Fair Value Measurements (Tables)

3 Months Ended

Mar. 31, 2021

Fair Value Disclosures [Abstract]

Schedule Of Carrying Value And Fair Value Measurement Information For Financial Assets And Liabilities

							Fair Value Measurements Using:
	Carrying			Total Fair			Level 1		Level 2			Level 3
	Amount			Value			Inputs		Inputs			Inputs
March 31, 2021 assets (liabilities):
Cash equivalents	$	1,075		$	1,075		$	1,075	$	—		$	—
Commodity derivatives	$	6		$	6		$	—	$	6		$	—
Commodity derivatives	$	(789	)	$	(789	)	$	—	$	(789	)	$	—
Debt	$	(7,268	)	$	(8,091	)	$	—	$	(8,091	)	$	—
Contingent earnout payments	$	70		$	70		$	—	$	—		$	70
December 31, 2020 assets (liabilities):
Cash equivalents	$	1,436		$	1,436		$	1,436	$	—		$	—
Commodity derivatives	$	6		$	6		$	—	$	6		$	—
Commodity derivatives	$	(148	)	$	(148	)	$	—	$	(148	)	$	—
Debt	$	(4,298	)	$	(5,365	)	$	—	$	(5,365	)	$	—
Contingent earnout payments	$	66		$	66		$	—	$	—		$	66