	(536,431)	(356,893)
Net cash provided by financing activities	66,151	72,988
Net decrease in cash and cash equivalents	(61,752)	(11,854)
Cash and cash equivalents, beginning of period	112,159	32,672
Cash and cash equivalents, end of period	50,407	20,818
Intercompany eliminations
Subsidiary guarantees
Net cash provided by operating activities	(9,334)	(15,238)
Change in investment between affiliates	9,334	15,238
Capital expenditures and other	0	0
Net cash provided by financing activities	0	0
Net decrease in cash and cash equivalents	0	0
Cash and cash equivalents, beginning of period	0	0
Cash and cash equivalents, end of period	0	0
Laredo | Reportable Legal Entities
Subsidiary guarantees
Net cash provided by operating activities	402,065	273,309
Change in investment between affiliates	3,115	(36,890)
Capital expenditures and other	(533,083)	(321,261)
Net cash provided by financing activities	66,151	72,988
Net decrease in cash and cash equivalents	(61,752)	(11,854)
Cash and cash equivalents, beginning of period	112,158	32,671
Cash and cash equivalents, end of period	50,406	20,817
Subsidiary Guarantors | Reportable Legal Entities
Subsidiary guarantees
Net cash provided by operating activities	15,797	13,980
Change in investment between affiliates	(12,449)	21,652
Capital expenditures and other	(3,348)	(35,632)
Net cash provided by financing activities	0	0
Net decrease in cash and cash equivalents	0	0
Cash and cash equivalents, beginning of period	1	1
Cash and cash equivalents, end of period	$ 1	$ 1

XML

Subsequent events - Additional Information (Details) - USD ($)		9 Months Ended
	Oct. 15, 2018	Sep. 30, 2018	Sep. 30, 2017	Nov. 05, 2018	Oct. 23, 2018	Dec. 31, 2017
Subsequent Event [Line Items]
Borrowings on Senior Secured Credit Facility		$ 190,000,000	$ 155,000,000
Senior Secured Credit Facility | Secured debt
Subsequent Event [Line Items]
Amount outstanding		170,000,000
Current borrowing capacity		1,300,000,000
Aggregate elected commitment		1,200,000,000.0
Senior Secured Credit Facility | Secured debt | Subsequent Event
Subsequent Event [Line Items]
Borrowings on Senior Secured Credit Facility	$ 20,000,000
Amount outstanding				$ 190,000,000
Current borrowing capacity					$ 1,300,000,000
Aggregate elected commitment					$ 1,200,000,000
Letter of Credit | Secured debt
Subsequent Event [Line Items]
Letters of credit outstanding		$ 0				$ 0
Letter of Credit | Secured debt | Subsequent Event
Subsequent Event [Line Items]
Letters of credit outstanding				$ 14,700,000