Fair Value Measurements

6 Months Ended

Jun. 30, 2021

Derivative Instruments and Hedging Activities Disclosure [Abstract]

FAIR VALUE MEASUREMENTS

Financial Instruments

Investments

Our retained investment in CSI Compressco and our investment in Standard Lithium are recorded based on the quoted market stock price in active markets (a Level 1 fair value measurement). The stock component of consideration received for our arrangement with Standard Lithium is initially recorded as unearned income based on the quoted market price at the time the stock is received, then recognized in income over the contract term. The unearned income associated with the stock component of this agreement is not significant as of June 30, 2021 or December 31, 2020. Changes in the value of stock are recorded in other income (expense) in our consolidated statements of operations

Warrants

The Warrants are valued using a Black Scholes option valuation model that includes estimates of the volatility of the Warrants (a Level 3 fair value measurement). The Warrants are accounted for as a derivative liability and 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 and by increases in the volatility of our common stock price, 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 fair value of the Warrants and associated liability increased during the second quarter of 2021 primarily due to the increase in TETRA’s stock price. The estimated volatility as of June 30, 2021 was 60%. The outstanding Warrants expire by December 31, 2021.

Recurring and nonrecurring fair value measurements by valuation hierarchy as of June 30, 2021 and December 31, 2020, are 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, 2021		(Level 1)		(Level 2)		(Level 3)
	(In Thousands)
Investment in CSI Compressco	$	9,638	$	9,638	$	—	$	—
Investment in Standard Lithium	6,583		6,583		—		—
Warrants liability	(3,219)		—		—		(3,219)
Net asset	$	13,002


			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, 2020		(Level 1)		(Level 2)	(Level 3)
	(In Thousands)

Investment in Standard Lithium	$	2,675	$	2,675	—	$	—
Warrants liability	(198)		—		—	(198)
Net asset	$	2,477

The fair values of cash, restricted cash, accounts receivable, accounts payable, accrued liabilities, short-term borrowings and long-term debt pursuant to TETRA’s ABL Credit Agreement and term credit agreement approximate their carrying amounts. See Note 6 - “Long-Term Debt and Other Borrowings” for further discussion.