Saltwater Disposal Wells in Cochran County

Complete UIC injection & disposal well inventory from RRC permits, with reported H-10 volumes.

Active Wells

956

Permitted Capacity

1.2M bbl/d

Injected 12mo (thru 2025-06)

30.7M bbl

UIC Permits All Time

2,112

STATUS	LEASE / WELL	API	OPERATOR	TYPE	PERMITTED BBL/D	INJECTED 12MO	ZONE (FT)
Active	WOODLEY, F. L. #81W	42-079-33208	HILCORP ENGY CO	Injection	600	21,945	4,850–5,150
Active	LANDON (SAN ANDRES) UNIT #92W	42-079-02019	PRASAD, HARI PROD CO	Injection	500	21,835	5,018–5,106
Active	BOYD #56	42-079-31825	HILCORP ENGY CO	Injection	5,000	21,667	4,700–5,200
Active	BOYD #54W	42-079-30554	HILCORP ENGY CO	Injection	5,000	21,617	4,700–5,200
Active	DEAN, C. S. "A" #113W	42-079-20102	HILCORP ENGY CO	Injection	5,000	21,329	4,300–5,068
Active	MASTEN UNIT #A 15	42-079-30985	TALIS ENERGY INC.	Injection	385	21,018	4,800–5,000
Active	CONOCO-DEAN UNIT #145	42-079-32445	EXTEX OPER CO	Injection	1,000	20,921	4,900–5,190
Active	WEST LEVELLAND UNIT #146D	42-079-00425	HILCORP ENGY CO	Injection	250	20,536	4,810–4,926
Active	CONOCO-DEAN UNIT #75W	42-079-01215	EXTEX OPER CO	Injection	1,000	20,484	5,010–5,048
Active	BOYD MALLET UNIT #49W	42-079-01463	EXTEX OPER CO	Injection	500	20,465	4,800–5,165
Active	NORTH CENTRAL LEVELLAND UNIT #28W	42-079-01441	HILCORP ENGY CO	Injection	1,000	20,437	4,783–4,843
Active	DUGGAN SLAUGHTER UNIT #401AW	42-079-00671	CROSS TIMBERS ENGY, LLC	Injection	1,000	20,276	4,980–5,057
Active	BOYD MALLET UNIT #4W	42-079-01365	EXTEX OPER CO	Injection	500	19,970	4,800–5,165
Active	XIT UNIT #127W	42-079-02304	HILCORP ENGY CO	Injection	500	19,899	4,850–5,200
Active	XIT UNIT #161W	42-079-30807	HILCORP ENGY CO	Injection	500	19,874	4,850–5,200
Active	XIT UNIT #49W	42-079-01971	HILCORP ENGY CO	Injection	500	19,810	4,850–5,200
Active	MASTEN UNIT #C 2	42-079-30564	TALIS ENERGY INC.	Injection	385	19,727	4,800–5,000
Active	DUGGAN SLAUGHTER UNIT #409NW	42-079-32813	CROSS TIMBERS ENGY, LLC	Injection	1,000	19,712	4,200–5,300
Active	IGOE-SMITH OPER. AREA #5W	42-079-01099	OCCIDENTAL PERMIAN EOR, LLC	Injection	5,000	19,599	4,700–5,200
Active	SLAUGHTER, NW. (SAN ANDRES) UNIT #86W	42-079-32741	AVIATOR ENERGY, LLC	Injection	6,000	19,570	4,800–5,100
Active	WOODLEY, F. L. #79W	42-079-33209	HILCORP ENGY CO	Injection	600	19,022	4,850–5,150
Active	WOODLEY, F. L. #96W	42-079-33291	HILCORP ENGY CO	Injection	1,500	18,927	4,850–5,500
Active	XIT UNIT #181	42-079-31332	HILCORP ENGY CO	Injection	500	18,926	4,850–5,200
Active	WRIGHT, J.M. UNIT #78	42-079-33087	A.C.T. OPER CO	Injection	350	18,911	4,942–4,978
Active	XIT UNIT #125W	42-079-00293	HILCORP ENGY CO	Injection	500	18,885	4,850–5,200
Active	NORTH CENTRAL LEVELLAND UNIT #226W	42-079-02156	HILCORP ENGY CO	UIC	350	18,629	4,713–4,885
Active	WRIGHT, STUART P. #17	42-079-33304	HEXP OPER, LLC	Injection	1,000	18,508	4,700–4,900
Active	DUGGAN SLAUGHTER UNIT #809NW	42-079-32814	CROSS TIMBERS ENGY, LLC	Injection	1,000	18,458	4,200–5,300
Active	WOODLEY, F. L. #90W	42-079-33287	HILCORP ENGY CO	Injection	1,500	18,357	4,850–5,500
Active	WOODLEY, F. L. #27	42-079-01543	HILCORP ENGY CO	Injection	600	18,192	4,850–5,150
Active	STARNES UNIT #1104W	42-079-00343	AVIATOR ENERGY, LLC	Injection	200	17,926	4,988–5,083
Active	DUGGAN SLAUGHTER UNIT #810NW	42-079-32812	CROSS TIMBERS ENGY, LLC	Injection	1,000	17,912	4,200–5,300
Active	MASTEN UNIT #A 14	42-079-30971	TALIS ENERGY INC.	Injection	385	17,493	4,700–5,000
Active	STARNES UNIT #1701	42-079-01690	AVIATOR ENERGY, LLC	Injection	250	17,490	4,938–5,030
Active	WOODLEY, F. L. #80W	42-079-33210	HILCORP ENGY CO	Injection	600	17,489	4,850–5,150
Active	FROST, JACK "A" #1	42-079-31139	BROWN, H.L. OPER, L.L.C	Injection	1,000	17,340	5,033–5,065
Active	BOYD #16W	42-079-00176	HILCORP ENGY CO	Injection	5,000	17,279	4,700–5,200
Active	XIT UNIT #57W	42-079-00950	HILCORP ENGY CO	Injection	500	16,996	4,850–5,200
Active	WRIGHT, J.M. UNIT #61	42-079-32972	A.C.T. OPER CO	Injection	350	16,935	4,800–5,102
Active	VEAL #14W	42-079-00095	EXTEX OPER CO	Injection	500	16,901	4,864–5,032
Active	VEAL #16RW	42-079-32764	EXTEX OPER CO	Injection	500	16,835	4,900–5,050
Active	MASTEN UNIT #J 13	42-079-01593	TALIS ENERGY INC.	Injection	2,500	16,657	4,700–4,967
Active	BOYD MALLET UNIT #23W	42-079-01803	EXTEX OPER CO	Injection	500	16,530	4,800–5,165
Active	WRIGHT, STUART P. #18	42-079-33305	HEXP OPER, LLC	Injection	1,000	16,279	4,680–4,885
Active	MASTEN UNIT #J 17R	42-079-32780	TALIS ENERGY INC.	Injection	385	16,265	4,800–5,000
Active	WEST LEVELLAND UNIT #194W	42-079-31582	HILCORP ENGY CO	Injection	300	16,056	4,650–5,000
Active	WOODLEY, F. L. #53W	42-079-30451	HILCORP ENGY CO	Injection	600	15,969	4,850–5,150
Active	BOYD MALLET UNIT #96	42-079-32897	EXTEX OPER CO	Injection	1,000	15,876	4,800–5,165
Active	IGOE-SMITH OPER. AREA #89	42-079-30344	OCCIDENTAL PERMIAN EOR, LLC	Injection	5,150	15,205	4,700–5,400
Active	IGOE-SMITH OPER. AREA #110	42-079-33015	OCCIDENTAL PERMIAN EOR, LLC	Injection	5,150	15,133	4,700–5,400
Active	NORTH-WRIGHT #A 9	42-079-31404	WALKABOUT OPER, LLC	Injection	800	14,985	4,850–4,880
Active	MALLET UNIT #174W	42-079-01461	HILCORP ENGY CO	Injection	2,000	14,773	4,400–5,407
Active	BOYD #17W	42-079-00177	HILCORP ENGY CO	Injection	5,000	14,681	4,700–5,200
Active	DUGGAN SLAUGHTER UNIT #301AW	42-079-00651	CROSS TIMBERS ENGY, LLC	Injection	1,000	14,444	4,966–5,048
Active	XIT UNIT #67W	42-079-02525	HILCORP ENGY CO	Injection	500	14,317	4,850–5,200
Active	XIT UNIT #38W	42-079-01970	HILCORP ENGY CO	Injection	3,000	14,238	4,700–5,000
Active	SLAUGHTER, NW. (SAN ANDRES) UNIT #26W	42-079-00071	AVIATOR ENERGY, LLC	UIC	500	14,210	4,902–5,021
Active	WEST LEVELLAND UNIT #155W	42-079-00150	HILCORP ENGY CO	Injection	300	14,129	4,650–5,000
Active	MASTEN, F. O. "D" #12	42-079-32714	EXTEX OPER CO	Injection	300	14,083	4,800–5,200
Active	SMITH-IGOE #3W	42-079-00308	HILCORP ENGY CO	Injection	5,000	13,834	4,800–5,200
Active	VEAL #3W	42-079-00084	EXTEX OPER CO	UIC	500	13,800	4,878–4,986
Active	T. L. B. UNIT #13W	42-079-00079	EXTEX OPER CO	UIC	500	13,606	4,920–5,038
Active	NORTH CENTRAL LEVELLAND UNIT #92	42-079-01680	HILCORP ENGY CO	Injection	400	12,829	4,700–4,900
Active	SOUTHEAST WHITEFACE UNIT #2003	42-079-31581	RAW OIL & GAS, INC	Injection	500	12,743	4,943–4,968
Active	NORTH-WRIGHT #B 8	42-079-31367	WALKABOUT OPER, LLC	Injection	800	12,663	4,700–4,910
Active	NORTH CENTRAL LEVELLAND UNIT #51W	42-079-01448	HILCORP ENGY CO	Injection	1,000	12,543	4,775–4,830
Active	BOYD MALLET UNIT #62W	42-079-01986	EXTEX OPER CO	Injection	500	12,519	4,800–5,165
Active	XIT UNIT #32W	42-079-01992	HILCORP ENGY CO	Injection	500	12,480	4,850–5,200
Active	CLOUSER, M. H. #6A	42-079-33191	RED TAIL EXPL, LLC	Injection	1,650	12,457	4,500–4,950
Active	DUGGAN SLAUGHTER UNIT #381AW	42-079-00667	CROSS TIMBERS ENGY, LLC	Injection	1,000	12,394	4,980–5,055
Active	NORTH CENTRAL LEVELLAND UNIT #177W	42-079-01609	HILCORP ENGY CO	Injection	650	11,953	4,560–5,000
Active	SEIBER, E. H. #5	42-079-31457	JOPLIN OIL CO., INC	Injection	300	11,406	5,089–5,128
Active	WRIGHT UNIT #820W	42-079-30367	EXTEX OPER CO	Injection	1,000	11,331	4,816–4,958
Active	XIT UNIT #177	42-079-31311	HILCORP ENGY CO	Injection	500	11,274	4,850–5,200
Active	SLAUGHTER, NW. (SAN ANDRES) UNIT #29W	42-079-02212	AVIATOR ENERGY, LLC	Injection	600	11,080	4,672–5,014
Active	STANTON-MASTEN #2	42-079-30466	CROSS TIMBERS ENGY, LLC	Injection	400	10,488	4,897–5,089
Active	NORTH CENTRAL LEVELLAND UNIT #227W	42-079-01623	HILCORP ENGY CO	Injection	1,000	10,312	4,750–4,900
Active	LANDON (SAN ANDRES) UNIT #63W	42-079-01709	PRASAD, HARI PROD CO	Injection	200	10,256	5,101–5,132
Active	NORTH CENTRAL LEVELLAND UNIT #259	42-079-01620	HILCORP ENGY CO	Injection	0	10,011	4,700
Active	LANDON (SAN ANDRES) UNIT #81W	42-079-01710	PRASAD, HARI PROD CO	Injection	500	9,912	5,088–5,135
Active	BOYD MALLET UNIT #24W	42-079-01805	EXTEX OPER CO	Injection	500	9,905	4,800–5,165
Active	MASTEN UNIT #J 9	42-079-00033	TALIS ENERGY INC.	Injection	385	9,755	4,800–5,000
Active	WRIGHT UNIT #819W	42-079-30364	EXTEX OPER CO	Injection	1,000	9,369	4,935–4,960
Active	T. L. B. UNIT #12W	42-079-00078	EXTEX OPER CO	UIC	500	9,293	4,908–5,015
Active	WRIGHT, J.M. UNIT #79	42-079-33025	A.C.T. OPER CO	Injection	350	9,004	4,330–4,949
Active	DUGGAN SLAUGHTER UNIT #O508NW	42-079-32830	CROSS TIMBERS ENGY, LLC	Injection	1,000	9,001	5,000–5,050
Active	MASTEN UNIT #D 5	42-079-32777	TALIS ENERGY INC.	Injection	385	8,670	4,800–5,000
Active	NORTH CENTRAL LEVELLAND UNIT #440	42-079-31920	HILCORP ENGY CO	Injection	800	8,594	4,600–5,000
Active	WHITEFACE UNIT #102RW	42-079-33074	DOUBLE BARREL OIL LLC	Injection	300	8,553	4,700–5,000
Active	MASTEN, F. O. #9W	42-079-30849	CROSS TIMBERS ENGY, LLC	Injection	300	8,536	4,989–5,082
Active	WEST LEVELLAND UNIT #36W	42-079-02564	HILCORP ENGY CO	Injection	2,240	8,522	4,500–5,000
Active	MASTEN UNIT #C 3	42-079-30956	TALIS ENERGY INC.	Injection	385	8,478	4,600–5,000
Active	WRIGHT UNIT #203W	42-079-02190	EXTEX OPER CO	Injection	500	8,367	4,918–4,967
Active	XIT UNIT #61W	42-079-02003	HILCORP ENGY CO	Injection	500	8,280	4,850–5,200
Active	MASTEN UNIT #A 21	42-079-32783	TALIS ENERGY INC.	Injection	385	8,251	4,800–5,000
Active	XIT UNIT #68	42-079-02004	HILCORP ENGY CO	Injection	500	8,203	4,850–5,200
Active	MASTEN #702	42-079-32351	BRIDWELL OIL CO	Injection	300	8,135	4,750–4,930
Active	WEST LEVELLAND UNIT #63W	42-079-01921	HILCORP ENGY CO	Injection	300	8,022	4,650–5,000
Active	MALLET UNIT #143	42-079-01494	HILCORP ENGY CO	Injection	2,000	7,951	4,400–5,353
Active	HUDSON "C" #55W	42-079-32594	JOPLIN OIL CO., INC	Injection	500	7,897	5,059–5,086

page 5 of 22 · 2,112 wells

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Source: RRC UIC well master and H-10 injection filings. H-10s are annual filings on staggered anniversaries — injected volumes shown through 2025-06, the newest month with complete reporting; recent months are never estimated.