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	WHITEFACE UNIT #78W	42-079-30085	DOUBLE BARREL OIL LLC	Injection	250	72,118	4,852–4,904
Active	MILLER-WRIGHT UNIT #2022W	42-079-30398	KIMBELL OPER CO	Injection	600	72,071	4,750–5,050
Active	MALLET UNIT #168W	42-079-01503	HILCORP ENGY CO	Injection	2,000	71,832	4,400–5,387
Active	SLAUGHTER, NW. (SAN ANDRES) UNIT #30W	42-079-02211	AVIATOR ENERGY, LLC	UIC	500	71,560	4,925–5,016
Active	WEST LEVELLAND UNIT #115W	42-079-00911	HILCORP ENGY CO	Injection	300	71,397	4,650–5,000
Active	WOODLEY, F. L. #45	42-079-30198	HILCORP ENGY CO	Injection	600	71,233	4,850–5,150
Active	MALLET UNIT #126AW	42-079-30158	HILCORP ENGY CO	Injection	2,000	70,854	4,400–5,356
Active	WOODLEY, F. L. #97W	42-079-33293	HILCORP ENGY CO	Injection	1,500	70,848	4,850–5,500
Active	SOUTHWEST LEVELLAND UNIT #86W	42-079-02539	HILCORP ENGY CO	Injection	1,500	70,163	4,701–5,000
Active	MALLET UNIT #709	42-079-01476	HILCORP ENGY CO	Injection	2,000	70,071	4,400–5,413
Active	DEAN, CARRIE SLAUGHTER "C" #3W	42-079-01041	HILCORP ENGY CO	Injection	5,000	70,037	4,700–5,200
Active	WHITEFACE UNIT #7W	42-079-00561	DOUBLE BARREL OIL LLC	Injection	250	69,835	4,735–4,897
Active	WOODLEY, F. L. #50WH	42-079-30447	HILCORP ENGY CO	Injection	600	69,112	4,850–5,000
Active	MALLET UNIT #1155W	42-079-32632	HILCORP ENGY CO	Injection	2,000	68,925	4,400–5,325
Active	LANDON (SAN ANDRES) UNIT #54W	42-079-02325	PRASAD, HARI PROD CO	Injection	800	68,480	5,015–5,081
Active	MALLET UNIT #197R	42-079-30171	HILCORP ENGY CO	Injection	2,500	68,217	4,400–5,056
Active	MILLER-WRIGHT UNIT #107W	42-079-01232	KIMBELL OPER CO	Injection	600	68,118	4,750–5,050
Active	DUGGAN SLAUGHTER UNIT #1009NW	42-079-32815	CROSS TIMBERS ENGY, LLC	Injection	1,000	68,069	4,200–5,300
Active	WEST LEVELLAND UNIT #158W	42-079-00158	HILCORP ENGY CO	Injection	300	67,840	4,750–5,000
Active	IGOE-SMITH OPER. AREA #84	42-079-30337	OCCIDENTAL PERMIAN EOR, LLC	Injection	5,150	67,609	4,700–5,400
Active	MR. WOLF SWD #1	42-079-33366	RMB OPER LLC	Disposal	20,000	67,050	5,250–11,911
Active	CONOCO-DEAN UNIT #144	42-079-32446	EXTEX OPER CO	Injection	1,000	66,877	4,900–5,190
Active	MILLER-WRIGHT UNIT #2012W	42-079-01248	KIMBELL OPER CO	Injection	500	66,515	4,750–5,050
Active	MILLER-WRIGHT UNIT #112W	42-079-30992	KIMBELL OPER CO	Injection	600	66,251	4,750–5,050
Active	MILLER-WRIGHT UNIT #2020W	42-079-30325	KIMBELL OPER CO	Injection	600	65,985	4,750–5,050
Active	SOUTH MALLET UNIT #324W	42-079-02274	WINN OPER, LLC	Injection	1,200	65,303	4,800–5,600
Active	BOYD #2W	42-079-00162	HILCORP ENGY CO	Injection	5,000	64,860	4,700–5,200
Active	MALLET UNIT #426	42-079-01153	HILCORP ENGY CO	Injection	2,000	64,824	4,400–5,422
Active	WHITEFACE UNIT #85W	42-079-30288	DOUBLE BARREL OIL LLC	Injection	250	63,817	4,900–4,925
Active	SLAUGHTER, NW. (SAN ANDRES) UNIT #50W	42-079-30278	AVIATOR ENERGY, LLC	Injection	0	63,360	4,901–4,994
Active	WEST LEVELLAND UNIT #247W	42-079-32358	HILCORP ENGY CO	Injection	300	63,130	4,750–5,000
Active	MALLET UNIT #722W	42-079-30283	HILCORP ENGY CO	Injection	2,500	62,300	4,400–5,135
Active	MALLET UNIT #404A	42-079-32016	HILCORP ENGY CO	Injection	2,300	62,251	4,400–5,444
Active	SLAUGHTER, NW. (SAN ANDRES) UNIT #11	42-079-00120	AVIATOR ENERGY, LLC	Injection	600	62,160	4,925–5,018
Active	DUGGAN SLAUGHTER UNIT #153W	42-079-00610	CROSS TIMBERS ENGY, LLC	Injection	1,000	62,018	4,982–5,041
Active	XIT UNIT #82W	42-079-02005	HILCORP ENGY CO	Injection	3,000	61,823	4,650–5,066
Active	BOYD MALLET UNIT #74	42-079-10214	EXTEX OPER CO	Injection	1,000	61,801	4,800–5,165
Active	WHITEFACE UNIT #92	42-079-30313	DOUBLE BARREL OIL LLC	Injection	300	61,469	4,895–4,928
Active	WOODLEY, F. L. #33W	42-079-01565	HILCORP ENGY CO	Injection	600	61,330	4,850–5,150
Active	DUGGAN SLAUGHTER UNIT #909N	42-079-32801	CROSS TIMBERS ENGY, LLC	Injection	1,000	61,112	4,999–5,024
Active	BOYD #45W	42-079-30293	HILCORP ENGY CO	Injection	5,000	60,138	4,700–5,200
Active	LANDON (SAN ANDRES) UNIT #56W	42-079-02327	PRASAD, HARI PROD CO	Injection	800	59,747	5,026–5,101
Active	DUGGAN SLAUGHTER UNIT #331AW	42-079-00657	CROSS TIMBERS ENGY, LLC	Injection	1,000	59,617	4,994–5,051
Active	SEABOARD-WRIGHT #26	42-079-32960	HEXP OPER, LLC	Injection	1,000	59,518	4,693–5,000
Active	WRIGHT, J.M. UNIT #75	42-079-33001	A.C.T. OPER CO	Injection	350	59,343	4,800–4,984
Active	IGOE-SMITH OPER. AREA #40W	42-079-01133	OCCIDENTAL PERMIAN EOR, LLC	Injection	1,500	59,232	4,944–5,062
Active	MALLET LAND & CATTLE CO. #11	42-079-00233	THREE SPAN OIL & GAS, INC	Injection	1,000	58,966	4,973–5,074
Active	MILLER-WRIGHT UNIT #208W	42-079-01244	KIMBELL OPER CO	Injection	500	58,898	4,750–5,050
Active	DUGGAN SLAUGHTER UNIT #26W	42-079-01705	CROSS TIMBERS ENGY, LLC	Injection	1,000	58,751	4,946–5,024
Active	CONOCO-DEAN UNIT #76W	42-079-01214	EXTEX OPER CO	Injection	1,000	58,643	5,013–5,047
Active	WHITEFACE UNIT #23W	42-079-00553	DOUBLE BARREL OIL LLC	Injection	250	58,533	4,742–4,910
Active	WHITEFACE UNIT #50W	42-079-01642	DOUBLE BARREL OIL LLC	Injection	250	58,339	4,878–4,967
Active	DUGGAN SLAUGHTER UNIT #81AW	42-079-00589	CROSS TIMBERS ENGY, LLC	Injection	500	58,133	5,006–5,077
Active	WEST LEVELLAND UNIT #228W	42-079-32138	HILCORP ENGY CO	Injection	300	58,092	4,650–5,000
Active	WRIGHT, D. S. "J" #6W	42-079-01794	KIMBELL OPER CO	Injection	600	57,130	4,860–4,918
Active	SEABOARD-WRIGHT #36A	42-079-33300	HEXP OPER, LLC	Injection	1,000	57,073	4,710–4,910
Active	MILLER-WRIGHT UNIT #2025W	42-079-31032	KIMBELL OPER CO	Injection	600	57,002	4,750–5,050
Active	WHITEFACE UNIT #161	42-079-32331	DOUBLE BARREL OIL LLC	Injection	300	56,912	4,916–4,940
Active	BLAKE, W. R #20	42-079-32311	AVIATOR ENERGY, LLC	Injection	2,000	56,908	5,100–5,300
Active	SOUTHWEST LEVELLAND UNIT #92W	42-079-30099	HILCORP ENGY CO	Injection	1,000	56,825	4,500–5,006
Active	BOYD #51W	42-079-30431	HILCORP ENGY CO	Injection	5,000	56,746	4,700–5,200
Active	WOODLEY, F. L. #54W	42-079-31873	HILCORP ENGY CO	Injection	600	56,594	4,850–5,150
Active	WRIGHT, J.M. UNIT #62	42-079-32967	A.C.T. OPER CO	Injection	350	56,246	4,800–4,970
Active	MALLET UNIT #713W	42-079-01485	HILCORP ENGY CO	Injection	2,300	56,129	4,400–5,427
Active	BOYD MALLET UNIT #8W	42-079-01806	EXTEX OPER CO	Injection	500	55,949	4,800–5,465
Active	MALLET UNIT #151AW	42-079-33097	HILCORP ENGY CO	Injection	5,000	55,934	4,700–5,160
Active	REED WRIGHT "B" #14	42-079-32108	HEXP OPER, LLC	Injection	1,000	55,917	4,700–5,000
Active	MILLER-WRIGHT UNIT #2013W	42-079-01249	KIMBELL OPER CO	Injection	500	55,643	4,750–5,050
Active	REED WRIGHT "B" #11A	42-079-33298	HEXP OPER, LLC	Injection	1,000	55,610	4,730–4,910
Active	NORTH CENTRAL LEVELLAND UNIT #141W	42-079-01660	HILCORP ENGY CO	Injection	1,000	55,472	4,560–5,000
Active	WEST LEVELLAND UNIT #84W	42-079-01619	HILCORP ENGY CO	Injection	2,500	55,215	4,600–4,882
Active	WRIGHT, J.M. UNIT #66	42-079-32988	A.C.T. OPER CO	Injection	350	55,101	4,800–5,000
Active	WEST LEVELLAND UNIT #198W	42-079-32144	HILCORP ENGY CO	Injection	300	54,696	4,650–5,000
Active	WRIGHT, D. S. "J" #1W	42-079-01787	KIMBELL OPER CO	Injection	600	54,327	4,785–4,938
Active	NORTHWEST MALLET UNIT #79W	42-079-01006	OCCIDENTAL PERMIAN EOR, LLC	Injection	5,000	54,133	4,700–5,200
Active	MALLET UNIT #1103W	42-079-30205	HILCORP ENGY CO	Injection	2,500	53,518	4,400–5,350
Active	REED WRIGHT "B" #13	42-079-32062	HEXP OPER, LLC	Injection	600	53,046	4,834–4,888
Active	IGOE-SMITH OPER. AREA #24W	42-079-01117	OCCIDENTAL PERMIAN EOR, LLC	Injection	5,150	52,904	4,700–5,400
Active	MORTON UNIT #2102W	42-079-31135	A.C.T. OPER CO	Injection	950	52,868	4,700–5,000
Active	NORTH CENTRAL LEVELLAND UNIT #185	42-079-01408	HILCORP ENGY CO	Injection	1,000	52,578	4,560–5,000
Active	WHITEFACE UNIT #86W	42-079-30279	DOUBLE BARREL OIL LLC	Injection	1,000	52,536	4,612–4,925
Active	MALLET UNIT #1523W	42-079-33275	HILCORP ENGY CO	Injection	0	52,329	4,400–5,170
Active	WRIGHT, J.M. UNIT #33	42-079-00128	A.C.T. OPER CO	Injection	350	52,310	4,882–4,973
Active	WHITEFACE UNIT #96	42-079-30311	DOUBLE BARREL OIL LLC	Injection	300	52,049	4,922–4,953
Active	CONOCO-DEAN UNIT #106	42-079-30471	EXTEX OPER CO	Injection	1,000	52,033	5,006–5,042
Active	WHITEFACE UNIT #59W	42-079-01639	DOUBLE BARREL OIL LLC	Injection	250	51,502	4,903–4,941
Active	WHITEFACE UNIT #117	42-079-31072	DOUBLE BARREL OIL LLC	Injection	300	51,306	4,879–4,912
Active	WRIGHT, J.M. UNIT #70	42-079-32996	A.C.T. OPER CO	Injection	350	51,204	4,940–4,970
Active	BOYD #20W	42-079-00180	HILCORP ENGY CO	Injection	5,000	51,123	4,700–5,200
Active	CONOCO-DEAN UNIT #80W	42-079-00464	EXTEX OPER CO	Injection	1,000	50,090	5,016–5,046
Active	IGOE-SMITH OPER. AREA #37W	42-079-01130	OCCIDENTAL PERMIAN EOR, LLC	Injection	5,150	49,895	4,700–5,400
Active	IGOE-SMITH OPER. AREA #9W	42-079-01193	OCCIDENTAL PERMIAN EOR, LLC	Injection	5,150	49,510	4,700–5,400
Active	WEST LEVELLAND UNIT #129W	42-079-01914	HILCORP ENGY CO	Injection	1,500	49,291	4,500–4,927
Active	WOODLEY, F. L. #3W	42-079-01520	HILCORP ENGY CO	Injection	600	48,965	4,850–5,150
Active	WEST LEVELLAND UNIT #187W	42-079-30421	HILCORP ENGY CO	Injection	300	48,956	4,650–5,000
Active	MALLET UNIT #1112W	42-079-30270	HILCORP ENGY CO	Injection	2,500	48,914	4,400–5,115
Active	IGOE-SMITH OPER. AREA #34W	42-079-01127	OCCIDENTAL PERMIAN EOR, LLC	Injection	5,150	48,895	4,700–5,400
Active	BOYD #18	42-079-00178	HILCORP ENGY CO	Injection	5,000	48,511	4,700–5,200
Active	WEST LEVELLAND UNIT #127W	42-079-01926	HILCORP ENGY CO	Injection	300	48,504	4,650–5,000
Active	WOODLEY, F. L. #49W	42-079-30448	HILCORP ENGY CO	Injection	600	48,494	4,850–5,150

page 2 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.