Commitments and Contingencies (Tables)

6 Months Ended

Sep. 30, 2025

Commitments and Contingencies Disclosure [Abstract]

Schedule of change in asset retirement obligation

The following table summarizes changes in our asset retirement obligations, which is reported within other noncurrent liabilities in our unaudited condensed consolidated balance sheets (in thousands):

Asset retirement obligations at March 31, 2025	$	69,572
Liabilities incurred	6,172
Liabilities associated with disposed assets (1)	(402)
Liabilities settled	(4,628)
Accretion expense	2,541
Asset retirement obligations at September 30, 2025	$	73,255

(1)    Relates to the sale of a certain saltwater disposal well within our Water Solutions segment.

Schedule of outstanding purchase commitments

At September 30, 2025, we had the following commodity purchase commitments:

	Crude Oil (1)			Natural Gas Liquids
	Value		Volume (in barrels)	Value		Volume (in gallons)
	(in thousands)
Fixed-Price Commodity Purchase Commitments:
Year ending March 31,
2026 (six months)	$	53,402	854	$	18,547	24,453
2027	—		—	4,075		5,796
2028	—		—	1,042		1,512
Total	$	53,402	854	$	23,664	31,761
Index-Price Commodity Purchase Commitments:
Year ending March 31,
2026 (six months)	$	1,179,505	20,371	$	352,082	392,023
2027	198,053		4,687	9,008		9,960
2028	198,809		4,680	8,239		9,750
2029	30,540		1,820	—		—
2030	30,942		1,820	—		—
2031	33,243		557	—		—
Thereafter	122,150		2,045	—		—
Total	$	1,793,242	35,980	$	369,329	411,733

(1)    Our crude oil index-price purchase commitments exceed our crude oil index-price sales commitments (presented above) due primarily to our long-term purchase commitments for crude oil that we purchase and ship on the Grand Mesa Pipeline.

Schedule of outstanding sale commitments

At September 30, 2025, we had the following commodity sale commitments:

	Crude Oil			Natural Gas Liquids
	Value		Volume (in barrels)	Value		Volume (in gallons)
	(in thousands)
Fixed-Price Commodity Sale Commitments:
Year ending March 31,
2026 (six months)	$	52,577	836	$	50,163	50,759
2027	—		—	7,165		8,829
2028	—		—	639		875
2029	—		—	19		19
2030	—		—	19		19
Total	$	52,577	836	$	58,005	60,501
Index-Price Commodity Sale Commitments:
Year ending March 31,
2026 (six months)	$	980,787	15,669	$	323,421	279,899
2027	77,116		1,263	76,940		71,370
2028	77,604		1,266	—		—
2029	75,146		1,263	—		—
2030	73,638		1,263	—		—
Total	$	1,284,291	20,724	$	400,361	351,269

Schedule of future minimum payments under contractual commitments

The following table summarizes future minimum payments under these agreements at September 30, 2025 (in thousands):

Year Ending March 31,
2026 (six months)	$	3,139
2027	5,493
2028	4,647
2029	2,653
2030	1,660
2031	1,408
Thereafter	1,155
Total	$	20,155