Derivative Instruments and Fair Value Measurements (Tables)

6 Months Ended

Jun. 30, 2019

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Derivatives reflected in the consolidated balance sheet

The estimated fair value of forward month commodity contracts (derivatives) reflected in the accompanying unaudited condensed consolidated balance sheet were as follows at the date indicated (in thousands):

	June 30, 2019
	Balance Sheet Location and Amount
	Current		Other		Current		Other
	Assets		Assets		Liabilities		Liabilities
Asset derivatives:
Fair value forward hydrocarbon commodity
contracts at gross valuation	$	240	$	—	$	—	$	—
Liability derivatives:
Fair value forward hydrocarbon commodity
contracts at gross valuation	—		—		236		—
Less counterparty offsets	—		—		—		—
As reported fair value contracts	$	240	$	—	$	236	$	—

At December 31, 2018, we had in place 10 commodity purchase and sale contracts with fair value associated with them as the contractual prices of crude oil were outside of the range of prices specified in the agreements. These commodity purchase and sale contracts encompassed approximately:

•322 barrels per day of crude oil during January 2019 through April 2019;

•258 barrels per day of crude oil during May 2019;

•322 barrels per day of crude oil during June 2019 through August 2019; and

•258 barrels per day of crude oil during September 2019 through December 2019.

The estimated fair value of forward month commodity contracts (derivatives) reflected in the accompanying unaudited condensed consolidated balance sheet were as follows at the date indicated (in thousands):

	December 31, 2018
	Balance Sheet Location and Amount
	Current		Other		Current		Other
	Assets		Assets		Liabilities		Liabilities
Asset derivatives:
Fair value forward hydrocarbon commodity
contracts at gross valuation	$	162	$	—	$	—	$	—
Liability derivatives:
Fair value forward hydrocarbon commodity
contracts at gross valuation	—		—		139		—
Less counterparty offsets	—		—		—		—
As reported fair value contracts	$	162	$	—	$	139	$	—

Derivatives reflected in the consolidated statement of operations

Forward month commodity contracts (derivatives) reflected in the accompanying unaudited condensed consolidated statements of operations were as follows for the periods indicated (in thousands):

	Gains (losses)
	Three Months Ended				Six Months Ended
	June 30,				June 30,
	2019		2018		2019		2018
Revenues – marketing	$	—	$	1	$	(20)	$	2

Fair value assets and liabilities

The following tables set forth, by level with the Level 1, 2 and 3 fair value hierarchy, the carrying values of our financial assets and liabilities at the dates indicated (in thousands):

	June 30, 2019
	Fair Value Measurements Using
	Quoted Prices
	in Active		Significant
	Markets for		Other		Significant
	Identical Assets		Observable		Unobservable
	and Liabilities		Inputs		Inputs		Counterparty
	(Level 1)		(Level 2)		(Level 3)		Offsets		Total
Derivatives:
Current assets	$	—	$	240	$	—	$	—	$	240
Current liabilities	—		(236)		—		—		(236)
Net value	$	—	$	4	$	—	$	—	$	4

	December 31, 2018
	Fair Value Measurements Using
	Quoted Prices
	in Active		Significant
	Markets for		Other		Significant
	Identical Assets		Observable		Unobservable
	and Liabilities		Inputs		Inputs		Counterparty
	(Level 1)		(Level 2)		(Level 3)		Offsets		Total
Derivatives:
Current assets	$	—	$	162	$	—	$	—	$	162
Current liabilities	—		(139)		—		—		(139)
Net value	$	—	$	23	$	—	$	—	$	23