10-Q

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON D.C. 20549

FORM 10-Q

[X] QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d)

OF THE SECURITIES EXCHANGE ACT OF 1934

FOR THE QUARTERLY PERIOD ENDEDJUNE 30, 2018

[  ] TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d)

OF THE SECURITIES EXCHANGE ACT OF 1934

FOR THE TRANSITION PERIODFROM TO.

COMMISSION FILE NUMBER 1-13455

TETRA Technologies, Inc.

(Exact name of registrant as specified in its charter)

Delaware	74-2148293
(State of incorporation)	(I.R.S. Employer Identification No.)
24955 Interstate 45 North
The Woodlands, Texas	77380
(Address of principal executive offices)	(zip code)

(281) 367-1983

(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 [ X ]  No [   ]

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

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, 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 [ ]	Accelerated filer [ X ]
Non-accelerated filer [   ] (Do not check if a smaller reporting company)	Smaller reporting company [   ]
Emerging growth company [ ]

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. [ ]

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

As ofAugust 9, 2018, there were125,679,432 shares outstanding of the Company’s Common Stock, $0.01 par value per share.

PART I

FINANCIAL INFORMATION

Item 1. Financial Statements.

TETRA Technologies, Inc. and Subsidiaries

Consolidated Statements of Operations

(In Thousands, Except Per Share Amounts)

(Unaudited)

	Three Months Ended   June 30,						Six Months Ended   June 30,
	2018			2017			2018			2017
Revenues:
Product sales	$	107,687		$	86,180		$	183,066		$	154,158
Services	152,385			93,751			276,387			185,182
Total revenues	260,072			179,931			459,453			339,340
Cost of revenues:
Cost of product sales	86,115			61,767			146,329			111,349
Cost of services	97,177			62,845			181,920			126,494
Depreciation, amortization, and accretion	28,979			25,784			55,420			52,308
Total cost of revenues	212,271			150,396			383,669			290,151
Gross profit	47,801			29,535			75,784			49,189
General and administrative expense	33,617			29,460			64,420			56,211
Interest expense, net	18,379			14,328			33,352			28,095
Warrants fair value adjustment (income) expense	2,195			(5,545		)	201			(11,521		)
CCLP Series A Preferred Units fair value adjustment (income) expense	(512		)	(4,834		)	846			(3,203		)
Litigation arbitration award income	—			—			—			(12,816		)
Other expense, net	3,808			775			6,584			1,236
Loss before taxes and discontinued operations	(9,686		)	(4,649		)	(29,619		)	(8,813		)
Provision for income taxes	2,446			3,317			3,570			3,398
Loss before discontinued operations	(12,132		)	(7,966		)	(33,189		)	(12,211		)
Discontinued operations:
Loss from discontinued operations (including 2018 loss on disposal of $33.8 million), net of taxes	(21		)	(6,653		)	(41,727		)	(13,660		)
Net loss	(12,153		)	(14,619		)	(74,916		)	(25,871		)
Loss attributable to noncontrolling interest	6,188			3,628			15,303			12,417
Loss attributable to TETRA stockholders	$	(5,965	)	$	(10,991	)	$	(59,613	)	$	(13,454	)
Basic net income (loss) per common share:
Income (loss) before discontinued operations attributable to TETRA stockholders	$	(0.05	)	$	(0.04	)	$	(0.14	)	$	0.00
Loss from discontinued operations attributable to TETRA stockholders	$	0.00		$	(0.06	)	$	(0.33	)	$	(0.12	)
Net loss attributable to TETRA stockholders	$	(0.05	)	$	(0.10	)	$	(0.47	)	$	(0.12	)
Average shares outstanding	122,474			114,534			125,553			114,375
Diluted net income (loss) per common share:
Income (loss) before discontinued operations attributable to TETRA stockholders	$	(0.05	)	$	(0.04	)	$	(0.14	)	$	0.00
Loss from discontinued operations attributable to TETRA stockholders	$	0.00		$	(0.06	)	$	(0.33	)	$	(0.12	)
Net loss attributable to TETRA stockholders	$	(0.05	)	$	(0.10	)	$	(0.47	)	$	(0.12	)
Average diluted shares outstanding	122,474			114,534			125,553			114,375

See Notes to Consolidated Financial Statements

1

TETRA Technologies, Inc. and Subsidiaries

Consolidated Statements of Comprehensive Income (Loss)

(In Thousands)

(Unaudited)

	Three Months Ended   June 30,						Six Months Ended   June 30,
	2018			2017			2018			2017
Net loss	$	(12,153	)	$	(14,619	)	$	(74,916	)	$	(25,871	)
Foreign currency translation adjustment	(9,249		)	2,968			(7,966		)	5,161
Comprehensive loss	(21,402		)	(11,651		)	(82,882		)	(20,710		)
Comprehensive loss attributable to noncontrolling interest	7,942			3,303			17,442			12,233
Comprehensive loss attributable to TETRA stockholders	$	(13,460	)	$	(8,348	)	$	(65,440	)	$	(8,477	)

See Notes to Consolidated Financial Statements

2

TETRA Technologies, Inc. and Subsidiaries

Consolidated Balance Sheets

(In Thousands)

	June 30, 2018			December 31, 2017
	(Unaudited)
ASSETS
Current assets:
Cash and cash equivalents	$	70,157		$	26,128
Restricted cash	4,273			261
Trade accounts receivable, net of allowances of $1,380 in 2018 and $1,286 in 2017	181,454			144,051
Inventories	133,367			115,438
Assets of discontinued operations	1,538			121,134
Prepaid expenses and other current assets	19,457			17,597
Total current assets	410,246			424,609
Property, plant, and equipment:
Land and building	79,000			78,559
Machinery and equipment	1,207,766			1,167,680
Automobiles and trucks	36,502			34,744
Chemical plants	188,135			186,790
Construction in progress	44,590			31,566
Total property, plant, and equipment	1,555,993			1,499,339
Less accumulated depreciation	(722,915		)	(689,907		)
Net property, plant, and equipment	833,078			809,432
Other assets:
Goodwill	22,197			6,636
Patents, trademarks and other intangible assets, net of accumulated amortization of $74,149 in 2018 and $71,114 in 2017	85,878			47,405
Deferred tax assets, net	10			10
Notes receivable	7,501			44
Other assets	20,709			20,478
Total other assets	136,295			74,573
Total assets	$	1,379,619		$	1,308,614

See Notes to Consolidated Financial Statements

3

TETRA Technologies, Inc. and Subsidiaries

Consolidated Balance Sheets

(In Thousands, Except Share Amounts)

	June 30, 2018			December 31, 2017
	(Unaudited)
LIABILITIES AND EQUITY
Current liabilities:
Trade accounts payable	$	55,292		$	70,847
Unearned income	30,718			18,701
Accrued liabilities	72,829			58,478
Liabilities of discontinued operations	8,343			73,913
Total current liabilities	167,182			221,939
Long-term debt, net	810,739			629,855
Deferred income taxes	3,889			4,404
Asset retirement obligations, net of current portion	12,073			11,738
CCLP Series A Preferred Units	45,644			61,436
Warrants liability	13,403			13,202
Other liabilities	15,627			13,479
Total long-term liabilities	901,375			734,114
Commitments and contingencies
Equity:
TETRA stockholders' equity:
Common stock, par value $0.01 per share; 250,000,000 shares authorized at June 30, 2018 and December 31, 2017; 128,349,334 shares issued at June 30, 2018 and 118,515,797 shares issued at December 31, 2017	1,283			1,185
Additional paid-in capital	457,082			425,648
Treasury stock, at cost; 2,015,775 shares held at June 30, 2018, and 2,638,093 shares held at December 31, 2017	(18,865		)	(18,651		)
Accumulated other comprehensive income (loss)	(49,594		)	(43,767		)
Retained earnings (deficit)	(215,948		)	(156,335		)
Total TETRA stockholders' equity	173,958			208,080
Noncontrolling interests	137,104			144,481
Total equity	311,062			352,561
Total liabilities and equity	$	1,379,619		$	1,308,614

See Notes to Consolidated Financial Statements

4

TETRA Technologies, Inc. and Subsidiaries

Consolidated Statements of Cash Flows

(In Thousands)

(Unaudited)

	Six Months Ended June 30,
	2018			2017
Operating activities:
Net loss	$	(74,916	)	$	(25,871	)
Reconciliation of net loss to cash used in operating activities:
Depreciation, amortization, and accretion	57,505			58,098
Provision (benefit) for deferred income taxes	(280		)	(316		)
Equity-based compensation expense	3,422			5,444
Provision for doubtful accounts	665			1,244
Non-cash loss on disposition of business	32,369			—
Amortization of deferred financing costs	2,133			2,266
CCLP Series A Preferred offering costs	—			37
CCLP Series A Preferred accrued paid in kind distributions	2,838			3,797
CCLP Series A Preferred fair value adjustment	846			(3,203		)
Warrants fair value adjustment	201			(11,521		)
Contingent consideration liability fair value adjustment	4,300			—
Expense for unamortized finance costs and other non-cash charges and credits	3,616			(335		)
Gain on sale of assets	(65		)	(533		)
Changes in operating assets and liabilities:
Accounts receivable	(46		)	(30,970		)
Inventories	(18,398		)	(10,690		)
Prepaid expenses and other current assets	(2,434		)	(1,983		)
Trade accounts payable and accrued expenses	(23,246		)	14,605
Decommissioning liabilities	—			(497		)
Other	(637		)	(133		)
Net cash used in operating activities	(12,127		)	(561		)
Investing activities:
Purchases of property, plant, and equipment, net	(67,441		)	(16,643		)
Acquisition of businesses, net of cash acquired	(42,002		)	—
Proceeds from disposal of business	3,121			—
Proceeds on sale of property, plant, and equipment	307			380
Other investing activities	(332		)	235
Net cash used in investing activities	(106,347		)	(16,028		)
Financing activities:
Proceeds from long-term debt	508,250			178,700
Principal payments on long-term debt	(325,300		)	(156,550		)
CCLP distributions	(8,982		)	(10,944		)
Tax remittances on equity based compensation	(593		)	(407		)
Debt issuance costs	(7,881		)	(1,291		)
Net cash provided by financing activities	165,494			9,508
Effect of exchange rate changes on cash	1,021			530
Increase (decrease) in cash and cash equivalents	48,041			(6,551		)
Cash and cash equivalents and restricted cash at beginning of period	26,389			36,531
Cash and cash equivalents and restricted cash at end of period	$	74,430		$	29,980
Supplemental cash flow information:
Interest paid	$	18,610		$	22,716
Income taxes paid	3,314			4,416

See Notes to Consolidated Financial Statements

5

TETRA Technologies, Inc. and Subsidiaries

Notes to Consolidated Financial Statements

(Unaudited)

NOTE A – BASIS OF PRESENTATION AND SIGNIFICANT ACCOUNTING POLICIES

We are a geographically diversified oil and gas services company, focused on completion fluids and associated products and services, water management, frac flowback, production well testing and offshore rig cooling services, and compression services and equipment. We were incorporated in Delaware in 1981. Following the acquisition and disposition transactions that closed during the three month period ended March 31, 2018, we reorganized our reporting segments and are now composed of three divisions – Completion Fluids & Products, Water & Flowback Services, and Compression. Unless the context requires otherwise, when we refer to “we,” “us,” and “our,” we are describing TETRA Technologies, Inc. and its consolidated subsidiaries on a consolidated basis.

Our consolidated financial statements include the accounts of our wholly owned subsidiaries. All intercompany accounts and transactions have been eliminated in consolidation. The information furnished reflects all normal recurring adjustments, which are, in the opinion of management, necessary to provide a fair statement of the results for the interim periods. Operating results for the period ended June 30, 2018 are not necessarily indicative of results that may be expected for the twelve months ended December 31, 2018.

We consolidate the financial statements of CSI Compressco LP and its subsidiaries ("CCLP") as part of our Compression Division, as we determined that CCLP is a variable interest entity and we are the primary beneficiary. We control the financial interests of CCLP and have the ability to direct the activities of CCLP that most significantly impact its economic performance through our ownership of its general partner. The share of CCLP net assets and earnings that is not owned by us is presented as noncontrolling interest in our consolidated financial statements. Our cash flows from our investment in CCLP are limited to the quarterly distributions we receive on our CCLP common units and general partner interest (including incentive distribution rights) and the amounts collected for services we perform on behalf of CCLP, as TETRA's capital structure and CCLP's capital structure are separate, and do not include cross default provisions, cross collateralization provisions, or cross guarantees.

The accompanying unaudited consolidated financial statements have been prepared in accordance with Rule 10-01 of Regulation S-X for interim financial statements required to be filed with the Securities and Exchange Commission ("SEC") and do not include all information and footnotes required by generally accepted accounting principles for complete financial statements. These financial statements should be read in connection with the financial statements for the year ended December 31, 2017, and notes thereto included in our Annual Report on Form 10-K, whichwe filed with the SEC on March 5, 2018.

Use of Estimates

The preparation of financial statements in conformity with U.S. generally accepted accounting principles ("GAAP") requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclose contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues, expenses, and impairments during the reporting period. Actual results could differ from those estimates, and such differences could bematerial.

Reclassifications

Certain previously reported financial information has been reclassified to conform to the current period’s presentation. For a discussion of the reclassification of the financial presentation of our Offshore Division as discontinued operations, see Note C - "Discontinued Operations."

Cash Equivalents

We consider all highly liquid cash investments with a maturity of three months or less when purchased to be cash equivalents.

6

Restricted Cash

Restricted cash is classified as a current asset when it is expected to be repaid or settled in the next twelve month period. Restricted cash as of June 30, 2018 consists of cash used to secure outstanding letters of credit of our Compression Division.

Inventories

Inventories are stated at the lower of cost or net realizable value. Except for work in progress inventory discussed below, cost is determined using the weighted average method. Components of inventories as of June 30, 2018 and December 31, 2017 are as follows: 

	June 30, 2018		December 31, 2017
	(In Thousands)
Finished goods	$	60,011	$	66,377
Raw materials	3,934		4,027
Parts and supplies	44,585		33,632
Work in progress	24,837		11,402
Total inventories	$	133,367	$	115,438

Finished goods inventories include newly manufactured clear brine fluids as well as used brines that are repurchased from certain customers for recycling. Recycled brines are recorded at cost, using the weighted average method. Work in progress inventory consists primarily of new compressor packages located in the CCLP fabrication facility in Midland, Texas. The cost of work in progress is determined using the specific identification method. We write down the value of inventory by an amount equal to the difference between its cost and its estimated net realizable value.

Net Income (Loss) per Share

The following is a reconciliation of the weighted average number of common shares outstanding with the number of shares used in the computations of net income (loss) per common and common equivalent share:

	Three Months Ended   June 30,		Six Months Ended   June 30,
	2018	2017	2018	2017
	(In Thousands)
Number of weighted average common shares outstanding	122,474	114,534	125,553	114,375
Assumed exercise of equity awards and warrants	—	—	—	—
Average diluted shares outstanding	122,474	114,534	125,553	114,375

For thethree and six month periods ended June 30, 2018 and June 30, 2017, the average diluted shares outstanding excludes the impact of all outstanding equity awards and warrants, as the inclusion of these shares would have been anti-dilutive due to the net losses recorded during the periods. In addition, for the three and six month periods ended June 30, 2018 and June 30, 2017, the calculation of diluted earnings per common share excludes the impact of the CCLP Preferred Units, as the inclusion of the impact from conversion of the CCLP Preferred Units into CCLP common units would have been anti-dilutive.

Foreign Currency Translation

We have designated the euro, the British pound, the Norwegian krone, the Canadian dollar, theBrazilian real, the Argentine peso, and theMexican peso, as the functional currencies for our operations in Finland and Sweden, the United Kingdom, Norway, Canada, Brazil, Argentina,and certain of our operations in Mexico, respectively. The U.S. dollar is the designated functional currency for all of our other foreign operations. The cumulative translation effects of translating the applicable accounts from the functional currencies into the U.S. dollar at current exchange rates are included as a separate component ofequity. Foreign currency exchange (gains) and losses are included in other (income) expense, net and totaled $0.6 million and $(0.3) millionduring the

7

three and six month periods ended June 30, 2018 and $0.6 million and $1.2 million during the three and six month periods ended June 30, 2017, respectively.

On June 30, 2018, we determined the economy in Argentina to be highly inflationary. As a result of this determination, beginning July 1, 2018, our reporting of our operations in Argentina will reflect the remeasurement of the functional currency from the Argentine peso to the U.S. dollar.

Income Taxes

Our consolidated provision for income taxes during the first six months of 2017 and 2018 is primarily attributable to taxes in certain foreign jurisdictions and Texas gross margin taxes. Our consolidated effective tax rate for the six month period ended June 30, 2018 of negative 12.1% was primarily the result of losses generated in entities for which no related tax benefit has been recorded. The losses generated by these entities do not result in tax benefits due to offsetting valuation allowances being recorded against the related net deferred tax assets. We establish a valuation allowance to reduce the deferred tax assets when it is more likely than not that some portion or all of the deferred tax assets will not be realized. Included in our deferred tax assets are net operating loss carryforwards and tax credits that are available to offset future income tax liabilities in the U.S. as well as in certain foreign jurisdictions.

The Tax Cuts and Jobs Act (the “Act”) was enacted on December 22, 2017. At June 30, 2018 and December 31, 2017, we had not completed our accounting for the tax effects of enactment of the Act; however, in certain cases, as described below, we made reasonable estimates of the effects and recorded provisional amounts. We will continue to make and refine our calculations as additional analysis is completed. The accounting for the tax effects of the Act will be completed in 2018 as provided by the U.S. Securities and Exchange Commission’s SAB No. 118, Income Tax Accounting Implications of the Tax Cuts and Jobs Act. We recognized an income tax expense of $54.1 million in the fourth quarter of 2017 associated with the impact of the Act, which was fully offset by a decrease in the valuation allowance previously recorded on our net deferred tax assets. As such, the Act resulted in no net tax expense in the fourth quarter of 2017. We have considered in our estimated annual effective tax rate for 2018, the impact of the statutory changes enacted by the Act, including reasonable estimates of those provisions effective for the 2018 tax year. Our estimate on Global Intangible Low Taxed Income (“GILTI”), Foreign Derived Intangible Income (“FDII”), Base Erosion and Anti-Abuse Tax (“BEAT”), and IRC Section 163(j) interest limitation do not impact our effective tax rate for the three and six month periods ended June 30, 2018.

Asset Retirement Obligations

We operate facilities in various U.S. and foreign locations that are used in the manufacture, storage, and sale of our products, inventories, and equipment. These facilities are a combination of owned and leased assets. We are required to take certain actions in connection with the retirement of these assets. The values of our asset retirement obligations for these properties were $12.1 million and $11.7 million as of June 30, 2018 and December 31, 2017, respectively. Asset retirement obligations are recorded in accordance with Financial Accounting Standards Board ("FASB") Accounting Standards Codification ("ASC") 410, "Asset Retirement and Environmental Obligations," whereby the estimated fair value of a liability for asset retirement obligations is recognized in the period in which it is incurred and in which a reasonable estimate can be made. Such estimates are based on relevant assumptions that we believe are reasonable. We have reviewed our obligations in this regard in detail and estimated the cost of these actions. The associated asset retirement costs are capitalized as part of the carrying amount of these long-lived assets and are depreciated on a straight-line basis over the life of the assets.

The changes in the values of our asset retirement obligations during the three and six month period ended June 30, 2018, are as follows:

8

	Three Months Ended June 30, 2018			Six Months Ended June 30, 2018
	(In Thousands)
Beginning balance for the period, as reported	$	11,929		$	11,738
Activity in the period:
Accretion of liability	150			309
Revisions in estimated cash flows	(6		)	26
Ending balance	$	12,073		$	12,073

We review the adequacy of our asset retirement obligation liabilities whenever indicators suggest that the estimated cash flows underlying the liabilities have changed.

Fair Value Measurements

Fair value is defined as “the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date” within an entity’s principal market, if any. The principal market is the market in which the reporting entity would sell the asset or transfer the liability with the greatest volume and level of activity, regardless of whether it is the market in which the entity will ultimately transact for a particular asset or liability or if a different market is potentially more advantageous. Accordingly, this exit price concept may result in a fair value that may differ from the transaction price or market price of the asset or liability.

Under U.S. generally accepted accounting principles ("GAAP"), the fair value hierarchy prioritizes inputs to valuation techniques used to measure fair value. Fair value measurements should maximize the use of observable inputs and minimize the use of unobservable inputs, where possible. Observable inputs are developed based on market data obtained from sources independent of the reporting entity. Unobservable inputs may be needed to measure fair value in situations where there is little or no market activity for the asset or liability at the measurement date and are developed based on the best information available in the circumstances, which could include the reporting entity’s own judgments about the assumptions market participants would utilize in pricing the asset or liability.

We utilize fair value measurements to account for certain items and account balances within our consolidated financial statements. Fair value measurements are utilized on a recurring basis in the determination of the carrying values of the liabilities for the warrants to purchase 11.2 million shares of our common stock (the "Warrants") and the CCLP Preferred Units (as herein defined). We also utilize fair value measurements on a recurring basis in the accounting for our foreign currency derivative contracts. For these fair value measurements, we utilize the quoted value as determined by our counterparty financial institution (a level 2 fair value measurement). Fair value measurements are also utilized on a nonrecurring basis in certain circumstances, such as in the allocation of purchase consideration for acquisition transactions to the assets and liabilities acquired, including intangible assets and goodwill (a level 3 fair value measurement), the initial recording of our asset retirement obligations, and for the impairment of long-lived assets, including goodwill (a level 3 fair value measurement). The fair values of certain of our financial instruments, which include cash, restricted cash, accounts receivable, accounts payable, short-term borrowings, and long-term debt pursuant to our bank credit agreement, approximate their carrying amounts. The aggregate fair values of our long-term 11% Senior Note at June 30, 2018 and December 31, 2017, were approximately $128.2 million and $130.8 million, respectively, based on current interest rates on those dates, which were different from the stated interest rate on the 11% Senior Note. Those fair values compare to the face amount of the 11% Senior Note of $125.0 million both at June 30, 2018 and December 31, 2017. The fair values of the publicly traded CCLP 7.25% Senior Notes (as herein defined) at June 30, 2018 and December 31, 2017, were approximately $271.5 million and $279.7 million, respectively. Those fair values compare to the face amount of $295.9 million both at June 30, 2018 and December 31, 2017. The fair value of the publicly traded CCLP 7.50% Senior Secured Notes at June 30, 2018 was approximately $351.8 million. This fair value compares to aggregate principal amount of such notes at June 30, 2018 of $350.0 million. We calculated the fair values of our 11% Senior Note as of June 30, 2018 and December 31, 2017 internally, using current market conditions and average cost of debt (a level 2 fair value measurement). We based the fair values of the CCLP 7.25% Senior Notes and the CCLP 7.50% Senior Secured Notes as of June 30, 2018 on recent trades for these notes (a level 1 fair value measurement). See Note D - "Long-Term Debt and Other Borrowings," for further discussion.

9

The CCLP Preferred Units are valued using a lattice modeling technique that, among a number of lattice structures, includes significant unobservable items (a Level 3 fair value measurement). These unobservable items include (i) the volatility of the trading price of CCLP's common units compared to a volatility analysis of equity prices of CCLP's comparable peer companies, (ii) a yield analysis that utilizes market information related to the debt yields of comparable peer companies, and (iii) a future conversion price analysis. The fair valuation of the CCLP Preferred Units liability is increased by, among other factors, projected increases in CCLP's common unit price and by increases in the volatility and decreases in the debt yields of CCLP's comparable peer companies. Increases (or decreases) in the fair value of CCLP Preferred Units will increase (decrease) the associated liability and result in future adjustments to earnings for the associated valuation losses (gains). During the three and six month periods ended June 30, 2018, the changes in the fair value of the CCLP Preferred Units resulted in $0.5 million being credited to earnings and $0.8 millioncharged to earnings, respectively, in the consolidated statement of operations.

The Warrants are valued either by using their traded market prices (a level 1 fair value measurement) or, for periods when market prices are not available, by using the Black Scholes option valuation model that includes estimates of the volatility of the Warrants implied by their trading prices (a level 3 fair value measurement). As of June 30, 2018and December 31, 2017, the fair valuation methodology utilized for the Warrants was a level 3 fair value measurement, as there were no available traded market prices to value the Warrants. The fair valuation of the Warrants liability is increased by, among other factors, increases in our common stock price, and by increases in the volatility of our common stock price. Increases (or decreases) in the fair value of the Warrants will increase (decrease) the associated liability and result in future adjustments to earnings for the associated valuation losses (gains). During the three and six month periods ended June 30, 2018, the changes in the fair value of the Warrants liability resulted in $2.2 million being charged to earnings and $0.2 million being charged to earnings, respectively, in the consolidated statement of operations.

During the third quarter of 2017 and the first quarter of 2018, we issued stand-alone, cash-settled stock appreciation rights awards to an executive officer. These awards are valued by using the Black Scholes option valuation model and such fair value is recognized based on the portion of the requisite service period satisfied as of each valuation date. The fair valuation of the stock appreciation rights liability is increased by, among other factors, increases in our common stock price, and by increases in the volatility of our common stock price. These stock appreciation rights awards are reflected as an accrued liability in our consolidated balance sheet. Increases (or decreases) in the fair value of the stock appreciation rights awards will increase (decrease) the associated liability and result in future adjustments to earnings for the associated valuation losses (gains). During the six months ended June 30, 2018, the fair value of the stock appreciation rights increased $0.2 million, which was charged to earnings in the consolidated statement of operations.

A summary of these fair value measurements as of June 30, 2018 and December 31, 2017, is as follows:

				Fair Value Measurements Using
	Total as of			Quoted Prices in Active Markets for Identical Assets or Liabilities		Significant Other Observable Inputs			Significant Unobservable Inputs
Description	June 30, 2018			(Level 1)		(Level 2)			(Level 3)
	(In Thousands)
CCLP Series A Preferred Units	$	(45,644	)	$	—	$	—		$	(45,644	)
Warrants liability	(13,403		)	—		—			(13,403		)
Cash-settled stock appreciation rights	(287		)	—		—			(287		)
Asset for foreign currency derivative contracts	180			—		180			—
Liability for foreign currency derivative contracts	(241		)	—		(241		)	—
Net liability	$	(59,395	)

10

				Fair Value Measurements Using
	Total as of			Quoted Prices in Active Markets for Identical Assets or Liabilities		Significant Other Observable Inputs			Significant Unobservable Inputs
Description	December 31, 2017			(Level 1)		(Level 2)			(Level 3)
	(In Thousands)
CCLP Series A Preferred Units	$	(61,436	)	$	—	$	—		$	(61,436	)
Warrants liability	(13,202		)	—		—			(13,202		)
Cash-settled stock appreciation rights	(97		)	—		—			(97		)
Asset for foreign currency derivative contracts	241			—		241			—
Liability for foreign currency derivative contracts	(378		)	—		(378		)	—
Net liability	$	(74,872	)

New Accounting Pronouncements

In May 2014, the Financial Accounting Standards Board ("FASB") issued Accounting Standards Update ("ASU") 2014-09, "Revenue from Contracts with Customers." This ASU supersedes the revenue recognition requirements in Accounting Standards Codification ("ASC") 605, "Revenue Recognition," and most industry-specific guidance. This ASU is effective for annual periods beginning after December 15, 2017, and interim periods within those years, under either full or modified retrospective adoption.

On January 1, 2018, we adopted ASU 2014-09 and all related amendments ("ASU 2014-09"). We utilized the modified retrospective method of adoption. Comparative information has not been restated and continues to be reported under the accounting standards in effect for those periods.

The core principle of ASU 2014-09 is that an entity should recognize revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. ASU 2014-09 also provides a five-step model for determining revenue recognition for arrangements that are within the scope of the standard: (i) identify the contract(s) with a customer; (ii) identify the performance obligations in the contract; (iii) determine the transaction price; (iv) allocate the transaction price to the performance obligations in the contract; and (v) recognize revenue when (or as) the entity satisfies a performance obligation. We only apply the five-step model to contracts when it is probable that we will collect the consideration we are entitled to in exchange for the goods or services we transfer to the customer. At contract inception, once the contract is determined to be within the scope of ASU 2014-09, we assess the goods or services promised within each contract and determine those that are performance obligations and assess whether each promised good or service is distinct. We then recognize as revenue the amount of the transaction price that is allocated to the respective performance obligation when (or as) the performance obligation is satisfied. For a complete discussion of accounting for revenues, see Note J - Revenue from Contracts with Customers.

The impact from the adoption of ASU 2014-09 to our January 1, 2018 consolidated balance sheet, our June 30, 2018 consolidated balance sheet, and our consolidated results of operations for the three and six month periods ended June 30, 2018 was immaterial. The adoption of ASU 2014-09 had no impact to cash provided by operating, financing, or investing activities in our consolidated statement of cash flows. We do not expect the adoption of the new revenue standard to have a material impact to our net income on an ongoing basis.

In February 2016, the FASB issued ASU 2016-02, "Leases" (Topic 842) to increase comparability and transparency among different organizations. Organizations are required to recognize right-of-use lease assets and lease liabilities on the balance sheet related to the right to use the underlying asset for the lease term.In addition, through improved disclosure requirements, the ASU will enable users of financial statements to further understand the amount, timing, and uncertainty of cash flows arising from leases. We are currently assessing the potential effects of these changes to our consolidated financial statements. Our current operating lease portfolio consists primarily of real estate, vehicles, and equipment leases. Based on our preliminary assessment, upon adoption of the ASU, we will record significant right-to-use assets and lease obligations pursuant to the new requirements. We

11

are evaluating our portfolio of existing leases for consideration of the accounting impact of each lease. We are also evaluating and are developing internal policies to address the requirements under this ASU.

In June 2016, the FASB issued ASU 2016-13, "Financial Instruments - Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments." ASU 2016-13 amends the impairment model to utilize an expected loss methodology in place of the currently used incurred loss methodology, which will result in more timely recognition of losses. ASU 2016-13, which has an effective date of the first quarter of fiscal 2022, also applies to employee benefit plan accounting. We are currently assessing the potential effects of these changes to our consolidated financial statements and employee benefit plan accounting.

In August 2016, the FASB issued ASU 2016-15, "Statement of Cash Flows (Topic 230): Classification of Certain Cash Receipts and Cash Payments" to reduce diversity in practice in classification of certain transactions in the statement of cash flows. The ASU is effective for annual periods beginning after December 15, 2017, and interim periods within those annual periods, with early adoption permitted, under a retrospective transition adoption. We adopted this ASU during the three month period ended March 31, 2018, with no material impact to our consolidated financial statements.

In November 2016, the FASB issued ASU 2016-16, "Intra-Entity Transfers of Assets Other Than Inventory" which requires companies to account for the income tax effects of intercompany transfers of assets other than inventory when the transfer occurs. We adopted this ASU during the three month period ended March 31, 2018. The adoption of this standard did not have a material impact to our consolidated financial statements due to a previously recorded valuation allowance on our net deferred tax assets.

Additionally, in November 2016, the FASB issued ASU 2016-18, "Statement of Cash Flows (Topic 230): Restricted Cash" to reduce diversity in the presentation of restricted cash and restricted cash equivalents in the statement of cash flows. We adopted this ASU during the three month period ended March 31, 2018, resulting in restricted cash being classified with cash and cash equivalents in our consolidated statement of cash flows.

In January 2017, the FASB issued ASU 2017-04, "Intangibles-Goodwill and Other (Topic 350): Simplifying the Test for Goodwill Impairment" which simplifies how an entity is required to test goodwill for impairment by eliminating Step 2 from the goodwill impairment test. The ASU is effective for annual periods beginning after December 15, 2020, and interim periods within those annual periods, with early adoption permitted, under a prospective adoption. We do not expect the adoption of this standard to have a material impact on our consolidated financial statements.

In May 2017, the FASB issued ASU 2017-09, "Compensation-Stock Compensation (Topic 718): Scope of Modification Accounting" to clarify when to account for a change to the terms or conditions of a share-based payment award as a modification. We adopted this ASU during the three month period ended March 31, 2018, with no material impact to our consolidated financial statements.

In July 2017, the FASB issued ASU 2017-11, "Earnings Per Share (Topic 260); Distinguishing Liabilities from Equity (Topic 480); Derivatives and Hedging (Topic 815): (Part I) Accounting for Certain Financial Instruments with Down Round Features, (Part II) Replacement of the Indefinite Deferral for Mandatorily Redeemable Financial Instruments of Certain Nonpublic Entities and Certain Mandatorily Redeemable Noncontrolling Interests with a Scope Exception" to consider “down round” features when determining whether certain equity-linked financial instruments or embedded features are indexed to an entity’s own stock. Entities that present EPS under ASC 260 will recognize the effect of a down round feature in a freestanding equity-classified financial instrument only when it is triggered. The effect of triggering such a feature will be recognized as a dividend and a reduction to income available to common shareholders in basic EPS. The ASU is effective for annual periods beginning after December 15, 2018, and interim periods within those annual periods. We are currently assessing the potential effects of these changes to our consolidated financial statements.

In August 2017, the FASB issued ASU 2017-12, "Derivatives and Hedging (Topic 815): Targeted Improvements to Accounting for Hedging Activities" to change how companies account for and disclose hedges. The ASU is effective for annual periods beginning after December 15, 2018, and interim periods within those annual periods. We are currently assessing the potential effects of these changes to our consolidated financial statements.

In June 2018, the FASB issued ASU 2018-07, “Compensation-Stock Compensation (Topic 718): Improvements to Nonemployee Share-Based Payment Accounting” to align the measurement and classification guidance for share-based payments to nonemployees with the guidance currently applied to employees, with certain exceptions. The ASU is effective for annual periods beginning after December 15, 2018, and interim periods

12

within those annual periods, with early adoption permitted. We are currently assessing the potential effects of these changes to our consolidated financial statements.

NOTE B – ACQUISITIONS AND DISPOSITIONS

Acquisition of SwiftWater Energy Services

On February 28, 2018, pursuant to a purchase agreement dated February 13, 2018 (the "SwiftWater Purchase Agreement"), we purchased all of the equity interests in SwiftWater Energy Services, LLC ("SwiftWater"), which is engaged in the business of providing water management and water solutions to oil and gas operators in the Permian Basin market of Texas. Strategically, the acquisition of SwiftWater enhances our position as one of the leading integrated water management companies, providing water transfer, storage, and treatment services, along with proprietary automation technology and numerous other water-related services.

Under the terms of the SwiftWater Purchase Agreement, consideration of $42.0 million of cash, subject to a working capital adjustment, and 7,772,021 shares of our common stock (valued at $28.2 million) were paid at closing. Subsequent to closing, in August 2018, a working capital adjustment of approximately $1.0 million was paid. The sellers will also have the right to receive contingent consideration payments, in an aggregate amount of up to $15.0 million, calculated on EBITDA and revenue (each as defined in the SwiftWater Purchase Agreement) of the water management business of SwiftWater and all of our pre-existing operations in the Permian Basin in respect of the period from January 1, 2018 through December 31, 2019. The contingent consideration may be paid in cash or shares of our common stock, at our election.

As of June 30, 2018, our preliminary allocation of the SwiftWater purchase price is as follows (in thousands):

Current assets	$	16,880
Property and equipment	11,631
Intangible assets	41,960
Goodwill	15,560
Total assets acquired	86,031
Current liabilities	7,189
Total liabilities assumed	7,189
Net assets acquired	$	78,842

The above allocation of the purchase price to the SwiftWater net tangible assets and liabilities considers approximately $7.6 million of the initial estimated fair value for the liabilities associated with the contingent purchase price consideration. The fair value of the obligation to pay the contingent purchase price consideration was calculated based on the anticipated EBITDA and revenue as of the closing date for the operations of SwiftWater and our pre-existing operations in the Permian Basin and could increase (to $15.0 million) or decrease (to $0) depending on the actual earnings from these operations going forward. Increases or decreases in the value of the anticipated contingent purchase price consideration liability due to changes in the amounts paid or expected to be paid will be charged or credited to earnings in the period in which such changes occur. During the period from the closing date to June 30, 2018, the estimated fair value for the liabilities associated with the contingent purchase price consideration increased to $11.9 million, resulting in $4.3 million being charged to other expense during the three month period ended June 30, 2018.

The allocation of the purchase price to the SwiftWater net tangible assets and liabilities and identifiable intangible assets, as well as the contingent consideration liabilities, as of February 28, 2018, is preliminary and subject to revisions to the fair value calculations for certain of the tangible and identified intangible assets as well as the fair value calculation of the contingent purchase price consideration liability. The final purchase price allocation could differ materially from the preliminary allocation noted in the summary above. The preliminary allocation of purchase price includes approximately $15.6 million of deductible goodwill allocated to our Water & Flowback Services segment, and is supported by the strategic benefits discussed above and expected to be generated from

13

the acquisition. The acquired property and equipment is stated at fair value, and depreciation on the acquired property and equipment is computed using the straight-line method over the estimated useful lives of each asset. Machinery and equipment is depreciated using useful lives of 3 to 15 years; and automobiles and trucks are depreciated using useful lives of 3 to 4 years. The acquired intangible assets include $3.3 million for the trademark/tradename, $37.2 million for customer relationships, and $1.5 million of other intangible assets that are stated at estimated fair value and are amortized on a straight-line basis over their estimated useful lives, ranging from 5 to 16 years. These identified intangible assets are recorded net of $1.0 million of accumulated amortization as of June 30, 2018.

For the six month period ended June 30, 2018, our revenues, depreciation and amortization, and pretax earnings included $36.6 million, $2.1 million, and $7.0 million, respectively, associated with the SwiftWater acquisition after the closing on February 28, 2018. In addition, SwiftWater acquisition-related costs of approximately $0.4 million were incurred during the six month period ended June 30, 2018, consisting of external legal fees, transaction consulting fees, and due diligence costs. These costs have been recognized in general and administrative expenses in the consolidated statement of operations.

The pro forma information presented below has been prepared to give effect to the SwiftWater acquisition as if the transaction had occurred at the beginning of the periods presented. The pro forma information includes the impact from the allocation of the acquisition purchase price on depreciation and amortization. The pro forma information also excludes the SwiftWater acquisition-related costs charged to earnings during the 2018 period. The pro forma information is presented for illustrative purposes only and is based on estimates and assumptions we deemed appropriate. The following pro forma information is not necessarily indicative of the historical results that would have been achieved if the acquisition transaction had occurred in the past, and our operating results may have been different from those reflected in the pro forma information below. Therefore, the pro forma information should not be relied upon as an indication of the operating results that we would have achieved if the transaction had occurred at the beginning of the periods presented or the future results that we will achieve after the transaction.

	Three Months Ended June 30,						Six Months Ended June 30,
	2018			2017			2018			2017
	(In Thousands)
Revenues	$	260,072		$	191,891		$	473,603		$	362,824
Depreciation, amortization, and accretion	$	28,979		$	27,197		$	56,397		$	54,949
Gross profit	$	47,801		$	33,115		$	79,749		$	57,668
Net income (loss) from continuing operations	$	(12,132	)	$	(6,594	)	$	(30,988	)	$	(9,285	)
Net income (loss) attributable to TETRA stockholders	$	(5,965	)	$	(9,619	)	$	(57,412	)	$	(10,528	)

Sale of Offshore Division

On March 1, 2018, we closed a series of related transactions that resulted in the disposition of our Offshore Division. Pursuant to an Asset Purchase and Sale Agreement (the "Maritech Asset Purchase Agreement") with Orinoco Natural Resources, LLC ("Orinoco"), Orinoco purchased certain remaining offshore oil, gas and mineral leases and related assets of Maritech (the "Maritech Properties"). Immediately thereafter, we closed the transactions contemplated by a Membership Interest Purchase and Sale Agreement (the "Maritech Equity Purchase Agreement") with Orinoco, whereby Orinoco purchased all of the equity interests of Maritech (the "Maritech Equity Interests"). Immediately thereafter, we closed the transactions contemplated by an Equity Interest Purchase Agreement (the "Offshore Services Purchase Agreement") with Epic Offshore Specialty, LLC, an affiliate of Orinoco ("Epic Offshore"), whereby Epic Offshore (the "Offshore Services Sale") purchased all of the equity interests in the wholly owned subsidiaries that comprised our Offshore Services segment operations (the "Offshore Services Equity Interests").

Under the terms of the Maritech Asset Purchase Agreement, the Maritech Equity Purchase Agreement, and the Offshore Services Purchase Agreement, the consideration delivered by Orinoco and Epic Offshore for the Maritech Properties, the Maritech Equity Interests and the Offshore Services Equity Interests consisted of (i) the assumption by Orinoco of substantially all of the liabilities and obligations relating to the ownership, operation and

14

condition of the Maritech Properties and the provision of certain indemnities by Orinoco to us under the Maritech Asset Purchase Agreement, (ii) the assumption by Orinoco of substantially all of the liabilities of Maritech and the provision of certain indemnities by Orinoco under the Maritech Equity Purchase Agreement, (iii) the assumption by Epic Offshore of substantially all of the liabilities of the Offshore Services Equity Interests relating to the periods following the closing of the Offshore Services Sale and the provision of certain indemnities by Epic Offshore under the Offshore Services Purchase Agreement, (iv) cash in the amount $3.1 million, (v) a promissory note in the original principal amount of $7.5 million payable by Epic Offshore to us in full, together with interest at a rate of 1.52% per annum, on December 31, 2019, (vi) performance by Orinoco under a Bonding Agreement executed in connection with the Maritech Asset Purchase Agreement and the Maritech Equity Purchase Agreement whereby Orinoco provided at closing non-revocable performance bonds in an amount equal to $46.8 million to cover the performance by Orinoco and Maritech of the asset retirement obligations of Maritech, and (vii) the delivery of a personal guaranty agreement from Thomas M. Clarke and Ana M. Clarke guaranteeing the payment obligations of Orinoco under the Bonding Agreement (collectively, the "Transaction Consideration"). Pursuant to the Bonding Agreement, Orinoco is required to replace, within 90 days following the closing, the initial bonds delivered at closing with non-revocable performance bonds, meeting certain requirements, in the aggregate sum of $47.0 million. Orinoco has not delivered such replacement bonds and we are seeking to enforce the terms of the Bonding Agreement. The non-revocable performance bonds delivered at the closing remain in effect.

As a result of these transactions, we have effectively exited the businesses of our Offshore Services and Maritech segments, and these operations are reflected as discontinued operations in our consolidated financial statements. See Note C - "Discontinued Operations" for further discussion. Our consolidated pre-tax results of operations for the six month period ending June 30, 2018 included a loss on the disposal of our Offshore Division of $33.8 million, net of tax, including transaction costs of $1.4 million.

NOTE C – DISCONTINUED OPERATIONS

As discussed in Note B - "Acquisitions and Dispositions," on March 1, 2018, we closed a series of related transactions that resulted in the disposition of our Offshore Division. As a result, we have accounted for our Offshore Division, consisting of our Offshore Services and Maritech segments, as discontinued operations and have revised prior period financial statements to exclude these businesses from continuing operations. A summary of financial information related to our discontinued operations is as follows:

Reconciliation of the Line Items Constituting Pretax Loss from Discontinued Operations to the After-Tax Loss from Discontinued Operations

(in thousands)

	Three Months Ended June 30, 2018									Three Months Ended June 30, 2017
	Offshore Services			Maritech			Total			Offshore Services			Maritech			Total
Major classes of line items constituting pretax loss from discontinued operations
Revenue	$	10		$	—		$	10		$	28,262		$	175		$	28,437
Cost of revenues	(235		)	(98		)	(333		)	27,933			314			28,247
Depreciation, amortization, and accretion	—			—			—			2,463			373			2,836
General and administrative expense	284			—			284			1,594			174			1,768
Other (income) expense, net	55			—			55			2,718			(565		)	2,153
Pretax loss from discontinued operations	(94		)	98			4			(6,446		)	(121		)	(6,567		)
Pretax loss on disposal of discontinued operations							(25		)							—
Total pretax loss from discontinued operations							(21		)							(6,567		)
Income tax expense							—									86
Total loss from discontinued operations							$	(21	)							$	(6,653	)

15

	Six Months Ended June 30, 2018									Six Months Ended June 30, 2017
	Offshore Services			Maritech			Total			Offshore Services			Maritech			Total
Major classes of line items constituting pretax loss from discontinued operations
Revenue	$	4,487		$	187		$	4,674		$	36,623		$	406		$	37,029
Cost of revenues	10,888			139			11,027			38,672			601			39,273
Depreciation, amortization, and accretion	1,873			212			2,085			5,046			743			5,789
General and administrative expense	1,537			187			1,724			3,063			411			3,474
Other (income) expense, net	78			—			78			2,623			(565		)	2,058
Pretax loss from discontinued operations	(9,889		)	(351		)	(10,240		)	(12,781		)	(784		)	(13,565		)
Pretax loss on disposal of discontinued operations							(33,813		)							—
Total pretax loss from discontinued operations							(44,053		)							(13,565		)
Income tax (benefit) expense							(2,326		)							95
Total loss from discontinued operations							$	(41,727	)							$	(13,660	)

Reconciliation of Major Classes of Assets and Liabilities of the Discontinued Operations to Amounts Presented Separately in the Statement of Financial Position

(in thousands)

	June 30, 2018							December 31, 2017
	Offshore Services		Maritech			Total		Offshore Services		Maritech		Total
Carrying amounts of major classes of assets included as part of discontinued operations
Trade receivables	$	161	$	1,341		$	1,502	$	27,385	$	1,542	$	28,927
Inventories	—		—			—		4,616		—		4,616
Property, plant, and equipment	—		—			—		85,873		—		85,873
Other assets	54		(18		)	36		1,674		44		1,718
Total major classes of assets of the discontinued operations	$	215	$	1,323		$	1,538	$	119,548	$	1,586	$	121,134
Carrying amounts of major classes of liabilities included as part of discontinued operations
Trade payables	1,676		—			1,676		13,942		87		14,029
Accrued liabilities	4,608		2,059			6,667		10,944		2,278		13,222
Decommissioning and other asset retirement obligations	—		—			—		—		46,662		46,662
Total major classes of liabilities of the discontinued operations	$	6,284	$	2,059		$	8,343	$	24,886	$	49,027	$	73,913

16

NOTE D – LONG-TERM DEBT AND OTHER BORROWINGS

We believe TETRA's capital structure and CCLP's capital structure should be considered separately, as there are no cross default provisions, cross collateralization provisions, or cross guarantees between CCLP's debt and TETRA's debt.

Consolidated long-term debt as of June 30, 2018 and December 31, 2017, consists of the following:

		June 30, 2018		December 31, 2017
		(In Thousands)
TETRA	Scheduled Maturity
Bank revolving line of credit facility (presented net of the unamortized deferred financing costs of $1.0 million as of June 30, 2018)	September 30, 2019	$	59,906	$	—
11.0% Senior Note, Series 2015 (presented net of the unamortized discount of $3.6 million as of June 30, 2018 and $3.9 million as of December 31, 2017 and net of unamortized deferred financing costs of $3.1 million as of June 30, 2018 and $3.4 million as of December 31, 2017)	November 5, 2022	118,341		117,679
TETRA total debt		178,247		117,679
Less current portion		—		—
TETRA total long-term debt		$	178,247	$	117,679
CCLP
CCLP Bank Credit Facility (presented net of the unamortized deferred financing costs of $4.0 million as of December 31, 2017), terminated March 22, 2018	August 4, 2019	—		223,985
CCLP New Credit Agreement	June 29, 2023	—		—
CCLP 7.25% Senior Notes (presented net of the unamortized discount of $2.5 million as of June 30, 2018 and $2.8 million as of December 31, 2017 and net of unamortized deferred financing costs of $4.4 million as of June 30, 2018 and $5.0 million as of December 31, 2017)	August 15, 2022	288,989		288,191
CCLP 7.50% Senior Secured Notes (presented net of unamortized deferred financing costs of $6.5 million as of June 30, 2018)	April 1, 2025	343,503		—
CCLP total debt		632,492		512,176
Less current portion		—		—
Consolidated total long-term debt		$	810,739	$	629,855

As of June 30, 2018, TETRA (excluding CCLP) had a $61.0 million outstanding balance and$6.8 million in letters of creditagainst its Credit Agreement, leaving a net availability of $132.2 million. There was no balance outstanding under the CCLP New Credit Agreement (as defined below) as of June 30, 2018.

As described below, we and CCLP are in compliance with all covenants of our respective debt and senior note agreements as of June 30, 2018.

Our Long-Term Debt

Our Credit Agreement.

17

At June 30, 2018, our consolidated leverage ratio was 2.18 to 1 (compared to a 4.75 to 1 maximum allowed under the Credit Agreement) and our fixed charge coverage ratio was 2.87 to 1 (compared to a 1.25 to 1 minimum required under the Credit Agreement).

CCLP Long-Term Debt

CCLP Senior Secured Notes. On March 8, 2018, CCLP, and its wholly owned subsidiary, CSI Compressco Finance Inc. (together with CCLP, the "CCLP Issuers") entered into the Purchase Agreement (the “Purchase Agreement”) with Merrill Lynch, Pierce, Fenner & Smith Incorporated as representative of the initial purchasers listed in Schedule A thereto (collectively, the “Initial Purchasers”), pursuant to which the CCLPIssuers agreed to issue and sell to the Initial Purchasers $350 million aggregate principal amount of the CCLP Issuers’ 7.50% Senior Secured First Lien Notes due 2025 (the "CCLP Senior Secured Notes") (the "CCLP Offering") pursuant to an exemption from the registration requirements of the Securities Act of 1933, as amended (the "Securities Act").

The CCLP Issuers closed the Offering on March 22, 2018. The CCLP Senior Secured Notes were issued at par for net proceeds of approximately $343.8 million, after deducting certain financing costs. CCLP used a portion of the net proceeds to repay in full and terminate its existing bank Credit Agreement and plans to use the remainder for general partnership purposes, including the expansion of its compression fleet. The CCLP Senior Secured Notesare jointly and severally, and fully and unconditionally, guaranteed (the "Guarantees" and, together with the CCLP Senior Secured Notes, the "CCLP Senior Secured Note Securities")on a senior secured basis initially by each of CCLP's domestic restricted subsidiaries (other than CSI Compressco Finance Inc., certain immaterial subsidiaries and certain other excluded domestic subsidiaries) and are secured by a first-priority security interest in substantially all of the CCLP Issuers' and the Guarantors' assets (other than certain excluded assets) (the "Collateral") as collateral security for their obligations under the CCLP Senior Secured Notes, subject to certain permitted encumbrances and exceptions. On the closing date, CCLP entered into an indenture (the "Indenture") by and among the Obligors and U.S. Bank National Association, as trustee with respect to the Securities. The CCLP Senior Secured Notesaccrue interest at a rate of 7.50% per annum. Interest on the CCLP Senior Secured Notes is payable semi-annually in arrears on April 1 and October 1 of each year, beginning October 1, 2018. The CCLP Senior Secured Notes are scheduled to mature on April 1, 2025. During the six months ended June 30, 2018, CCLP incurred total financing costs of $6.7 million related to theCCLP Senior Secured Notes. These costs are deferred, netting against the carrying value of the amount outstanding.

On and after April 1, 2021, CCLP may redeem all or a part of the CCLP Senior Secured Notes, from time to time, at the following redemption prices (expressed as a percentage of principal amount), plus accrued and unpaid interest thereon to, but not including, the applicable redemption date, subject to the right of holders of record on the relevant record date to receive interest due on the relevant interest payment date, if redeemed during the 12-month period beginning on April 1 of the years indicated below:

Date	Price
2021	105.625	%
2022	103.750	%
2023	101.875	%
2024	100.000	%

In addition, at any time and from time to time before April 1, 2021, CCLP may, at its option, redeem all or a portion of the CCLP Senior Secured Notesat a redemption price equal to 100% of the principal amount thereof plus the Applicable Premium (as defined in the Indenture) with respect to theCCLP Senior Secured Notesplus accrued and unpaid interest, if any, to, but not including, the applicable redemption date, subject to the rights of holders of the CCLP Senior Secured Noteson the relevant record date to receive interest due on the relevant interest payment date.

Prior to April 1, 2021, CCLP may on one or more occasions redeem up to 35% of the principal amount of the CCLP Senior Secured Noteswith an amount of cash not greater than the amount of the net cash proceeds from one or more equity offerings at a redemption price equal to 107.500% of the principal amount of theCCLP Senior Secured Notesto be redeemed, plus accrued and unpaid interest, if any, to, but not including, the date of redemption, subject to the right of holders of record on the relevant record date to receive interest due on the

18

relevant interest payment date, provided that (a) at least 65% of the aggregate principal amount of theCCLP Senior Secured Notes originally issued on the issue date (excluding notes held by CCLP and its subsidiaries) remains outstanding after each such redemption; and (b) the redemption occurs within 180 days after the date of the closing of the equity offering.

If CCLP experiences certain kinds of changes of control, each holder of the CCLP Senior Secured Notes will be entitled to require CCLP to repurchase all or any part (equal to $2,000 or an integral multiple of $1,000 in excess of $2,000) of that holder’s CCLP Senior Secured Notes pursuant to an offer on the terms set forth in the Indenture. CCLP will offer to make a cash payment equal to 101% of the aggregate principal amount of the CCLP Senior Secured Notes repurchased plus accrued and unpaid interest, if any, on the CCLP Senior Secured Notes repurchased to the date of repurchase, subject to the rights of holders of the CCLP Senior Secured Notes on the relevant record date to receive interest due on the relevant interest payment date.

The Indenture contains customary covenants restricting CCLP's ability and the ability of CCLP restricted subsidiaries to: (i) pay distributions on, purchase or redeem CCLP common units or purchase or redeem any CCLP subordinated debt; (ii) incur or guarantee additional indebtedness or issue certain kinds of preferred equity securities; (iii) create or incur certain liens securing indebtedness; (iv) sell assets, including dispositions of the Collateral; (v) consolidate, merge or transfer all or substantially all of its assets; (vi) enter into transactions with affiliates; and (vii) enter into agreements that restrict distributions or other payments from its restricted subsidiaries to CCLP. These covenants are subject to a number of important limitations and exceptions, including certain provisions permitting CCLP, subject to the satisfaction of certain conditions, to transfer assets to certain of CCLP's unrestricted subsidiaries. Moreover, if the CCLP Senior Secured Notes receive an investment grade rating from at least two rating agencies and no default has occurred and is continuing under the Indenture, many of the restrictive covenants in the Indenture will be terminated. The Indenture also contains customary events of default and acceleration provisions relating to such events of default, which provide that upon an event of default under the Indenture, the Trustee or the holders of at least 25% in aggregate principal amount of the then outstanding CCLP Senior Secured Notesmay declare all of theCCLP Senior Secured Notesto be due and payable immediately.

On March 22, 2018, CCLP, the grantors named therein, the Trustee and U.S. Bank National Association, as the collateral trustee (the “Collateral Trustee”), entered into a collateral trust agreement (the “Collateral Trust Agreement”) pursuant to which the Collateral Trustee will receive, hold, administer, maintain, enforce and distribute the proceeds of all of its liens upon the collateral for the benefit of the current and future holders of the CCLP Senior Secured Notesand any future priority lien obligations, if any.

CCLP Bank Credit Facilities.

On March 22, 2018, in connection with the closing of the CCLP Offering, CCLP repaid all outstanding borrowings and obligations under its existing CCLP Credit Agreement with a portion of the net proceeds from the CCLP Offering, and terminated the CCLP Credit Agreement. As a result of the termination of the CCLP Credit Agreement, associated unamortized deferred financing costs of $3.5 million were charged to other (income) expense, net, during the three month period ended March 31, 2018.

On June 29, 2018, CCLP and two of its wholly owned subsidiaries (collectively the "CCLP Borrowers"), and certain of its wholly owned subsidiaries named therein as guarantors (the "CCLP New Credit Agreement Guarantors"), entered into a Loan and Security Agreement (the "CCLP New Credit Agreement") with the lenders thereto (the "Lenders"), and Bank of America, N.A., in its capacity as administrative agent, collateral agent, letter of credit issuer, and swing line lender. All of the CCLP Borrowers' obligations under the CCLP New Credit Agreement are guaranteed by certain of their existing and future domestic subsidiaries. The CCLP New Credit Agreement includes a maximum credit commitment of $50.0 million available for loans, letters of credit (with a sublimit of $25.0 million) and swingline loans (with a sublimit of $5.0 million). Such maximum credit commitment may be increased by $25.0 million in accordance with the terms and conditions of the CCLP New Credit Agreement.

The CCLP Borrowers may borrow funds under the CCLP New Credit Agreement to pay fees and expenses related to the CCLP New Credit Agreement and for the Borrower's ongoing working capital needs and for general business purposes. The revolving loans under the CCLP New Credit Agreement may be voluntarily prepaid, in whole or in part, without premium or penalty, subject to breakage or similar costs. The maturity date of the CCLP New Credit Agreement is June 29, 2023. As of June 30, 2018, no balance was outstanding under the CCLP New Credit Agreement. Because there was no outstanding balance on the CCLP New Credit Agreement, associated

19

deferred financing costs of $1.3 million as of June 30, 2018, were classified as other assets on the accompanying consolidated balance sheet.

Borrowings under the CCLP New Credit Agreement will bear interest at a rate per annum equal to, at the option of the CCLP Borrowers, either (i) London InterBank Offered Rate (“LIBOR”) (adjusted to reflect any required bank reserves) for an interest period equal to 30, 60, 90, 180 or 360 days (as selected by the CCLP Borrowers, subject to availability and with the consent of the Lenders for 360 days) plus a margin based on average daily excess availability or (ii) a base rate plus a margin based on average daily excess availability; such base rate shall be determined by reference to the highest of (a) the prime rate of interest announced from time to time by Bank of America, N.A., (b) the Federal Funds Rate (as defined in the CCLP New Credit Agreement) rate plus 0.5% per annum and (c) LIBOR (adjusted to reflect any required bank reserves) for a 30-day interest period on such day plus 1.0% per annum. Initially, from June 29, 2018 until the delivery of the financial statements for the fiscal quarter ending December 31, 2018, LIBOR-based loans will have an applicable margin of 2.00% per annum and base-rate loans will have an applicable margin of 1.00% per annum; thereafter, the applicable margin will range between 1.75% and 2.25% per annum for LIBOR-based loans and 0.75% and 1.25% per annum for base-rate loans, according to average daily excess availability when financial statements are delivered. In addition to paying interest on outstanding principal under the CCLP New Credit Agreement, the CCLP Borrowers will be required to pay a commitment fee in respect of the unutilized commitments thereunder, initially at the rate of 0.375% per annum until the delivery of the financial statements for the fiscal quarter ending September 30, 2018 and thereafter at the applicable rate ranging from 0.250% to 0.375% per annum, paid quarterly in arrears based on utilization of the commitments under the CCLP New Credit Agreement. The CCLP Borrowers will also be required to pay a customary letter of credit fee equal to the applicable margin on revolving credit LIBOR loans and fronting fees.

The CCLP New Credit Agreement contains certain affirmative and negative covenants, including covenants that restrict the ability of the CCLP Borrowers, the CCLP New Credit Agreement Guarantors and certain of their subsidiaries to take certain actions including, among other things and subject to certain significant exceptions, the incurrence of debt, the granting of liens, the making of investments, entering into transactions with affiliates, the payment of dividends and the sale of assets. The CCLP New Credit Agreement also contains a requirement that the CCLP Borrowers comply, during certain periods, with a fixed charge coverage ratio of 1.0 to 1.0.

All obligations under the CCLP New Credit Agreement and the guarantees of those obligations are secured, subject to certain exceptions, by a first priority security interest for the benefit of the Lenders in the CCLP Borrowers’ and the CCLP New Credit Agreement Guarantors’ present and future accounts receivable, inventory and related assets and proceeds of the foregoing (the “CCLP ABL Collateral”).

NOTE E – CCLP SERIES A CONVERTIBLE PREFERRED UNITS

During 2016, CCLP entered into Series A Preferred Unit Purchase Agreements (the “CCLP Unit Purchase Agreements”) with certain purchasers to issue and sell in two private placements (the "Initial Private Placement" and "Subsequent Private Placement," respectively) an aggregate of 6,999,126 of CSI Compressco LP Series A Convertible Preferred Units representing limited partner interests in CCLP (the “CCLP Preferred Units”) for a cash purchase price of $11.43 per CCLP Preferred Unit (the “Issue Price”), resulting in total 2016 net proceeds to CCLP, after deducting certain offering expenses, of $77.3 million. We purchased 874,891 of the CCLP Preferred Units in the Initial Private Placement at the aggregate Issue Price of $10.0 million.

We and the other holders of CCLP Preferred Units (each, a “CCLP Preferred Unitholder”) receive quarterly distributions, which are paid in kind in additional CCLP Preferred Units, equal to an annual rate of 11.00% of the Issue Price ($1.2573 per unit annualized), subject to certain adjustments. The rights of the CCLP Preferred Units include certain anti-dilution adjustments, including adjustments for economic dilution resulting from the issuance of CCLP common units in the future below a set price.

A ratable portion of the CCLP Preferred Units has been, and will continue to be, converted into CCLP common units on the eighth day of each month over a period of thirty months that began in March 2017 (each, a “Conversion Date”), subject to certain provisions of the Second Amended and Restated CCLP Partnership Agreement that may delay or accelerate all or a portion of such monthly conversions. On each Conversion Date, a portion of the CCLP Preferred Units will convert into CCLP common units representing limited partner interests in CCLP in an amount equal to, with respect to each CCLP Preferred Unitholder, the number of CCLP Preferred Units held by such CCLP Preferred Unitholder divided by the number of Conversion Dates remaining, subject to

20

adjustment described in the Second Amended and Restated CCLP Partnership Agreement, with the conversion price (the "Conversion Price") determined by the trading prices of the common units over the prior month, among other factors, and as otherwise impacted by the existence of certain conditions related to the CCLP common units. Based on the number of CCLP Preferred Units outstanding as of June 30, 2018, the maximum aggregate number of CCLP common units that could be required to be issued pursuant to the conversion provisions of the CCLP Preferred Units is approximately 25.5 million CCLP common units; however, CCLP may, at its option, pay cash, or a combination of cash and common units, to the CCLP Preferred Unitholders instead of issuing common units on any Conversion Date, subject to certain restrictions as described in the Second Amended and Restated CCLP Partnership Agreement. The total number of CCLP Preferred Units outstanding as of June 30, 2018 was 4,458,803, of which we held 559,975.

Because the CCLP Preferred Units may be settled using a variable number of CCLP common units, the fair value of the CCLP Preferred Units, net of the units we purchased, is classified as long-term liabilities on our consolidated balance sheet in accordance with ASC 480 "Distinguishing Liabilities and Equity." The fair value of the CCLP Preferred Units as of June 30, 2018 was $45.6 million. During the three and six month period ended June 30, 2018, changes in the fair value during each period, resulted in $0.5 million being credited to earnings and $0.8 million being charged to earnings, respectively, in the accompanying consolidated statements of operations. During the three and six month period ended June 30, 2017, changes in the fair value resulted in $4.8 million being credited to earnings and $3.2 million being credited to earnings, respectively, in the accompanying consolidated statements of operations.

Based on the conversion provisions of the CCLP Preferred Units, and using the Conversion Price calculated as of June 30, 2018, the theoretical number of CCLP common units that would be issued if all of the outstanding CCLP Preferred Units were converted on June 30, 2018 on the same basis as the monthly conversions would be approximately 9.9 million CCLP common units, with an aggregate market value of $55.2 million. A $1 decrease in the Conversion Price would result in the issuance of 2.4 million additional CCLP common units pursuant to these conversion provisions.

NOTE F – MARKET RISKS AND DERIVATIVE CONTRACTS

We are exposed to financial and market risks that affect our businesses. We have concentrations of credit risk as a result of trade receivables owed to us by companies in the energy industry. We have currency exchange rate risk exposure related to transactions denominated in foreign currencies as well as to investments in certain of our international operations. As a result of our variable rate bank credit facility, we face market risk exposure related to changes in applicable interest rates. Our financial risk management activities may at times involve, among other measures, the use of derivative financial instruments, such as swap and collar agreements, to hedge the impact of market price risk exposures.

Derivative Contracts

Foreign Currency Derivative Contracts. We and CCLP each enter into 30-day foreign currency forward derivative contracts with third parties as part of a program designed to mitigate the currency exchange rate risk exposure on selected transactions of certain foreign subsidiaries. As of June 30, 2018, we and CCLP had the following foreign currency derivative contracts outstanding relating to portions of our foreign operations:

Derivative Contracts	US Dollar Notional Amount		Traded Exchange Rate	Settlement Date
	(In Thousands)
Forward purchase Euro	$	464	1.16	7/19/2018
Forward sale pounds sterling	2,521		1.33	7/19/2018
Forward sale Canadian dollar	5,941		1.31	7/19/2018
Forward purchase Mexican peso	1,692		20.68	7/19/2018
Forward purchase Norwegian krone	985		8.12	7/19/2018
Forward sale Mexican peso	6,083		20.71	7/19/2018

21

Derivative Contracts	Swedish Krona Notional Amount	Traded Exchange Rate	Settlement Date
	(In Thousands)
Forward purchase Euro	27,437	10.16	7/19/2018

Under this program, we and CCLP may enter into similar derivative contracts from time to time. Although contracts pursuant to this program will serve as an economic hedge of the cash flow of our currency exchange risk exposure, they are not formally designated as hedge contracts or qualify for hedge accounting treatment. Accordingly, any change in the fair value of these derivative instruments during a period will be included in the determination of earnings for that period.

The fair values of foreign currency derivative instruments are based on quoted market values as reported to us by our counterparty (a level 2 fair value measurement). The fair values of our and CCLP's foreign currency derivative instruments as of June 30, 2018 and December 31, 2017, are as follows:

Foreign currency derivative instruments	Balance Sheet Location	Fair Value at June 30, 2018			Fair Value at December 31, 2017
		(In Thousands)
Forward purchase contracts	Current assets	$	158		$	111
Forward sale contracts	Current assets	22			130
Forward sale contracts	Current liabilities	(241		)	(255		)
Forward purchase contracts	Current liabilities	—			(113		)
Net asset (liability)		$	(61	)	$	(127	)

None of the foreign currency derivative contracts contain credit risk related contingent features that would require us to post assets or collateral for contracts that are classified as liabilities. During the three and six month periods ended June 30, 2018, we recognized $0.7 million and $0.8 millionof net gains (losses), respectively, reflected in other (income) expense, net, associated with our foreign currency derivative program. During the three and six month periods ended June 30, 2017, we recognized $0.4 million and $1.1 million of net gains (losses), respectively, reflected in other (income) expense, net, associated with our foreign currency derivative program.

22

NOTE G – EQUITY

Changes in equity for the three and six month periods ended June 30, 2018 and 2017 are as follows:

	Three Months Ended June 30,
	2018									2017
	TETRA			Non- controlling Interest			Total			TETRA			Non- controlling Interest			Total
	(In Thousands)
Beginning balance for the period	$	185,425		$	140,036		$	325,461		$	234,578		$	154,349		$	388,927
Net income (loss)	(5,965		)	(6,188		)	(12,153		)	(10,991		)	(3,628		)	(14,619		)
Foreign currency translation adjustment	(7,495		)	(1,754		)	(9,249		)	3,293			(325		)	2,968
Comprehensive Income (loss)	(13,460		)	(7,942		)	(21,402		)	(7,698		)	(3,953		)	(11,651		)
Issuance of common stock, net	2			—			2			(5		)	—			(5		)
Conversions of CCLP Series A Preferred	—			9,272			9,272			—			7,632			7,632
Distributions to CCLP public unitholders	—			(4,624		)	(4,624		)	—			(3,696		)	(3,696		)
Equity-based compensation	1,905			358			2,263			2,039			783			2,822
Treasury stock and other	86			4			90			(241		)	(61		)	(302		)
Ending balance as of June 30	$	173,958		$	137,104		$	311,062		$	228,673		$	155,054		$	383,727
	Six Months Ended June 30,
	2018									2017
	TETRA			Non- controlling Interest			Total			TETRA			Non- controlling Interest			Total
	(In Thousands)
Beginning balance for the period	$	208,080		$	144,481		$	352,561		$	233,523		$	166,943		$	400,466
Net income (loss)	(59,613		)	(15,303		)	(74,916		)	(13,454		)	(12,417		)	(25,871		)
Foreign currency translation adjustment	(5,827		)	(2,139		)	(7,966		)	5,345			(184		)	5,161
Comprehensive Income (loss)	(65,440		)	(17,442		)	(82,882		)	(8,109		)	(12,601		)	(20,710		)
Issuance of stock for business combination and other	28,117			—			28,117			(16		)	—			(16		)
Conversions of CCLP Series A Preferred	—			19,375			19,375			—			10,020			10,020
Distributions to CCLP public unitholders	—			(8,982		)	(8,982		)	—			(10,944		)	(10,944		)
Equity-based compensation	3,339			(297		)	3,042			3,552			1,739			5,291
Treasury stock and other	(138		)	(31		)	(169		)	(277		)	(103		)	(380		)
Ending balance as of June 30	$	173,958		$	137,104		$	311,062		$	228,673		$	155,054		$	383,727

Activity within the foreign currency translation adjustment account during the periods includes no reclassifications to net income (loss).

NOTE H – COMMITMENTS AND CONTINGENCIES

Litigation

We are named defendants in several lawsuits and respondents in certain governmental proceedings arising in the ordinary course of business. While the outcome of lawsuits or other proceedings against us cannot be predicted with certainty, management does not consider it reasonably possible that a loss resulting from such lawsuits or other proceedings in excess of any amounts accrued has been incurred that is expected to have a material adverse impact on our financial condition, results of operations, or liquidity.

On March 18, 2011, we filed a lawsuit in the Circuit Court of Union County, Arkansas, asserting claims of professional negligence, breach of contract and other claims against the engineering firm we hired for engineering design, equipment, procurement, advisory, testing and startup services for our El Dorado, Arkansas chemical production facility. The engineering firm disputed our claims and promptly filed a motion to compel the matter to

23

arbitration. After a lengthy procedural dispute in Arkansas state court, arbitration proceedings were initiated on November 15, 2013. Ultimately, on December 16, 2016, the arbitration panel ruled in our favor, declared us as the prevailing party, and awarded us a total net amount of $12.8 million. We received full payment of the $12.8 million final award on January 5, 2017, and this amount was credited to earnings in the accompanying consolidated statement of operations for the six months ended June 30, 2017.

Other Contingencies

During 2011, in connection with the sale of a significant majority of Maritech's oil and gas producing properties, the buyers of the properties assumed the associated decommissioning liabilities pursuant to the purchase and sale agreements. In March 2018, we closed the Maritech Asset Purchase Agreement with Orinoco that provided for the purchase by Orinoco of the Maritech Properties. Also in March 2018, we finalized the Maritech Equity Purchase Agreement with Orinoco that provided for the purchase by Orinoco of the Maritech Equity Interests. As a result of these transactions, we have effectively exited the businesses of our Offshore Services and Maritech segments and Orinoco has assumed all of Maritech's remaining abandonment and decommissioning obligations. For further discussion of the sale of the Maritech Properties, see Note B - "Acquisitions and Dispositions."

NOTE I – INDUSTRY SEGMENTS

Following the transactions closed during the three month period ended March 31, 2018, we reorganized our reporting segments and now manage our operations through three Divisions: Completion Fluids & Products, Water & Flowback Services, and Compression. Our Completion Fluids & Products Division was previously reported as our Fluids Division, and included our water management services operations. Following the acquisition of SwiftWater in February 2018, our expanded water management operations are now included with our production testing operations as part of our Water & Flowback Services Division. The operations of our previous Offshore Division, consisting of our previous Offshore Services and Maritech segments, are now reported as discontinued operations following their disposal in March 2018.

Our Completion Fluids & Products Division manufactures and markets clear brine fluids, additives, and associated products and services to the oil and gas industry for use in well drilling, completion, and workover operations in the United States and in certain countries in Latin America, Europe, Asia, the Middle East, and Africa. The division also markets liquid and dry calcium chloride products manufactured at its production facilities or purchased from third-party suppliers to a variety of markets outside the energy industry.

Our Water & Flowback Services Division provides domestic onshore oil and gas operators with comprehensive water management services. The division also provides frac flowback, production well testing, offshore rig cooling, and other associated services in many of the major oil and gas producing regions in the United States, Mexico, and Canada, as well as in basins in certain regions in South America, Africa, Europe, the Middle East, and Australia.

The Compression Division is a provider of compression services and equipment for natural gas and oil production, gathering, transportation, processing, and storage. The Compression Division's equipment sales business includes the fabrication and sale of standard compressor packages, custom-designed compressor packages, and oilfield pump systems designed and fabricated at the division's facilities. The Compression Division's aftermarket services business provides compressor package reconfiguration and maintenance services as well as providing compressor package parts and components manufactured by third-party suppliers. The Compression Division provides its services and equipment to a broad base of natural gas and oil exploration and production, midstream, transmission, and storage companies operating throughout many of the onshore producing regions of the United States as well as in a number of foreign countries, including Mexico, Canada, and Argentina.

We generally evaluate the performance of and allocate resources to our segments based on profit or loss from their operations before income taxes and nonrecurring charges, return on investment, and other criteria. Transfers between segments and geographic areas are priced at the estimated fair value of the products or services as negotiated between the operating units. “Corporate overhead” includes corporate general and administrative expenses, corporate depreciation and amortization, interest income and expense, and other income and expense.

24

 Summarized financial information concerning the business segments is as follows:

	Three Months Ended   June 30,						Six Months Ended   June 30,
	2018			2017			2018			2017
	(In Thousands)
Revenues from external customers
Product sales
Completion Fluids & Products Division	$	72,287		$	67,308		$	123,344		$	119,519
Water & Flowback Services Division	—			145			676			6,258
Compression Division	35,400			18,727			59,046			28,381
Consolidated	$	107,687		$	86,180		$	183,066		$	154,158
Services
Completion Fluids & Products Division	$	4,268		$	6,687		$	6,317		$	10,703
Water & Flowback Services Division	83,593			30,479			143,770			61,989
Compression Division	64,524			56,585			126,300			112,490
Consolidated	$	152,385		$	93,751		$	276,387		$	185,182
Interdivision revenues
Completion Fluids & Products Division	$	1		$	—		$	(1	)	$	1
Water & Flowback Services Division	53			462			275			1,018
Compression Division	—			—			—
Interdivision eliminations	(54		)	(462		)	(274		)	(1,019		)
Consolidated	$	—		$	—		$	—		$	—

Total revenues
Completion Fluids & Products Division	$	76,556		$	73,995		$	129,660		$	130,223
Water & Flowback Services Division	83,646			31,086			144,721			69,265
Compression Division	99,924			75,312			185,346			140,871
Interdivision eliminations	(54		)	(462		)	(274		)	(1,019		)
Consolidated	$	260,072		$	179,931		$	459,453		$	339,340
Income (loss) before taxes
Completion Fluids & Products Division	$	9,981		$	16,616		$	12,430		$	36,088
Water & Flowback Services Division	8,311			(3,920		)	14,859			(5,186		)
Compression Division	(8,655		)	(6,180		)	(22,673		)	(20,513		)
Interdivision eliminations	4			4			4			(161		)
Corporate Overhead(1)	(19,327		)	(11,169		)	(34,239		)	(19,041		)
Consolidated	$	(9,686	)	$	(4,649	)	$	(29,619	)	$	(8,813	)

25

	June 30, 2018			December 31, 2017
	(In Thousands)
Total assets
Completion Fluids & Products Division	$	303,396		$	293,507
Water & Flowback Services Division	228,368			139,771
Compression Division	880,385			784,745
Corporate Overhead and eliminations	(34,068		)	(30,543		)
Assets of discontinued operations	1,538			121,134
Consolidated	$	1,379,619		$	1,308,614

(1) Amounts reflected include the following general corporate expenses:

	Three Months Ended   June 30,					Six Months Ended   June 30,
	2018		2017			2018		2017
	(In Thousands)
General and administrative expense	$	11,871	$	12,051		$	24,469	$	21,606
Depreciation and amortization	164		118			315		209
Interest expense	4,877		4,240			8,884		8,014
Warrants fair value adjustment (income)/expense	2,195		(5,545		)	201		(11,521		)
Other general corporate (income) expense, net	220		305			370		733
Total	$	19,327	$	11,169		$	34,239	$	19,041

26

NOTE J – REVENUE FROM CONTRACTS WITH CUSTOMERS

Performance Obligations.Revenue is recognized when performance obligations under the terms of a contract with our customer are satisfied. Generally this occurs with the transfer of control of our products or services to our customers. Revenue is measured as the amount of consideration we expect to receive in exchange for transferring products or providing services to our customers. For a general discussion of the nature of the goods and services that we provide, see Note I - "Industry Segments."

Product Sales. Product sales revenues are recognized at a point in time when we transfer control of our product offerings to our customers, generally when we ship products from our facility to our customer. The product sales for our Completion Fluid & Products Division consist primarily of clear brine fluids, additives, and associated manufactured products. Product sales for our Water & Flowback Services Division are typically attributed to specific performance obligations within certain production testing service arrangements. Parts and equipment sales comprise the product sales for the Compression Division.

Services. Service revenues represent revenue recognized over time, as our customer arrangements typically provide agreed upon day-rates (monthly service rates for compression services) and we recognize service revenue based upon the number of days services have been performed. Service revenue recognized over time is associated with a majority of our Water & Flowback Services Division arrangements, compression service and aftermarket service contracts within our Compression Division, and a small portion of Completion Fluids & Products Division revenue that is associated with completion fluid service arrangements. With the exception of the initial terms of the compression services contracts for medium- and high-horsepower compressor packages of our Compression Division, our customer contracts are generally for terms of one year or less. The majority of the service arrangements in the Water & Flowback Services Division are for a period of 90 days or less. Within our Compression Division service revenue,most aftermarket service revenues are recognized at a point in time when we transfer control of our products and complete the delivery of services to our customers.

We receive cash equal to the invoice price for most product sales and services and payment terms typically range from 30 to 60 days from the date we invoice our customer. Since the period between when we deliver products or services and when the customer pays for products or services are not expected to exceed one year, we have elected not to calculate or disclose a financing component for our customer contracts.

Depending on the terms of the arrangement, we may also defer the recognition of revenue for a portion of the consideration received because we have to satisfy a future performance obligation. For example, consideration received from customers during the fabrication of new compressor packages is typically deferred until control of the compressor package is transferred to our customer. For any arrangements with multiple performance obligations, we use management's estimated selling price to determine the stand-alone selling price for separate performance obligations. For revenue associated with mobilization of service equipment as part of a service contract arrangement, such revenue, if significant, is deferred and amortized over the estimated service period. As of June 30, 2018, we had$6.4 millionof remaining performance obligations related to our compression service contracts. As a practical expedient, this amount does not reflect revenue for compression service contracts whose original expected duration is less than 12 months and does not consider the effects of the time value of money. The remaining performance obligations are expected to be recognized through 2022 as follows (in thousands):

	2018		2019		2020		2021		2022		Total
	(In Thousands)
Compression service contracts remaining performance obligations	$	1,791	$	3,209	$	1,027	$	253	$	77	$	6,357

Sales taxes, value added taxes, and other taxes we collect concurrent with revenue-producing activities are excluded from revenue. We have elected to recognize the cost for freight and shipping costs as part of cost of product sales when control over our products (i.e. delivery) has transferred to the customer.

Use of Estimates. Contracts where the amount of revenue that will ultimately be realized is subject to uncertainties not fully known as of the time revenue is recognized are known as variable consideration arrangements. In recognizing revenue for these arrangements, the amount of variable consideration recognized is limited so that it is probable that significant amounts of revenues will not be reversed in future periods when the

27

uncertainty is resolved. For products returned by the customer, we estimate the expected returns based on an analysis of historical experience. For volume discounts earned by the customer, we estimate the discount (if any) based on our estimate of the total expected volume of products sold or services to be provided to the customer during the discount period. In certain contracts for the sale of clear brine fluids, we may agree to issue credits for the repurchase of reclaimable used fluids from certain customers at an agreed price that is based on the condition of the fluids. For sales of clear brine fluids, we adjust the revenue recognized in the period of shipment by the estimated amount of the credit expected to be issued to the customer, and this estimate is based on historical experience. As ofJune 30, 2018, the amount of remaining credits expected to be issued for the repurchase of reclaimable used fluids was$1.1 millionthat were recorded in inventory (right of return asset) and accounts payable. There were no material differences between amounts recognized during the three month period ended June 30, 2018, compared to estimates made in a prior period from these variable consideration arrangements.

Contract Assets and Liabilities.Contract assets arise when we transfer products or perform services in fulfillment of a contract obligation but must perform other performance obligations before being entitled to payment. Generally, once we have transferred products or performed services for the customer pursuant to a contract, we recognize revenue and trade accounts receivable, as we are entitled to payment that is unconditional. Any contract assets, along with billed and unbilled accounts receivable, are included in Trade Accounts Receivable in our consolidated balance sheets.Contract liabilities arise when we receive consideration, or consideration is unconditionally due, from a customer prior to transferring products or services to the customer under the terms of a sales contract. We classify contract liabilities as Unearned Income in our consolidated balance sheets. Such deferred revenue typically results from advance payments received on sales of compressor equipment prior to when it is completed and transferred to the customer in accordance with the customer contract.

As of June 30, 2018 and December 31, 2017, contract assets were immaterial. The following table reflects the changes in our contract liabilities during the six month period ended June 30, 2018:

	June 30, 2018
	(In Thousands)
Unearned Income, beginning of period	$	17,050
Additional unearned income	59,360
Revenue recognized	(47,276		)
Unearned income, end of period	$	29,134

Bad debt expense on accounts receivables and contract assets was $0.1 million and $0.3 million during thethree and sixmonth periods endedJune 30, 2018, respectively, and$0.3 millionand$0.9 millionduring thethree and sixmonth periods endedJune 30, 2017, respectively. During the three month period endedJune 30, 2018, contract liabilities increased due to unearned income for consideration received on new compressor equipment being fabricated. During thesixmonth period endedJune 30, 2018,$47.3 million of unearned income was recognized as product sales revenue, primarily associated with deliveries of compression equipment.

Contract Costs. When costs are incurred to obtain contracts, such as professional fees and sales bonuses, such costs are deferred and amortized over the expected period of benefit. Costs of mobilizing service equipment necessary to perform under service contracts, if significant, are deferred and amortized over the estimated service period, which is generally a few weeks. As of June 30, 2018, such contract costs were immaterial. Where applicable, we establish provisions for estimated obligations pursuant to product warranties by accruing for estimated future product warranty cost in the period of the product sale. Such estimates are based on historical warranty loss experience. Major components of fabricated compressor packages have manufacturer warranties that we pass through to the customer.

Disaggregation of Revenue. We disaggregate revenue from contracts with customers into Product Sales and Services within each segment, as noted in our three reportable segments in Note I. In addition, we disaggregate revenue from contracts with customers by geography based on the following table below.

28

	Three months ended June 30,				Six months ended June 30,
	2018		2017		2018		2017
	(In Thousands)
Completion Fluids & Products
U.S.	34,112		40,870		62,020		81,672
International	42,444		33,125		67,640		48,551
	76,556		73,995		129,660		130,223
Water & Flowback Services
U.S.	70,838		24,277		117,877		48,417
International	12,808		6,809		26,844		20,848
	83,646		31,086		144,721		69,265
Compression
U.S.	90,927		68,887		167,907		126,856
International	8,997		6,425		17,439		14,015
	99,924		75,312		185,346		140,871
Interdivision eliminations
U.S.	—		—		1		(1	)
International	(54	)	(462	)	(275	)	(1,018	)
	(54	)	(462	)	(274	)	(1,019	)
Total Revenue
U.S.	195,877		134,034		347,805		256,944
International	64,195		45,897		111,648		82,396
	260,072		179,931		459,453		339,340

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

The following discussion and analysis of financial condition and results of operations should be read in conjunction with our unaudited consolidated financial statements and accompanying notes included in this Quarterly Report.In addition, the following discussion and analysis also should be read in conjunction with our Annual Report on Form 10-K for the year ended December 31, 2017 filed with the SEC on March 5, 2018. This discussion includes forward-looking statements that involve certain risks and uncertainties.

Business Overview  

Our consolidated results of operations during the three month period ended June 30, 2018, reflect the increased demand for many of our products and services compared to the corresponding prior year period. Consolidated revenues increased by 44.5% compared to the corresponding prior year quarter, improving for each of our divisions. This increase was led by a significant increase in Water & Flowback Services revenues, which included the impact of our February 2018 acquisition of SwiftWater Energy Services, LLC ("SwiftWater") along with strong growth in our existing operations. Increased domestic onshore rig count and activity levels in key markets has driven the improved operating results. The contribution from SwiftWater on Water & Flowback Services Division revenues and earnings is expected to continue going forward as we capture additional operating and administrative efficiencies with the acquired operations. Our Compression Division also reported increased revenues, as increased demand for compression services has resulted in increased utilization and customer contract pricing. New compressor equipment sales have also increased, and new orders for equipment have maintained the existing new equipment sales backlog. Our Completion Fluids & Products Division also reported a modest increase in revenues, as offshore activity levels remain challenged, although earnings decreased compared to the prior year quarter due to the completion of a TETRA CS Neptune^(R) completion fluid project during 2017. In July 2018, we announced that we have entered into a global joint marketing and development agreement with Halliburton Energy Services, Inc. ("Halliburton") for the sale and distribution of TETRA CS Neptune completion fluids. Through this collaborative agreement with Halliburton, we expect to expand sales and jointly develop new oil and gas completion fluid product offerings based on our respective technologies and resource capabilities. Despite increased consolidated operating and administrative expenses and the working capital challenges accompanying our growing

29

operations, we anticipate continuing improved revenues and increasing operating cash flows during the remainder of 2018.

Following the strategic transactions that closed during the first quarter of 2018, we have continued to grow our core businesses to capitalize on the improving demand for our products and services. While continuing to consider suitable acquisition opportunities, we have grown organically through an increased capital expenditure program for our core businesses in selected markets. Our Compression Division increased its growth capital expenditure levels during the first six months of 2018 compared to the corresponding prior year period, as it continues to increase its compression equipment fleet to meet the increasing customer demand for compression services. In addition, we have also increased capital expenditure levels for our Water & Flowback Services Division, as we selectively grow our capacity in certain markets. As a result, growth capital expenditures have increased significantly during the first half of 2018 compared to the prior year period. To fund its growth, our CSI Compressco LP ("CCLP") subsidiary enhanced its long-term debt structure. Following the March 2018 repayment of its previous bank credit facility and the issuance of the 7.50% Senior Secured First Lien Notes due 2025 (the "CCLP Senior Secured Notes"), in June 2018, CCLP entered into that certain Loan and Security Agreement (the "CCLP New Credit Agreement"), which provides up to $50.0 million to fund ongoing working capital and letter of credit needs and for general business purposes. CCLP also had $51.4 million of available cash as of June 30, 2018, which is available to fund additional Compression Division growth capital expenditures. We also are pursuing opportunities to enhance our long-term debt structure in order to position us to support further strategic growth in the current market environment.

Approximately $632.5 million of our consolidated debt balance carrying value is owed by CCLP, serviced by CCLP's existing cash balances and cash provided by CCLP's operations (less its capital expenditures), and $343.5 million of which is secured by certain assets of CCLP. The following table provides condensed consolidating balance sheet information reflecting our net assets and CCLP's net assets that service and secure our and CCLP's respective capital structures.

	June 30, 2018
Condensed Consolidating Balance Sheet	TETRA		CCLP		Eliminations			Consolidated
	(In Thousands)
Cash, excluding restricted cash	$	18,787	$	51,370	$	—		$	70,157
Affiliate receivables	2,670		—		(2,670		)	—
Other current assets	205,992		134,097		—			340,089
Property, plant and equipment, net	213,417		619,661		—			833,078
Other assets, including investment in CCLP	44,468		34,385		57,442			136,295
Total assets	$	485,334	$	839,513	$	54,772		$	1,379,619
Affiliate payables	$	—	$	2,670	$	(2,670	)	$	—
Other current liabilities	89,613		77,569		—			167,182
Long-term debt, net	178,247		632,492		—			810,739
CCLP Series A Preferred Units	—		52,200		(6,556		)	45,644
Warrants liability	13,403		—		—			13,403
Other non-current liabilities	30,113		1,476		—			31,589
Total equity	173,958		73,106		63,998			311,062
Total liabilities and equity	$	485,334	$	839,513	$	54,772		$	1,379,619

Consolidated cash used by operating activities for the six months ended June 30, 2018 was $12.1 million compared to $0.6 million for the six months ended June 30, 2017, an increase of $11.6 million, despite improved operating profitability, primarily due to cash utilized due to timing of payments of accounts payable. Consolidated capital expenditures, net of sales proceeds, were $67.1 million during the six months ended June 30, 2018, and included $47.3 million of capital expenditures by our Compression Division, primarily for growth capital expenditures. Corresponding prior year period consolidated capital expenditures, net of sales proceeds, were $16.3 million, including $11.5 million by our Compression Division. Although our capital expenditure levels are expected to continue to be increased going forward, we defer or reduce capital expenditure projects where possible in order to conserve cash. Key objectives associated with our capital structure (excluding the capital structure of CCLP) include the ongoing management of amounts outstanding and available under our bank revolving credit facility and repayment of our 11% Senior Note. CCLP also continues to carefully monitor its 2018 capital expenditure program

30

in order to conserve its cash. During the first six months of 2018, we received $5.9 million from CCLP as our share of CCLP common unit and general partner distributions. 

Critical Accounting Policies

In preparing our consolidated financial statements, we make assumptions, estimates, and judgments that affect the amounts reported. We base these estimates on historical experience, available information, and various other assumptions that we believe are reasonable.We periodically evaluate these estimates and judgments, including those related to potential impairments of long-lived assets (including goodwill), the collectability of accounts receivable, the current cost of future asset retirement obligations, and the allocation of acquisition purchase price. The fair values of portions of our total assets and liabilities are measured using significant unobservable inputs. The combination of these factors forms the basis for judgments made about the carrying values of assets and liabilities that are not readily apparent from other sources. These judgments and estimates may change as new events occur, as new information is acquired, and as changes in our operating environments are encountered. Actual results are likely to differ from our current estimates, and those differences may be material.

Acquisition Purchase Price Allocations

We account for acquisitions of businesses using the purchase method, which requires the allocation of the purchase price based on the fair values of the assets and liabilities acquired. We estimate the fair values of the assets and liabilities acquired using accepted valuation methods, and, in many cases, such estimates are based on our judgments as to the future operating cash flows expected to be generated from the acquired assets throughout their estimated useful lives.Following the February 28, 2018 acquisition of SwiftWater, we have accounted for the various assets (including intangible assets) and liabilities acquired based on our estimate of their fair values. Goodwill represents the excess of acquisition purchase price over the estimated fair values of the net assets acquired. Our estimates and judgments of the fair value of acquired businesses are imprecise, and the use of inaccurate fair value estimates could result in the improper allocation of the acquisition purchase price to acquired assets and liabilities, which could result in asset impairments,therecording of previously unrecorded liabilities, and other financial statement adjustments. The difficulty in estimating the fair values of acquired assets and liabilities is increased during periods of economic uncertainty.

31

Results of Operations

Three months ended June 30, 2018 compared with three months ended June 30, 2017.

Consolidated Comparisons

	Three Months Ended   June 30,						Period to Period Change
	2018			2017			2018 vs 2017			% Change
	(In Thousands, Except Percentages)
Revenues	$	260,072		$	179,931		$	80,141		44.5	%
Gross profit	47,801			29,535			18,266			61.8	%
Gross profit as a percentage of revenue	18.4		%	16.4		%
General and administrative expense	33,617			29,460			4,157			14.1	%
General and administrative expense as a percentage of revenue	12.9		%	16.4		%
Interest expense, net	18,379			14,328			4,051			28.3	%
Warrants fair value adjustment (income) expense	2,195			(5,545		)	7,740
CCLP Series A Preferred Units fair value adjustment (income) expense	(512		)	(4,834		)	4,322
Other (income) expense, net	3,808			775			3,033
Loss before taxes and discontinued operations	(9,686		)	(4,649		)	(5,037		)	(108.3	)%
Loss before taxes and discontinued operations as a percentage of revenue	(3.7		)%	(2.6		)%
Provision for income taxes	2,446			3,317			(871		)
Loss before discontinued operations	(12,132		)	(7,966		)	(4,166		)
Discontinued operations:
Loss from discontinued operations, net of taxes	(21		)	(6,653		)	6,632
Net loss	(12,153		)	(14,619		)	2,466
Loss attributable to noncontrolling interest	6,188			3,628			2,560
Net loss attributable to TETRA stockholders	$	(5,965	)	$	(10,991	)	$	5,026

Consolidated revenues during the current year quarter increased compared to the prior year quarter primarily due to a $52.6 million increase in Water & Flowback Services Division revenues. The increase in Water & Flowback Services Division revenues was primarily driven by increased activity in certain domestic and international markets and the February 28, 2018 acquisition of SwiftWater. Our Compression Division reported increased revenues of $24.6 million, primarily due to increased compressor equipment sales activity. See Divisional Comparisons section below for additional discussion.

Consolidated gross profit increased compared to the prior year quarter primarily due to the increased revenues of our Water & Flowback Services Division and Compression Division. Despite the improvement in the activity levels of certain of our businesses, the impact of pricing pressures continues to impact profitability in certain markets. Operating expenses reflect the increase in consolidated revenues, although we remain aggressive in managing operating costs and minimizing increased headcount, despite the increased operations.

Consolidated general and administrative expenses increased during the second quarter of 2018 compared to the prior year quarter, primarily due to increased salary and employee expenses of $1.7 million, increased insurance and other general expenses of $1.4 million, as well as increased professional services fees of $0.9 million. Increased general and administrative expenses were driven primarily by our Compression and Water & Flowback Services Divisions. Due to the increased consolidated revenues discussed above, general and administrative expense as a percentage of revenues decreased compared to the prior year quarter.

Consolidated interest expense, net, increased during the second quarter of 2018 compared to the prior year quarter, primarily due to Compression Division interest expense. Compression Division interest expense increased due to the higher interest rate on the CCLP Senior Secured Notes, a portion of the proceeds of which were used to repay the balance outstanding under the CCLP Credit Agreement, and is expected to remain increased compared

32

to prior year periods. Interest expense during the 2018 and 2017 periods includes $0.9 million and $1.2 million, respectively, of finance cost amortization.

The Warrants are accounted for as a derivative liability in accordance with Accounting Standards Codification ("ASC") 815 and therefore they are classified as a long-term liability on our consolidated balance sheet at their fair value. Increases (or decreases) in the fair value of the Warrants are generally associated with increases (or decreases) in the trading price of our common stock, resulting in adjustments to earnings for the associated valuation losses (gains), and resulting in future volatility of our earnings during the period the Warrants are outstanding.

The CCLP Preferred Units may be settled using a variable number of CCLP common units, and therefore the fair value of the CCLP Preferred Units is classified as a long-term liability on our consolidated balance sheet in accordance with ASC 480. Because the CCLP Preferred Units are convertible into CCLP common units at the option of the holder, the fair value of the CCLP Preferred Units will generally increase or decrease with the trading price of the CCLP common units, and this increase (decrease) in CCLP Preferred Unit fair value will be charged (credited) to earnings, as appropriate, resulting in future volatility of our earnings during the period the CCLP Preferred Units are outstanding.

Consolidated other (income) expense, net, was $3.8 million of other expense during the current year quarter compared to $0.8 million of other expense during the prior year quarter, primarily due to $4.3 million of increased expense associated with the remeasurement of the contingent purchase price consideration for SwiftWater. This increase was offset by decreased other bank fees of $0.3 million and increased miscellaneous income of $0.4 million.

Our consolidated provision for income taxes during the second quarter of 2018 is primarily attributable to taxes in certain foreign jurisdictions and Texas gross margin taxes. Our consolidated effective tax rate for the three month period ended June 30, 2018 of negative 25.3% was primarily the result of losses generated in entities for which no related tax benefit has been recorded. The losses generated by these entities do not result in tax benefits due to offsetting valuation allowances being recorded against the related net deferred tax assets. We establish a valuation allowance to reduce the deferred tax assets when it is more likely than not that some portion or all of the deferred tax assets will not be realized. Included in our deferred tax assets are net operating loss carryforwards and tax credits that are available to offset future income tax liabilities in the U.S. as well as in certain foreign jurisdictions.

The Tax Cuts and Jobs Act (the “Act”) was enacted on December 22, 2017. At June 30, 2018 and December 31, 2017, we had not completed our accounting for the tax effects of enactment of the Act; however, in certain cases, as described below, we made reasonable estimates of the effects and recorded provisional amounts. We will continue to make and refine our calculations as additional analysis is completed. The accounting for the tax effects of the Act will be completed in 2018 as provided by the U.S. Securities and Exchange Commission’s SAB No. 118, Income Tax Accounting Implications of the Tax Cuts and Jobs Act. We recognized an income tax expense of $54.1 million in the fourth quarter of 2017 associated with the impact of the Act, which was fully offset by a decrease in the valuation allowance previously recorded on our net deferred tax assets. As such, the Act resulted in no net tax expense in the fourth quarter of 2017. We have considered in our estimated annual effective tax rate for 2018 the impact of the statutory changes enacted by the Act, including reasonable estimates of those provisions effective for the 2018 tax year. Our estimate on Global Intangible Low Taxed Income (“GILTI”), Foreign Derived Intangible Income (“FDII”), Base Erosion and Anti-Abuse Tax (“BEAT”), and IRC Section 163(j) interest limitation do not impact our effective tax rate for the three months ended June 30, 2018.

33

Divisional Comparisons

Completion Fluids & Products Division

	Three Months Ended   June 30,						Period to Period Change
	2018			2017			2018 vs 2017			% Change
	(In Thousands, Except Percentages)
Revenues	$	76,556		$	73,995		$	2,561		3.5	%
Gross profit	14,396			22,358			(7,962		)	(35.6	)%
Gross profit as a percentage of revenue	18.8		%	30.2		%
General and administrative expense	4,462			5,247			(785		)	(15.0	)%
General and administrative expense as a percentage of revenue	5.8		%	7.1		%
Interest (income) expense, net	(131		)	27			(158		)
Other (income) expense, net	84			468			(384		)
Income before taxes	$	9,981		$	16,616		$	(6,635	)	(39.9	)%
Income before taxes as a percentage of revenue	13.0		%	22.5		%

The increase in Completion Fluids & Products Division revenues during the current year quarter compared to the prior year quarter was primarily due to $5.0 million of increased product sales revenue, attributed to increased manufactured product sales revenue. This increase more than offset a decrease in clear brine fluids ("CBF") and associated product sales revenues in the U.S. Gulf of Mexico as a result of a TETRA CS Neptunecompletion fluid project that was completed during 2017. Service revenuesdecreased$2.4 million primarily due to a reduction in completion services activity associated with the 2017 TETRA CS Neptunecompletion fluid project.

Completion Fluids & Products Division gross profit during the current year quarter decreased compared to the prior year quarter primarily due to the decreased revenues and profitability associated with the mix of CBF products and services, including the prior year impact of the TETRA CS Neptune completion fluid project discussed above. Completion Fluids & Products Division profitability in future periods will continue to be affected by the mix of its products and services, including the timing of TETRA CS Neptunecompletion fluid projects.

The Completion Fluids & Products Division reported a decrease in pretax earnings during the current year quarter compared to the prior year quarter primarily due to decreased gross profit discussed above. Completion Fluids & Products Division administrative cost levels decreased compared to the prior year quarter, as $0.7 million of decreased salary and employee related expenses and $0.3 million of decreased bad debt expense were offset by $0.1 million of increased legal and professional fees and $0.1 million of increased general expenses. The Completion Fluids & Products Division continues to review opportunities to further reduce its administrative costs. Other expense decreased primarily due to $0.2 million of increased miscellaneous income and increased foreign currency gains.

Water & Flowback Services Division

	Three Months Ended   June 30,						Period to Period Change
	2018			2017			2018 vs 2017		% Change
	(In Thousands, Except Percentages)
Revenues	$	83,646		$	31,086		$	52,560	169.1	%
Gross profit (loss)	18,631			(245		)	18,876
Gross profit as a percentage of revenue	22.3		%	(0.8		)%
General and administrative expense	6,444			3,941			2,503		63.5	%
General and administrative expense as a percentage of revenue	7.7		%	12.7		%
Interest (income) expense, net	(1		)	(125		)	124
Other (income) expense, net	3,877			(141		)	4,018
Income (loss) before taxes	$	8,311		$	(3,920	)	$	12,231
Income (loss) before taxes as a percentage of revenue	9.9		%	(12.6		)%

34

Water & Flowback Services Division revenues increased during the current year quarter compared to the prior year quarter, primarily due to increased water management services. Water management and flowback services activity increased$52.7 million resulting from the impact of increased demand, reflecting the growth in domestic onshore rig count. Approximately $28.6 million of the water management increase was generated from the operations of SwiftWater, which was acquired on February 28, 2018.

The Water & Flowback Services Division reflected increased gross profit during the current year quarter compared to the prior year quarter, due to the increase in revenues and improving customer pricing levels. However, customer pricing continues to be challenging due to excess availability of equipment in certain markets. The Water & Flowback Services Division continues to monitor its cost structure, minimizing increased costs despite increasing activity levels, and looking to capture additional synergies following the SwiftWater acquisition.

The Water & Flowback Services Division reported pretax income during the current year quarter compared to a pretax loss during the prior year quarter, primarily due to the improvement in gross profit described above. General and administrative expenses levels increased compared to the prior year quarter, primarily due to the acquisition of SwiftWater, increased salary and employee related expenses of $2.0 million, increased professional fees of $0.3 million, and increased insurance and other general expenses of $0.1 million. Other (income) expense increased primarily due to $4.3 million of increased expense associated with the remeasurement of the contingent purchase price consideration for SwiftWater offset by increased foreign currency gains of $0.3 million.

Compression Division

	Three Months Ended   June 30,						Period to Period Change
	2018			2017			2018 vs 2017			% Change
	(In Thousands, Except Percentages)
Revenues	$	99,924		$	75,312		$	24,612		32.7	%
Gross profit	14,933			7,533			7,400			98.2	%
Gross profit as a percentage of revenue	14.9		%	10.0		%
General and administrative expense	10,841			8,222			2,619			31.9	%
General and administrative expense as a percentage of revenue	10.8		%	10.9		%
Interest expense, net	13,634			10,184			3,450
CCLP Series A Preferred fair value adjustment income	(512		)	(4,834		)	4,322
Other (income) expense, net	(375		)	141			(516		)
Loss before taxes	$	(8,655	)	$	(6,180	)	$	(2,475	)	(40.0	)%
Loss before taxes as a percentage of revenue	(8.7		)%	(8.2		)%

Compression Division revenues increased during the current year quarter compared to the prior year quarter, primarily due to a $16.7 millionincrease in product sales revenues, due to a higher number of new compressor equipment sales compared to the prior year quarter. Demand for new compressor equipment continues to improve, and the current new equipment sales backlog has increased significantly compared to the prior year quarter. In addition, current year revenues reflect a $7.9 millionincrease in service revenues from compression and aftermarket services operations. This increase in service revenues was primarily due to increasing demand for compression services, as reflected by increased compressor fleet utilization rates. Overall utilization of the Compression Division's compressor fleet has improved sequentially for seven consecutive quarterly periods, led by increased utilization of the high- and medium-horsepower fleet.

Compression Division gross profit increased during the current year quarter compared to the prior year quarter due to increased revenues discussed above. Higher compressor fleet utilization rates have led to increases in customer contract pricing.

The Compression Division recorded an increased pretax loss during the current year quarter compared to the prior year quarter despite increased gross profit discussed above. Interest expense increased compared to the prior year period, due to the higher interest rate on the CCLP Senior Secured Notes, which were issued in March 2018, compared to the interest rate on the previous CCLP Credit Agreement. Increased interest expense is expected to continue compared to the prior year periods. General and administrative expense levels increased

35

compared to the prior year quarter, due to increased salary and employee-related expenses, including equity compensation, of $1.6 million, increased other general expenses of $0.8 million and decreased bad debt expense of $0.1 million. Series A fair value adjustment resulted in $4.3 million decreased credit to earnings in the current year quarter compared to the prior year period. Other (income) expense, net, reflected income primarily due to increased foreign currency gains.

Corporate Overhead

	Three Months Ended   June 30,						Period to Period Change
	2018			2017			2018 vs 2017			% Change
	(In Thousands, Except Percentages)
Gross profit (loss) (depreciation expense)	$	(164	)	$	(118	)	$	(46	)	(39.0	)%
General and administrative expense	11,871			12,051			(180		)	(1.5	)%
Interest (income) expense, net	4,877			4,240			637
Warrants fair value adjustment (income)/expense	2,195			(5,545		)	7,740
Other (income) expense, net	220			305			(85		)
Loss before taxes	$	(19,327	)	$	(11,169	)	$	(8,158	)	(73.0	)%

Corporate Overhead pretax loss increased during the current year quarter compared to the prior year quarter, primarily due to the Warrants fair value adjustment. The fair value of the outstanding Warrants liability resulted in a $2.2 million charge to earnings during 2018 compared to a $5.5 million credit to earnings in the prior year quarter. In addition, interest expense increased due to increased borrowings. Corporate general and administrative expense decreased due to $1.2 million of decreased salary, incentives and employee related expenses, which was partially offset by $0.5 million of increased professional service fees, $0.4 million of increased other general expenses, and $0.1 million of increased consulting marketing fees.

36

Results of Operations

Six months endedJune 30, 2018 compared with six months ended June 30, 2017.

Consolidated Comparisons

	Six Months Ended June 30,						Period to Period Change
	2018			2017			2018 vs 2017			% Change
	(In Thousands, Except Percentages)
Revenues	$	459,453		$	339,340		$	120,113		35.4	%
Gross profit	75,784			49,189			26,595			54.1	%
Gross profit as a percentage of revenue	16.5		%	14.5		%
General and administrative expense	64,420			56,211			8,209			14.6	%
General and administrative expense as a percentage of revenue	14.0		%	16.6		%
Interest expense, net	33,352			28,095			5,257			18.7	%
Warrants fair value adjustment (income) expense	201			(11,521		)	11,722
CCLP Series A Preferred Units fair value adjustment (income) expense	846			(3,203		)	4,049
Litigation arbitration award income	—			(12,816		)	12,816
Other (income) expense, net	6,584			1,236			5,348
Loss before taxes and discontinued operations	(29,619		)	(8,813		)	(20,806		)	(236.1	)%
Loss before taxes and discontinued operations as a percentage of revenue	(6.4		)%	(2.6		)%
Provision for income taxes	3,570			3,398			172
Loss before discontinued operations	(33,189		)	(12,211		)	(20,978		)
Discontinued operations:
Loss from discontinued operations (including 2018 loss on disposal of $33.8 million), net of taxes	(41,727		)	(13,660		)	(28,067		)
Net loss	(74,916		)	(25,871		)	(49,045		)
Loss attributable to noncontrolling interest	15,303			12,417			2,886
Net loss attributable to TETRA stockholders	$	(59,613	)	$	(13,454	)	$	(46,159	)

Consolidated revenuesfor 2018increased compared to the prior year period, primarily due to increased Water & Flowback Services Division revenues, which increased by $75.5 million. The increase in Water & Flowback Services Division revenues was primarily driven by increased activity in certain domestic and international markets and the February 28, 2018 acquisition of SwiftWater. Our Compression Division reported increased revenues of $44.5 million, primarily due to increased compressor equipment sales activity. See Divisional Comparisons section below for additional discussion.

Consolidated gross profit increased during the current year period compared to the prior year period primarily due to the increased revenues of our Water & Flowback Services Division and Compression Division. Despite the improvement in activity levels of certain of our businesses, the impact of pricing pressures continues to challenge profitability in certain markets. Operating expenses reflect the increase in consolidated revenues, although we remain aggressive in managing operating costs and minimizing increased headcount, despite the increased operations.

Consolidated general and administrative expenses increased during the current year periodcompared to the prior year period, primarily due to $3.1 million of increased professional services fees, $2.7 million of increased salary related expenses and $2.3 million of insurance and other general expenses. Increased general and administrative expenses were driven primarily by our Compression and Water & Flowback Services Divisions. Due to the increased consolidated revenues discussed above, general and administrative expense as a percentage of revenues decreased compared to the prior year period.

37

Consolidated interest expense, net, increased in the current year period primarily due to Compression Division interest expense. Compression Division interest expense increased due to the higher interest rate on the CCLP Senior Secured Notes, a portion of the proceeds of which were used to repay the balance outstanding under the CCLP Credit Agreement, and is expected to remain increased compared to prior year periods. Interest expense during 2018 and 2017 includes $2.1 million and $2.3 million, respectively, of finance cost amortization.

The Warrants are accounted for as a derivative liability in accordance with ASC 815 and therefore they are classified as a long-term liability on our consolidated balance sheet at their fair value. Increases (or decreases) in the fair value of the Warrants are generally associated with increases (or decreases) in the trading price of our common stock, resulting in adjustments to earnings for the associated valuation losses (gains), and resulting in future volatility of our earnings during the period the Warrants are outstanding.

The CCLP Preferred Units may be settled using a variable number of CCLP common units, and therefore the fair value of the CCLP Preferred Units is classified as a long-term liability on our consolidated balance sheet in accordance with ASC 480. Because the CCLP Preferred Units are convertible into CCLP common units at the option of the holder, the fair value of the CCLP Preferred Units will generally increase or decrease with the trading price of the CCLP common units, and this increase (decrease) in CCLP Preferred Unit fair value will be charged (credited) to earnings, as appropriate, resulting in future volatility of our earnings during the period the CCLP Preferred Units are outstanding.

In January 2017, our Completion Fluids & Products Division collected $12.8 million from a legal arbitration award, resulting in a credit to earnings. See Commitments and Contingencies - Litigation section below for additional discussion.

Consolidated other (income) expense, net, was $6.6 million of expense during the current year period compared to $1.2 million of expense during the prior year period, primarily due to $4.3 million of increased expense associated with the remeasurement of the contingent purchase price consideration for SwiftWater and

$3.5 million of increased expense related to the unamortized deferred financing costs charged to earnings as a result of the termination of the CCLP Credit Agreement. Partially offsetting these increases in expense were $1.4 million of increased foreign currency gains, $0.6 million of miscellaneous income, and $0.5 million of decreased other bank fees.

Our consolidated provision for income taxes during the first six months of 2018 is primarily attributable to taxes in certain foreign jurisdictions and Texas gross margin taxes. Our consolidated effective tax rate for the six month period ended June 30, 2018 of negative 12.1% was primarily the result of losses generated in entities for which no related tax benefit has been recorded. The losses generated by these entities do not result in tax benefits due to offsetting valuation allowances being recorded against the related net deferred tax assets. We establish a valuation allowance to reduce the deferred tax assets when it is more likely than not that some portion or all of the deferred tax assets will not be realized. Included in our deferred tax assets are net operating loss carryforwards and tax credits that are available to offset future income tax liabilities in the U.S. as well as in certain foreign jurisdictions.

The Tax Cuts and Jobs Act (the “Act”) was enacted on December 22, 2017. At June 30, 2018 and December 31, 2017, we had not completed our accounting for the tax effects of enactment of the Act; however, in certain cases, as described below, we made reasonable estimates of the effects and recorded provisional amounts. We will continue to make and refine our calculations as additional analysis is completed. The accounting for the tax effects of the Act will be completed in 2018 as provided by the U.S. Securities and Exchange Commission’s SAB No. 118, Income Tax Accounting Implications of the Tax Cuts and Jobs Act. We recognized an income tax expense of $54.1 million in the fourth quarter of 2017 associated with the impact of the Act, which was fully offset by a decrease in the valuation allowance previously recorded on our net deferred tax assets. As such, the Act resulted in no net tax expense in the fourth quarter of 2017. We have considered in our estimated annual effective tax rate for 2018 the impact of the statutory changes enacted by the Act, including reasonable estimates of those provisions effective for the 2018 tax year. Our estimate on Global Intangible Low Taxed Income (“GILTI”), Foreign Derived Intangible Income (“FDII”), Base Erosion and Anti-Abuse Tax (“BEAT”), and IRC Section 163(j) interest limitation do not impact our effective tax rate for the six months ended June 30, 2018.

38

Divisional Comparisons

Completion Fluids & Products Division

	Six Months Ended June 30,						Period to Period Change
	2018			2017			2018 vs 2017			% Change
	(In Thousands, Except Percentages)
Revenues	$	129,660		$	130,223		$	(563	)	(0.4	)%
Gross profit	21,082			33,688			(12,606		)	(37.4	)%
Gross profit as a percentage of revenue	16.3		%	25.9		%
General and administrative expense	9,102			9,931			(829		)	(8.3	)%
General and administrative expense as a percentage of revenue	7.0		%	7.6		%
Interest (income) expense, net	(365		)	40			(405		)
Litigation arbitration award income	—			(12,816		)	12,816
Other (income) expense, net	(85		)	445			(530		)
Income before taxes	$	12,430		$	36,088		$	(23,658	)	(65.6	)%
Income before taxes as a percentage of revenue	9.6		%	27.7		%

The decrease in Completion Fluids & Products Division revenues during the current year period compared to the prior year period was primarily due to $4.4 million of decreased service revenues, primarily due to a reduction in completion services activity associated with a 2017 TETRA CS Neptunecompletion fluid project. This decrease was offset by $3.8 million of increased product sales revenue, attributed to increased manufactured products sales, which were partially offset by reduced clear brine fluids ("CBF") and associated product sales revenues in the U.S. Gulf of Mexico. This decrease in CBF product sales was primarily due to the completion of the TETRA CS Neptune project during the prior year.

Completion Fluids & Products Division gross profit during the current year period decreased significantly compared to the prior year period primarily due to the profitability associated with the mix of CBF products and services, particularly for offshore completion fluids products. Completion Fluids & Products Division profitability in future periods will continue to be affected by the mix of its products and services, including the timing of TETRA CS Neptunecompletion fluid projects.

The Completion Fluids & Products Division reported a significant decrease in pretax earnings during the current year period compared to the prior year period due to the reduction in gross profit discussed above and due to the collection of an arbitration award of $12.8 million during January 2017 that was credited to earnings. Completion Fluids & Products Division administrative cost levels decreased compared to the prior year period, as $1.0 million of decreased salary and employee related expenses, $0.2 million of decreased bad debt expense, and $0.1 million of decreased general expenses were partially offset by $0.3 million of increased legal and professional fees. The Completion Fluids & Products Division continues to review opportunities to further reduce its administrative costs.

39

Water & Flowback Services Division

	Six Months Ended June 30,						Period to Period Change
	2018			2017			2018 vs 2017		% Change
	(In Thousands, Except Percentages)
Revenues	$	144,721		$	69,265		$	75,456	108.9	%
Gross profit	30,035			2,003			28,032
Gross profit as a percentage of revenue	20.8		%	2.9		%
General and administrative expense	11,722			7,682			4,040		52.6	%
General and administrative expense as a percentage of revenue	8.1		%	11.1		%
Interest (income) expense, net	(16		)	(246		)	230
Other (income) expense, net	3,470			(247		)	3,717
Income (loss) before taxes	$	14,859		$	(5,186	)	$	20,045	386.5	%
Income (loss) before taxes as a percentage of revenue	10.3		%	(7.5		)%

Water & Flowback Services Division revenues increased during the current year period compared to the prior year period primarily due to increased water management services activity. Water management and flowback services revenues increased $81.0 million during the current year period compared to the prior year period resulting from the impact of increased demand, reflecting the growth in the domestic onshore rig count. Approximately $36.6 million of the water management increase was generated from the operations of SwiftWater, which was acquired on February 28, 2018. Product sales revenue decreased by $5.6 million, due to an international equipment sale in the prior period.

The Water & Flowback Services Division reflected increased gross profit during the current year period compared to the prior year period, due to the increase in revenues and improving customer pricing levels. However, customer pricing continues to be challenging due to excess availability of equipment in certain markets. The Water & Flowback Services Division continues to monitor its cost structure, minimizing increased costs despite increasing activity levels, and looking to capture additional synergies following the SwiftWater acquisition.

The Water & Flowback Services Division reported pretax income compared to a pretax loss during the prior year period, primarily due to the improvement in gross profit described above. General and administrative expenses increased primarily due to the acquired SwiftWater operations, with increased wage and benefit related expenses of $3.3 million, increased professional fees of $0.3 million, and increased general expenses of $0.3 million. Other expense, net, was recorded during the current year period primarily due to $4.3 million of increased expense associated with the remeasurement of the contingent purchase price consideration for SwiftWater offset by increased foreign currency gains of $0.5 million.

Compression Division

	Six Months Ended June 30,						Period to Period Change
	2018			2017			2018 vs 2017			% Change
	(In Thousands, Except Percentages)
Revenues	$	185,346		$	140,871		$	44,475		31.6	%
Gross profit	24,973			13,698			11,275			82.3	%
Gross profit as a percentage of revenue	13.5		%	9.7		%
General and administrative expense	19,127			16,991			2,136			12.6	%
General and administrative expense as a percentage of revenue	10.3		%	12.1		%
Interest expense, net	24,848			20,287			4,561
CCLP Series A Preferred fair value adjustment	846			(3,201		)	4,047
Other (income) expense, net	2,825			134			2,691
Income (loss) before taxes	$	(22,673	)	$	(20,513	)	$	(2,160	)	(10.5	)%
Income (loss) before taxes as a percentage of revenue	(12.2		)%	(14.6		)%

40

Compression Division revenues increased during the current year period compared to the prior year period, primarily due to a $30.7 millionincrease in product sales revenues, due to a higher number of new compressor equipment sales compared to the prior year period. Demand for new compressor equipment continues to improve, and the current equipment sales backlog has increased significantly compared to the prior year period. In addition, current year revenues reflect a $13.8 millionincrease in service revenues from compression and aftermarket services operations. This increase in service revenues was primarily due to increasing demand for compression services, as reflected by increased compressor fleet utilization rates. Overall utilization of the Compression Division's compressor fleet has improved sequentially for seven consecutive quarterly periods, led by increased utilization of the high- and medium-horsepower fleet.

Compression Division gross profit increased during the current year period compared to the prior year due to increased revenues discussed above. The increased compressor fleet utilization rates have led to increases in customer contract pricing.

The Compression Division recorded an increased pretax loss despite increased gross profit discussed above. Interest expense increased compared to the prior year period, due to the higher interest rate from the CCLP Senior Secured Notes, which were issued in March 2018, compared to the previous CCLP Credit Agreement. Increased interest expense is expected to continue compared to the prior year periods. In addition, other (income) expense, net, reflected an increased expense primarily due to $3.5 million of unamortized deferred financing costs charged to earnings as a result of the termination of the CCLP Credit Agreement. In addition, the Series A Preferred fair value adjustment resulted in a charge to earnings during the current year period compared to a credit to earnings in the prior year period. General and administrative expense levels increased compared to the prior year period, due to increased salary and employee-related expenses, including equity compensation, of $1.0 million, increased other general expenses of $1.1 million, and increased professional fees of $0.3 million, partially offset by $0.2 million of decreased bad debt expense.

Corporate Overhead

	Six Months Ended June 30,						Period to Period Change
	2018			2017			2018 vs 2017			% Change
	(In Thousands, Except Percentages)
Gross profit (loss) (depreciation expense)	$	(315	)	$	(209	)	$	(106	)	(50.7	)%
General and administrative expense	24,469			21,606			2,863			13.3	%
Interest expense, net	8,884			8,014			870
Warrants fair value adjustment (income)/expense	201			(11,521		)	11,722
Other (income) expense, net	370			733			(363		)
Loss before taxes	$	(34,239	)	$	(19,041	)	$	(15,198	)	(79.8	)%

Corporate Overhead pretax loss increased during the current year period compared to the prior year period, primarily due to the adjustment of the fair value of the outstanding Warrants liability that resulted in a $0.2 million charge to earnings compared to an $11.5 million credit to earnings during the prior year period. Corporate general and administrative expense increased primarily due to $2.2 million of increased professional fees, including $0.9 million of transaction costs, $0.8 million of increased general expenses, and $0.5 million of increased consulting fees. These increases were offset by $0.6 million of decreased salary and employee-related expenses, including equity compensation. In addition, interest expense increased due to increased borrowings. Other expense decreased due to reduced commitment and bank fees.

Liquidity and Capital Resources

We reported an increase in consolidated cash flows used in operating activities during the first six months of 2018 compared to the corresponding prior year period. This increase occurred despite the improved profitability of our operations, due to increased working capital needs largely due to the timing of payments of accounts payable. CCLP used $4.3 million of our consolidated operating cash flows during the six months ended June 30, 2018. We received $5.9 million of cash distributions from CCLP during the six months ended June 30, 2018 compared to $8.4 million during the corresponding prior year period. We believe that the capital structure steps we have taken during the past three years continue to support our ability to meet our financial obligations and fund

41

future growth as needed, despite current uncertain operating and financial markets. We and CCLP are in compliance with all covenants of our respective debt agreements as of June 30, 2018.

Our consolidated sources and uses of cash during the six months ended June 30, 2018 and 2017 are as follows:

	Six months ended June 30,
	2018			2017
	(In Thousands)
Operating activities	$	(12,127	)	$	(561	)
Investing activities	(106,347		)	(16,028		)
Financing activities	165,494			9,508

Because of the level of consolidated debt, we believe it is important to consider our capital structure and CCLP's capital structure separately, as there are no cross default provisions, cross collateralization provisions, or cross guarantees between CCLP's debt and TETRA's debt. (See Financing Activities section below for a discussion of the terms of our and CCLP's respective debt arrangements.) Our consolidated debt outstanding has a carrying value of approximately $810.7 million as of June 30, 2018. However, approximately $632.5 million of this consolidated debt balance is owed by CCLP and is serviced from the existing cash balances and cash flows of CCLP, $343.5 million of which is secured by certain of CCLP's assets. Through our common unit ownership interest in CCLP, which was approximately 37% as of June 30, 2018, and ownership of an approximately 1.6% general partner interest, we receive our share of the distributable cash flows of CCLP through its quarterly cash distributions. Approximately $51.4 million of the $70.2 million of the cash balance reflected on our consolidated balance sheet is owned by CCLP and is not accessible by us. As of June 30, 2018, and subject to compliance with the covenants and other provisions of the agreements that may limit borrowings under our Credit Agreement, we had availability of $132.2 million under our Credit Agreement. Following the issuance of the CCLP Senior Secured Notes, CCLP used a portion of the proceeds to repay the borrowings outstanding under CCLP's bank revolving credit facility, which was then terminated. In June 2018, CCLP entered into the CCLP New Credit Agreement. See CCLP Financing Activities below for further discussion.

Operating Activities

Consolidated cash flowsusedby operating activitiestotaled $12.1 millionduring the first six months of 2018 compared to $0.6 million during the corresponding prior year period, an increaseof $11.6 million. Operating cash flows decreased despite improved operating profitability due to the use of cash for working capital changes, particularly related to the timing of payments of accounts payable. We have taken steps to aggressively manage working capital, including increased collection efforts. We continue to monitor customer credit risk in the current environment and have historically focused on serving larger capitalized oil and gas operators and national oil companies.

Demand for the vast majority of our products and services is driven by oil and gas industry activity, which is impacted by oil and natural gas commodity prices. With the increase in crude oil prices in early 2018, operating plans and capital expenditure levels of many of our oil and natural gas customers have increased, benefiting certain of our operating segments with improved revenues and cash flows. The acquisition of SwiftWater during the six months ended June 30, 2018 is providing additional revenues and operating cash flows and is expected to continue to do so going forward. Domestic onshore rig counts have improved compared to early 2017, and this has resulted in improved cash provided by operating activities of our Water & Flowback Services Division. However, offshore and international rig count levels remain relatively unchanged. The increased capital expenditure activity of our Compression Division customers has resulted in increased demand for compression services and equipment, and increased revenues of our Compression Division. However, oil and natural gas prices are expected to continue to be volatile in the future, and if oil and gas industry activity levels decrease in the future, we expect that our levels of operating cash flows will be negatively affected. During early 2018, and despite increasing activity levels, our goal has been to minimize growth to our operating and administrative headcount and continue to maintain a low cost structure for our businesses.

42

As part of the sale of our Offshore Division in March 2018, Orinoco assumed all liabilities and obligations currently associated with our former Maritech subsidiary, including but not limited to all currently identified and any future identified Maritech decommissioning obligations.

Investing Activities

During the first six months of 2018, the total amount of our net cash utilized for investing activities was $106.3 million. The acquisition of SwiftWater included initial cash purchase consideration of $42.0 million, plus $1.0 million which was subsequently paid in August 2018 as a working capital adjustment. Total cashcapital expenditures during the first six months of 2018 were $67.4 million. Our Completion Fluids & Products Division spent $1.8 million on capital expenditures during the first six months of 2018, the majority of which related to plant and facility additions. Our Water & Flowback Services Division spent $16.0 million on capital expenditures, primarily to add to its water management equipment fleet. Our Compression Division spent $47.4 million, primarily for growth capital expenditure projects to increase its compression fleet.

Generally, a majority of our planned capital expenditures has been related to identified opportunities to grow and expand certain of our existing businesses. However, certain of these planned expenditures have been, and may continue to be, postponed or canceled as we are reviewing all capital expenditure plans carefully in an effort to conserve cash. We currently have no long-term capital expenditure commitments. The deferral of capital projects could affect our ability to compete in the future. Excluding our Compression Division, we expect to spend approximately $45 to $55 million during 2018 on capital expenditures, primarily to expand our water management services equipment fleet. Our Compression Division expects to spend approximately $110 to $120 million on capital expenditures during 2018 to expand its compressor fleet in response to increased demand for compression services. The level of future growth capital expenditures depends on forecasted demand for our products and services. If the forecasted demand for our products and services during 2018 increases or decreases, the amount of planned expenditures on growth and expansion may be adjusted.

Financing Activities 

During the first six months of 2018, the total amount of consolidated cash provided by financing activities was $165.5 million, primarily consisting of the proceeds from the issuance of the CCLP Senior Secured Notes, a portion of which was used to repay the CCLP Credit Agreement and provide additional funding for future capital expenditures, and borrowings under our Credit Agreement that were primarily used to fund the purchase of SwiftWater. To fund future capital and working capital requirements, we may supplement our existing cash balances and cash flow from operating activities with short-term borrowings, long-term borrowings, leases, equity issuances, and other sources of capital. We and CCLP are in compliance with all covenants of our respective credit and debt agreements as of June 30, 2018.

See CCLP Financing Activities below for discussion of the CCLP Preferred Units and CCLP's long-term debt.

Our Long-Term Debt

Our Bank Credit Facility. As of August 9, 2018, TETRA (excluding CCLP) had an outstanding balance on its revolving credit facility (as amended, the "Credit Agreement"), of $90.1 million, andhad $6.8 million in letters of credit against therevolving credit facility, leaving a net availability, subject to compliance with our covenants and other provisions of the Credit Agreement that limit borrowings under the Credit Facility, of $103.1 million. The Credit Agreement, as amended, matures on September 30, 2019 and limits aggregate lender commitments to $200 million. Borrowings generally bear interest at the British Bankers Association LIBOR rate plus 2.50% to 4.25%, depending on one of our financial ratios. We pay a commitment fee ranging from 0.35% to 1.00% on unused portions of the facility. All obligations under the Credit Agreement and the guarantees of such obligations are secured by first-lien security interests in substantially all of our assets and the assets of our subsidiaries other than CCLP and its subsidiaries (limited, in the case of foreign subsidiaries, to 66% of the voting stock or equity interests of first-tier foreign subsidiaries). Such security interests are for the benefit of the lenders under the Credit Agreement as well as the holder of our 11% Senior Note on a pari passu basis. In addition, the Credit Agreement includes limitations on aggregate asset sales, individual acquisitions, and aggregate annual acquisitions, dispositions, and capital expenditures.

43

Our Credit Agreement contains customary covenants and other restrictions, including certain financial ratio covenants based on our levels of debt and interest cost compared to a defined measure of our operating cash flows over a twelve month period. The Credit Agreement requires us to maintain (i) a fixed charge coverage ratio that may not be less than 1.25 to 1 as of the end of any fiscal quarter; and (ii) a consolidated leverage ratio that may not exceed (a) 5.00 to 1 at the end of fiscal quarters ending during the period from and including March 31, 2017 through and including December 31, 2017, (b) 4.75 to 1 at the end of fiscal quarters ending March 31, 2018 and June 30, 2018, (c) 4.50 to 1 at the end of fiscal quarters ending September 30, 2018 and December 31, 2018, and (d) 4.00 to 1 at the end of each of the fiscal quarters thereafter. At June 30, 2018, our consolidated leverage ratio was 2.18 to 1 (compared to a 4.75 to 1 maximum allowed under the Credit Agreement). At June 30, 2018, our fixed charge coverage ratio was 2.87 to 1 (compared to a 1.25 to 1 minimum required under the Credit Agreement). Deterioration of these financial ratios could result in a default by us under the Credit Agreement that, if not remedied, could result in termination of the Credit Agreement and acceleration of any outstanding balances. Any such default could also result in a cross-default under our 11% Senior Note.

CCLP is an unrestricted subsidiary and is not a borrower or a guarantor under our Credit Agreement. Our Credit Agreement includes cross-default provisions relating to any other indebtedness (excluding indebtedness of CCLP) greater than a defined amount. Our Credit Agreement also contains a covenant that restricts us from paying dividends in the event of a default or if such payment would result in an event of default.

Our Senior Notes

Our Senior Note. Our 11% Senior Note is governed by the Note Purchase Agreement dated November 2015, as amended (the "Amended and Restated 11% Senior Note Agreement"), whereby we issued and sold $125.0 million in principal amount of our 11% Senior Note (the "11% Senior Note"). As of August 9, 2018, the aggregate principal amount outstanding of the 11% Senior Note is $125.0 million.

The 11% Senior Note bears interest at a fixed rate of 11.0% and matures on November 5, 2022. Interest on the 11% Senior Note is due quarterly on March 15, June 15, September 15, and December 15 of each year. We may prepay the 11% Senior Note, in whole or in part at a prepayment price equal to (i) prior to November 20, 2018, 100% of the principal amount so prepaid, plus accrued and unpaid interest and a “make-whole” prepayment amount, (ii) during the period commencing on November 20, 2018, and ending on November 19, 2019, 104% of the principal amount so prepaid, plus accrued and unpaid interest, (iii) during the period commencing on November 20, 2019 and ending on November 19, 2020, 102% of the principal amount so prepaid, plus accrued and unpaid interest, (iv) during the period commencing on November 20, 2020, and ending on November 19, 2021, 101% of the principal amount so prepaid, plus accrued and unpaid interest, and (v) on or after November 20, 2021, 100% of the principal amount so prepaid, plus accrued and unpaid interest.

The 11% Senior Note is guaranteed by substantially all of our wholly owned U.S. subsidiaries. The Amended and Restated 11% Senior Note Agreement contains customary covenants that limit our ability and the ability of certain of our restricted subsidiaries to, among other things: incur or guarantee additional indebtedness; incur or create liens; merge or consolidate or sell substantially all of our assets; engage in a different business; enter into transactions with affiliates; and make certain payments. In addition, the Amended and Restated 11% Senior Note Agreement requires us to maintain certain financial ratios, including a maximum leverage ratio (ratio of debt and letters of credit outstanding to a defined measure of earnings). The maximum leverage ratio is further defined in the Amended and Restated 11% Senior Note Agreement. Consolidated net earnings under the Amended and Restated 11% Senior Note Agreement is the aggregate of our net income (or loss) of our consolidated restricted subsidiaries, including cash dividends and distributions (not the return of capital) received from persons other than our consolidated restricted subsidiaries (such as CCLP) and after allowances for taxes for such period determined on a consolidated basis in accordance with U.S. generally accepted accounting principles ("GAAP"), excluding certain items more specifically described therein. CCLP and its subsidiaries are unrestricted subsidiaries and are not borrowers or guarantors under the Amended and Restated 11% Senior Note Agreement.

44

The Amended and Restated 11% Senior Note Agreement includes customary default provisions, as well as cross-default provisions relating to other indebtedness (excluding indebtedness of CCLP) greater than a defined amount. In addition, the Amended and Restated 11% Senior Note Agreement requires a minimum fixed charge coverage ratio at the end of any fiscal quarter of 1.25 to 1 and allows a maximum ratio of consolidated funded indebtedness at the end of any fiscal quarter of a defined measure of earnings ("EBITDA") of (a) 5.00 to 1 as of the end of any fiscal quarter ending during the period commencing March 31, 2017 and ending December 31, 2017, (b) 4.75 to 1 as of the end of any fiscal quarter ending March 31, 2018 and June 30, 2018 and (c) 4.50 to 1 as of the end of any fiscal quarter ending September 30, 2018 and December 31, 2018, and (d) 4.00 to 1 at the end of fiscal quarters ending thereafter. Pursuant to the Amended and Restated 11% Senior Note Agreement, the 11% Senior Note is secured by first-lien security interests in substantially all of our assets and the assets of our subsidiaries other than CCLP and its subsidiaries on a pari passu basis with the lenders under the Credit Agreement. See the above discussion of our Credit Agreement for a description of these security interests. The 11% Senior Note is pari passu in right of payment with all borrowings under the Credit Agreement and ranks at least pari passu in right of payment with all other outstanding indebtedness. We are in compliance with all covenants of the Amended and Restated 11% Senior Note Purchase Agreement as of June 30, 2018. At June 30, 2018, our ratio of consolidated funded indebtedness to EBITDA was 2.18 to 1 (compared to 4.75 to 1 maximum allowed under the Amended and Restated 11% Senior Note Agreement) and our fixed charge coverage ratio was 2.87 to 1 (compared to a 1.25 to 1 minimum required under the Amended and Restated 11% Senior Note Purchase Agreement). CCLP and its subsidiaries are unrestricted subsidiaries and are not borrowers or guarantors under our Amended and Restated 11% Senior Note Purchase Agreement.

CCLP Financing Activities

In March 2018, CCLP issued an aggregate $350.0 million of its CCLP Senior Secured Notes, and the net proceeds of $343.8 million were partially used to repay the remaining outstanding balance of $258.0 million under the CCLP Credit Agreement, which was then terminated. See below for a further discussion of the CCLP Senior Secured Notes. The remaining proceeds are being used to fund CCLP capital expenditures, including the increasing capital expenditures mentioned above that are needed in order to grow and maintain the capacity of CCLP's compressor and equipment fleet, as well as for general partnership needs.

CCLP Preferred Units. On August 8, 2016 and September 20, 2016, CCLP entered into Series A Preferred Unit Purchase Agreements (the “Unit Purchase Agreements”) with certain purchasers with regard to its issuance and sale in two private placements (the "Initial Private Placement" and "Subsequent Private Placement," respectively) of an aggregate of 6,999,126 of CSI Compressco LP Series A Convertible Preferred Units representing limited partner interests in CCLP (the “CCLP Preferred Units”) for a cash purchase price of $11.43 per CCLP Preferred Unit (the “Issue Price”), resulting in total 2016 net proceeds, after deducting certain offering expenses, of approximately $77.3 million. We purchased 874,891 of the CCLP Preferred Units at the aggregate Issue Price of $10.0 million.

In connection with the closing of the Initial Private Placement, CSI Compressco GP Inc (our wholly owned subsidiary) executed the Second Amended and Restated CCLP Partnership Agreement to, among other things, authorize and establish the rights and preferences of the CCLP Preferred Units. The CCLP Preferred Units are a new class of equity security that rank senior to all classes or series of equity securities of CCLP with respect to distribution rights and rights upon liquidation. We and the other holders of CCLP Preferred Units (each, a “CCLP Preferred Unitholder”) receive quarterly distributions, which are paid in kind in additional CCLP Preferred Units, equal to an annual rate of 11.00% of the Issue Price ($1.2573 per unit annualized) of the outstanding CCLP Preferred Units, subject to certain adjustments. The rights of the CCLP Preferred Units include certain anti-dilution adjustments, including adjustments for economic dilution resulting from the issuance of common units in the future below a set price.

A ratable portion of the CCLP Preferred Units has been, and will continue to be, converted into CCLP common units on the eighth day of each month over a period of thirty months that began in March 2017 (each, a “Conversion Date”), subject to certain provisions of the Second Amended and Restated CCLP Partnership Agreement that may delay or accelerate all or a portion of such monthly conversions. On each Conversion Date, a portion of the CCLP Preferred Units will convert into CCLP common units representing limited partner interests in CCLP in an amount equal to, with respect to each CCLP Preferred Unitholder, the number of CCLP Preferred Units held by such CCLP Preferred Unitholder divided by the number of Conversion Dates remaining, subject to adjustment described in the Second Amended and Restated CCLP Partnership Agreement, with the conversion

45

price (the "Conversion Price") determined by the trading prices of the common units over the prior month, among other factors, and as otherwise impacted by the existence of certain conditions related to the CCLP common units. The maximum aggregate number of CCLP common units that could be required to be issued pursuant to the conversion provisions of the CCLP Preferred Units is potentially unlimited; however, CCLP may, at its option, pay cash, or a combination of cash and CCLP common units, to the CCLP Preferred Unitholders instead of issuing CCLP common units on any Conversion Date, subject to certain restrictions as described in the Second Amended and Restated CCLP Partnership Agreement and the CCLP New Credit Agreement (defined below). Including the impact of paid in kind distributions of CCLP Preferred Units and conversions of CCLP Preferred Units into CCLP common units, the total number of CCLP Preferred Units outstanding as of June 30, 2018 was 4,458,803, of which we held 559,975.

Because the CCLP Preferred Units may be settled using a variable number of CCLP common units, the fair value of the CCLP Preferred Units is classified as a long-term liability on our consolidated balance sheet in accordance with ASC 480 "Distinguishing Liabilities and Equity." The fair value of the CCLP Preferred Units as of June 30, 2018 was $45.6 million. Changes in the fair value during each quarterly period, if any, are charged or credited to earnings in the accompanying consolidated statements of operations. Charges or credits to earnings for changes in the fair value of the CCLP Preferred Units, along with the interest expense for the accrual and payment of paid-in-kind distributions associated with the CCLP Preferred Units, are non-cash charges and credits associated with the CCLP Preferred Units.

In addition, the CCLP Unit Purchase Agreements include certain provisions regarding change of control, transfer of CCLP Preferred Units, indemnities, and other matters. The CCLP Unit Purchase Agreements contain customary representations, warranties and covenants of CCLP and the purchasers.

CCLP Bank Credit Facilities. On June 29, 2018, CCLP and two of its wholly owned subsidiaries (collectively the "CCLP Borrowers"), and certain of its wholly owned subsidiaries named therein as guarantors (the "CCLP New Credit Agreement Guarantors"), entered into a Loan and Security Agreement (the "CCLP New Credit Agreement") with the lenders thereto (the "Lenders"), and Bank of America, N.A., in its capacity as administrative agent, collateral agent, letter of credit issuer, and swing line lender. All of the CCLP Borrowers' obligations under the CCLP New Credit Agreement are guaranteed by certain of their existing and future domestic subsidiaries. The CCLP New Credit Agreement includes a maximum credit commitment of $50.0 million available for loans, letters of credit (with a sublimit of $25.0 million) and swingline loans (with a sublimit of $5.0 million). Such maximum credit commitment may be increased by $25.0 million in accordance with the terms and conditions of the CCLP New Credit Agreement.

The CCLP Borrowers may borrow funds under the CCLP New Credit Agreement to pay fees and expenses related to the CCLP New Credit Agreement and for the Borrower's ongoing working capital needs and for general partnership purposes. The revolving loans under the CCLP New Credit Agreement may be voluntarily prepaid, in whole or in part, without premium or penalty, subject to breakage or similar costs. The maturity date of the CCLP New Credit Agreement is June 29, 2023. As of June 30, 2018, no balance was outstanding under the CCLP New Credit Agreement. As of August 8, 2018,CCLP has no balance outstanding under the CCLP New Credit Agreement and $5.7 million letters of credit, leaving availability under the CCLP New Credit Agreement of $44.3 million.

Borrowings under the CCLP New Credit Agreement will bear interest at a rate per annum equal to, at the option of the CCLP Borrowers, either (i) London InterBank Offered Rate (“LIBOR”) (adjusted to reflect any required bank reserves) for an interest period equal to 30, 60, 90, 180 or 360 days (as selected by the CCLP Borrowers, subject to availability and with the consent of the Lenders for 360 days) plus a margin based on average daily excess availability or (ii) a base rate plus a margin based on average daily excess availability; such base rate shall be determined by reference to the highest of (a) the prime rate of interest announced from time to time by Bank of America, N.A., (b) the Federal Funds Rate (as defined in the CCLP New Credit Agreement) rate plus 0.5% per annum and (c) LIBOR (adjusted to reflect any required bank reserves) for a 30-day interest period on such day plus 1.0% per annum. Initially, from June 29, 2018 until the delivery of the financial statements for the fiscal quarter ending December 31, 2018, LIBOR-based loans will have an applicable margin of 2.00% per annum and base-rate loans will have an applicable margin of 1.00% per annum; thereafter, the applicable margin will range between 1.75% and 2.25% per annum for LIBOR-based loans and 0.75% and 1.25% per annum for base-rate loans, according to average daily excess availability when financial statements are delivered. In addition to paying interest on outstanding principal under the CCLP New Credit Agreement, the CCLP Borrowers are required to pay a commitment fee in respect of the unutilized commitments thereunder, initially at the rate of 0.375% per annum until the delivery of the financial statements for the fiscal quarter ending September 30, 2018 and thereafter at the applicable rate ranging from 0.250% to 0.375% per annum, paid quarterly in arrears based on utilization of the

46

commitments under the CCLP New Credit Agreement. The CCLP Borrowers are also required to pay a customary letter of credit fee equal to the applicable margin on revolving credit LIBOR loans and fronting fees.

The CCLP New Credit Agreement contains certain affirmative and negative covenants, including covenants that restrict the ability of the CCLP Borrowers, the CCLP New Credit Agreement Guarantors, and certain of their subsidiaries to take certain actions including, among other things and subject to certain significant exceptions, the incurrence of debt, the granting of liens, the making of investments, entering into transactions with affiliates, the payment of dividends, and the sale of assets. The CCLP New Credit Agreement also contains a requirement that the CCLP Borrowers comply, during certain periods, with a fixed charge coverage ratio of 1.0 to 1.0.

All obligations under the CCLP New Credit Agreement and the guarantees of those obligations are secured, subject to certain exceptions, by a first priority security interest for the benefit of the Lenders in the CCLP Borrowers’ and the CCLP New Credit Agreement Guarantors’ present and future accounts receivable, inventory and related assets, and proceeds of the foregoing (the “CCLP ABL Collateral”).

CCLP Senior Secured Notes. On March 8, 2018, CCLP entered into the Purchase Agreement (the “Purchase Agreement”) with Merrill Lynch, Pierce, Fenner & Smith Incorporated as representative of the initial purchasers listed in Schedule A thereto (collectively, the “Initial Purchasers”), pursuant to which the CCLP Issuers agreed to issue and sell to the Initial Purchasers $350.0 million aggregate principal amount of the CCLP Issuers’ 7.50% Senior Secured First Lien Notes due 2025 (the "CCLP Senior Secured Notes") (the "CCLP Offering") pursuant to an exemption from the registration requirements of the Securities Act of 1933, as amended (the "Securities Act"). As of August 8, 2018, $350.0 million in aggregate principal amount of our 7.50% Senior Secured Notes are outstanding.

The CCLP Issuers closed the Offering on March 22, 2018. The CCLP Senior Secured Notes were issued at par for net proceeds of approximately $343.8 million, after deducting certain financing costs. CCLP used a portion of the net proceeds to repay in full and terminate CCLP's existing bank Credit Agreement and plans to use the remainder for general partnership purposes, including the expansion of its compression fleet. The CCLP Senior Secured Notes are jointly and severally, and fully and unconditionally, guaranteed (the "Guarantees" and, together with the CCLP Senior Secured Notes, the "CCLP Senior Secured Note Securities") on a senior secured basis initially by each of CCLP's domestic restricted subsidiaries (other than CSI Compressco Finance Inc., certain immaterial subsidiaries and certain other excluded domestic subsidiaries) and are secured by a first-priority security interest in substantially all of the CCLP Issuers' and the Guarantors' assets (other than certain excluded assets, including the CCLP ABL Collateral) (the "Collateral") as collateral security for their obligations under the CCLP Senior Secured Notes, subject to certain permitted encumbrances and exceptions. On the closing date, we entered into an indenture (the "Indenture") by and among the Obligors and U.S. Bank National Association, as trustee with respect to the CCLP Senior Secured Note Securities. The CCLP Senior Secured Notes accrue interest at a rate of 7.50% per annum. Interest on the CCLP Senior Secured Notes are payable semi-annually in arrears on April 1 and October 1 of each year, beginning October 1, 2018. The CCLP Senior Secured Notes are scheduled to mature on April 1, 2025. In connection with the CCLP Offering, CCLP incurred total financing costs of $6.7 million related to the CCLP Senior Secured Notes. These costs are deferred, netting against the carrying value of the amount outstanding.

On and after April 1, 2021, CCLP may redeem all or a part of the CCLP Senior Secured Notes, from time to time, at the following redemption prices (expressed as a percentage of principal amount), plus accrued and unpaid interest thereon to, but not including, the applicable redemption date, subject to the right of holders of record on the relevant record date to receive interest due on the relevant interest payment date, if redeemed during the 12-month period beginning on April 1 of the years indicated below:

Date	Price
2021	105.625%
2022	103.750%
2023	101.875%
2024	100.000%

47

In addition, at any time and from time to time before April 1, 2021, CCLP may, at its option, redeem all or a portion of the CCLP Senior Secured Notesat a redemption price equal to 100% of the principal amount thereof plus the Applicable Premium (as defined in the Indenture) with respect to theCCLP Senior Secured Notesplus accrued and unpaid interest, if any, to, but not including, the applicable redemption date, subject to the rights of holders of the CCLP Senior Secured Noteson the relevant record date to receive interest due on the relevant interest payment date.

Prior to April 1, 2021, CCLP may on one or more occasions redeem up to 35% of the principal amount of the CCLP Senior Secured Noteswith an amount of cash not greater than the amount of the net cash proceeds from one or more equity offerings at a redemption price equal to 107.500% of the principal amount of theCCLP Senior Secured Notesto be redeemed, plus accrued and unpaid interest, if any, to, but not including, the date of redemption, subject to the right of holders of record on the relevant record date to receive interest due on the relevant interest payment date, provided that (a) at least 65% of the aggregate principal amount of theCCLP Senior Secured Notes originally issued on the issue date (excluding notes held by CCLP and its subsidiaries) remains outstanding after each such redemption; and (b) the redemption occurs within 180 days after the date of the closing of the equity offering.

If CCLP experiences certain kinds of changes of control, each holder of CCLP Senior Secured Notes will be entitled to require us to repurchase all or any part (equal to $2,000 or an integral multiple of $1,000 in excess of $2,000) of that holder’s CCLP Senior Secured Notes pursuant to an offer on the terms set forth in the Indenture. CCLP will offer to make a cash payment equal to 101% of the aggregate principal amount of the CCLP Senior Secured Notes repurchased plus accrued and unpaid interest, if any, on the CCLP Senior Secured Notes repurchased to the date of repurchase, subject to the rights of holders of the CCLP Senior Secured Notes on the relevant record date to receive interest due on the relevant interest payment date.

The Indenture contains customary covenants restricting CCLP ability and the ability of CCLP restricted subsidiaries to: (i) pay distributions on, purchase or redeem CCLP common units or purchase or redeem any CCLP subordinated debt; (ii) incur or guarantee additional indebtedness or issue certain kinds of preferred equity securities; (iii) create or incur certain liens securing indebtedness; (iv) sell assets, including dispositions of the Collateral; (v) consolidate, merge or transfer all or substantially all of its assets; (vi) enter into transactions with affiliates; and (vii) enter into agreements that restrict distributions or other payments from its restricted subsidiaries to CCLP. These covenants are subject to a number of important limitations and exceptions, including certain provisions permitting CCLP, subject to the satisfaction of certain conditions, to transfer assets to certain of CCLP unrestricted subsidiaries. Moreover, if the CCLP Senior Secured Notes receive an investment grade rating from at least two rating agencies and no default has occurred and is continuing under the Indenture, many of the restrictive covenants in the Indenture will be terminated. The Indenture also contains customary events of default and acceleration provisions relating to such events of default, which provide that upon an event of default under the Indenture, the Trustee or the holders of at least 25% in aggregate principal amount of the then outstanding CCLP Senior Secured Notesmay declare all of theCCLP Senior Secured Notesto be due and payable immediately.

On March 22, 2018, CCLP, the grantors named therein, the Trustee and U.S. Bank National Association, as the collateral trustee (the “Collateral Trustee”), entered into a collateral trust agreement (the “Collateral Trust Agreement”) pursuant to which the Collateral Trustee will receive, hold, administer, maintain, enforce and distribute the proceeds of all of its liens upon the collateral for the benefit of the current and future holders of the CCLP Senior Secured Notesand any future priority lien obligations, if any.

CCLP Senior Notes. The obligations under the CCLP 7.25% Senior Notes (the "CCLP Senior Notes") are jointly and severally and fully and unconditionally, guaranteed on a senior unsecured basis by each of CCLP’s domestic restricted subsidiaries (other than CSI Compressco Finance) that guarantee CCLP’s other indebtedness (the "Guarantors" and together with the Issuers, the "Obligors"). The CCLP Senior Notes and the subsidiary guarantees thereof (together, the "CCLP Senior Note Securities") were issued pursuant to an indenture described below. As of August 8, 2018, $295.9 million in aggregate principal amount of the CCLP Senior Notes are outstanding.

The Obligors issued the CCLP Senior Note Securities pursuant to the Indenture dated as of August 4, 2014 (the "CCLP Senior Note Indenture") by and among the Obligors and U.S. Bank National Association, as trustee (the "Trustee"). The CCLP Senior Notes accrue interest at a rate of 7.25% per annum. Interest on the CCLP Senior Notes is payable semi-annually in arrears on February 15 and August 15 of each year. The CCLP Senior Notes are scheduled to mature on August 15, 2022.

48

The CCLP Senior Note Indenture contains customary covenants restricting CCLP’s ability and the ability of its restricted subsidiaries to: (i) pay dividends and make certain distributions, investments and other restricted payments; (ii) incur additional indebtedness or issue certain preferred shares; (iii) create certain liens; (iv) sell assets; (v) merge, consolidate, sell or otherwise dispose of all or substantially all of its assets; (vi) enter into transactions with affiliates; and (vii) designate its subsidiaries as unrestricted subsidiaries under the CCLP Senior Note Indenture. The CCLP Senior Note Indenture also contains customary events of default and acceleration provisions relating to such events of default, which provide that upon an event of default under the CCLP Senior Note Indenture, the Trustee or the holders of at least 25% in aggregate principal amount of the CCLP Senior Notes then outstanding may declare all amounts owing under the CCLP Senior Notes to be due and payable. CCLP is in compliance with all covenants of the CCLP Senior Note Purchase Agreement as of June 30, 2018.

Other Sources and Uses

In addition to the aforementioned revolving credit facility, we and CCLP fund our respective short-term liquidity requirements from cash generated by our respective operations, leases, and from short-term vendor financing. Should additional capital be required, we believe that we have the ability to raise such capital through the issuance of additional debt or equity securities. However, instability or volatility in the capital markets at the times we need to access capital may affect the cost of capital and the ability to raise capital for an indeterminable length of time.

TETRA's Credit Agreement, as amended, matures in September 2019, TETRA's 11% Senior Note matures in November 2022, the CCLP Senior Notes mature in August 2022, the CCLP Senior Secured Notes mature in March 2025, and the CCLP New Credit Agreement matures in June 2023. The replacement of these capital sources at similar or more favorable terms is not certain. If it is necessary to issue additional equity to fund our capital needs, additional dilution to our common stockholders will occur.

Although near-term growth plans pursuant to our long-term growth strategy have resumed, they are being reviewed carefully and are subject to our continuing efforts to conserve cash. CCLP has also increased its growth capital expenditure activity in response to increased demand for compression services. CCLP's long-term growth objectives are funded from its available cash, other borrowings, and cash generated from the issuance of common or preferred units.

On March 23, 2016, we filed a universal shelf Registration Statement on Form S-3 with the Securities and Exchange Commission ("SEC"). On April 13, 2016, the Registration Statement on Form S-3 was declared effective by the SEC. Pursuant to this registration statement, we have the ability to sell debt or equity securities in one or more public offerings up to an aggregate public offering price of $164.4 million. This shelf registration statement currently provides us additional flexibility with regard to potential financings that we may undertake when market conditions permit or our financial condition may require.

As part of long-term strategic growth plans, we and CCLP evaluate opportunities to acquire businesses and assets that may require the payment of cash. Such acquisitions may be funded with existing cash balances, funds under credit facilities, or cash generated from the issuance of equity or debt securities.

The Second Amended and Restated Partnership Agreement of CCLP requires that within 45 days after the end of each quarter, CCLP distribute all of its available cash, as defined in the Second Amended and Restated Partnership Agreement, to its common unitholders of record on the applicable record date. During the six months ended June 30, 2018, CCLP distributed $14.9 million in cash, including $9.0 million to its public unitholders. The amount of quarterly distributions is determined based on a variety of factors, including estimates of CCLP's cash needs to fund its future operating, investing, and debt services requirements. There can be no assurance that quarterly distributions from CCLP will increase from this amount per unit, or that there will not be future decreases in the amount of distributions going forward.

Off Balance Sheet Arrangements

As of June 30, 2018, we had no “off balance sheet arrangements” that may have a current or future material effect on our consolidated financial condition or results of operations.

49

Commitments and Contingencies

Litigation

We are named defendants in several lawsuits and respondents in certain governmental proceedings arising in the ordinary course of business. While the outcome of lawsuits or other proceedings against us cannot be predicted with certainty, management does not consider it reasonably possible that a loss resulting from such lawsuits or other proceedings in excess of any amounts accrued has been incurred that is expected to have a material adverse impact on our financial condition, results of operations, or liquidity.

On March 18, 2011, we filed a lawsuit in the Circuit Court of Union County, Arkansas, asserting claims of professional negligence, breach of contract and other claims against the engineering firm we hired for engineering design, equipment, procurement, advisory, testing and startup services for our El Dorado, Arkansas chemical production facility. The engineering firm disputed our claims and promptly filed a motion to compel the matter to arbitration. After a lengthy procedural dispute in Arkansas state court, arbitration proceedings were initiated on November 15, 2013. Ultimately, on December 16, 2016, the arbitration panel ruled in our favor, declared us as the prevailing party, and awarded us a total net amount of $12.8 million. We received full payment of the $12.8 million final award on January 5, 2017.

Other Contingencies

During 2011, in connection with the sale of a significant majority of Maritech's oil and gas producing properties, the buyers of the properties assumed the associated decommissioning liabilities pursuant to the purchase and sale agreements. In March 2018, we closed the Maritech Asset Purchase Agreement with Orinoco that provided for the purchase by Orinoco of the Maritech Properties. Also in March 2018, we finalized the Maritech Equity Purchase Agreement with Orinoco that provided for the purchase by Orinoco of the Maritech Equity Interests. As a result of these transactions, we have effectively exited the businesses of our Offshore Services and Maritech segments and Orinoco assumed all of Maritech's remaining abandonment and decommissioning obligations.

Contractual Obligations

	Payments Due
	Total		2018		2019		2020		2021		2022		Thereafter
	(In Thousands)
Long-term debt - TETRA	$	185,950	$	—	$	60,950	$	—	$	—	$	125,000	$	—
Long-term debt - CCLP	645,930		—		—		—		—		295,930		350,000
Interest on debt - TETRA	62,437		8,056		15,423		13,357		13,357		12,244		—
Interest on debt - CCLP	265,821		23,761		47,522		47,522		47,522		40,431		59,063
Purchase obligations	108,689		4,739		9,450		9,450		9,450		9,450		66,150
Decommissioning and other asset retirement obligations	12,073		—		—		—		—		—		12,073
Operating and capital leases	82,642		8,404		12,022		10,548		8,517		6,358		36,793
Total contractual cash obligations(1)	$	1,363,542	$	44,960	$	145,367	$	80,877	$	78,846	$	489,413	$	524,079

⁽¹⁾  Amounts exclude other long-term liabilities reflected in our Consolidated Balance Sheet that do not have known payment streams. These excluded amounts include approximately$1.2million of liabilities under FASB Codification Topic 740, “Accounting for Uncertainty in Income Taxes,” as we are unable to reasonably estimate the ultimate amount or timing of tax settlements. These excluded amounts also include approximately$45.6 million of liabilities related to the CCLP Series A Convertible Preferred Units. The preferred units are expected to be serviced and satisfied with non-cash paid-in-kind distributions and conversions to CCLP common units. See "Note E – CCLP Series A Convertible Preferred Units," in the Notes to Consolidated Financial Statements for further discussion.

For additional information about our contractual obligations as of December 31, 2017, see "Management's Discussion and Analysis of Financial Condition and Results of Operations" in our Annual Report on Form 10-K for the year ended December 31, 2017.

50

Cautionary Statement for Purposes of Forward-Looking Statements

This Quarterly Report on Form 10-Q contains “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. Forward-looking statements in this Quarterly Report are identifiable by the use of the following words and other similar words: “anticipates", "assumes", “believes,” "budgets", “could,” “estimates,” "expects", "forecasts", "goal", "intends", "may", "might", "plans", "predicts", "projects", "schedules", "seeks", "should", "targets", "will", and "would".

Such forward-looking statements reflect our current views with respect to future events and financial performance and are based on assumptions that we believe to be reasonable, but such forward-looking statements are subject to numerous risks, and uncertainties, including, but not limited to:

• economic and operating conditions that are outside of our control, including the supply, demand, and prices of crude oil and natural gas;

• the levels of competition we encounter;

• the activity levels of our customers;

• our operational performance;

• the availability of raw materials and labor at reasonable prices;

• risks related to acquisitions and our growth strategy;

• our ability to comply with the financial covenants in our debt agreements and the consequences of any failure to comply with such financial covenants;

• the availability of adequate sources of capital to us;

• the effect and results of litigation, regulatory matters, settlements, audits, assessments, and contingencies;

• risks related to our foreign operations;

• information technology risks including the risk from cyberattack, and

• other risks and uncertainties under “Item 1A. Risk Factors” in our Annual Report on Form 10-K for the year ended December 31, 2017, those set forth in Item 1A "Risk Factors" in Part II of this Quarterly Report on Form 10-Q, and as included in our other filings with the U.S. Securities and Exchange Commission (“SEC”), which are available free of charge on the SEC website at www.sec.gov.

The risks and uncertainties referred to above are generally beyond our ability to control and we cannot predict all the risks and uncertainties that could cause our actual results to differ from those indicated by the forward-looking statements. If any of these risks or uncertainties materialize, or if any of the underlying assumptions prove incorrect, actual results may vary from those indicated by the forward-looking statements, and such variances may be material.

All subsequent written and oral forward-looking statements made by or attributable to us or to persons acting on our behalf are expressly qualified in their entirety by reference to these risks and uncertainties. You should not place undue reliance on forward-looking statements. Each forward-looking statement speaks only as of the date of the particular statement, and we undertake no obligation to update or revise any forward-looking statements we may make, except as may be required by law.

Item 3. Quantitative and Qualitative Disclosures about Market Risk.

Market risk is the risk of loss arising from adverse changes in market rates and prices. Fora discussion of our indirect exposure to fluctuatingcommodityprices, please read “Risk Factors —CertainBusinessRisks” in our Annual Report on Form 10-K filed with the SEC on March 5, 2018.We depend on U.S. and international demand for and production ofoil andnatural gas, and a reduction in this demand or production could adversely affect the demand or the prices we charge for our services, which could cause our revenuesand operating cash flows to decreasein thefuture.We do notcurrently hedge, and do notintend to hedge,our indirect exposure to fluctuating commodity prices.

51

Interest Rate Risk

As of June 30, 2018, due to borrowings made during the period then ended, we had a balance outstanding under our Credit Agreement, and such borrowings bear interest at variable rates of interest (currently 4.52%).

	Expected Maturity Date																Fair Market Value
($ amounts in thousands)	2018		2019		2020		2021		2022			Thereafter			Total
June 30, 2018
Variable rate
Long-term debt:	$	—	$	60,950	$	—	$	—	$	—		$	—		$	60,950	$	60,950
U.S. dollar fixed rate - TETRA	$	—	$	—	$	—	$	—	$125,000			$	—		$	125,000	$	128,200
U.S. dollar fixed rate - CCLP	$	—	$	—	$	—	$	—	$295,930			$	350,000		$	645,930	$	623,300
Weighted average interest rate (fixed)	—		—		—		—		8.36		%	7.50		%	—

Exchange Rate Risk

As of June 30, 2018, there have been no material changes pertaining to our exchange rate exposures as disclosed in our Form 10-K for the year ended December 31, 2017.

Item 4. Controls and Procedures.

Under the supervision and with the participation of our management, including our Chief Executive Officer and Chief Financial Officer, we conducted an evaluation of our disclosure controls and procedures, as such term is defined under Rule 13a-15(e) promulgated under the Securities Exchange Act of 1934, as amended. Based on this evaluation, the Chief Executive Officer and Chief Financial Officer concluded that our disclosure controls and procedures were effective as of June 30, 2018, the end of the period covered by this quarterly report.

As discussed above in this Quarterly Report on Form 10-Q, on February 28, 2018, we completed the acquisition of SwiftWater. We are currently integrating SwiftWater into our internal control over financial reporting processes. In executing this integration, we are analyzing, evaluating, and, where necessary, making changes in controls and procedures related to the SwiftWater business, which we expect to be completed in fiscal year 2019. We expect to exclude SwiftWater from our assessment of internal control over financial reporting as of December 31, 2018. Total assets of SwiftWater represented approximately 6% of our consolidated total assets as of June 30, 2018, and SwiftWater's revenues following the February 28, 2018 acquisition date represented approximately 11%and 8% of our consolidated revenues for the three and six month period ended June 30, 2018, respectively.

Other than the changes described above, there were no changes in our internal control over financial reporting that occurred during the fiscal quarter ended June 30, 2018, that have materially affected, or are reasonably likely to materially affect, our internal control over financial reporting.

PART II

OTHER INFORMATION

Item 1. Legal Proceedings.

We are named defendants in several lawsuits and respondents in certain governmental proceedings arising in the ordinary course of business. While the outcome of lawsuits or other proceedings against us cannot be predicted with certainty, management does not consider it reasonably possible that a loss resulting from such lawsuits or other proceedings in excess of amounts accrued has been incurred that is expected to have a material adverse impact on our financial condition, results of operations, or liquidity.

52

Environmental Proceedings

One of our subsidiaries, TETRA Micronutrients, Inc. ("TMI"), previously owned and operated a production facility located in Fairbury, Nebraska. TMI is subject to an Administrative Order on Consent issued to American Microtrace, Inc. (n/k/a/ TETRA Micronutrients, Inc.) in the proceeding styledIn the Matter of American Microtrace Corporation, EPA I.D. No. NED00610550, Respondent, Docket No. VII-98-H-0016, dated September 25, 1998 (the "Consent Order"), with regard to the Fairbury facility. TMI is liable for ongoing environmental monitoring at the Fairbury facility under the Consent Order; however, the current owner of the Fairbury facility is responsible for costs associated with the closure of that facility.While the outcome cannot be predicted with certainty, management does not consider it reasonably possible that a loss in excess of any amounts accrued has been incurred or is expected to have a material adverse impact on our financial condition, results of operations, or liquidity.

Item 1A. Risk Factors.

There have been no material changes in the information pertaining to our Risk Factors as disclosed in our Form 10-K for the year ended December 31, 2017.

Item 2. Unregistered Sales of Equity Securities and Use of Proceeds.

(a) None.

(b) None.

(c) Purchases of Equity Securities by the Issuer and Affiliated Purchasers.

Period	Total Number of Shares Purchased		Average Price Paid per Share		Total Number of Shares Purchased as Part of Publicly Announced Plans or Programs(1)	Maximum Number (or Approximate Dollar Value) of Shares that May Yet be Purchased Under the Publicly Announced Plans or Programs(1)
April 1 – April 30, 2018	421	(2)	$	3.75	—	$	14,327,000
May 1 – May 31, 2018	13,545	(2)	4.19		—	14,327,000
June 1 – June 30, 2018	464	(2)	4.51		—	14,327,000
Total	14,430				—	$	14,327,000

(1) In January 2004, our Board of Directors authorized the repurchase of up to $20 million of our common stock.Purchases will be made from time to time in open market transactions at prevailing market prices. The repurchase program may continue until the authorized limit is reached, at which time the Board of Directors may review the option of increasing the authorized limit.

(2) Shares we received in connection with the exercise of certain employee stock options or the vesting of certain shares of employee restricted stock. These shares were not acquired pursuant to the stock repurchase program.

Item 3. Defaults Upon Senior Securities.

None.

Item 4.Mine Safety Disclosures.

None.

Item 5. Other Information.

None.

53

Item 6. Exhibits.

Exhibits:

10.1	TETRA Technologies, Inc. 2018 Equity Incentive Plan (incorporated by reference to Exhibit 4.5 to the Company’s registration statement on Form S-8 filed on May 4, 2018 (SEC File No. 333-224679).
10.2	Form of TETRA Technologies, Inc. 2018  Equity Incentive Plan Restricted Stock Award Agreement (incorporated by reference to Exhibit 4.6 to the Company’s registration statement on Form S-8 filed on May 4, 2018 (SEC File No. 333-224679).
10.3	Form of TETRA Technologies, Inc. 2018 Equity Incentive Plan Incentive Stock Option Award Agreement (incorporated by reference to Exhibit 4.7 to the Company’s registration statement on Form S-8 filed on May 4, 2018 (SEC File No. 333224679).
10.4	Form of TETRA Technologies, Inc. 2018 Equity Incentive Plan Nonqualified Stock Option Award Agreement (incorporated by reference to Exhibit 4.8 to the Company’s registration statement on Form S-8 filed on May 4, 2018 (SEC File No. 333-224679).
10.5	TETRA Technologies, Inc. 2018 Non-Employee Director Equity Incentive Plan (incorporated by reference to Exhibit 4.5 to the Company’s registration statement on Form S-8 filed on May 4, 2018 (SEC File No. 333-224678).
10.6	Form of TETRA Technologies, Inc. 2018  Non-Employee Director Equity Incentive Plan Restricted Stock Award Agreement (incorporated by reference to Exhibit 4.6 to the Company’s registration statement on Form S-8 filed on May 4, 2018 (SEC File No. 333-224678).
31.1*	Certification Pursuant to Rule 13a-14(a) or 15d-14(a) of the Exchange Act, As Adopted Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.
31.2*	Certification Pursuant to Rule 13a-14(a) or 15d-14(a) of the Exchange Act, As Adopted Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.
32.1***	Certification Furnished Pursuant to 18 U.S.C. Section 1350, As Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.
32.2***	Certification Furnished Pursuant to 18 U.S.C. Section 1350, As Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.
101.INS+	XBRL Instance Document.
101.SCH+	XBRL Taxonomy Extension Schema Document.
101.CAL+	XBRL Taxonomy Extension Calculation Linkbase Document.
101.LAB+	XBRL Taxonomy Extension Label Linkbase Document.
101.PRE+	XBRL Taxonomy Extension Presentation Linkbase Document.
101.DEF+	XBRL Taxonomy Extension Definition Linkbase Document.

* Filed with this report.

** Filed with this report. The schedules and exhibits to this agreement have been omitted from this filing pursuant to Item 601(b)(2) of Regulation S-K. The Company will furnish supplementary any omitted schedules and exhibits to the Securities Exchange Commission upon request.

*** Furnished with this report.

+ Attached as Exhibit 101 to this report are the following documents formatted in XBRL (Extensible Business Reporting Language): (i) Consolidated Statements of Operations for the three and six month periods ended June 30, 2018 and 2017; (ii) Consolidated Statements of Comprehensive Income for the three and six month periods ended June 30, 2018 and 2017; (iii) Consolidated Balance Sheets as of June 30, 2018 and December 31, 2017; (iv) Consolidated Statements of Cash Flows for the six month periods ended June 30, 2018 and 2017; and (v) Notes to Consolidated Financial Statements for the six months ended June 30, 2018.

A statement of computation of per share earnings is included in Note A of the Notes to Consolidated Financial Statements included in this report and is incorporated by reference into Part II of this report.

54

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.

		TETRA Technologies, Inc.
Date:	August 9, 2018	By:	/s/Stuart M. Brightman
			Stuart M. Brightman
			Chief Executive Officer
Date:	August 9, 2018	By:	/s/Elijio V. Serrano
			Elijio V. Serrano
			Senior Vice President
			Chief Financial Officer
Date:	August 9, 2018	By:	/s/Ben C. Chambers
			Ben C. Chambers
			Vice President – Accounting
			Principal Accounting Officer

55

EX-31.1

Exhibit 31.1

Certification Pursuant to

Rule 13a-14(a) or 15d-14(a) of the Exchange Act

As Adopted Pursuant to

Section 302 of the Sarbanes-Oxley Act of 2002

I, Stuart M. Brightman, certify that:

1. I have reviewed this report on Form 10-Q for the fiscalquarter ended June 30, 2018, of TETRA Technologies, 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 presentedin 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;

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 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 function):

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 controls over financial reporting.

Date:	August 9, 2018	/s/Stuart M. Brightman
		Stuart M. Brightman
		Chief Executive Officer

EX-31.2

Exhibit 31.2

Certification Pursuant to

Rule 13a-14(a) or 15d-14(a) of the Exchange Act

As Adopted Pursuant to

Section 302 of the Sarbanes-Oxley Act of 2002

I, Elijio V. Serrano, certify that:

1. I have reviewed this report on Form 10-Q for the fiscalquarter ended June 30, 2018, of TETRA Technologies, 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 presentedin 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;

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 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 function):

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 controls over financial reporting.

Date:	August 9, 2018	/s/Elijio V. Serrano
		Elijio V. Serrano
		SeniorVice 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

In connection with the Quarterly Report of TETRA Technologies, Inc. (the “Company”) on Form 10-Q for the period ending June 30, 2018 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Stuart M. Brightman, President and Chief Executive Officer of the Company, certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section906 of the Sarbanes-Oxley Act of 2002, that:

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

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

Dated:	August 9, 2018	/s/Stuart M. Brightman
		Stuart M. Brightman
		Chief Executive Officer
		TETRA Technologies, Inc.

A signed original of this written statementrequired by Section 906 has been provided to the Company and will be retained by the Company and furnished to the Securities and Exchange Commission or its staff upon request.

EX-32.2

Exhibit 32.2

Certification Pursuant to

18 U.S.C. Section 1350

As Adopted Pursuant to

Section 906 of the Sarbanes-Oxley Act of 2002

In connection with the Quarterly Report of TETRA Technologies, Inc. (the “Company”) on Form 10-Q for the period ending June 30, 2018 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Elijio V. Serrano, Senior Vice President and Chief Financial Officer of the Company, certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that:

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

(2) The information contained in the Report fairly presents, in all materialrespects, the financial condition and results of operations of the Company.

Dated:	August 9, 2018	/s/Elijio V. Serrano
		Elijio V. Serrano
		Senior Vice President and
		Chief Financial Officer
		TETRA Technologies, Inc.

A signed original ofthis written statement required by Section 906 has been provided to the Company and will be retained by the Company and furnished to the Securities and Exchange Commission or its staff upon request.

XML

Document And Entity Information - shares	6 Months Ended
	Jun. 30, 2018	Aug. 09, 2018
Document Information [Line Items]
Entity Registrant Name	TETRA TECHNOLOGIES INC
Entity Central Index Key	0000844965
Current Fiscal Year End Date	--12-31
Entity Filer Category	Accelerated Filer
Entity Common Stock Shares Outstanding		125,679,432
Document Fiscal Year Focus	2018
Document Fiscal Period Focus	Q2
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Jun. 30, 2018

XML

Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Income Statement [Abstract]
Gain (Loss) on Disposition of Business			$ 33,813
Revenues:
Product sales	$ 107,687	$ 86,180	183,066	$ 154,158
Services and rentals	152,385	93,751	276,387	185,182
Total revenues	260,072	179,931	459,453	339,340
Cost of revenues:
Cost of product sales	86,115	61,767	146,329	111,349
Cost of services and rentals	97,177	62,845	181,920	126,494
Depreciation, amortization, and accretion	28,979	25,784	55,420	52,308
Total cost of revenues	212,271	150,396	383,669	290,151
Gross profit	47,801	29,535	75,784	49,189
General and administrative expense	33,617	29,460	64,420	56,211
Interest expense, net	18,379	14,328	33,352	28,095
Fair Value Adjustment Of Warrants, Income Statement	2,195	(5,545)	201	(11,521)
Preferred, Fair Value Adjustment	(512)	(4,834)	846	(3,203)
Litigation Settlement, Amount	0	0	0	(12,816)
Other (income) expense, net	3,808	775	6,584	1,236
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest	(9,686)	(4,649)	(29,619)	(8,813)
Income (loss) before taxes	(12,132)	(7,966)	(33,189)	(12,211)
Provision (benefit) for income taxes	2,446	3,317	3,570	3,398
Income (Loss) from Discontinued Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest	(21)	(6,653)	(41,727)	(13,660)
Net income (loss)	(12,153)	(14,619)	(74,916)	(25,871)
(Income) loss attributable to noncontrolling interest	6,188	3,628	15,303	12,417
Net income (loss) attributable to TETRA stockholders	$ (5,965)	$ (10,991)	$ (59,613)	$ (13,454)
Basic net income per common share:
Net income (loss) attributable to TETRA stockholders	$ (0.05)	$ (0.10)	$ (0.47)	$ (0.12)
Average shares outstanding	122,474	114,534	125,553	114,375
Income (Loss) from Continuing Operations, Per Diluted Share	$ (0.05)	$ (0.04)	$ (0.14)	$ 0.00
Income (Loss) from Discontinued Operations and Disposal of Discontinued Operations, Net of Tax, Per Diluted Share	0.00	(0.06)	(0.33)	(0.12)
Income (Loss) from Continuing Operations, Per Basic and Diluted Share	(0.05)	(0.04)	(0.14)	0.00
Income (Loss) from Discontinued Operations and Disposal of Discontinued Operations, Net of Tax, Per Basic Share	0.00	(0.06)	(0.33)	(0.12)
Diluted net income per common share:
Net income (loss) attributable to TETRA stockholders	$ (0.05)	$ (0.10)	$ (0.47)	$ (0.12)
Average diluted shares outstanding	122,474	114,534	125,553	114,375

XML

Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Statement of Comprehensive Income [Abstract]
Net income (loss)	$ (12,153)	$ (14,619)	$ (74,916)	$ (25,871)
Foreign currency translation adjustment, including taxes of $0 and $0 in 2015 and $1,198 and $1,644 in 2014	(9,249)	2,968	(7,966)	5,161
Comprehensive income	(21,402)	(11,651)	(82,882)	(20,710)
Comprehensive (income) loss attributable to noncontrolling interest	7,942	3,303	17,442	12,233
Comprehensive income (loss) attributable to TETRA stockholders	$ (13,460)	$ (8,348)	$ (65,440)	$ (8,477)

XML

Consolidated Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Current assets:
Cash and cash equivalents	$ 70,157	$ 26,128
Restricted cash	4,273	261
Trade accounts receivable, net of allowances	181,454	144,051
Inventories	133,367	115,438
Assets held for sale	1,538	121,134
Prepaid expenses and other current assets	19,457	17,597
Total current assets	410,246	424,609
Property, plant, and equipment:
Land and building	79,000	78,559
Machinery and equipment	1,207,766	1,167,680
Automobiles and trucks	36,502	34,744
Chemical plants	188,135	186,790
Construction in progress	44,590	31,566
Total property, plant, and equipment	1,555,993	1,499,339
Less accumulated depreciation	(722,915)	(689,907)
Net property, plant, and equipment	833,078	809,432
Other assets:
Goodwill	22,197	6,636
Patents, trademarks and other intangible assets, net of accumulated amortization	85,878	47,405
Deferred tax assets, net	10	10
Notes, Loans and Financing Receivable, Net, Current	7,501	44
Other assets	20,709	20,478
Total other assets	136,295	74,573
Total assets	1,379,619	1,308,614
Current liabilities:
Trade accounts payable	55,292	70,847
Unearned income	30,718	18,701
Accrued liabilities	72,829	58,478
Disposal Group, Including Discontinued Operation, Liabilities	8,343	73,913
Total current liabilities	167,182	221,939
Long-term debt, net of current portion	810,739	629,855
Deferred income taxes	3,889	4,404
Decommissioning and other asset retirement obligations, net	12,073	11,738
Preferred Units	45,644	61,436
Warranty Liability	13,403	13,202
Other liabilities	15,627	13,479
Total long-term liabilities	901,375	734,114
Equity:
Common stock, par value $0.01 per share	1,283	1,185
Additional paid-in capital	457,082	425,648
Treasury stock, at cost	(18,865)	(18,651)
Accumulated other comprehensive income (loss)	(49,594)	(43,767)
Retained earnings	(215,948)	(156,335)
Total TETRA stockholders' equity	173,958	208,080
Noncontrolling interests	137,104	144,481
Total equity	311,062	352,561
Total liabilities and equity	$ 1,379,619	$ 1,308,614

XML

Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Current assets:
Trade accounts receivable, allowances for doubtful accounts	$ 1,380	$ 1,286
Other assets:
Patents, trademarks, and other intangible assets, accumulated amortization	$ 74,149	$ 71,114
Equity:
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized	250,000,000	250,000,000
Common stock, shares issued	128,349,334	118,515,797
Treasury stock, shares held	2,015,775	2,638,093

XML

Consolidated Statements of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017
Statement of Cash Flows [Abstract]
Gain (Loss) on Disposition of Assets	$ 32,369	$ 0
Payments Related to Tax Withholding for Share-based Compensation	(593)	(407)
Operating activities:
Net income (loss)	(74,916)	(25,871)
Reconciliation of net income (loss) to cash provided by (used in) operating activities:
Depreciation, amortization, and accretion	57,505	58,098
Provision (benefit) for deferred income taxes	(280)	(316)
Equity-based compensation expense	3,422	5,444
Provision for doubtful accounts	665	1,244
Amortization of deferred financing costs	2,133	2,266
Offering Costs of Preferred Units	0	37
Paid-in-Kind Interest	2,838	3,797
Liabilities, Fair Value Adjustment	846	(3,203)
Warrants fair value adjustment	201	(11,521)
Business Combination, Contingent Consideration Arrangements, Change in Amount of Contingent Consideration, Liability	4,300	0
Other non-cash charges and credits	3,616	(335)
Gain on sale of assets	(65)	(533)
Changes in operating assets and liabilities, net of assets acquired:
Accounts receivable	(46)	(30,970)
Inventories	(18,398)	(10,690)
Prepaid expenses and other current assets	(2,434)	(1,983)
Trade accounts payable and accrued expenses	(23,246)	14,605
Decommissioning liabilities, net	0	(497)
Other	(637)	(133)
Net cash provided by (used in) operating activities	(12,127)	(561)
Investing activities:
Purchases of property, plant, and equipment	(67,441)	(16,643)
Payments to Acquire Businesses, Net of Cash Acquired	42,002	0
Proceeds from Divestiture of Businesses	3,121	0
Proceeds on sale of property, plant, and equipment	307	380
Other investing activities	(332)	235
Net cash provided by (used in) investing activities	(106,347)	(16,028)
Financing activities:
Proceeds from long-term debt	508,250	178,700
Principal payments on long-term debt	(325,300)	(156,550)
CSI Compressco LP distributions	(8,982)	(10,944)
Other financing activities	(7,881)	(1,291)
Net cash provided by (used in) financing activities	165,494	9,508
Effect of exchange rate changes on cash	1,021	530
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect	48,041	(6,551)
Cash, cash equivalents, and restricted cash	74,430	29,980
Supplemental cash flow information:
Interest paid	18,610	22,716
Income taxes paid	$ 3,314	$ 4,416

XML

Basis of Presentation and Significant Accounting Policies Basis of Presentation and Significant Accounting Policies (Notes)

6 Months Ended

Jun. 30, 2018

Accounting Policies [Abstract]

Significant Accounting Policies [Text Block]

BASIS OF PRESENTATION AND SIGNIFICANT ACCOUNTING POLICIES

We are a geographically diversified oil and gas services company, focused on completion fluids and associated products and services, water management, frac flowback, production well testing and offshore rig cooling services, and compression services and equipment. We were incorporated in Delaware in 1981. Following the acquisition and disposition transactions that closed during the three month period ended March 31, 2018, we reorganized our reporting segments and are now composed of three divisions – Completion Fluids & Products, Water & Flowback Services, and Compression. Unless the context requires otherwise, when we refer to “we,” “us,” and “our,” we are describing TETRA Technologies, Inc. and its consolidated subsidiaries on a consolidated basis.

Our consolidated financial statements include the accounts of our wholly owned subsidiaries. All intercompany accounts and transactions have been eliminated in consolidation. The information furnished reflects all normal recurring adjustments, which are, in the opinion of management, necessary to provide a fair statement of the results for the interim periods. Operating results for the period ended June 30, 2018 are not necessarily indicative of results that may be expected for the twelve months ended December 31, 2018.

We consolidate the financial statements of CSI Compressco LP and its subsidiaries ("CCLP") as part of our Compression Division, as we determined that CCLP is a variable interest entity and we are the primary beneficiary. We control the financial interests of CCLP and have the ability to direct the activities of CCLP that most significantly impact its economic performance through our ownership of its general partner. The share of CCLP net assets and earnings that is not owned by us is presented as noncontrolling interest in our consolidated financial statements. Our cash flows from our investment in CCLP are limited to the quarterly distributions we receive on our CCLP common units and general partner interest (including incentive distribution rights) and the amounts collected for services we perform on behalf of CCLP, as TETRA's capital structure and CCLP's capital structure are separate, and do not include cross default provisions, cross collateralization provisions, or cross guarantees.

The accompanying unaudited consolidated financial statements have been prepared in accordance with Rule 10-01 of Regulation S-X for interim financial statements required to be filed with the Securities and Exchange Commission ("SEC") and do not include all information and footnotes required by generally accepted accounting principles for complete financial statements. These financial statements should be read in connection with the financial statements for the year ended December 31, 2017, and notes thereto included in our Annual Report on Form 10-K, whichwe filed with the SEC on March 5, 2018.

Use of Estimates

The preparation of financial statements in conformity with U.S. generally accepted accounting principles ("GAAP") requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclose contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues, expenses, and impairments during the reporting period. Actual results could differ from those estimates, and such differences could bematerial.

Reclassifications

Certain previously reported financial information has been reclassified to conform to the current period’s presentation. For a discussion of the reclassification of the financial presentation of our Offshore Division as discontinued operations, see Note C - "Discontinued Operations."

Cash Equivalents

We consider all highly liquid cash investments with a maturity of three months or less when purchased to be cash equivalents.

Restricted Cash

Restricted cash is classified as a current asset when it is expected to be repaid or settled in the next twelve month period. Restricted cash as of June 30, 2018 consists of cash used to secure outstanding letters of credit of our Compression Division.

Inventories

Inventories are stated at the lower of cost or net realizable value. Except for work in progress inventory discussed below, cost is determined using the weighted average method. Components of inventories as of June 30, 2018 and December 31, 2017 are as follows: 

	June 30, 2018		December 31, 2017
	(In Thousands)
Finished goods	$	60,011	$	66,377
Raw materials	3,934		4,027
Parts and supplies	44,585		33,632
Work in progress	24,837		11,402
Total inventories	$	133,367	$	115,438

Finished goods inventories include newly manufactured clear brine fluids as well as used brines that are repurchased from certain customers for recycling. Recycled brines are recorded at cost, using the weighted average method. Work in progress inventory consists primarily of new compressor packages located in the CCLP fabrication facility in Midland, Texas. The cost of work in progress is determined using the specific identification method. We write down the value of inventory by an amount equal to the difference between its cost and its estimated net realizable value.

Net Income (Loss) per Share

The following is a reconciliation of the weighted average number of common shares outstanding with the number of shares used in the computations of net income (loss) per common and common equivalent share:

	Three Months Ended   June 30,		Six Months Ended   June 30,
	2018	2017	2018	2017
	(In Thousands)
Number of weighted average common shares outstanding	122,474	114,534	125,553	114,375
Assumed exercise of equity awards and warrants	—	—	—	—
Average diluted shares outstanding	122,474	114,534	125,553	114,375

For thethree and six month periods ended June 30, 2018 and June 30, 2017, the average diluted shares outstanding excludes the impact of all outstanding equity awards and warrants, as the inclusion of these shares would have been anti-dilutive due to the net losses recorded during the periods. In addition, for the three and six month periods ended June 30, 2018 and June 30, 2017, the calculation of diluted earnings per common share excludes the impact of the CCLP Preferred Units, as the inclusion of the impact from conversion of the CCLP Preferred Units into CCLP common units would have been anti-dilutive.

Foreign Currency Translation

We have designated the euro, the British pound, the Norwegian krone, the Canadian dollar, theBrazilian real, the Argentine peso, and theMexican peso, as the functional currencies for our operations in Finland and Sweden, the United Kingdom, Norway, Canada, Brazil, Argentina,and certain of our operations in Mexico, respectively. The U.S. dollar is the designated functional currency for all of our other foreign operations. The cumulative translation effects of translating the applicable accounts from the functional currencies into the U.S. dollar at current exchange rates are included as a separate component ofequity. Foreign currency exchange (gains) and losses are included in other (income) expense, net and totaled $0.6 million and $(0.3) millionduring the three and six month periods ended June 30, 2018 and $0.6 million and $1.2 million during the three and six month periods ended June 30, 2017, respectively.

On June 30, 2018, we determined the economy in Argentina to be highly inflationary. As a result of this determination, beginning July 1, 2018, our reporting of our operations in Argentina will reflect the remeasurement of the functional currency from the Argentine peso to the U.S. dollar.

Income Taxes

Our consolidated provision for income taxes during the first six months of 2017 and 2018 is primarily attributable to taxes in certain foreign jurisdictions and Texas gross margin taxes. Our consolidated effective tax rate for the six month period ended June 30, 2018 of negative 12.1% was primarily the result of losses generated in entities for which no related tax benefit has been recorded. The losses generated by these entities do not result in tax benefits due to offsetting valuation allowances being recorded against the related net deferred tax assets. We establish a valuation allowance to reduce the deferred tax assets when it is more likely than not that some portion or all of the deferred tax assets will not be realized. Included in our deferred tax assets are net operating loss carryforwards and tax credits that are available to offset future income tax liabilities in the U.S. as well as in certain foreign jurisdictions.

The Tax Cuts and Jobs Act (the “Act”) was enacted on December 22, 2017. At June 30, 2018 and December 31, 2017, we had not completed our accounting for the tax effects of enactment of the Act; however, in certain cases, as described below, we made reasonable estimates of the effects and recorded provisional amounts. We will continue to make and refine our calculations as additional analysis is completed. The accounting for the tax effects of the Act will be completed in 2018 as provided by the U.S. Securities and Exchange Commission’s SAB No. 118, Income Tax Accounting Implications of the Tax Cuts and Jobs Act. We recognized an income tax expense of $54.1 million in the fourth quarter of 2017 associated with the impact of the Act, which was fully offset by a decrease in the valuation allowance previously recorded on our net deferred tax assets. As such, the Act resulted in no net tax expense in the fourth quarter of 2017. We have considered in our estimated annual effective tax rate for 2018, the impact of the statutory changes enacted by the Act, including reasonable estimates of those provisions effective for the 2018 tax year. Our estimate on Global Intangible Low Taxed Income (“GILTI”), Foreign Derived Intangible Income (“FDII”), Base Erosion and Anti-Abuse Tax (“BEAT”), and IRC Section 163(j) interest limitation do not impact our effective tax rate for the three and six month periods ended June 30, 2018.

Asset Retirement Obligations

We operate facilities in various U.S. and foreign locations that are used in the manufacture, storage, and sale of our products, inventories, and equipment. These facilities are a combination of owned and leased assets. We are required to take certain actions in connection with the retirement of these assets. The values of our asset retirement obligations for these properties were $12.1 million and $11.7 million as of June 30, 2018 and December 31, 2017, respectively. Asset retirement obligations are recorded in accordance with Financial Accounting Standards Board ("FASB") Accounting Standards Codification ("ASC") 410, "Asset Retirement and Environmental Obligations," whereby the estimated fair value of a liability for asset retirement obligations is recognized in the period in which it is incurred and in which a reasonable estimate can be made. Such estimates are based on relevant assumptions that we believe are reasonable. We have reviewed our obligations in this regard in detail and estimated the cost of these actions. The associated asset retirement costs are capitalized as part of the carrying amount of these long-lived assets and are depreciated on a straight-line basis over the life of the assets.

The changes in the values of our asset retirement obligations during the three and six month period ended June 30, 2018, are as follows:

	Three Months Ended June 30, 2018			Six Months Ended June 30, 2018
	(In Thousands)
Beginning balance for the period, as reported	$	11,929		$	11,738
Activity in the period:
Accretion of liability	150			309
Revisions in estimated cash flows	(6		)	26
Ending balance	$	12,073		$	12,073

We review the adequacy of our asset retirement obligation liabilities whenever indicators suggest that the estimated cash flows underlying the liabilities have changed.

Fair Value Measurements

Fair value is defined as “the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date” within an entity’s principal market, if any. The principal market is the market in which the reporting entity would sell the asset or transfer the liability with the greatest volume and level of activity, regardless of whether it is the market in which the entity will ultimately transact for a particular asset or liability or if a different market is potentially more advantageous. Accordingly, this exit price concept may result in a fair value that may differ from the transaction price or market price of the asset or liability.

Under U.S. generally accepted accounting principles ("GAAP"), the fair value hierarchy prioritizes inputs to valuation techniques used to measure fair value. Fair value measurements should maximize the use of observable inputs and minimize the use of unobservable inputs, where possible. Observable inputs are developed based on market data obtained from sources independent of the reporting entity. Unobservable inputs may be needed to measure fair value in situations where there is little or no market activity for the asset or liability at the measurement date and are developed based on the best information available in the circumstances, which could include the reporting entity’s own judgments about the assumptions market participants would utilize in pricing the asset or liability.

We utilize fair value measurements to account for certain items and account balances within our consolidated financial statements. Fair value measurements are utilized on a recurring basis in the determination of the carrying values of the liabilities for the warrants to purchase 11.2 million shares of our common stock (the "Warrants") and the CCLP Preferred Units (as herein defined). We also utilize fair value measurements on a recurring basis in the accounting for our foreign currency derivative contracts. For these fair value measurements, we utilize the quoted value as determined by our counterparty financial institution (a level 2 fair value measurement). Fair value measurements are also utilized on a nonrecurring basis in certain circumstances, such as in the allocation of purchase consideration for acquisition transactions to the assets and liabilities acquired, including intangible assets and goodwill (a level 3 fair value measurement), the initial recording of our asset retirement obligations, and for the impairment of long-lived assets, including goodwill (a level 3 fair value measurement). The fair values of certain of our financial instruments, which include cash, restricted cash, accounts receivable, accounts payable, short-term borrowings, and long-term debt pursuant to our bank credit agreement, approximate their carrying amounts. The aggregate fair values of our long-term 11% Senior Note at June 30, 2018 and December 31, 2017, were approximately $128.2 million and $130.8 million, respectively, based on current interest rates on those dates, which were different from the stated interest rate on the 11% Senior Note. Those fair values compare to the face amount of the 11% Senior Note of $125.0 million both at June 30, 2018 and December 31, 2017. The fair values of the publicly traded CCLP 7.25% Senior Notes (as herein defined) at June 30, 2018 and December 31, 2017, were approximately $271.5 million and $279.7 million, respectively. Those fair values compare to the face amount of $295.9 million both at June 30, 2018 and December 31, 2017. The fair value of the publicly traded CCLP 7.50% Senior Secured Notes at June 30, 2018 was approximately $351.8 million. This fair value compares to aggregate principal amount of such notes at June 30, 2018 of $350.0 million. We calculated the fair values of our 11% Senior Note as of June 30, 2018 and December 31, 2017 internally, using current market conditions and average cost of debt (a level 2 fair value measurement). We based the fair values of the CCLP 7.25% Senior Notes and the CCLP 7.50% Senior Secured Notes as of June 30, 2018 on recent trades for these notes (a level 1 fair value measurement). See Note D - "Long-Term Debt and Other Borrowings," for further discussion.

The CCLP Preferred Units are valued using a lattice modeling technique that, among a number of lattice structures, includes significant unobservable items (a Level 3 fair value measurement). These unobservable items include (i) the volatility of the trading price of CCLP's common units compared to a volatility analysis of equity prices of CCLP's comparable peer companies, (ii) a yield analysis that utilizes market information related to the debt yields of comparable peer companies, and (iii) a future conversion price analysis. The fair valuation of the CCLP Preferred Units liability is increased by, among other factors, projected increases in CCLP's common unit price and by increases in the volatility and decreases in the debt yields of CCLP's comparable peer companies. Increases (or decreases) in the fair value of CCLP Preferred Units will increase (decrease) the associated liability and result in future adjustments to earnings for the associated valuation losses (gains). During the three and six month periods ended June 30, 2018, the changes in the fair value of the CCLP Preferred Units resulted in $0.5 million being credited to earnings and $0.8 millioncharged to earnings, respectively, in the consolidated statement of operations.

The Warrants are valued either by using their traded market prices (a level 1 fair value measurement) or, for periods when market prices are not available, by using the Black Scholes option valuation model that includes estimates of the volatility of the Warrants implied by their trading prices (a level 3 fair value measurement). As of June 30, 2018and December 31, 2017, the fair valuation methodology utilized for the Warrants was a level 3 fair value measurement, as there were no available traded market prices to value the Warrants. The fair valuation of the Warrants liability is increased by, among other factors, increases in our common stock price, and by increases in the volatility of our common stock price. Increases (or decreases) in the fair value of the Warrants will increase (decrease) the associated liability and result in future adjustments to earnings for the associated valuation losses (gains). During the three and six month periods ended June 30, 2018, the changes in the fair value of the Warrants liability resulted in $2.2 million being charged to earnings and $0.2 million being charged to earnings, respectively, in the consolidated statement of operations.

During the third quarter of 2017 and the first quarter of 2018, we issued stand-alone, cash-settled stock appreciation rights awards to an executive officer. These awards are valued by using the Black Scholes option valuation model and such fair value is recognized based on the portion of the requisite service period satisfied as of each valuation date. The fair valuation of the stock appreciation rights liability is increased by, among other factors, increases in our common stock price, and by increases in the volatility of our common stock price. These stock appreciation rights awards are reflected as an accrued liability in our consolidated balance sheet. Increases (or decreases) in the fair value of the stock appreciation rights awards will increase (decrease) the associated liability and result in future adjustments to earnings for the associated valuation losses (gains). During the six months ended June 30, 2018, the fair value of the stock appreciation rights increased $0.2 million, which was charged to earnings in the consolidated statement of operations.

A summary of these fair value measurements as of June 30, 2018 and December 31, 2017, is as follows:

				Fair Value Measurements Using
	Total as of			Quoted Prices in Active Markets for Identical Assets or Liabilities		Significant Other Observable Inputs			Significant Unobservable Inputs
Description	June 30, 2018			(Level 1)		(Level 2)			(Level 3)
	(In Thousands)
CCLP Series A Preferred Units	$	(45,644	)	$	—	$	—		$	(45,644	)
Warrants liability	(13,403		)	—		—			(13,403		)
Cash-settled stock appreciation rights	(287		)	—		—			(287		)
Asset for foreign currency derivative contracts	180			—		180			—
Liability for foreign currency derivative contracts	(241		)	—		(241		)	—
Net liability	$	(59,395	)

				Fair Value Measurements Using
	Total as of			Quoted Prices in Active Markets for Identical Assets or Liabilities		Significant Other Observable Inputs			Significant Unobservable Inputs
Description	December 31, 2017			(Level 1)		(Level 2)			(Level 3)
	(In Thousands)
CCLP Series A Preferred Units	$	(61,436	)	$	—	$	—		$	(61,436	)
Warrants liability	(13,202		)	—		—			(13,202		)
Cash-settled stock appreciation rights	(97		)	—		—			(97		)
Asset for foreign currency derivative contracts	241			—		241			—
Liability for foreign currency derivative contracts	(368		)	—		(378		)	—
Net liability	$	(74,862	)

New Accounting Pronouncements

In May 2014, the Financial Accounting Standards Board ("FASB") issued Accounting Standards Update ("ASU") 2014-09, "Revenue from Contracts with Customers." This ASU supersedes the revenue recognition requirements in Accounting Standards Codification ("ASC") 605, "Revenue Recognition," and most industry-specific guidance. This ASU is effective for annual periods beginning after December 15, 2017, and interim periods within those years, under either full or modified retrospective adoption.

On January 1, 2018, we adopted ASU 2014-09 and all related amendments ("ASU 2014-09"). We utilized the modified retrospective method of adoption. Comparative information has not been restated and continues to be reported under the accounting standards in effect for those periods.

The core principle of ASU 2014-09 is that an entity should recognize revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. ASU 2014-09 also provides a five-step model for determining revenue recognition for arrangements that are within the scope of the standard: (i) identify the contract(s) with a customer; (ii) identify the performance obligations in the contract; (iii) determine the transaction price; (iv) allocate the transaction price to the performance obligations in the contract; and (v) recognize revenue when (or as) the entity satisfies a performance obligation. We only apply the five-step model to contracts when it is probable that we will collect the consideration we are entitled to in exchange for the goods or services we transfer to the customer. At contract inception, once the contract is determined to be within the scope of ASU 2014-09, we assess the goods or services promised within each contract and determine those that are performance obligations and assess whether each promised good or service is distinct. We then recognize as revenue the amount of the transaction price that is allocated to the respective performance obligation when (or as) the performance obligation is satisfied. For a complete discussion of accounting for revenues, see Note J - Revenue from Contracts with Customers.

The impact from the adoption of ASU 2014-09 to our January 1, 2018 consolidated balance sheet, our June 30, 2018 consolidated balance sheet, and our consolidated results of operations for the three and six month periods ended June 30, 2018 was immaterial. The adoption of ASU 2014-09 had no impact to cash provided by operating, financing, or investing activities in our consolidated statement of cash flows. We do not expect the adoption of the new revenue standard to have a material impact to our net income on an ongoing basis.

In February 2016, the FASB issued ASU 2016-02, "Leases" (Topic 842) to increase comparability and transparency among different organizations. Organizations are required to recognize right-of-use lease assets and lease liabilities on the balance sheet related to the right to use the underlying asset for the lease term.In addition, through improved disclosure requirements, the ASU will enable users of financial statements to further understand the amount, timing, and uncertainty of cash flows arising from leases. We are currently assessing the potential effects of these changes to our consolidated financial statements. Our current operating lease portfolio consists primarily of real estate, vehicles, and equipment leases. Based on our preliminary assessment, upon adoption of the ASU, we will record significant right-to-use assets and lease obligations pursuant to the new requirements. We are evaluating our portfolio of existing leases for consideration of the accounting impact of each lease. We are also evaluating and are developing internal policies to address the requirements under this ASU.

In June 2016, the FASB issued ASU 2016-13, "Financial Instruments - Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments." ASU 2016-13 amends the impairment model to utilize an expected loss methodology in place of the currently used incurred loss methodology, which will result in more timely recognition of losses. ASU 2016-13, which has an effective date of the first quarter of fiscal 2022, also applies to employee benefit plan accounting. We are currently assessing the potential effects of these changes to our consolidated financial statements and employee benefit plan accounting.

In August 2016, the FASB issued ASU 2016-15, "Statement of Cash Flows (Topic 230): Classification of Certain Cash Receipts and Cash Payments" to reduce diversity in practice in classification of certain transactions in the statement of cash flows. The ASU is effective for annual periods beginning after December 15, 2017, and interim periods within those annual periods, with early adoption permitted, under a retrospective transition adoption. We adopted this ASU during the three month period ended March 31, 2018, with no material impact to our consolidated financial statements.

In November 2016, the FASB issued ASU 2016-16, "Intra-Entity Transfers of Assets Other Than Inventory" which requires companies to account for the income tax effects of intercompany transfers of assets other than inventory when the transfer occurs. We adopted this ASU during the three month period ended March 31, 2018. The adoption of this standard did not have a material impact to our consolidated financial statements due to a previously recorded valuation allowance on our net deferred tax assets.

Additionally, in November 2016, the FASB issued ASU 2016-18, "Statement of Cash Flows (Topic 230): Restricted Cash" to reduce diversity in the presentation of restricted cash and restricted cash equivalents in the statement of cash flows. We adopted this ASU during the three month period ended March 31, 2018, resulting in restricted cash being classified with cash and cash equivalents in our consolidated statement of cash flows.

In January 2017, the FASB issued ASU 2017-04, "Intangibles-Goodwill and Other (Topic 350): Simplifying the Test for Goodwill Impairment" which simplifies how an entity is required to test goodwill for impairment by eliminating Step 2 from the goodwill impairment test. The ASU is effective for annual periods beginning after December 15, 2020, and interim periods within those annual periods, with early adoption permitted, under a prospective adoption. We do not expect the adoption of this standard to have a material impact on our consolidated financial statements.

In May 2017, the FASB issued ASU 2017-09, "Compensation-Stock Compensation (Topic 718): Scope of Modification Accounting" to clarify when to account for a change to the terms or conditions of a share-based payment award as a modification. We adopted this ASU during the three month period ended March 31, 2018, with no material impact to our consolidated financial statements.

In July 2017, the FASB issued ASU 2017-11, "Earnings Per Share (Topic 260); Distinguishing Liabilities from Equity (Topic 480); Derivatives and Hedging (Topic 815): (Part I) Accounting for Certain Financial Instruments with Down Round Features, (Part II) Replacement of the Indefinite Deferral for Mandatorily Redeemable Financial Instruments of Certain Nonpublic Entities and Certain Mandatorily Redeemable Noncontrolling Interests with a Scope Exception" to consider “down round” features when determining whether certain equity-linked financial instruments or embedded features are indexed to an entity’s own stock. Entities that present EPS under ASC 260 will recognize the effect of a down round feature in a freestanding equity-classified financial instrument only when it is triggered. The effect of triggering such a feature will be recognized as a dividend and a reduction to income available to common shareholders in basic EPS. The ASU is effective for annual periods beginning after December 15, 2018, and interim periods within those annual periods. We are currently assessing the potential effects of these changes to our consolidated financial statements.

In August 2017, the FASB issued ASU 2017-12, "Derivatives and Hedging (Topic 815): Targeted Improvements to Accounting for Hedging Activities" to change how companies account for and disclose hedges. The ASU is effective for annual periods beginning after December 15, 2018, and interim periods within those annual periods. We are currently assessing the potential effects of these changes to our consolidated financial statements.

In June 2018, the FASB issued ASU 2018-07, “Compensation-Stock Compensation (Topic 718): Improvements to Nonemployee Share-Based Payment Accounting” to align the measurement and classification guidance for share-based payments to nonemployees with the guidance currently applied to employees, with certain exceptions. The ASU is effective for annual periods beginning after December 15, 2018, and interim periods within those annual periods, with early adoption permitted. We are currently assessing the potential effects of these changes to our consolidated financial statements.

XML

Discontinued Operations (Notes)

6 Months Ended

Jun. 30, 2018

Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]

Disposal Groups, Including Discontinued Operations, Disclosure [Text Block]

DISCONTINUED OPERATIONS

As discussed in Note B - "Acquisitions and Dispositions," on March 1, 2018, we closed a series of related transactions that resulted in the disposition of our Offshore Division. As a result, we have accounted for our Offshore Division, consisting of our Offshore Services and Maritech segments, as discontinued operations and have revised prior period financial statements to exclude these businesses from continuing operations. A summary of financial information related to our discontinued operations is as follows:

Reconciliation of the Line Items Constituting Pretax Loss from Discontinued Operations to the After-Tax Loss from Discontinued Operations

(in thousands)

	Three Months Ended June 30, 2018									Three Months Ended June 30, 2017
	Offshore Services			Maritech			Total			Offshore Services			Maritech			Total
Major classes of line items constituting pretax loss from discontinued operations
Revenue	$	10		$	—		$	10		$	28,262		$	175		$	28,437
Cost of revenues	(235		)	(98		)	(333		)	27,933			314			28,247
Depreciation, amortization, and accretion	—			—			—			2,463			373			2,836
General and administrative expense	284			—			284			1,594			174			1,768
Other (income) expense, net	55			—			55			2,718			(565		)	2,153
Pretax loss from discontinued operations	(94		)	98			4			(6,446		)	(121		)	(6,567		)
Pretax loss on disposal of discontinued operations							(25		)							—
Total pretax loss from discontinued operations							(21		)							(6,567		)
Income tax expense							—									86
Total loss from discontinued operations							$	(21	)							$	(6,653	)

	Six Months Ended June 30, 2018									Six Months Ended June 30, 2017
	Offshore Services			Maritech			Total			Offshore Services			Maritech			Total
Major classes of line items constituting pretax loss from discontinued operations
Revenue	$	4,487		$	187		$	4,674		$	36,623		$	406		$	37,029
Cost of revenues	10,888			139			11,027			38,672			601			39,273
Depreciation, amortization, and accretion	1,873			212			2,085			5,046			743			5,789
General and administrative expense	1,537			187			1,724			3,063			411			3,474
Other (income) expense, net	78			—			78			2,623			(565		)	2,058
Pretax loss from discontinued operations	(9,889		)	(351		)	(10,240		)	(12,781		)	(784		)	(13,565		)
Pretax loss on disposal of discontinued operations							(33,813		)							—
Total pretax loss from discontinued operations							(44,053		)							(13,565		)
Income tax (benefit) expense							(2,326		)							95
Total loss from discontinued operations							$	(41,727	)							$	(13,660	)

Reconciliation of Major Classes of Assets and Liabilities of the Discontinued Operations to Amounts Presented Separately in the Statement of Financial Position

(in thousands)

	June 30, 2018							December 31, 2017
	Offshore Services		Maritech			Total		Offshore Services		Maritech		Total
Carrying amounts of major classes of assets included as part of discontinued operations
Trade receivables	$	161	$	1,341		$	1,502	$	27,385	$	1,542	$	28,927
Inventories	—		—			—		4,616		—		4,616
Property, plant, and equipment	—		—			—		85,873		—		85,873
Other assets	54		(18		)	36		1,674		44		1,718
Total major classes of assets of the discontinued operations	$	215	$	1,323		$	1,538	$	119,548	$	1,586	$	121,134
Carrying amounts of major classes of liabilities included as part of discontinued operations
Trade payables	1,676		—			1,676		13,942		87		14,029
Accrued liabilities	4,608		2,059			6,667		10,944		2,278		13,222
Decommissioning and other asset retirement obligations	—		—			—		—		46,662		46,662
Total major classes of liabilities of the discontinued operations	$	6,284	$	2,059		$	8,343	$	24,886	$	49,027	$	73,913

XML

Long-Term Debt and Other Borrowings

6 Months Ended

Jun. 30, 2018

Debt Disclosure [Abstract]

Long-Term Debt and Other Borrowings

LONG-TERM DEBT AND OTHER BORROWINGS

We believe TETRA's capital structure and CCLP's capital structure should be considered separately, as there are no cross default provisions, cross collateralization provisions, or cross guarantees between CCLP's debt and TETRA's debt.

Consolidated long-term debt as of June 30, 2018 and December 31, 2017, consists of the following:

		June 30, 2018		December 31, 2017
		(In Thousands)
TETRA	Scheduled Maturity
Bank revolving line of credit facility (presented net of the unamortized deferred financing costs of $1.0 million as of June 30, 2018)	September 30, 2019	$	59,906	$	—
11.0% Senior Note, Series 2015 (presented net of the unamortized discount of $3.6 million as of June 30, 2018 and $3.9 million as of December 31, 2017 and net of unamortized deferred financing costs of $3.1 million as of June 30, 2018 and $3.4 million as of December 31, 2017)	November 5, 2022	118,341		117,679
TETRA total debt		178,247		117,679
Less current portion		—		—
TETRA total long-term debt		$	178,247	$	117,679
CCLP
CCLP Bank Credit Facility (presented net of the unamortized deferred financing costs of $4.0 million as of December 31, 2017), terminated March 22, 2018	August 4, 2019	—		223,985
CCLP New Credit Agreement	June 29, 2023	—		—
CCLP 7.25% Senior Notes (presented net of the unamortized discount of $2.5 million as of June 30, 2018 and $2.8 million as of December 31, 2017 and net of unamortized deferred financing costs of $4.4 million as of June 30, 2018 and $5.0 million as of December 31, 2017)	August 15, 2022	288,989		288,191
CCLP 7.50% Senior Secured Notes (presented net of unamortized deferred financing costs of $6.5 million as of June 30, 2018)	April 1, 2025	343,503		—
CCLP total debt		632,492		512,176
Less current portion		—		—
Consolidated total long-term debt		$	810,739	$	629,855

As of June 30, 2018, TETRA (excluding CCLP) had a $61.0 million outstanding balance and$6.8 million in letters of creditagainst its Credit Agreement, leaving a net availability of $132.2 million. There was no balance outstanding under the CCLP New Credit Agreement (as defined below) as of June 30, 2018.

As described below, we and CCLP are in compliance with all covenants of our respective debt and senior note agreements as of June 30, 2018.

Our Long-Term Debt

Our Credit Agreement.

At June 30, 2018, our consolidated leverage ratio was 2.18 to 1 (compared to a 4.75 to 1 maximum allowed under the Credit Agreement) and our fixed charge coverage ratio was 2.87 to 1 (compared to a 1.25 to 1 minimum required under the Credit Agreement).

CCLP Long-Term Debt

CCLP Senior Secured Notes. On March 8, 2018, CCLP, and its wholly owned subsidiary, CSI Compressco Finance Inc. (together with CCLP, the "CCLP Issuers") entered into the Purchase Agreement (the “Purchase Agreement”) with Merrill Lynch, Pierce, Fenner & Smith Incorporated as representative of the initial purchasers listed in Schedule A thereto (collectively, the “Initial Purchasers”), pursuant to which the CCLPIssuers agreed to issue and sell to the Initial Purchasers $350 million aggregate principal amount of the CCLP Issuers’ 7.50% Senior Secured First Lien Notes due 2025 (the "CCLP Senior Secured Notes") (the "CCLP Offering") pursuant to an exemption from the registration requirements of the Securities Act of 1933, as amended (the "Securities Act").

The CCLP Issuers closed the Offering on March 22, 2018. The CCLP Senior Secured Notes were issued at par for net proceeds of approximately $343.8 million, after deducting certain financing costs. CCLP used a portion of the net proceeds to repay in full and terminate its existing bank Credit Agreement and plans to use the remainder for general partnership purposes, including the expansion of its compression fleet. The CCLP Senior Secured Notesare jointly and severally, and fully and unconditionally, guaranteed (the "Guarantees" and, together with the CCLP Senior Secured Notes, the "CCLP Senior Secured Note Securities")on a senior secured basis initially by each of CCLP's domestic restricted subsidiaries (other than CSI Compressco Finance Inc., certain immaterial subsidiaries and certain other excluded domestic subsidiaries) and are secured by a first-priority security interest in substantially all of the CCLP Issuers' and the Guarantors' assets (other than certain excluded assets) (the "Collateral") as collateral security for their obligations under the CCLP Senior Secured Notes, subject to certain permitted encumbrances and exceptions. On the closing date, CCLP entered into an indenture (the "Indenture") by and among the Obligors and U.S. Bank National Association, as trustee with respect to the Securities. The CCLP Senior Secured Notesaccrue interest at a rate of 7.50% per annum. Interest on the CCLP Senior Secured Notes is payable semi-annually in arrears on April 1 and October 1 of each year, beginning October 1, 2018. The CCLP Senior Secured Notes are scheduled to mature on April 1, 2025. During the six months ended June 30, 2018, CCLP incurred total financing costs of $6.7 million related to theCCLP Senior Secured Notes. These costs are deferred, netting against the carrying value of the amount outstanding.

On and after April 1, 2021, CCLP may redeem all or a part of the CCLP Senior Secured Notes, from time to time, at the following redemption prices (expressed as a percentage of principal amount), plus accrued and unpaid interest thereon to, but not including, the applicable redemption date, subject to the right of holders of record on the relevant record date to receive interest due on the relevant interest payment date, if redeemed during the 12-month period beginning on April 1 of the years indicated below:

Date	Price
2021	105.625	%
2022	103.750	%
2023	101.875	%
2024	100.000	%

In addition, at any time and from time to time before April 1, 2021, CCLP may, at its option, redeem all or a portion of the CCLP Senior Secured Notesat a redemption price equal to 100% of the principal amount thereof plus the Applicable Premium (as defined in the Indenture) with respect to theCCLP Senior Secured Notesplus accrued and unpaid interest, if any, to, but not including, the applicable redemption date, subject to the rights of holders of the CCLP Senior Secured Noteson the relevant record date to receive interest due on the relevant interest payment date.

Prior to April 1, 2021, CCLP may on one or more occasions redeem up to 35% of the principal amount of the CCLP Senior Secured Noteswith an amount of cash not greater than the amount of the net cash proceeds from one or more equity offerings at a redemption price equal to 107.500% of the principal amount of theCCLP Senior Secured Notesto be redeemed, plus accrued and unpaid interest, if any, to, but not including, the date of redemption, subject to the right of holders of record on the relevant record date to receive interest due on the relevant interest payment date, provided that (a) at least 65% of the aggregate principal amount of theCCLP Senior Secured Notes originally issued on the issue date (excluding notes held by CCLP and its subsidiaries) remains outstanding after each such redemption; and (b) the redemption occurs within 180 days after the date of the closing of the equity offering.

If CCLP experiences certain kinds of changes of control, each holder of the CCLP Senior Secured Notes will be entitled to require CCLP to repurchase all or any part (equal to $2,000 or an integral multiple of $1,000 in excess of $2,000) of that holder’s CCLP Senior Secured Notes pursuant to an offer on the terms set forth in the Indenture. CCLP will offer to make a cash payment equal to 101% of the aggregate principal amount of the CCLP Senior Secured Notes repurchased plus accrued and unpaid interest, if any, on the CCLP Senior Secured Notes repurchased to the date of repurchase, subject to the rights of holders of the CCLP Senior Secured Notes on the relevant record date to receive interest due on the relevant interest payment date.

The Indenture contains customary covenants restricting CCLP's ability and the ability of CCLP restricted subsidiaries to: (i) pay distributions on, purchase or redeem CCLP common units or purchase or redeem any CCLP subordinated debt; (ii) incur or guarantee additional indebtedness or issue certain kinds of preferred equity securities; (iii) create or incur certain liens securing indebtedness; (iv) sell assets, including dispositions of the Collateral; (v) consolidate, merge or transfer all or substantially all of its assets; (vi) enter into transactions with affiliates; and (vii) enter into agreements that restrict distributions or other payments from its restricted subsidiaries to CCLP. These covenants are subject to a number of important limitations and exceptions, including certain provisions permitting CCLP, subject to the satisfaction of certain conditions, to transfer assets to certain of CCLP's unrestricted subsidiaries. Moreover, if the CCLP Senior Secured Notes receive an investment grade rating from at least two rating agencies and no default has occurred and is continuing under the Indenture, many of the restrictive covenants in the Indenture will be terminated. The Indenture also contains customary events of default and acceleration provisions relating to such events of default, which provide that upon an event of default under the Indenture, the Trustee or the holders of at least 25% in aggregate principal amount of the then outstanding CCLP Senior Secured Notesmay declare all of theCCLP Senior Secured Notesto be due and payable immediately.

On March 22, 2018, CCLP, the grantors named therein, the Trustee and U.S. Bank National Association, as the collateral trustee (the “Collateral Trustee”), entered into a collateral trust agreement (the “Collateral Trust Agreement”) pursuant to which the Collateral Trustee will receive, hold, administer, maintain, enforce and distribute the proceeds of all of its liens upon the collateral for the benefit of the current and future holders of the CCLP Senior Secured Notesand any future priority lien obligations, if any.

CCLP Bank Credit Facilities.

On March 22, 2018, in connection with the closing of the CCLP Offering, CCLP repaid all outstanding borrowings and obligations under its existing CCLP Credit Agreement with a portion of the net proceeds from the CCLP Offering, and terminated the CCLP Credit Agreement. As a result of the termination of the CCLP Credit Agreement, associated unamortized deferred financing costs of $3.5 million were charged to other (income) expense, net, during the three month period ended March 31, 2018.

On June 29, 2018, CCLP and two of its wholly owned subsidiaries (collectively the "CCLP Borrowers"), and certain of its wholly owned subsidiaries named therein as guarantors (the "CCLP New Credit Agreement Guarantors"), entered into a Loan and Security Agreement (the "CCLP New Credit Agreement") with the lenders thereto (the "Lenders"), and Bank of America, N.A., in its capacity as administrative agent, collateral agent, letter of credit issuer, and swing line lender. All of the CCLP Borrowers' obligations under the CCLP New Credit Agreement are guaranteed by certain of their existing and future domestic subsidiaries. The CCLP New Credit Agreement includes a maximum credit commitment of $50.0 million available for loans, letters of credit (with a sublimit of $25.0 million) and swingline loans (with a sublimit of $5.0 million). Such maximum credit commitment may be increased by $25.0 million in accordance with the terms and conditions of the CCLP New Credit Agreement.

The CCLP Borrowers may borrow funds under the CCLP New Credit Agreement to pay fees and expenses related to the CCLP New Credit Agreement and for the Borrower's ongoing working capital needs and for general business purposes. The revolving loans under the CCLP New Credit Agreement may be voluntarily prepaid, in whole or in part, without premium or penalty, subject to breakage or similar costs. The maturity date of the CCLP New Credit Agreement is June 29, 2023. As of June 30, 2018, no balance was outstanding under the CCLP New Credit Agreement. Because there was no outstanding balance on the CCLP New Credit Agreement, associated deferred financing costs of $1.3 million as of June 30, 2018, were classified as other assets on the accompanying consolidated balance sheet.

Borrowings under the CCLP New Credit Agreement will bear interest at a rate per annum equal to, at the option of the CCLP Borrowers, either (i) London InterBank Offered Rate (“LIBOR”) (adjusted to reflect any required bank reserves) for an interest period equal to 30, 60, 90, 180 or 360 days (as selected by the CCLP Borrowers, subject to availability and with the consent of the Lenders for 360 days) plus a margin based on average daily excess availability or (ii) a base rate plus a margin based on average daily excess availability; such base rate shall be determined by reference to the highest of (a) the prime rate of interest announced from time to time by Bank of America, N.A., (b) the Federal Funds Rate (as defined in the CCLP New Credit Agreement) rate plus 0.5% per annum and (c) LIBOR (adjusted to reflect any required bank reserves) for a 30-day interest period on such day plus 1.0% per annum. Initially, from June 29, 2018 until the delivery of the financial statements for the fiscal quarter ending December 31, 2018, LIBOR-based loans will have an applicable margin of 2.00% per annum and base-rate loans will have an applicable margin of 1.00% per annum; thereafter, the applicable margin will range between 1.75% and 2.25% per annum for LIBOR-based loans and 0.75% and 1.25% per annum for base-rate loans, according to average daily excess availability when financial statements are delivered. In addition to paying interest on outstanding principal under the CCLP New Credit Agreement, the CCLP Borrowers will be required to pay a commitment fee in respect of the unutilized commitments thereunder, initially at the rate of 0.375% per annum until the delivery of the financial statements for the fiscal quarter ending September 30, 2018 and thereafter at the applicable rate ranging from 0.250% to 0.375% per annum, paid quarterly in arrears based on utilization of the commitments under the CCLP New Credit Agreement. The CCLP Borrowers will also be required to pay a customary letter of credit fee equal to the applicable margin on revolving credit LIBOR loans and fronting fees.

The CCLP New Credit Agreement contains certain affirmative and negative covenants, including covenants that restrict the ability of the CCLP Borrowers, the CCLP New Credit Agreement Guarantors and certain of their subsidiaries to take certain actions including, among other things and subject to certain significant exceptions, the incurrence of debt, the granting of liens, the making of investments, entering into transactions with affiliates, the payment of dividends and the sale of assets. The CCLP New Credit Agreement also contains a requirement that the CCLP Borrowers comply, during certain periods, with a fixed charge coverage ratio of 1.0 to 1.0.

All obligations under the CCLP New Credit Agreement and the guarantees of those obligations are secured, subject to certain exceptions, by a first priority security interest for the benefit of the Lenders in the CCLP Borrowers’ and the CCLP New Credit Agreement Guarantors’ present and future accounts receivable, inventory and related assets and proceeds of the foregoing (the “CCLP ABL Collateral”).

XML

CCLP Series A Preferred Units CCLP Series A Preferred Units

6 Months Ended

Jun. 30, 2018

Series A Preferred Units [Abstract]

CCLP Series A Preferred Units

CCLP SERIES A CONVERTIBLE PREFERRED UNITS

During 2016, CCLP entered into Series A Preferred Unit Purchase Agreements (the “CCLP Unit Purchase Agreements”) with certain purchasers to issue and sell in two private placements (the "Initial Private Placement" and "Subsequent Private Placement," respectively) an aggregate of 6,999,126 of CSI Compressco LP Series A Convertible Preferred Units representing limited partner interests in CCLP (the “CCLP Preferred Units”) for a cash purchase price of $11.43 per CCLP Preferred Unit (the “Issue Price”), resulting in total 2016 net proceeds to CCLP, after deducting certain offering expenses, of $77.3 million. We purchased 874,891 of the CCLP Preferred Units in the Initial Private Placement at the aggregate Issue Price of $10.0 million.

We and the other holders of CCLP Preferred Units (each, a “CCLP Preferred Unitholder”) receive quarterly distributions, which are paid in kind in additional CCLP Preferred Units, equal to an annual rate of 11.00% of the Issue Price ($1.2573 per unit annualized), subject to certain adjustments. The rights of the CCLP Preferred Units include certain anti-dilution adjustments, including adjustments for economic dilution resulting from the issuance of CCLP common units in the future below a set price.

A ratable portion of the CCLP Preferred Units has been, and will continue to be, converted into CCLP common units on the eighth day of each month over a period of thirty months that began in March 2017 (each, a “Conversion Date”), subject to certain provisions of the Second Amended and Restated CCLP Partnership Agreement that may delay or accelerate all or a portion of such monthly conversions. On each Conversion Date, a portion of the CCLP Preferred Units will convert into CCLP common units representing limited partner interests in CCLP in an amount equal to, with respect to each CCLP Preferred Unitholder, the number of CCLP Preferred Units held by such CCLP Preferred Unitholder divided by the number of Conversion Dates remaining, subject to adjustment described in the Second Amended and Restated CCLP Partnership Agreement, with the conversion price (the "Conversion Price") determined by the trading prices of the common units over the prior month, among other factors, and as otherwise impacted by the existence of certain conditions related to the CCLP common units. Based on the number of CCLP Preferred Units outstanding as of June 30, 2018, the maximum aggregate number of CCLP common units that could be required to be issued pursuant to the conversion provisions of the CCLP Preferred Units is approximately 25.5 million CCLP common units; however, CCLP may, at its option, pay cash, or a combination of cash and common units, to the CCLP Preferred Unitholders instead of issuing common units on any Conversion Date, subject to certain restrictions as described in the Second Amended and Restated CCLP Partnership Agreement. The total number of CCLP Preferred Units outstanding as of June 30, 2018 was 4,458,803, of which we held 559,975.

Because the CCLP Preferred Units may be settled using a variable number of CCLP common units, the fair value of the CCLP Preferred Units, net of the units we purchased, is classified as long-term liabilities on our consolidated balance sheet in accordance with ASC 480 "Distinguishing Liabilities and Equity." The fair value of the CCLP Preferred Units as of June 30, 2018 was $45.6 million. During the three and six month period ended June 30, 2018, changes in the fair value during each period, resulted in $0.5 million being credited to earnings and $0.8 million being charged to earnings, respectively, in the accompanying consolidated statements of operations. During the three and six month period ended June 30, 2017, changes in the fair value resulted in $4.8 million being credited to earnings and $3.2 million being credited to earnings, respectively, in the accompanying consolidated statements of operations.

Based on the conversion provisions of the CCLP Preferred Units, and using the Conversion Price calculated as of June 30, 2018, the theoretical number of CCLP common units that would be issued if all of the outstanding CCLP Preferred Units were converted on June 30, 2018 on the same basis as the monthly conversions would be approximately 9.9 million CCLP common units, with an aggregate market value of $55.2 million. A $1 decrease in the Conversion Price would result in the issuance of 2.4 million additional CCLP common units pursuant to these conversion provisions.

XML

Market Risks and Derivative Hedge Contracts

6 Months Ended

Jun. 30, 2018

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Hedge Contracts

MARKET RISKS AND DERIVATIVE CONTRACTS

We are exposed to financial and market risks that affect our businesses. We have concentrations of credit risk as a result of trade receivables owed to us by companies in the energy industry. We have currency exchange rate risk exposure related to transactions denominated in foreign currencies as well as to investments in certain of our international operations. As a result of our variable rate bank credit facility, we face market risk exposure related to changes in applicable interest rates. Our financial risk management activities may at times involve, among other measures, the use of derivative financial instruments, such as swap and collar agreements, to hedge the impact of market price risk exposures.

Derivative Contracts

Foreign Currency Derivative Contracts. We and CCLP each enter into 30-day foreign currency forward derivative contracts with third parties as part of a program designed to mitigate the currency exchange rate risk exposure on selected transactions of certain foreign subsidiaries. As of June 30, 2018, we and CCLP had the following foreign currency derivative contracts outstanding relating to portions of our foreign operations:

Derivative Contracts	US Dollar Notional Amount		Traded Exchange Rate	Settlement Date
	(In Thousands)
Forward purchase Euro	$	464	1.16	7/19/2018
Forward sale pounds sterling	2,521		1.33	7/19/2018
Forward sale Canadian dollar	5,941		1.31	7/19/2018
Forward purchase Mexican peso	1,692		20.68	7/19/2018
Forward purchase Norwegian krone	985		8.12	7/19/2018
Forward sale Mexican peso	6,083		20.71	7/19/2018

Derivative Contracts	Swedish Krona Notional Amount	Traded Exchange Rate	Settlement Date
	(In Thousands)
Forward purchase Euro	27,437	10.16	7/19/2018

Under this program, we and CCLP may enter into similar derivative contracts from time to time. Although contracts pursuant to this program will serve as an economic hedge of the cash flow of our currency exchange risk exposure, they are not formally designated as hedge contracts or qualify for hedge accounting treatment. Accordingly, any change in the fair value of these derivative instruments during a period will be included in the determination of earnings for that period.

The fair values of foreign currency derivative instruments are based on quoted market values as reported to us by our counterparty (a level 2 fair value measurement). The fair values of our and CCLP's foreign currency derivative instruments as of June 30, 2018 and December 31, 2017, are as follows:

Foreign currency derivative instruments	Balance Sheet Location	Fair Value at June 30, 2018			Fair Value at December 31, 2017
		(In Thousands)
Forward purchase contracts	Current assets	$	158		$	111
Forward sale contracts	Current assets	22			130
Forward sale contracts	Current liabilities	(241		)	(255		)
Forward purchase contracts	Current liabilities	—			(113		)
Net asset (liability)		$	(61	)	$	(127	)

None of the foreign currency derivative contracts contain credit risk related contingent features that would require us to post assets or collateral for contracts that are classified as liabilities. During the three and six month periods ended June 30, 2018, we recognized $0.7 million and $0.8 millionof net gains (losses), respectively, reflected in other (income) expense, net, associated with our foreign currency derivative program. During the three and six month periods ended June 30, 2017, we recognized $0.4 million and $1.1 million of net gains (losses), respectively, reflected in other (income) expense, net, associated with our foreign currency derivative program.

XML

Equity

6 Months Ended

Jun. 30, 2018

Equity [Abstract]

Equity

EQUITY

Changes in equity for the three and six month periods ended June 30, 2018 and 2017 are as follows:

	Three Months Ended June 30,
	2018									2017
	TETRA			Non- controlling Interest			Total			TETRA			Non- controlling Interest			Total
	(In Thousands)
Beginning balance for the period	$	185,425		$	140,036		$	325,461		$	234,578		$	154,349		$	388,927
Net income (loss)	(5,965		)	(6,188		)	(12,153		)	(10,991		)	(3,628		)	(14,619		)
Foreign currency translation adjustment	(7,495		)	(1,754		)	(9,249		)	3,293			(325		)	2,968
Comprehensive Income (loss)	(13,460		)	(7,942		)	(21,402		)	(7,698		)	(3,953		)	(11,651		)
Issuance of common stock, net	2			—			2			(5		)	—			(5		)
Conversions of CCLP Series A Preferred	—			9,272			9,272			—			7,632			7,632
Distributions to CCLP public unitholders	—			(4,624		)	(4,624		)	—			(3,696		)	(3,696		)
Equity-based compensation	1,905			358			2,263			2,039			783			2,822
Treasury stock and other	86			4			90			(241		)	(61		)	(302		)
Ending balance as of June 30	$	173,958		$	137,104		$	311,062		$	228,673		$	155,054		$	383,727
	Six Months Ended June 30,
	2018									2017
	TETRA			Non- controlling Interest			Total			TETRA			Non- controlling Interest			Total
	(In Thousands)
Beginning balance for the period	$	208,080		$	144,481		$	352,561		$	233,523		$	166,943		$	400,466
Net income (loss)	(59,613		)	(15,303		)	(74,916		)	(13,454		)	(12,417		)	(25,871		)
Foreign currency translation adjustment	(5,827		)	(2,139		)	(7,966		)	5,345			(184		)	5,161
Comprehensive Income (loss)	(65,440		)	(17,442		)	(82,882		)	(8,109		)	(12,601		)	(20,710		)
Issuance of stock for business combination and other	28,117			—			28,117			(16		)	—			(16		)
Conversions of CCLP Series A Preferred	—			19,375			19,375			—			10,020			10,020
Distributions to CCLP public unitholders	—			(8,982		)	(8,982		)	—			(10,944		)	(10,944		)
Equity-based compensation	3,339			(297		)	3,042			3,552			1,739			5,291
Treasury stock and other	(138		)	(31		)	(169		)	(277		)	(103		)	(380		)
Ending balance as of June 30	$	173,958		$	137,104		$	311,062		$	228,673		$	155,054		$	383,727

Activity within the foreign currency translation adjustment account during the periods includes no reclassifications to net income (loss).

XML

Commitments and Contingencies

6 Months Ended

Jun. 30, 2018

Commitments and Contingencies Disclosure [Abstract]

Commitments and Contingencies

COMMITMENTS AND CONTINGENCIES

Litigation

We are named defendants in several lawsuits and respondents in certain governmental proceedings arising in the ordinary course of business. While the outcome of lawsuits or other proceedings against us cannot be predicted with certainty, management does not consider it reasonably possible that a loss resulting from such lawsuits or other proceedings in excess of any amounts accrued has been incurred that is expected to have a material adverse impact on our financial condition, results of operations, or liquidity.

On March 18, 2011, we filed a lawsuit in the Circuit Court of Union County, Arkansas, asserting claims of professional negligence, breach of contract and other claims against the engineering firm we hired for engineering design, equipment, procurement, advisory, testing and startup services for our El Dorado, Arkansas chemical production facility. The engineering firm disputed our claims and promptly filed a motion to compel the matter to arbitration. After a lengthy procedural dispute in Arkansas state court, arbitration proceedings were initiated on November 15, 2013. Ultimately, on December 16, 2016, the arbitration panel ruled in our favor, declared us as the prevailing party, and awarded us a total net amount of $12.8 million. We received full payment of the $12.8 million final award on January 5, 2017, and this amount was credited to earnings in the accompanying consolidated statement of operations for the six months ended June 30, 2017.

Other Contingencies

During 2011, in connection with the sale of a significant majority of Maritech's oil and gas producing properties, the buyers of the properties assumed the associated decommissioning liabilities pursuant to the purchase and sale agreements. In March 2018, we closed the Maritech Asset Purchase Agreement with Orinoco that provided for the purchase by Orinoco of the Maritech Properties. Also in March 2018, we finalized the Maritech Equity Purchase Agreement with Orinoco that provided for the purchase by Orinoco of the Maritech Equity Interests. As a result of these transactions, we have effectively exited the businesses of our Offshore Services and Maritech segments and Orinoco has assumed all of Maritech's remaining abandonment and decommissioning obligations. For further discussion of the sale of the Maritech Properties, see Note B - "Acquisitions and Dispositions."

XML

Industry Segments

6 Months Ended

Jun. 30, 2018

Segment Reporting [Abstract]

Industry Segments

INDUSTRY SEGMENTS

Following the transactions closed during the three month period ended March 31, 2018, we reorganized our reporting segments and now manage our operations through three Divisions: Completion Fluids & Products, Water & Flowback Services, and Compression. Our Completion Fluids & Products Division was previously reported as our Fluids Division, and included our water management services operations. Following the acquisition of SwiftWater in February 2018, our expanded water management operations are now included with our production testing operations as part of our Water & Flowback Services Division. The operations of our previous Offshore Division, consisting of our previous Offshore Services and Maritech segments, are now reported as discontinued operations following their disposal in March 2018.

Our Completion Fluids & Products Division manufactures and markets clear brine fluids, additives, and associated products and services to the oil and gas industry for use in well drilling, completion, and workover operations in the United States and in certain countries in Latin America, Europe, Asia, the Middle East, and Africa. The division also markets liquid and dry calcium chloride products manufactured at its production facilities or purchased from third-party suppliers to a variety of markets outside the energy industry.

Our Water & Flowback Services Division provides domestic onshore oil and gas operators with comprehensive water management services. The division also provides frac flowback, production well testing, offshore rig cooling, and other associated services in many of the major oil and gas producing regions in the United States, Mexico, and Canada, as well as in basins in certain regions in South America, Africa, Europe, the Middle East, and Australia.

The Compression Division is a provider of compression services and equipment for natural gas and oil production, gathering, transportation, processing, and storage. The Compression Division's equipment sales business includes the fabrication and sale of standard compressor packages, custom-designed compressor packages, and oilfield pump systems designed and fabricated at the division's facilities. The Compression Division's aftermarket services business provides compressor package reconfiguration and maintenance services as well as providing compressor package parts and components manufactured by third-party suppliers. The Compression Division provides its services and equipment to a broad base of natural gas and oil exploration and production, midstream, transmission, and storage companies operating throughout many of the onshore producing regions of the United States as well as in a number of foreign countries, including Mexico, Canada, and Argentina.

We generally evaluate the performance of and allocate resources to our segments based on profit or loss from their operations before income taxes and nonrecurring charges, return on investment, and other criteria. Transfers between segments and geographic areas are priced at the estimated fair value of the products or services as negotiated between the operating units. “Corporate overhead” includes corporate general and administrative expenses, corporate depreciation and amortization, interest income and expense, and other income and expense.

 Summarized financial information concerning the business segments is as follows:

	Three Months Ended   June 30,						Six Months Ended   June 30,
	2018			2017			2018			2017
	(In Thousands)
Revenues from external customers
Product sales
Completion Fluids & Products Division	$	72,287		$	67,308		$	123,344		$	119,519
Water & Flowback Services Division	—			145			676			6,258
Compression Division	35,400			18,727			59,046			28,381
Consolidated	$	107,687		$	86,180		$	183,066		$	154,158
Services
Completion Fluids & Products Division	$	4,268		$	6,687		$	6,317		$	10,703
Water & Flowback Services Division	83,593			30,479			143,770			61,989
Compression Division	64,524			56,585			126,300			112,490
Consolidated	$	152,385		$	93,751		$	276,387		$	185,182
Interdivision revenues
Completion Fluids & Products Division	$	1		$	—		$	(1	)	$	1
Water & Flowback Services Division	53			462			275			1,018
Compression Division	—			—			—
Interdivision eliminations	(54		)	(462		)	(274		)	(1,019		)
Consolidated	$	—		$	—		$	—		$	—

Total revenues
Completion Fluids & Products Division	$	76,556		$	73,995		$	129,660		$	130,223
Water & Flowback Services Division	83,646			31,086			144,721			69,265
Compression Division	99,924			75,312			185,346			140,871
Interdivision eliminations	(54		)	(462		)	(274		)	(1,019		)
Consolidated	$	260,072		$	179,931		$	459,453		$	339,340
Income (loss) before taxes
Completion Fluids & Products Division	$	9,981		$	16,616		$	12,430		$	36,088
Water & Flowback Services Division	8,311			(3,920		)	14,859			(5,186		)
Compression Division	(8,655		)	(6,180		)	(22,673		)	(20,513		)
Interdivision eliminations	4			4			4			(161		)
Corporate Overhead(1)	(19,327		)	(11,169		)	(34,239		)	(19,041		)
Consolidated	$	(9,686	)	$	(4,649	)	$	(29,619	)	$	(8,813	)

	June 30, 2018			December 31, 2017
	(In Thousands)
Total assets
Completion Fluids & Products Division	$	303,396		$	293,507
Water & Flowback Services Division	228,368			139,771
Compression Division	880,385			784,745
Corporate Overhead and eliminations	(34,068		)	(30,543		)
Assets of discontinued operations	1,538			121,134
Consolidated	$	1,379,619		$	1,308,614

(1) Amounts reflected include the following general corporate expenses:

	Three Months Ended   June 30,					Six Months Ended   June 30,
	2018		2017			2018		2017
	(In Thousands)
General and administrative expense	$	11,871	$	12,051		$	24,469	$	21,606
Depreciation and amortization	164		118			315		209
Interest expense	4,877		4,240			8,884		8,014
Warrants fair value adjustment (income)/expense	2,195		(5,545		)	201		(11,521		)
Other general corporate (income) expense, net	220		305			370		733
Total	$	19,327	$	11,169		$	34,239	$	19,041

XML

Revenue from Contracts with Customers (Notes)

6 Months Ended

Jun. 30, 2018

Revenue from Contract with Customer [Abstract]

Revenue from Contract with Customer [Text Block]

REVENUE FROM CONTRACTS WITH CUSTOMERS

Performance Obligations.Revenue is recognized when performance obligations under the terms of a contract with our customer are satisfied. Generally this occurs with the transfer of control of our products or services to our customers. Revenue is measured as the amount of consideration we expect to receive in exchange for transferring products or providing services to our customers. For a general discussion of the nature of the goods and services that we provide, see Note I - "Industry Segments."

Product Sales. Product sales revenues are recognized at a point in time when we transfer control of our product offerings to our customers, generally when we ship products from our facility to our customer. The product sales for our Completion Fluid & Products Division consist primarily of clear brine fluids, additives, and associated manufactured products. Product sales for our Water & Flowback Services Division are typically attributed to specific performance obligations within certain production testing service arrangements. Parts and equipment sales comprise the product sales for the Compression Division.

Services. Service revenues represent revenue recognized over time, as our customer arrangements typically provide agreed upon day-rates (monthly service rates for compression services) and we recognize service revenue based upon the number of days services have been performed. Service revenue recognized over time is associated with a majority of our Water & Flowback Services Division arrangements, compression service and aftermarket service contracts within our Compression Division, and a small portion of Completion Fluids & Products Division revenue that is associated with completion fluid service arrangements. With the exception of the initial terms of the compression services contracts for medium- and high-horsepower compressor packages of our Compression Division, our customer contracts are generally for terms of one year or less. The majority of the service arrangements in the Water & Flowback Services Division are for a period of 90 days or less. Within our Compression Division service revenue,most aftermarket service revenues are recognized at a point in time when we transfer control of our products and complete the delivery of services to our customers.

We receive cash equal to the invoice price for most product sales and services and payment terms typically range from 30 to 60 days from the date we invoice our customer. Since the period between when we deliver products or services and when the customer pays for products or services are not expected to exceed one year, we have elected not to calculate or disclose a financing component for our customer contracts.

Depending on the terms of the arrangement, we may also defer the recognition of revenue for a portion of the consideration received because we have to satisfy a future performance obligation. For example, consideration received from customers during the fabrication of new compressor packages is typically deferred until control of the compressor package is transferred to our customer. For any arrangements with multiple performance obligations, we use management's estimated selling price to determine the stand-alone selling price for separate performance obligations. For revenue associated with mobilization of service equipment as part of a service contract arrangement, such revenue, if significant, is deferred and amortized over the estimated service period. As of June 30, 2018, we had$6.4 millionof remaining performance obligations related to our compression service contracts. As a practical expedient, this amount does not reflect revenue for compression service contracts whose original expected duration is less than 12 months and does not consider the effects of the time value of money. The remaining performance obligations are expected to be recognized through 2022 as follows (in thousands):

	2018		2019		2020		2021		2022		Total
	(In Thousands)
Compression service contracts remaining performance obligations	$	1,791	$	3,209	$	1,027	$	253	$	77	$	6,357

Sales taxes, value added taxes, and other taxes we collect concurrent with revenue-producing activities are excluded from revenue. We have elected to recognize the cost for freight and shipping costs as part of cost of product sales when control over our products (i.e. delivery) has transferred to the customer.

Use of Estimates. Contracts where the amount of revenue that will ultimately be realized is subject to uncertainties not fully known as of the time revenue is recognized are known as variable consideration arrangements. In recognizing revenue for these arrangements, the amount of variable consideration recognized is limited so that it is probable that significant amounts of revenues will not be reversed in future periods when the uncertainty is resolved. For products returned by the customer, we estimate the expected returns based on an analysis of historical experience. For volume discounts earned by the customer, we estimate the discount (if any) based on our estimate of the total expected volume of products sold or services to be provided to the customer during the discount period. In certain contracts for the sale of clear brine fluids, we may agree to issue credits for the repurchase of reclaimable used fluids from certain customers at an agreed price that is based on the condition of the fluids. For sales of clear brine fluids, we adjust the revenue recognized in the period of shipment by the estimated amount of the credit expected to be issued to the customer, and this estimate is based on historical experience. As ofJune 30, 2018, the amount of remaining credits expected to be issued for the repurchase of reclaimable used fluids was$1.1 millionthat were recorded in inventory (right of return asset) and accounts payable. There were no material differences between amounts recognized during the three month period ended June 30, 2018, compared to estimates made in a prior period from these variable consideration arrangements.

Contract Assets and Liabilities.Contract assets arise when we transfer products or perform services in fulfillment of a contract obligation but must perform other performance obligations before being entitled to payment. Generally, once we have transferred products or performed services for the customer pursuant to a contract, we recognize revenue and trade accounts receivable, as we are entitled to payment that is unconditional. Any contract assets, along with billed and unbilled accounts receivable, are included in Trade Accounts Receivable in our consolidated balance sheets.Contract liabilities arise when we receive consideration, or consideration is unconditionally due, from a customer prior to transferring products or services to the customer under the terms of a sales contract. We classify contract liabilities as Unearned Income in our consolidated balance sheets. Such deferred revenue typically results from advance payments received on sales of compressor equipment prior to when it is completed and transferred to the customer in accordance with the customer contract.

As of June 30, 2018 and December 31, 2017, contract assets were immaterial. The following table reflects the changes in our contract liabilities during the six month period ended June 30, 2018:

	June 30, 2018
	(In Thousands)
Unearned Income, beginning of period	$	17,050
Additional unearned income	59,360
Revenue recognized	(47,276		)
Unearned income, end of period	$	29,134

Bad debt expense on accounts receivables and contract assets was $0.1 million and $0.3 million during thethree and sixmonth periods endedJune 30, 2018, respectively, and$0.3 millionand$0.9 millionduring thethree and sixmonth periods endedJune 30, 2017, respectively. During the three month period endedJune 30, 2018, contract liabilities increased due to unearned income for consideration received on new compressor equipment being fabricated. During thesixmonth period endedJune 30, 2018,$47.3 million of unearned income was recognized as product sales revenue, primarily associated with deliveries of compression equipment.

Contract Costs. When costs are incurred to obtain contracts, such as professional fees and sales bonuses, such costs are deferred and amortized over the expected period of benefit. Costs of mobilizing service equipment necessary to perform under service contracts, if significant, are deferred and amortized over the estimated service period, which is generally a few weeks. As of June 30, 2018, such contract costs were immaterial. Where applicable, we establish provisions for estimated obligations pursuant to product warranties by accruing for estimated future product warranty cost in the period of the product sale. Such estimates are based on historical warranty loss experience. Major components of fabricated compressor packages have manufacturer warranties that we pass through to the customer.

Disaggregation of Revenue. We disaggregate revenue from contracts with customers into Product Sales and Services within each segment, as noted in our three reportable segments in Note I. In addition, we disaggregate revenue from contracts with customers by geography based on the following table below.

	Three months ended June 30,				Six months ended June 30,
	2018		2017		2018		2017
	(In Thousands)
Completion Fluids & Products
U.S.	34,112		40,870		62,020		81,672
International	42,444		33,125		67,640		48,551
	76,556		73,995		129,660		130,223
Water & Flowback Services
U.S.	70,838		24,277		117,877		48,417
International	12,808		6,809		26,844		20,848
	83,646		31,086		144,721		69,265
Compression
U.S.	90,927		68,887		167,907		126,856
International	8,997		6,425		17,439		14,015
	99,924		75,312		185,346		140,871
Interdivision eliminations
U.S.	—		—		1		(1	)
International	(54	)	(462	)	(275	)	(1,018	)
	(54	)	(462	)	(274	)	(1,019	)
Total Revenue
U.S.	195,877		134,034		347,805		256,944
International	64,195		45,897		111,648		82,396
	260,072		179,931		459,453		339,340

XML

Basis of Presentation and Significant Accounting Policies (Policies)

6 Months Ended

Jun. 30, 2018

Accounting Policies [Abstract]

Asset Retirement Obligation [Policy Text Block]

Asset Retirement Obligations

We operate facilities in various U.S. and foreign locations that are used in the manufacture, storage, and sale of our products, inventories, and equipment. These facilities are a combination of owned and leased assets. We are required to take certain actions in connection with the retirement of these assets. The values of our asset retirement obligations for these properties were $12.1 million and $11.7 million as of June 30, 2018 and December 31, 2017, respectively. Asset retirement obligations are recorded in accordance with Financial Accounting Standards Board ("FASB") Accounting Standards Codification ("ASC") 410, "Asset Retirement and Environmental Obligations," whereby the estimated fair value of a liability for asset retirement obligations is recognized in the period in which it is incurred and in which a reasonable estimate can be made. Such estimates are based on relevant assumptions that we believe are reasonable. We have reviewed our obligations in this regard in detail and estimated the cost of these actions. The associated asset retirement costs are capitalized as part of the carrying amount of these long-lived assets and are depreciated on a straight-line basis over the life of the assets.

The changes in the values of our asset retirement obligations during the three and six month period ended June 30, 2018, are as follows:

	Three Months Ended June 30, 2018			Six Months Ended June 30, 2018
	(In Thousands)
Beginning balance for the period, as reported	$	11,929		$	11,738
Activity in the period:
Accretion of liability	150			309
Revisions in estimated cash flows	(6		)	26
Ending balance	$	12,073		$	12,073

We review the adequacy of our asset retirement obligation liabilities whenever indicators suggest that the estimated cash flows underlying the liabilities have changed.

Principles of consolidation policy

Our consolidated financial statements include the accounts of our wholly owned subsidiaries. All intercompany accounts and transactions have been eliminated in consolidation. The information furnished reflects all normal recurring adjustments, which are, in the opinion of management, necessary to provide a fair statement of the results for the interim periods. Operating results for the period ended June 30, 2018 are not necessarily indicative of results that may be expected for the twelve months ended December 31, 2018.

We consolidate the financial statements of CSI Compressco LP and its subsidiaries ("CCLP") as part of our Compression Division, as we determined that CCLP is a variable interest entity and we are the primary beneficiary. We control the financial interests of CCLP and have the ability to direct the activities of CCLP that most significantly impact its economic performance through our ownership of its general partner. The share of CCLP net assets and earnings that is not owned by us is presented as noncontrolling interest in our consolidated financial statements. Our cash flows from our investment in CCLP are limited to the quarterly distributions we receive on our CCLP common units and general partner interest (including incentive distribution rights) and the amounts collected for services we perform on behalf of CCLP, as TETRA's capital structure and CCLP's capital structure are separate, and do not include cross default provisions, cross collateralization provisions, or cross guarantees.

The accompanying unaudited consolidated financial statements have been prepared in accordance with Rule 10-01 of Regulation S-X for interim financial statements required to be filed with the Securities and Exchange Commission ("SEC") and do not include all information and footnotes required by generally accepted accounting principles for complete financial statements. These financial statements should be read in connection with the financial statements for the year ended December 31, 2017, and notes thereto included in our Annual Report on Form 10-K, whichwe filed with the SEC on March 5, 2018.

Reclassifications policy

Reclassifications

Certain previously reported financial information has been reclassified to conform to the current period’s presentation. For a discussion of the reclassification of the financial presentation of our Offshore Division as discontinued operations, see Note C - "Discontinued Operations."

Use of estimates policy

Use of Estimates

The preparation of financial statements in conformity with U.S. generally accepted accounting principles ("GAAP") requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclose contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues, expenses, and impairments during the reporting period. Actual results could differ from those estimates, and such differences could bematerial.

Reclassification, Policy [Policy Text Block]

Reclassifications

Certain previously reported financial information has been reclassified to conform to the current period’s presentation.

Cash and cash equivalents policy

Cash Equivalents

We consider all highly liquid cash investments with a maturity of three months or less when purchased to be cash equivalents.

Restricted cash policy

Restricted Cash

Restricted cash is classified as a current asset when it is expected to be repaid or settled in the next twelve month period.

Inventories policy

Inventories

Inventories are stated at the lower of cost or net realizable value. Except for work in progress inventory discussed below, cost is determined using the weighted average method. Components of inventories as of June 30, 2018 and December 31, 2017 are as follows: 

	June 30, 2018		December 31, 2017
	(In Thousands)
Finished goods	$	60,011	$	66,377
Raw materials	3,934		4,027
Parts and supplies	44,585		33,632
Work in progress	24,837		11,402
Total inventories	$	133,367	$	115,438

Finished goods inventories include newly manufactured clear brine fluids as well as used brines that are repurchased from certain customers for recycling. Recycled brines are recorded at cost, using the weighted average method. Work in progress inventory consists primarily of new compressor packages located in the CCLP fabrication facility in Midland, Texas. The cost of work in progress is determined using the specific identification method. We write down the value of inventory by an amount equal to the difference between its cost and its estimated net realizable value.

Weighted Average Shares Outstanding Table

The following is a reconciliation of the weighted average number of common shares outstanding with the number of shares used in the computations of net income (loss) per common and common equivalent share:

	Three Months Ended   June 30,		Six Months Ended   June 30,
	2018	2017	2018	2017
	(In Thousands)
Number of weighted average common shares outstanding	122,474	114,534	125,553	114,375
Assumed exercise of equity awards and warrants	—	—	—	—
Average diluted shares outstanding	122,474	114,534	125,553	114,375

Foreign currency translation policy

Foreign Currency Translation

We have designated the euro, the British pound, the Norwegian krone, the Canadian dollar, theBrazilian real, the Argentine peso, and theMexican peso, as the functional currencies for our operations in Finland and Sweden, the United Kingdom, Norway, Canada, Brazil, Argentina,and certain of our operations in Mexico, respectively. The U.S. dollar is the designated functional currency for all of our other foreign operations. The cumulative translation effects of translating the applicable accounts from the functional currencies into the U.S. dollar at current exchange rates are included as a separate component ofequity. Foreign currency exchange (gains) and losses are included in other (income) expense, net and totaled $0.6 million and $(0.3) millionduring the three and six month periods ended June 30, 2018 and $0.6 million and $1.2 million during the three and six month periods ended June 30, 2017, respectively.

On June 30, 2018, we determined the economy in Argentina to be highly inflationary. As a result of this determination, beginning July 1, 2018, our reporting of our operations in Argentina will reflect the remeasurement of the functional currency from the Argentine peso to the U.S. dollar.

Income taxes policy

Income Taxes

Our consolidated provision for income taxes during the first six months of 2017 and 2018 is primarily attributable to taxes in certain foreign jurisdictions and Texas gross margin taxes. Our consolidated effective tax rate for the six month period ended June 30, 2018 of negative 12.1% was primarily the result of losses generated in entities for which no related tax benefit has been recorded. The losses generated by these entities do not result in tax benefits due to offsetting valuation allowances being recorded against the related net deferred tax assets. We establish a valuation allowance to reduce the deferred tax assets when it is more likely than not that some portion or all of the deferred tax assets will not be realized. Included in our deferred tax assets are net operating loss carryforwards and tax credits that are available to offset future income tax liabilities in the U.S. as well as in certain foreign jurisdictions.

The Tax Cuts and Jobs Act (the “Act”) was enacted on December 22, 2017. At June 30, 2018 and December 31, 2017, we had not completed our accounting for the tax effects of enactment of the Act; however, in certain cases, as described below, we made reasonable estimates of the effects and recorded provisional amounts. We will continue to make and refine our calculations as additional analysis is completed. The accounting for the tax effects of the Act will be completed in 2018 as provided by the U.S. Securities and Exchange Commission’s SAB No. 118, Income Tax Accounting Implications of the Tax Cuts and Jobs Act. We recognized an income tax expense of $54.1 million in the fourth quarter of 2017 associated with the impact of the Act, which was fully offset by a decrease in the valuation allowance previously recorded on our net deferred tax assets. As such, the Act resulted in no net tax expense in the fourth quarter of 2017. We have considered in our estimated annual effective tax rate for 2018, the impact of the statutory changes enacted by the Act, including reasonable estimates of those provisions effective for the 2018 tax year. Our estimate on Global Intangible Low Taxed Income (“GILTI”), Foreign Derived Intangible Income (“FDII”), Base Erosion and Anti-Abuse Tax (“BEAT”), and IRC Section 163(j) interest limitation do not impact our effective tax rate for the three and six month periods ended June 30, 2018.

Fair value measurements policy

Fair Value Measurements

Fair value is defined as “the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date” within an entity’s principal market, if any. The principal market is the market in which the reporting entity would sell the asset or transfer the liability with the greatest volume and level of activity, regardless of whether it is the market in which the entity will ultimately transact for a particular asset or liability or if a different market is potentially more advantageous. Accordingly, this exit price concept may result in a fair value that may differ from the transaction price or market price of the asset or liability.

Under U.S. generally accepted accounting principles ("GAAP"), the fair value hierarchy prioritizes inputs to valuation techniques used to measure fair value. Fair value measurements should maximize the use of observable inputs and minimize the use of unobservable inputs, where possible. Observable inputs are developed based on market data obtained from sources independent of the reporting entity. Unobservable inputs may be needed to measure fair value in situations where there is little or no market activity for the asset or liability at the measurement date and are developed based on the best information available in the circumstances, which could include the reporting entity’s own judgments about the assumptions market participants would utilize in pricing the asset or liability.

We utilize fair value measurements to account for certain items and account balances within our consolidated financial statements. Fair value measurements are utilized on a recurring basis in the determination of the carrying values of the liabilities for the warrants to purchase 11.2 million shares of our common stock (the "Warrants") and the CCLP Preferred Units (as herein defined). We also utilize fair value measurements on a recurring basis in the accounting for our foreign currency derivative contracts. For these fair value measurements, we utilize the quoted value as determined by our counterparty financial institution (a level 2 fair value measurement). Fair value measurements are also utilized on a nonrecurring basis in certain circumstances, such as in the allocation of purchase consideration for acquisition transactions to the assets and liabilities acquired, including intangible assets and goodwill (a level 3 fair value measurement), the initial recording of our asset retirement obligations, and for the impairment of long-lived assets, including goodwill (a level 3 fair value measurement). The fair values of certain of our financial instruments, which include cash, restricted cash, accounts receivable, accounts payable, short-term borrowings, and long-term debt pursuant to our bank credit agreement, approximate their carrying amounts. The aggregate fair values of our long-term 11% Senior Note at June 30, 2018 and December 31, 2017, were approximately $128.2 million and $130.8 million, respectively, based on current interest rates on those dates, which were different from the stated interest rate on the 11% Senior Note. Those fair values compare to the face amount of the 11% Senior Note of $125.0 million both at June 30, 2018 and December 31, 2017. The fair values of the publicly traded CCLP 7.25% Senior Notes (as herein defined) at June 30, 2018 and December 31, 2017, were approximately $271.5 million and $279.7 million, respectively. Those fair values compare to the face amount of $295.9 million both at June 30, 2018 and December 31, 2017. The fair value of the publicly traded CCLP 7.50% Senior Secured Notes at June 30, 2018 was approximately $351.8 million. This fair value compares to aggregate principal amount of such notes at June 30, 2018 of $350.0 million. We calculated the fair values of our 11% Senior Note as of June 30, 2018 and December 31, 2017 internally, using current market conditions and average cost of debt (a level 2 fair value measurement). We based the fair values of the CCLP 7.25% Senior Notes and the CCLP 7.50% Senior Secured Notes as of June 30, 2018 on recent trades for these notes (a level 1 fair value measurement). See Note D - "Long-Term Debt and Other Borrowings," for further discussion.

The CCLP Preferred Units are valued using a lattice modeling technique that, among a number of lattice structures, includes significant unobservable items (a Level 3 fair value measurement). These unobservable items include (i) the volatility of the trading price of CCLP's common units compared to a volatility analysis of equity prices of CCLP's comparable peer companies, (ii) a yield analysis that utilizes market information related to the debt yields of comparable peer companies, and (iii) a future conversion price analysis. The fair valuation of the CCLP Preferred Units liability is increased by, among other factors, projected increases in CCLP's common unit price and by increases in the volatility and decreases in the debt yields of CCLP's comparable peer companies. Increases (or decreases) in the fair value of CCLP Preferred Units will increase (decrease) the associated liability and result in future adjustments to earnings for the associated valuation losses (gains). During the three and six month periods ended June 30, 2018, the changes in the fair value of the CCLP Preferred Units resulted in $0.5 million being credited to earnings and $0.8 millioncharged to earnings, respectively, in the consolidated statement of operations.

The Warrants are valued either by using their traded market prices (a level 1 fair value measurement) or, for periods when market prices are not available, by using the Black Scholes option valuation model that includes estimates of the volatility of the Warrants implied by their trading prices (a level 3 fair value measurement). As of June 30, 2018and December 31, 2017, the fair valuation methodology utilized for the Warrants was a level 3 fair value measurement, as there were no available traded market prices to value the Warrants. The fair valuation of the Warrants liability is increased by, among other factors, increases in our common stock price, and by increases in the volatility of our common stock price. Increases (or decreases) in the fair value of the Warrants will increase (decrease) the associated liability and result in future adjustments to earnings for the associated valuation losses (gains). During the three and six month periods ended June 30, 2018, the changes in the fair value of the Warrants liability resulted in $2.2 million being charged to earnings and $0.2 million being charged to earnings, respectively, in the consolidated statement of operations.

During the third quarter of 2017 and the first quarter of 2018, we issued stand-alone, cash-settled stock appreciation rights awards to an executive officer. These awards are valued by using the Black Scholes option valuation model and such fair value is recognized based on the portion of the requisite service period satisfied as of each valuation date. The fair valuation of the stock appreciation rights liability is increased by, among other factors, increases in our common stock price, and by increases in the volatility of our common stock price. These stock appreciation rights awards are reflected as an accrued liability in our consolidated balance sheet. Increases (or decreases) in the fair value of the stock appreciation rights awards will increase (decrease) the associated liability and result in future adjustments to earnings for the associated valuation losses (gains). During the six months ended June 30, 2018, the fair value of the stock appreciation rights increased $0.2 million, which was charged to earnings in the consolidated statement of operations.

A summary of these fair value measurements as of June 30, 2018 and December 31, 2017, is as follows:

				Fair Value Measurements Using
	Total as of			Quoted Prices in Active Markets for Identical Assets or Liabilities		Significant Other Observable Inputs			Significant Unobservable Inputs
Description	June 30, 2018			(Level 1)		(Level 2)			(Level 3)
	(In Thousands)
CCLP Series A Preferred Units	$	(45,644	)	$	—	$	—		$	(45,644	)
Warrants liability	(13,403		)	—		—			(13,403		)
Cash-settled stock appreciation rights	(287		)	—		—			(287		)
Asset for foreign currency derivative contracts	180			—		180			—
Liability for foreign currency derivative contracts	(241		)	—		(241		)	—
Net liability	$	(59,395	)

				Fair Value Measurements Using
	Total as of			Quoted Prices in Active Markets for Identical Assets or Liabilities		Significant Other Observable Inputs			Significant Unobservable Inputs
Description	December 31, 2017			(Level 1)		(Level 2)			(Level 3)
	(In Thousands)
CCLP Series A Preferred Units	$	(61,436	)	$	—	$	—		$	(61,436	)
Warrants liability	(13,202		)	—		—			(13,202		)
Cash-settled stock appreciation rights	(97		)	—		—			(97		)
Asset for foreign currency derivative contracts	241			—		241			—
Liability for foreign currency derivative contracts	(368		)	—		(378		)	—
Net liability	$	(74,862	)

New Accounting Pronouncements policy

New Accounting Pronouncements

In May 2014, the Financial Accounting Standards Board ("FASB") issued Accounting Standards Update ("ASU") 2014-09, "Revenue from Contracts with Customers." This ASU supersedes the revenue recognition requirements in Accounting Standards Codification ("ASC") 605, "Revenue Recognition," and most industry-specific guidance. This ASU is effective for annual periods beginning after December 15, 2017, and interim periods within those years, under either full or modified retrospective adoption.

On January 1, 2018, we adopted ASU 2014-09 and all related amendments ("ASU 2014-09"). We utilized the modified retrospective method of adoption. Comparative information has not been restated and continues to be reported under the accounting standards in effect for those periods.

The core principle of ASU 2014-09 is that an entity should recognize revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. ASU 2014-09 also provides a five-step model for determining revenue recognition for arrangements that are within the scope of the standard: (i) identify the contract(s) with a customer; (ii) identify the performance obligations in the contract; (iii) determine the transaction price; (iv) allocate the transaction price to the performance obligations in the contract; and (v) recognize revenue when (or as) the entity satisfies a performance obligation. We only apply the five-step model to contracts when it is probable that we will collect the consideration we are entitled to in exchange for the goods or services we transfer to the customer. At contract inception, once the contract is determined to be within the scope of ASU 2014-09, we assess the goods or services promised within each contract and determine those that are performance obligations and assess whether each promised good or service is distinct. We then recognize as revenue the amount of the transaction price that is allocated to the respective performance obligation when (or as) the performance obligation is satisfied. For a complete discussion of accounting for revenues, see Note J - Revenue from Contracts with Customers.

The impact from the adoption of ASU 2014-09 to our January 1, 2018 consolidated balance sheet, our June 30, 2018 consolidated balance sheet, and our consolidated results of operations for the three and six month periods ended June 30, 2018 was immaterial. The adoption of ASU 2014-09 had no impact to cash provided by operating, financing, or investing activities in our consolidated statement of cash flows. We do not expect the adoption of the new revenue standard to have a material impact to our net income on an ongoing basis.

In February 2016, the FASB issued ASU 2016-02, "Leases" (Topic 842) to increase comparability and transparency among different organizations. Organizations are required to recognize right-of-use lease assets and lease liabilities on the balance sheet related to the right to use the underlying asset for the lease term.In addition, through improved disclosure requirements, the ASU will enable users of financial statements to further understand the amount, timing, and uncertainty of cash flows arising from leases. We are currently assessing the potential effects of these changes to our consolidated financial statements. Our current operating lease portfolio consists primarily of real estate, vehicles, and equipment leases. Based on our preliminary assessment, upon adoption of the ASU, we will record significant right-to-use assets and lease obligations pursuant to the new requirements. We are evaluating our portfolio of existing leases for consideration of the accounting impact of each lease. We are also evaluating and are developing internal policies to address the requirements under this ASU.

In June 2016, the FASB issued ASU 2016-13, "Financial Instruments - Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments." ASU 2016-13 amends the impairment model to utilize an expected loss methodology in place of the currently used incurred loss methodology, which will result in more timely recognition of losses. ASU 2016-13, which has an effective date of the first quarter of fiscal 2022, also applies to employee benefit plan accounting. We are currently assessing the potential effects of these changes to our consolidated financial statements and employee benefit plan accounting.

In August 2016, the FASB issued ASU 2016-15, "Statement of Cash Flows (Topic 230): Classification of Certain Cash Receipts and Cash Payments" to reduce diversity in practice in classification of certain transactions in the statement of cash flows. The ASU is effective for annual periods beginning after December 15, 2017, and interim periods within those annual periods, with early adoption permitted, under a retrospective transition adoption. We adopted this ASU during the three month period ended March 31, 2018, with no material impact to our consolidated financial statements.

In November 2016, the FASB issued ASU 2016-16, "Intra-Entity Transfers of Assets Other Than Inventory" which requires companies to account for the income tax effects of intercompany transfers of assets other than inventory when the transfer occurs. We adopted this ASU during the three month period ended March 31, 2018. The adoption of this standard did not have a material impact to our consolidated financial statements due to a previously recorded valuation allowance on our net deferred tax assets.

Additionally, in November 2016, the FASB issued ASU 2016-18, "Statement of Cash Flows (Topic 230): Restricted Cash" to reduce diversity in the presentation of restricted cash and restricted cash equivalents in the statement of cash flows. We adopted this ASU during the three month period ended March 31, 2018, resulting in restricted cash being classified with cash and cash equivalents in our consolidated statement of cash flows.

In January 2017, the FASB issued ASU 2017-04, "Intangibles-Goodwill and Other (Topic 350): Simplifying the Test for Goodwill Impairment" which simplifies how an entity is required to test goodwill for impairment by eliminating Step 2 from the goodwill impairment test. The ASU is effective for annual periods beginning after December 15, 2020, and interim periods within those annual periods, with early adoption permitted, under a prospective adoption. We do not expect the adoption of this standard to have a material impact on our consolidated financial statements.

In May 2017, the FASB issued ASU 2017-09, "Compensation-Stock Compensation (Topic 718): Scope of Modification Accounting" to clarify when to account for a change to the terms or conditions of a share-based payment award as a modification. We adopted this ASU during the three month period ended March 31, 2018, with no material impact to our consolidated financial statements.

In July 2017, the FASB issued ASU 2017-11, "Earnings Per Share (Topic 260); Distinguishing Liabilities from Equity (Topic 480); Derivatives and Hedging (Topic 815): (Part I) Accounting for Certain Financial Instruments with Down Round Features, (Part II) Replacement of the Indefinite Deferral for Mandatorily Redeemable Financial Instruments of Certain Nonpublic Entities and Certain Mandatorily Redeemable Noncontrolling Interests with a Scope Exception" to consider “down round” features when determining whether certain equity-linked financial instruments or embedded features are indexed to an entity’s own stock. Entities that present EPS under ASC 260 will recognize the effect of a down round feature in a freestanding equity-classified financial instrument only when it is triggered. The effect of triggering such a feature will be recognized as a dividend and a reduction to income available to common shareholders in basic EPS. The ASU is effective for annual periods beginning after December 15, 2018, and interim periods within those annual periods. We are currently assessing the potential effects of these changes to our consolidated financial statements.

In August 2017, the FASB issued ASU 2017-12, "Derivatives and Hedging (Topic 815): Targeted Improvements to Accounting for Hedging Activities" to change how companies account for and disclose hedges. The ASU is effective for annual periods beginning after December 15, 2018, and interim periods within those annual periods. We are currently assessing the potential effects of these changes to our consolidated financial statements.

In June 2018, the FASB issued ASU 2018-07, “Compensation-Stock Compensation (Topic 718): Improvements to Nonemployee Share-Based Payment Accounting” to align the measurement and classification guidance for share-based payments to nonemployees with the guidance currently applied to employees, with certain exceptions. The ASU is effective for annual periods beginning after December 15, 2018, and interim periods within those annual periods, with early adoption permitted. We are currently assessing the potential effects of these changes to our consolidated financial statements.

XML

Basis of Presentation and Significant Accounting Policies (Tables) - USD ($)
shares in Thousands, $ in Thousands

3 Months Ended

6 Months Ended

Jun. 30, 2018

Jun. 30, 2017

Jun. 30, 2018

Jun. 30, 2017

Dec. 31, 2017

Accounting Policies [Abstract]

Inventories Table

	June 30, 2018		December 31, 2017
	(In Thousands)
Finished goods	$	60,011	$	66,377
Raw materials	3,934		4,027
Parts and supplies	44,585		33,632
Work in progress	24,837		11,402
Total inventories	$	133,367	$	115,438

Inventories Detail [Table]

Finished goods

$ 60,011

$ 60,011

$ 66,377

Raw materials

3,934

3,934

4,027

Parts and supplies

44,585

44,585

33,632

Work in progress

24,837

24,837

11,402

Inventories

$ 133,367

$ 133,367

115,438

Net income per share policy

Net Income (Loss) per Share

The following is a reconciliation of the weighted average number of common shares outstanding with the number of shares used in the computations of net income (loss) per common and common equivalent share:

	Three Months Ended   June 30,		Six Months Ended   June 30,
	2018	2017	2018	2017
	(In Thousands)
Number of weighted average common shares outstanding	122,474	114,534	125,553	114,375
Assumed exercise of equity awards and warrants	—	—	—	—
Average diluted shares outstanding	122,474	114,534	125,553	114,375

For thethree and six month periods ended June 30, 2018 and June 30, 2017, the average diluted shares outstanding excludes the impact of all outstanding equity awards and warrants, as the inclusion of these shares would have been anti-dilutive due to the net losses recorded during the periods.

Weighted Average Shares Outstanding [Table]

Number of weighted average common shares outstanding

122,474

114,534

125,553

114,375

Assumed exercise of stock options

0

0

0

0

Average diluted shares outstanding

122,474

114,534

125,553

114,375

Fair Value Measurements on a Recurring Basis Table

				Fair Value Measurements Using
	Total as of			Quoted Prices in Active Markets for Identical Assets or Liabilities		Significant Other Observable Inputs			Significant Unobservable Inputs
Description	June 30, 2018			(Level 1)		(Level 2)			(Level 3)
	(In Thousands)
CCLP Series A Preferred Units	$	(45,644	)	$	—	$	—		$	(45,644	)
Warrants liability	(13,403		)	—		—			(13,403		)
Cash-settled stock appreciation rights	(287		)	—		—			(287		)
Asset for foreign currency derivative contracts	180			—		180			—
Liability for foreign currency derivative contracts	(241		)	—		(241		)	—
Net liability	$	(59,395	)

				Fair Value Measurements Using
	Total as of			Quoted Prices in Active Markets for Identical Assets or Liabilities		Significant Other Observable Inputs			Significant Unobservable Inputs
Description	December 31, 2017			(Level 1)		(Level 2)			(Level 3)
	(In Thousands)
CCLP Series A Preferred Units	$	(61,436	)	$	—	$	—		$	(61,436	)
Warrants liability	(13,202		)	—		—			(13,202		)
Cash-settled stock appreciation rights	(97		)	—		—			(97		)
Asset for foreign currency derivative contracts	241			—		241			—
Liability for foreign currency derivative contracts	(368		)	—		(378		)	—
Net liability	$	(74,862	)

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

Cash Settled Stock Appreciation Rights SARS

$ (287)

$ (287)

(97)

Fair Value, Inputs, Level 1 [Member]

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

Liabilities, Fair Value Disclosure, Recurring

0

0

0

Fair Value, Inputs, Level 2 [Member]

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

Liabilities, Fair Value Disclosure, Recurring

0

0

0

Fair Value, Inputs, Level 3 [Member]

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

Liabilities, Fair Value Disclosure, Recurring

(45,644)

(45,644)

(61,436)

Fair Value, Measurements, Recurring [Member]

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

Liabilities, Fair Value Disclosure, Recurring

(45,644)

(45,644)

(61,436)

Warranty, Fair Value Disclosure, Recurring

(13,403)

(13,403)

13,202

Asset for foreign currency derivative contracts

180

180

241

Liability for foreign currency derivative contracts

(241)

(241)

(368)

Total

(59,395)

(59,395)

(74,862)

Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member]

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

Warranty, Fair Value Disclosure, Recurring

0

0

0

Cash Settled Stock Appreciation Rights SARS

0

0

0

Asset for foreign currency derivative contracts

0

0

0

Liability for foreign currency derivative contracts

0

0

0

Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

Warranty, Fair Value Disclosure, Recurring

0

0

0

Cash Settled Stock Appreciation Rights SARS

0

0

0

Asset for foreign currency derivative contracts

180

180

241

Liability for foreign currency derivative contracts

(241)

(241)

(378)

Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

Warranty, Fair Value Disclosure, Recurring

(13,403)

(13,403)

13,202

Cash Settled Stock Appreciation Rights SARS

(287)

(287)

(97)

Asset for foreign currency derivative contracts

0

0

0

Liability for foreign currency derivative contracts

$ 0

$ 0

$ 0

XML

Long-Term Debt and Other Borrowings Long-Term Debt and Other Borrowings (TABLE) - USD ($)
$ in Thousands

6 Months Ended

Jun. 30, 2018

Dec. 31, 2017

Debt Instrument [Line Items]

Long-term Debt

$ 810,739

$ 629,855

Long-term Debt, Current Maturities

0

0

Long-term Debt, Excluding Current Maturities

$ 810,739

629,855

Long-Term Debt Table

		June 30, 2018		December 31, 2017
		(In Thousands)
TETRA	Scheduled Maturity
Bank revolving line of credit facility (presented net of the unamortized deferred financing costs of $1.0 million as of June 30, 2018)	September 30, 2019	$	59,906	$	—
11.0% Senior Note, Series 2015 (presented net of the unamortized discount of $3.6 million as of June 30, 2018 and $3.9 million as of December 31, 2017 and net of unamortized deferred financing costs of $3.1 million as of June 30, 2018 and $3.4 million as of December 31, 2017)	November 5, 2022	118,341		117,679
TETRA total debt		178,247		117,679
Less current portion		—		—
TETRA total long-term debt		$	178,247	$	117,679
CCLP
CCLP Bank Credit Facility (presented net of the unamortized deferred financing costs of $4.0 million as of December 31, 2017), terminated March 22, 2018	August 4, 2019	—		223,985
CCLP New Credit Agreement	June 29, 2023	—		—
CCLP 7.25% Senior Notes (presented net of the unamortized discount of $2.5 million as of June 30, 2018 and $2.8 million as of December 31, 2017 and net of unamortized deferred financing costs of $4.4 million as of June 30, 2018 and $5.0 million as of December 31, 2017)	August 15, 2022	288,989		288,191
CCLP 7.50% Senior Secured Notes (presented net of unamortized deferred financing costs of $6.5 million as of June 30, 2018)	April 1, 2025	343,503		—
CCLP total debt		632,492		512,176
Less current portion		—		—
Consolidated total long-term debt		$	810,739	$	629,855

CSI Compressco [Member]

Debt Instrument [Line Items]

Long-term Debt

$ 632,492

512,176

CSI Compressco [Member] | Line of Credit [Member]

Debt Instrument [Line Items]

Debt Instrument, Maturity Date

Aug. 04, 2019

Long-term Debt

$ 0

223,985

CSI Compressco [Member] | New Credit Agreement [Member]

Debt Instrument [Line Items]

Long-term Debt

$ 0

0

Line of Credit Facility, Expiration Date

Jun. 29, 2023

CSI Compressco [Member] | Compressco Partners Senior Notes [Member]

Debt Instrument [Line Items]

Debt Instrument, Maturity Date

Aug. 15, 2022

Long-term Debt

$ 288,989

288,191

CSI Compressco [Member] | Compressco Partners Senior Notes 7.50% [Member]

Debt Instrument [Line Items]

Long-term Debt

$ 343,503

$ 0

XML

Market Risks and Derivative Hedge Contracts Market Risks and Derivative Hedge Contracts (Tables)

6 Months Ended

Jun. 30, 2018

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Schedule of Notional Amounts of Outstanding Derivative Positions Table

Derivative Contracts	US Dollar Notional Amount		Traded Exchange Rate	Settlement Date
	(In Thousands)
Forward purchase Euro	$	464	1.16	7/19/2018
Forward sale pounds sterling	2,521		1.33	7/19/2018
Forward sale Canadian dollar	5,941		1.31	7/19/2018
Forward purchase Mexican peso	1,692		20.68	7/19/2018
Forward purchase Norwegian krone	985		8.12	7/19/2018
Forward sale Mexican peso	6,083		20.71	7/19/2018

Derivatives Designated as Hedging Instruments Table

Foreign currency derivative instruments	Balance Sheet Location	Fair Value at June 30, 2018			Fair Value at December 31, 2017
		(In Thousands)
Forward purchase contracts	Current assets	$	158		$	111
Forward sale contracts	Current assets	22			130
Forward sale contracts	Current liabilities	(241		)	(255		)
Forward purchase contracts	Current liabilities	—			(113		)
Net asset (liability)		$	(61	)	$	(127	)

XML

Equity (Tables)

6 Months Ended

Jun. 30, 2018

Equity [Abstract]

Changes in Equity Table

XML

Industry Segments (Tables)

6 Months Ended

Jun. 30, 2018

Segment Reporting [Abstract]

Segment Reporting Table

	Three Months Ended   June 30,						Six Months Ended   June 30,
	2018			2017			2018			2017
	(In Thousands)
Revenues from external customers
Product sales
Completion Fluids & Products Division	$	72,287		$	67,308		$	123,344		$	119,519
Water & Flowback Services Division	—			145			676			6,258
Compression Division	35,400			18,727			59,046			28,381
Consolidated	$	107,687		$	86,180		$	183,066		$	154,158
Services
Completion Fluids & Products Division	$	4,268		$	6,687		$	6,317		$	10,703
Water & Flowback Services Division	83,593			30,479			143,770			61,989
Compression Division	64,524			56,585			126,300			112,490
Consolidated	$	152,385		$	93,751		$	276,387		$	185,182
Interdivision revenues
Completion Fluids & Products Division	$	1		$	—		$	(1	)	$	1
Water & Flowback Services Division	53			462			275			1,018
Compression Division	—			—			—
Interdivision eliminations	(54		)	(462		)	(274		)	(1,019		)
Consolidated	$	—		$	—		$	—		$	—

Total revenues
Completion Fluids & Products Division	$	76,556		$	73,995		$	129,660		$	130,223
Water & Flowback Services Division	83,646			31,086			144,721			69,265
Compression Division	99,924			75,312			185,346			140,871
Interdivision eliminations	(54		)	(462		)	(274		)	(1,019		)
Consolidated	$	260,072		$	179,931		$	459,453		$	339,340
Income (loss) before taxes
Completion Fluids & Products Division	$	9,981		$	16,616		$	12,430		$	36,088
Water & Flowback Services Division	8,311			(3,920		)	14,859			(5,186		)
Compression Division	(8,655		)	(6,180		)	(22,673		)	(20,513		)
Interdivision eliminations	4			4			4			(161		)
Corporate Overhead(1)	(19,327		)	(11,169		)	(34,239		)	(19,041		)
Consolidated	$	(9,686	)	$	(4,649	)	$	(29,619	)	$	(8,813	)

	June 30, 2018			December 31, 2017
	(In Thousands)
Total assets
Completion Fluids & Products Division	$	303,396		$	293,507
Water & Flowback Services Division	228,368			139,771
Compression Division	880,385			784,745
Corporate Overhead and eliminations	(34,068		)	(30,543		)
Assets of discontinued operations	1,538			121,134
Consolidated	$	1,379,619		$	1,308,614

(1) Amounts reflected include the following general corporate expenses:

	Three Months Ended   June 30,					Six Months Ended   June 30,
	2018		2017			2018		2017
	(In Thousands)
General and administrative expense	$	11,871	$	12,051		$	24,469	$	21,606
Depreciation and amortization	164		118			315		209
Interest expense	4,877		4,240			8,884		8,014
Warrants fair value adjustment (income)/expense	2,195		(5,545		)	201		(11,521		)
Other general corporate (income) expense, net	220		305			370		733
Total	$	19,327	$	11,169		$	34,239	$	19,041

XML

Industry Segments - Revenue, Income from Operations, and Assets by Reporting Segment - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017	Dec. 31, 2017
Industry Segments Details [Line Items]
Product sales	$ 107,687	$ 86,180	$ 183,066	$ 154,158
Services and rentals	152,385	93,751	276,387	185,182
Intersegment revenues	0	0	0	0
Revenue, Net	260,072	179,931	459,453	339,340
Income (loss) before taxes	(12,132)	(7,966)	(33,189)	(12,211)
Assets	(1,379,619)	(1,308,614)	(1,379,619)	(1,308,614)	$ (1,308,614)
Disposal Group, Including Discontinued Operation, Assets	1,538	121,134	1,538	121,134	$ 121,134
Completion Fluids & Products Division [Member]
Industry Segments Details [Line Items]
Product sales	72,287	67,308	123,344	119,519
Services and rentals	4,268	6,687	6,317	10,703
Intersegment revenues	1	0	(1)	1
Revenue, Net	76,556	73,995	129,660	130,223
Income (loss) before taxes				36,088
Assets	(303,396)	(293,507)	(303,396)	(293,507)
Water & Flowback Services [Member]
Industry Segments Details [Line Items]
Product sales	0	145	676	6,258
Services and rentals	83,593	30,479	143,770	61,989
Intersegment revenues	53	462	275	1,018
Revenue, Net	83,646	31,086	144,721	69,265
Income (loss) before taxes				(5,186)
Assets	(228,368)	(139,771)	(228,368)	(139,771)
Compression Division [Member]
Industry Segments Details [Line Items]
Product sales	35,400	18,727	59,046	28,381
Services and rentals	64,524	56,585	126,300	112,490
Intersegment revenues	0	0	0
Revenue, Net	99,924	75,312	185,346	140,871
Income (loss) before taxes				(20,513)
Assets	(880,385)	(784,745)	(880,385)	(784,745)
Interdivision Eliminations [Member]
Industry Segments Details [Line Items]
Intersegment revenues	(54)	(462)
Revenue, Net	(54)	(462)	(274)	(1,019)
Income (loss) before taxes				(161)
Corporate Overhead [Member]
Industry Segments Details [Line Items]
Income (loss) before taxes	(19,327)	(11,169)	(34,239)	(19,041)
Assets	$ (34,068)	$ (30,543)	$ (34,068)	$ (30,543)

XML

Industry Segments - Corporate Expenses (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Segment Reporting Information [Line Items]
General and administrative expense	$ 33,617	$ 29,460	$ 64,420	$ 56,211
Depreciation, amortization, and accretion	28,979	25,784	55,420	52,308
Other (income) expense, net	3,808	775	6,584	1,236
Warrants fair value adjustment			201	(11,521)
Income (Loss) from Continuing Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest	12,132	7,966	33,189	12,211
Interest expense, net	18,379	14,328	33,352	28,095
Corporate Overhead [Member]
Segment Reporting Information [Line Items]
General and administrative expense	11,871	12,051	24,469	21,606
Depreciation, amortization, and accretion	164	118	315	209
Other (income) expense, net	220	305	370	733
Warrants fair value adjustment	2,195	(5,545)	201	(11,521)
Income (Loss) from Continuing Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest	19,327	11,169	34,239	19,041
Interest expense, net	$ 4,877	$ 4,240	$ 8,884	$ 8,014

XML

Revenue from Contracts with Customers (Tables)

6 Months Ended

Jun. 30, 2018

Revenue from Contract with Customer [Abstract]

Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Table Text Block]

	2018		2019		2020		2021		2022		Total
	(In Thousands)
Compression service contracts remaining performance obligations	$	1,791	$	3,209	$	1,027	$	253	$	77	$	6,357

XML

Revenue from Contracts with Customers Contract Assets and Liabilities (Tables)

6 Months Ended

Jun. 30, 2018

Revenue from Contract with Customer [Abstract]

Deferred Revenue Disclosure [Text Block]

	June 30, 2018
	(In Thousands)
Unearned Income, beginning of period	$	17,050
Additional unearned income	59,360
Revenue recognized	(47,276		)
Unearned income, end of period	$	29,134

XML

Revenue from Contracts with Customers Disaggregation of Revenue (Tables)

6 Months Ended

Jun. 30, 2018

Revenue from Contract with Customer [Abstract]

Disaggregation of Revenue [Table Text Block]

	Three months ended June 30,				Six months ended June 30,
	2018		2017		2018		2017
	(In Thousands)
Completion Fluids & Products
U.S.	34,112		40,870		62,020		81,672
International	42,444		33,125		67,640		48,551
	76,556		73,995		129,660		130,223
Water & Flowback Services
U.S.	70,838		24,277		117,877		48,417
International	12,808		6,809		26,844		20,848
	83,646		31,086		144,721		69,265
Compression
U.S.	90,927		68,887		167,907		126,856
International	8,997		6,425		17,439		14,015
	99,924		75,312		185,346		140,871
Interdivision eliminations
U.S.	—		—		1		(1	)
International	(54	)	(462	)	(275	)	(1,018	)
	(54	)	(462	)	(274	)	(1,019	)
Total Revenue
U.S.	195,877		134,034		347,805		256,944
International	64,195		45,897		111,648		82,396
	260,072		179,931		459,453		339,340

XML

Basis of Presentation and Significant Accounting Policies Basis of Presentation and Significant Accounting Policies - Additional Information (Details) $ in Thousands, shares in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2018 USD ($)	Jun. 30, 2017 USD ($)	Jun. 30, 2018 USD ($) shares	Jun. 30, 2017 USD ($)	Dec. 31, 2017 USD ($)
Accounting Policies [Abstract]
Number of Operating Segments			3
Foreign Currency Transaction Gain (Loss), Realized	$ 600	$ 600	$ (300)	$ 1,200
Debt Instrument [Line Items]
Asset Retirement Obligations, Noncurrent	12,073		12,073		$ 11,738
Restricted cash	4,273		4,273		261
Payments Related to Tax Withholding for Share-based Compensation			$ 593	407
Number of Shares of Convertible Debt, Warrants | shares			11.2
Preferred, Fair Value Adjustment	512	4,834	$ (846)	3,203
Fair Value Adjustment Of Warrants, Income Statement	2,195	$ (5,545)	201	$ (11,521)
Asset Retirement Obligation, Accretion Expense	150		309
Compressco Partners Senior Notes 7.50% [Member]
Debt Instrument [Line Items]
Fair value of Senior Notes	$ 351,800		$ 351,800
TETRA Senior Notes [Member]
Debt Instrument [Line Items]
Long-term Debt, Percentage Bearing Fixed Interest, Percentage Rate	11.00%		11.00%
Fair value of Senior Notes	$ 128,200		$ 128,200		130,800
Carrying value of Senior Notes					125,000
Compressco Partners Senior Notes [Member]
Debt Instrument [Line Items]
Long-term Debt, Percentage Bearing Fixed Interest, Percentage Rate	7.25%		7.25%
Fair value of Senior Notes	$ 271,500		$ 271,500		279,700
Carrying value of Senior Notes	$ 295,900		$ 295,900		$ 295,900

XML

Basis of Presentation and Significant Accounting Policies Basis of Presentation and Significant Accounting Policies - Goodwill and Impairment of Long-Lived Assets (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Goodwill [Line Items]
Goodwill	$ 22,197	$ 6,636

XML

Basis of Presentation and Significant Accounting Policies Asset Retirement Obligations (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
	Jun. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017
Asset Retirement Obligation Disclosure [Abstract]
Asset Retirement Obligation	$ 12,073	$ 12,073	$ 11,929	$ 11,738
Asset Retirement Obligation, Accretion Expense	150	309
Asset Retirement Obligation, Revision of Estimate	$ (6)	$ 26

XML

Basis of Presentation and Significant Accounting Policies Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended			6 Months Ended
	Jun. 30, 2018	Dec. 31, 2017	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Accounting Policies [Abstract]
Effective Income Tax Rate Reconciliation, Percent				(12.10%)
Provision (benefit) for income taxes	$ 2,446	$ 54,100	$ 3,317	$ 3,570	$ 3,398

XML

Discontinued Operations (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017	Dec. 31, 2017
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Disposal Group, Including Discontinued Operation, Accounts, Notes and Loans Receivable, Net	$ 1,502		$ 1,502		$ 28,927
Disposal Group Including Discontinued Operation Revenue	10	$ 28,437	4,674	$ 37,029
Disposal Group, Including Discontinued Operation, Cost of Revenue	(333)	28,247	11,027	39,273
Disposal Group, Including Discontinued Operation, Depreciation and Amortization	0	2,836	2,085	5,789
Disposal Group, Including Discontinued Operation, General and Administrative Expense	284	1,768	1,724	3,474
Disposal Group, Including Discontinued Operation, Interest Expense	55	2,153
Disposal Group, Including Discontinued Operation, Other Expense			78	2,058
Discontinued Operation, Income (Loss) from Discontinued Operation During Phase-out Period, before Income Tax	4	(6,567)	(10,240)	(13,565)
Discontinued Operation, Gain (Loss) from Disposal of Discontinued Operation, before Income Tax	(25)	0	(33,813)	0
Discontinued Operation, Income (Loss) from Discontinued Operation, before Income Tax	(21)	(6,567)	(44,053)	(13,565)
Discontinued Operation, Tax Effect of Discontinued Operation	0	86	(2,326)	95
Income (Loss) from Discontinued Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest	(21)	(6,653)	(41,727)	(13,660)
Disposal Group, Including Discontinued Operation, Inventory	0		0		4,616
Disposal Group, Including Discontinued Operation, Property, Plant and Equipment	0		0		85,873
Disposal Group, Including Discontinued Operation, Assets, Other Assets	36		36		1,718
Disposal Group, Including Discontinued Operation, Assets	1,538	121,134	1,538	121,134	121,134
Disposal Group, Including Discontinued Operation, Accounts Payable, Current	1,676		1,676		14,029
Disposal Group, Including Discontinued Operation, Accrued Liabilities, Current	6,667		6,667		13,222
Disposal Group, Including Discontinued Operation, Liabilities, Decommissioning and Asset Retirement Obligations	0		0		46,662
Disposal Group, Including Discontinued Operation, Liabilities	8,343		8,343		73,913
Maritech [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Disposal Group, Including Discontinued Operation, Accounts, Notes and Loans Receivable, Net	1,341		1,341		1,542
Disposal Group Including Discontinued Operation Revenue	0	175	187	406
Disposal Group, Including Discontinued Operation, Cost of Revenue	(98)	314	139	601
Disposal Group, Including Discontinued Operation, Depreciation and Amortization	0	373	212	743
Disposal Group, Including Discontinued Operation, General and Administrative Expense	0	174	187	411
Disposal Group, Including Discontinued Operation, Interest Expense	0
Disposal Group, Including Discontinued Operation, Other Expense			0
Disposal Group, Including Discontinued Operation, Other Income		(565)		(565)
Discontinued Operation, Income (Loss) from Discontinued Operation During Phase-out Period, before Income Tax	98	(121)	(351)	(784)
Disposal Group, Including Discontinued Operation, Inventory	0		0		0
Disposal Group, Including Discontinued Operation, Property, Plant and Equipment	0		0		0
Disposal Group, Including Discontinued Operation, Assets, Other Assets	(18)		(18)		44
Disposal Group, Including Discontinued Operation, Assets	1,323		1,323		1,586
Disposal Group, Including Discontinued Operation, Accounts Payable, Current	0		0		87
Disposal Group, Including Discontinued Operation, Accrued Liabilities, Current	2,059		2,059		2,278
Disposal Group, Including Discontinued Operation, Liabilities, Decommissioning and Asset Retirement Obligations	0		0		46,662
Disposal Group, Including Discontinued Operation, Liabilities	2,059		2,059		49,027
Offshore Services [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Disposal Group, Including Discontinued Operation, Accounts, Notes and Loans Receivable, Net	161		161		27,385
Disposal Group Including Discontinued Operation Revenue	10	28,262	4,487	36,623
Disposal Group, Including Discontinued Operation, Cost of Revenue	(235)	27,933	10,888	38,672
Disposal Group, Including Discontinued Operation, Depreciation and Amortization	0	2,463	1,873	5,046
Disposal Group, Including Discontinued Operation, General and Administrative Expense	284	1,594	1,537	3,063
Disposal Group, Including Discontinued Operation, Interest Expense	55	2,718
Disposal Group, Including Discontinued Operation, Other Expense			78	2,623
Discontinued Operation, Income (Loss) from Discontinued Operation During Phase-out Period, before Income Tax	(94)	$ (6,446)	(9,889)	$ (12,781)
Disposal Group, Including Discontinued Operation, Inventory	0		0		4,616
Disposal Group, Including Discontinued Operation, Property, Plant and Equipment	0		0		85,873
Disposal Group, Including Discontinued Operation, Assets, Other Assets	54		54		1,674
Disposal Group, Including Discontinued Operation, Assets	215		215		119,548
Disposal Group, Including Discontinued Operation, Accounts Payable, Current	1,676		1,676		13,942
Disposal Group, Including Discontinued Operation, Accrued Liabilities, Current	4,608		4,608		10,944
Disposal Group, Including Discontinued Operation, Liabilities, Decommissioning and Asset Retirement Obligations	0		0		0
Disposal Group, Including Discontinued Operation, Liabilities	$ 6,284		$ 6,284		$ 24,886

XML

Long-Term Debt and Other Borrowings (Details) $ in Thousands	6 Months Ended
	Jun. 30, 2018 USD ($)	Dec. 31, 2017 USD ($)
Debt Instrument [Line Items]
Long-term debt	$ 810,739	$ 629,855
Less current portion	0	0
Long-term debt, net of current portion	$ 810,739	629,855
Debt covenants, maximum leverage ratio	4.75
Fixed charge coverage ratio	2.87
Line of credit facility, minimum interest coverage ratio	1.25
Proceeds from Issuance of Debt	$ 343,800
Debt Instrument, Fee Amount	6,700
Payments of Financing Costs	3,540
Parent Company [Member]
Debt Instrument [Line Items]
Long-term debt	178,247	117,679
Less current portion	0	0
Long-term debt, net of current portion	$ 178,247	117,679
Debt leverage ratio	2.18
Line of Credit [Member] | Parent Company [Member]
Debt Instrument [Line Items]
Debt Instrument, Maturity Date	Sep. 30, 2019
Long-term debt	$ 59,906	0
Unamortized deferred finance costs	1,000	$ 0
Bank line of credit, outstanding balance	61,000
Bank line of credit, letters of credit and guarantees	6,800
Bank line of credit, net availability	$ 132,200
2015 Senior Notes [Member] | Parent Company [Member]
Debt Instrument [Line Items]
Senior Note interest rate	11.00%	11.00%
Debt Instrument, Maturity Date	Nov. 05, 2022
Long-term debt	$ 118,341	$ 117,679
Unamortized discount	3,600	3,900
Unamortized deferred finance costs	3,100	3,400
CSI Compressco [Member]
Debt Instrument [Line Items]
Long-term debt	$ 632,492	512,176
CSI Compressco [Member] | Line of Credit [Member]
Debt Instrument [Line Items]
Debt Instrument, Maturity Date	Aug. 04, 2019
Long-term debt	$ 0	223,985
Unamortized deferred finance costs	$ 0	$ 4,000
CSI Compressco [Member] | Compressco Partners Senior Notes [Member]
Debt Instrument [Line Items]
Senior Note interest rate	7.25%	7.25%
Debt Instrument, Maturity Date	Aug. 15, 2022
Long-term debt	$ 288,989	$ 288,191
Unamortized discount	2,500	2,800
Unamortized deferred finance costs	4,400	5,000
CSI Compressco [Member] | New Credit Agreement [Member]
Debt Instrument [Line Items]
Long-term debt	0	$ 0
Unamortized deferred finance costs	$ 1,300
Debt Instrument, Redemption, Period One [Member]
Debt Instrument [Line Items]
Debt Instrument, Redemption Price, Percentage	100.00%
Debt Instrument, Redemption, Period Two [Member]
Debt Instrument [Line Items]
Debt Instrument, Redemption Price, Percentage	100.00%
Debt Instrument, Redemption, Period Three [Member]
Debt Instrument [Line Items]
Debt Instrument, Redemption Price, Percentage	100.00%
Debt Instrument, Redemption, Period Four [Member]
Debt Instrument [Line Items]
Debt Instrument, Redemption Price, Percentage	100.00%

XML

CCLP Series A Preferred Units CCLP Series A Preferred Units (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017	Dec. 31, 2017
Preferred Units [Line Items]
Proceeds from Convertible Debt				$ 77,300
Dividend rate, percentage			11.00%
Annualized distribution per unit on convertible debt			$ 1.2573
Maximum settlement of preferred unit conversion	25,500,000		25,500,000
Preferred Units	$ 45,644		$ 45,644		$ 61,436
Preferred, Fair Value Adjustment	$ 512	$ 4,834	$ (846)	3,203
Shares Issued, Price Per Share	$ 11.43		$ 11.43
Liabilities, Fair Value Adjustment			$ (846)	$ 3,203
Maximum Settlement of Preferred, If Converted			9,900,000
Settlement of Series A Preferred, If settled	$ 55,200		$ 55,200
Incremental Settlement of Series A Preferred, If converted	2,400,000		2,400,000
TETRA [Member]
Preferred Units [Line Items]
Proceeds from Convertible Debt			$ 10,000
Number of Shares of Convertible Debt			874,891
Preferred Units, Outstanding	559,975		559,975
CSI Compressco [Member]
Preferred Units [Line Items]
Number of Shares of Convertible Debt			6,999,126
Preferred Units, Outstanding	4,458,803		4,458,803

XML

Market Risks and Derivative Hedge Contracts (Details) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018 USD ($)	Jun. 30, 2017 USD ($)	Jun. 30, 2018 USD ($)	Jun. 30, 2017 USD ($)	Dec. 31, 2017 USD ($)	Dec. 31, 2016 USD ($)
Derivatives, Fair Value [Line Items]
Foreign Currency Derivative Instruments Not Designated as Hedging Instruments, Liability at Fair Value	$ (61)		$ (61)		$ (127)
Derivative [Line Items]
Net gains associated with foreign currency derivatives	700	$ 400	800	$ 1,100
Forward Purchase Contract, Euro [Member]
Derivative [Line Items]
U.S. Dollar notional amount	$ 464		$ 464
Traded exchange rate	1.16		1.16
Value date	Jul. 19, 2018
Forward Purchase Contract, Euro [Member]
Derivative [Line Items]
U.S. Dollar notional amount	$ 27,437		$ 27,437
Traded exchange rate	10.16		10.16
Value date	Jul. 19, 2018
Forward Purchase Contract, Pounds Sterling [Member]
Derivative [Line Items]
U.S. Dollar notional amount	$ 2,521		$ 2,521
Traded exchange rate	1.33		1.33
Value date	Jul. 19, 2018
Forward Purchase Contract, Brazil Real [Member]
Derivative [Line Items]
U.S. Dollar notional amount	$ 5,941		$ 5,941
Traded exchange rate	1.31		1.31
Value date	Jul. 19, 2018
Forward Purchase Contract, Mexican Pesos [Member]
Derivative [Line Items]
U.S. Dollar notional amount	$ 1,692		$ 1,692
Traded exchange rate	20.68		20.68
Value date	Jul. 19, 2018
Forward Sale Contract, Norwegian Krone [Member]
Derivative [Line Items]
U.S. Dollar notional amount	$ 985		$ 985
Traded exchange rate	8.12		8.12
Value date	Jul. 19, 2018
Forward Sale Contract, Mexican Pesos (2) [Member]
Derivative [Line Items]
U.S. Dollar notional amount	$ 6,083		$ 6,083
Traded exchange rate	20.71		20.71
Value date	Jul. 19, 2018
Current Assets [Member]
Derivatives, Fair Value [Line Items]
Forward purchase contracts	$ 22		$ 22			$ 130
Forward sale contracts	158		158		111
Current Liabilities [Member]
Derivatives, Fair Value [Line Items]
Forward purchase contracts	0		0		(113)
Forward sale contracts	$ (241)		$ (241)		$ (255)

XML

Market Risks and Derivative Hedge Contracts Additional Information (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Net gains associated with foreign currency derivatives	$ 0.7	$ 0.4	$ 0.8	$ 1.1

XML

Equity (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017	Dec. 31, 2017
Equity Table [Line Items]
Common stock, shares authorized	250,000,000		250,000,000		250,000,000
Stockholders' equity rollforward
Beginning balance for the period	$ 325,461	$ 388,927	$ 352,561	$ 400,466
Net income (loss)	(12,153)	(14,619)	(74,916)	(25,871)
Foreign currency translation adjustment, including taxes	(9,249)	2,968	(7,966)	5,161
Comprehensive income	(21,402)	(11,651)	(82,882)	(20,710)
Proceeds from the issuance of stock	2	5	28,117	16
Conversion of Stock, Amount Converted	9,272	7,632	19,375	10,020
Distributions to public unitholders	(4,624)	(3,696)	(8,982)	(10,944)
Equity-based compensation	2,263	2,822	3,042	5,291
Treasury stock and other	90	302	169	380
Ending balance	311,062	383,727	311,062	383,727
TETRA [Member]
Stockholders' equity rollforward
Beginning balance for the period	185,425	234,578	208,080	233,523
Net income (loss)	(5,965)	(10,991)	(59,613)	(13,454)
Foreign currency translation adjustment, including taxes	(7,495)	3,293	(5,827)	5,345
Comprehensive income	(13,460)	(7,698)	(65,440)	(8,109)
Proceeds from the issuance of stock	2	5	28,117	16
Conversion of Stock, Amount Converted	0	0	0	0
Distributions to public unitholders	0	0	0	0
Equity-based compensation	1,905	2,039	3,339	3,552
Treasury stock and other	86	241	138	277
Ending balance	173,958	228,673	173,958	228,673
Noncontrolling Interest [Member]
Stockholders' equity rollforward
Beginning balance for the period	140,036	154,349	144,481	166,943
Net income (loss)	(6,188)	(3,628)	(15,303)	(12,417)
Foreign currency translation adjustment, including taxes	(1,754)	(325)	(2,139)	(184)
Comprehensive income	(7,942)	(3,953)	(17,442)	(12,601)
Proceeds from the issuance of stock	0	0	0	0
Conversion of Stock, Amount Converted	9,272	7,632	19,375	10,020
Distributions to public unitholders	(4,624)	(3,696)	(8,982)	(10,944)
Equity-based compensation	358	783	(297)	1,739
Treasury stock and other	4	61	31	103
Ending balance	$ 137,104	$ 155,054	$ 137,104	$ 155,054

XML

Commitments and Contingencies Commitment and Contingencies (Details) $ in Millions	6 Months Ended
	Jun. 30, 2018 USD ($)
Commitments and Contingencies Disclosure [Abstract]
Litigation Settlement, Amount Awarded from Other Party	$ 12.8

XML

Industry Segments Additional Details (Details) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018 USD ($)	Jun. 30, 2017 USD ($)	Jun. 30, 2018 USD ($)	Jun. 30, 2017 USD ($)	Dec. 31, 2017 USD ($)
Industry Segments Details [Line Items]
Revenues	$ 0	$ 0	$ 0	$ 0
Number of Reportable Segments			3
Disposal Group, Including Discontinued Operation, Assets	1,538	121,134	$ 1,538	121,134	$ 121,134
Revenue, Net	260,072	179,931	459,453	339,340
General and administrative expense	33,617	29,460	64,420	56,211
Depreciation, amortization, and accretion	28,979	25,784	55,420	52,308
Interest expense, net	18,379	14,328	33,352	28,095
Warrants fair value adjustment			201	(11,521)
Other Nonoperating Income (Expense)	(3,808)	(775)	(6,584)	(1,236)
Income (Loss) from Continuing Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest	(12,132)	(7,966)	(33,189)	(12,211)
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest	(9,686)	(4,649)	(29,619)	(8,813)
Completion Fluids & Products Division [Member]
Industry Segments Details [Line Items]
Revenues	1	0	(1)	1
Revenue, Net	76,556	73,995	129,660	130,223
Income (Loss) from Continuing Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest				36,088
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest	9,981	16,616	12,430
Corporate Overhead [Member]
Industry Segments Details [Line Items]
General and administrative expense	11,871	12,051	24,469	21,606
Depreciation, amortization, and accretion	164	118	315	209
Interest expense, net	4,877	4,240	8,884	8,014
Warrants fair value adjustment	2,195	(5,545)	201	(11,521)
Other Nonoperating Income (Expense)	(220)	(305)	(370)	(733)
Income (Loss) from Continuing Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest	(19,327)	(11,169)	(34,239)	(19,041)
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest	(19,327)	(11,169)	(34,239)
Water & Flowback Services [Member]
Industry Segments Details [Line Items]
Revenues	53	462	275	1,018
Revenue, Net	83,646	31,086	144,721	69,265
Income (Loss) from Continuing Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest				(5,186)
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest	8,311	(3,920)	14,859
Compression Division [Member]
Industry Segments Details [Line Items]
Revenues	0	0	0
Revenue, Net	99,924	75,312	185,346	140,871
Income (Loss) from Continuing Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest				(20,513)
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest	(8,655)	(6,180)	(22,673)
Interdivision Eliminations [Member]
Industry Segments Details [Line Items]
Revenues	(54)	(462)
Revenue, Net	(54)	(462)	(274)	(1,019)
Income (Loss) from Continuing Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest				(161)
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest	$ 4	$ 4	4
Intersegment Eliminations [Member]
Industry Segments Details [Line Items]
Revenues			$ (274)	$ (1,019)

XML

Revenue from Contracts with Customers Disaggregation of Revenue - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Including Assessed Tax	$ 260,072	$ 179,931	$ 459,453	$ 339,340
Revenue, Remaining Performance Obligation	6,357		6,357
Remaining credits expected to be issued	1,100		1,100
Completion Fluids & Products Division [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Including Assessed Tax	76,556	73,995	129,660	130,223
Water & Flowback Services [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Including Assessed Tax	83,646	31,086	144,721	69,265
Compression Division [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Including Assessed Tax	99,924	75,312	185,346	140,871
Interdivision Eliminations [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Including Assessed Tax	(54)	(462)	(274)	(1,019)
UNITED STATES
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Including Assessed Tax	195,877	134,034	347,805	256,944
UNITED STATES | Completion Fluids & Products Division [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Including Assessed Tax	34,112	40,870	62,020	81,672
UNITED STATES | Water & Flowback Services [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Including Assessed Tax	70,838	24,277	117,877	48,417
UNITED STATES | Compression Division [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Including Assessed Tax	90,927	68,887	167,907	126,856
UNITED STATES | Interdivision Eliminations [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Including Assessed Tax	0	0	1	(1)
Non-US [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Including Assessed Tax	64,195	45,897	111,648	82,396
Non-US [Member] | Completion Fluids & Products Division [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Including Assessed Tax	42,444	33,125	67,640	48,551
Non-US [Member] | Water & Flowback Services [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Including Assessed Tax	12,808	6,809	26,844	20,848
Non-US [Member] | Compression Division [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Including Assessed Tax	8,997	6,425	17,439	14,015
Non-US [Member] | Interdivision Eliminations [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Including Assessed Tax	$ (54)	$ (462)	$ (275)	$ (1,018)

XML

Revenue from Contracts with Customers Contract Assets and Liabilities - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017	Dec. 31, 2017
Revenue from Contract with Customer [Abstract]
Trade accounts receivable, net of allowances	$ 181,454		$ 181,454		$ 144,051
Deferred Revenue	29,134		29,134		$ 17,050
Deferred Revenue, Additions			59,360
Contract with Customer, Liability, Revenue Recognized			(47,276)
Allowance for Doubtful Accounts Receivable, Write-offs	$ 300	$ 300	100	$ 900
Contract with Customer, Liability, Revenue Recognized			$ 47,300

XML

Revenue from Contracts with Customers Services (Details) $ in Thousands	Jun. 30, 2018 USD ($)
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue, Remaining Performance Obligation	$ 6,357
Remaining credits expected to be issued	1,100
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2018-12-31
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue, Remaining Performance Obligation	1,791
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2019-12-31
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue, Remaining Performance Obligation	3,209
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2020-12-31
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue, Remaining Performance Obligation	1,027
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2021-12-31
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue, Remaining Performance Obligation	253
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2022-12-31
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue, Remaining Performance Obligation	$ 77

XML

Acquisitions and Dispositions Disposition (Details) - USD ($)	6 Months Ended
	Jun. 30, 2018	Mar. 31, 2018	Mar. 02, 2018	Dec. 31, 2017
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Goodwill, Acquired During Period	$ 15,560,000
Disposal Group, Including Discontinued Operation, Consideration				$ 3,100,000
Notes Receivable, Related Parties				7,500,000
Loans Receivable with Fixed Rates of Interest				0.0152
Asset Retirement Obligation	12,073,000	$ 11,929,000		11,738,000
Line of Credit Facility, Maximum Borrowing Capacity			$ 47,000,000
Gain (Loss) on Disposition of Business	(33,813,000)
Business Exit Costs	$ 1,400,000
Maritech [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Asset Retirement Obligation				$ 46,800,000

XML

Acquisitions and Dispositions Acquisition (Details) - USD ($)	1 Months Ended	3 Months Ended		6 Months Ended
	Feb. 28, 2018	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017	Feb. 27, 2018
Business Acquisition [Line Items]
Payments to Acquire Businesses, Gross	$ 42,000,000
Business Acquisition, Equity Interest Issued or Issuable, Number of Shares	7,772,021
Business Acquisition, Equity Interest Issued or Issuable, Value Assigned						$ 28,200,000
Business Combination, Contingent Consideration Arrangements, Change in Amount of Contingent Consideration, Liability		$ 4,300,000		$ 4,300,000	$ 0
Business Combination, Contingent Consideration Arrangements, Range of Outcomes, Value, High						15,000,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Other		16,880,000		16,880,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment		11,631,000		11,631,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill		41,960,000		41,960,000
Goodwill, Acquired During Period				15,560,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets		86,031,000		86,031,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities		7,189,000		7,189,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities		7,189,000		7,189,000
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net		78,842,000		78,842,000
Business Combination, Liabilities Arising from Contingencies, Amount Recognized						7,600,000
Business Combination, Contingent Consideration Arrangements, Range of Outcomes, Value, Low						$ 0
Business Combination, Contingent Consideration, Liability		11,900,000		11,900,000
Indefinite-Lived Trademarks		3,300,000		3,300,000
Finite-Lived Customer Relationships, Gross		37,200,000		37,200,000
Other Finite-Lived Intangible Assets, Gross		1,500,000		1,500,000
Business Acquisition, Pro Forma Revenue		260,072,000	$ 191,891,000	473,603,000	362,824,000
Business Acquisition, Pro Forma Depreciation, Amortization, and Accretion		28,979,000	27,197,000	56,397,000	54,949,000
Business Acquisition, Pro Forma Gross Profit		47,801,000	33,115,000	79,749,000	57,668,000
Business Acquisition, Pro Forma Income (Loss) from Continuing Operations, Net of Tax		(12,132,000)	(6,594,000)	(30,988,000)	(9,285,000)
Business Acquisition, Pro Forma Net Income (Loss)		(5,965,000)	$ (9,619,000)	(57,412,000)	$ (10,528,000)
Amortization of Intangible Assets				1,000,000
Business Acquisition, Transaction Costs		$ 400,000		400,000
Business Combination, Pro Forma Information, Revenue of Acquiree since Acquisition Date, Actual				36,600,000
Business Combination Pro Forma Information Depreciation And Amortization Of Acquirees Since Acquisition Date, Actual				2,100,000
Business Combination, Pro Forma Information, Earnings or Loss of Acquiree since Acquisition Date, Actual				$ 7,000,000
Minimum [Member]
Business Acquisition [Line Items]
Finite-Lived Intangible Asset, Useful Life				5 years
Minimum [Member] | Machinery and Equipment [Member]
Business Acquisition [Line Items]
Property, Plant and Equipment, Useful Life				3 years
Minimum [Member] | Automobiles [Member]
Business Acquisition [Line Items]
Property, Plant and Equipment, Useful Life				3 years
Maximum [Member]
Business Acquisition [Line Items]
Finite-Lived Intangible Asset, Useful Life				16 years
Maximum [Member] | Machinery and Equipment [Member]
Business Acquisition [Line Items]
Property, Plant and Equipment, Useful Life				15 years
Maximum [Member] | Automobiles [Member]
Business Acquisition [Line Items]
Property, Plant and Equipment, Useful Life				4 years
Working Capital [Member]
Business Acquisition [Line Items]
Business Combination, Contingent Consideration Arrangements, Change in Amount of Contingent Consideration, Liability				$ 1,000,000

XML

Label	Element	Value
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents	us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	$ 36,531,000
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents	us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	$ 26,389,000