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 #118W	42-079-31071	DOUBLE BARREL OIL LLC	Injection	1,040	36,131	4,600–5,000
Active	DUGGAN SLAUGHTER UNIT #421AW	42-079-00676	CROSS TIMBERS ENGY, LLC	Injection	1,000	36,081	4,969–5,053
Active	DEAN, C. S. "A" #172W	42-079-02051	HILCORP ENGY CO	Injection	500	35,991	4,835–5,200
Active	VEAL #7W	42-079-00088	EXTEX OPER CO	UIC	500	35,978	4,891–4,993
Active	NORTH CENTRAL LEVELLAND UNIT #222W	42-079-01371	HILCORP ENGY CO	Injection	1,000	35,873	4,600–5,000
Active	MILLER-WRIGHT UNIT #2010W	42-079-01246	KIMBELL OPER CO	Injection	600	35,814	4,750–5,050
Active	DEAN "I" #8W	42-079-01184	EXTEX OPER CO	Injection	500	35,593	4,983–5,075
Active	DUGGAN SLAUGHTER UNIT #1411NW	42-079-32834	CROSS TIMBERS ENGY, LLC	Injection	1,000	35,391	5,000–5,050
Active	IGOE-SMITH OPER. AREA #85	42-079-30338	OCCIDENTAL PERMIAN EOR, LLC	Injection	5,150	35,313	4,700–5,400
Active	WEST LEVELLAND UNIT #226W	42-079-32143	HILCORP ENGY CO	Injection	300	35,307	4,650–5,000
Active	MILLER-WRIGHT UNIT #106W	42-079-01231	KIMBELL OPER CO	Injection	600	35,159	4,750–5,050
Active	DEAN, C. S. "A" #71W	42-079-02067	HILCORP ENGY CO	Injection	500	35,148	4,835–5,200
Active	DEAN, C. S. "A" #158	42-079-20111	HILCORP ENGY CO	Injection	500	34,837	4,850–5,200
Active	LANDON (SAN ANDRES) UNIT #76W	42-079-02126	PRASAD, HARI PROD CO	Injection	500	34,737	4,993–5,068
Active	DEAN, C. S. "A" #133W	42-079-02079	HILCORP ENGY CO	Injection	500	34,339	4,835–5,200
Active	DEAN, C. S. "A" #151W	42-079-20041	HILCORP ENGY CO	Injection	500	34,225	4,835–5,200
Active	NORTH CENTRAL LEVELLAND UNIT #90W	42-079-01699	HILCORP ENGY CO	Injection	3,180	33,935	4,300–4,885
Active	DEAN, C. S. "A" #213	42-079-32578	HILCORP ENGY CO	Injection	500	33,821	4,850–5,200
Active	DEAN, C. S. "A" #58	42-079-02077	HILCORP ENGY CO	Injection	500	33,662	4,835–5,200
Active	DEAN, CARRIE SLAUGHTER "C" #17	42-079-30329	HILCORP ENGY CO	Injection	5,000	33,613	4,800–5,200
Active	WHITEFACE UNIT #5W	42-079-00534	DOUBLE BARREL OIL LLC	Injection	300	33,472	4,700–4,950
Active	NORTH CENTRAL LEVELLAND UNIT #345W	42-079-31265	HILCORP ENGY CO	Injection	1,000	33,463	4,812–4,850
Active	DEAN, C. S. "A" #21W	42-079-20045	HILCORP ENGY CO	Injection	500	33,263	4,835–5,200
Active	DEAN, C. S. "A" #261W	42-079-33069	HILCORP ENGY CO	Injection	500	33,077	4,898–5,060
Active	MILLER-WRIGHT UNIT #2033	42-079-31622	KIMBELL OPER CO	Injection	650	32,578	4,750–5,050
Active	NORTH-WRIGHT #B 2	42-079-31662	WALKABOUT OPER, LLC	Injection	800	32,527	4,680–4,900
Active	WRIGHT, J.M. UNIT #67	42-079-32985	A.C.T. OPER CO	Injection	350	32,403	4,800–4,980
Active	NORTH-WRIGHT #A 12	42-079-31476	WALKABOUT OPER, LLC	Injection	800	32,364	4,824–4,884
Active	NORTH CENTRAL LEVELLAND UNIT #224W	42-079-02158	HILCORP ENGY CO	Injection	3,000	32,033	4,600–4,900
Active	NORTH CENTRAL LEVELLAND UNIT #137W	42-079-02318	HILCORP ENGY CO	Injection	650	31,837	4,560–5,000
Active	WEST LEVELLAND UNIT #55W	42-079-00904	HILCORP ENGY CO	Injection	300	31,567	4,650–5,000
Active	WHITEFACE UNIT #100W	42-079-30423	DOUBLE BARREL OIL LLC	Injection	1,060	31,517	4,600–4,900
Active	DEAN, C. S. "A" #68W	42-079-20086	HILCORP ENGY CO	Injection	500	31,452	4,835–5,200
Active	LANDON (SAN ANDRES) UNIT #131W	42-079-02121	PRASAD, HARI PROD CO	Injection	500	31,409	5,050–5,082
Active	DEAN, C. S. "A" #24X	42-079-31315	HILCORP ENGY CO	Injection	500	31,249	4,850–5,033
Active	DEAN "I" #6W	42-079-01182	EXTEX OPER CO	Injection	500	30,957	4,952–5,051
Active	NORTH CENTRAL LEVELLAND UNIT #93W	42-079-01380	HILCORP ENGY CO	Injection	300	30,932	4,465–4,868
Active	MORTON UNIT #3801	42-079-00302	A.C.T. OPER CO	Injection	950	30,853	4,700–5,000
Active	MILLER-WRIGHT UNIT #207W	42-079-01243	KIMBELL OPER CO	Injection	500	30,534	4,750–5,050
Active	WEST LEVELLAND UNIT #214W	42-079-32128	HILCORP ENGY CO	Injection	300	30,284	4,650–5,000
Active	NORTH CENTRAL LEVELLAND UNIT #60W	42-079-01381	HILCORP ENGY CO	Injection	1,000	30,120	4,802–4,870
Active	DEAN, C. S. "A" #120W	42-079-02070	HILCORP ENGY CO	Injection	500	30,120	4,835–5,200
Active	WRIGHT, J.M. UNIT #88	42-079-33157	A.C.T. OPER CO	Injection	350	30,052	4,800–5,000
Active	DEAN, C. S. "A" #214	42-079-32579	HILCORP ENGY CO	Injection	500	29,899	4,850–5,200
Active	CONOCO-DEAN UNIT #153	42-079-32592	EXTEX OPER CO	Injection	1,000	29,881	4,900–5,190
Active	MASTEN #5	42-079-32221	JOPLIN OIL CO., INC	Injection	300	29,855	4,988–5,072
Active	DEAN, C. S. "A" #41X	42-079-10218	HILCORP ENGY CO	Injection	500	29,746	4,835–5,200
Active	DEAN, C. S. "A" #67W	42-079-02100	HILCORP ENGY CO	Injection	500	29,691	4,835–5,200
Active	WEST LEVELLAND UNIT #137W	42-079-00906	HILCORP ENGY CO	Injection	300	29,668	4,650–5,000
Active	DEAN, C. S. "A" #212	42-079-32581	HILCORP ENGY CO	Injection	500	29,584	4,850–5,200
Active	WRIGHT, J.M. UNIT #82	42-079-33086	A.C.T. OPER CO	Injection	350	29,540	4,934–4,992
Active	DEAN, C. S. "A" #118X	42-079-30514	HILCORP ENGY CO	Injection	500	28,963	4,835–5,200
Active	IGOE-SMITH OPER. AREA #108	42-079-32980	OCCIDENTAL PERMIAN EOR, LLC	Injection	5,150	28,921	4,700–5,400
Active	SLAUGHTER, NW. (SAN ANDRES) UNIT #16	42-079-00062	AVIATOR ENERGY, LLC	Injection	600	28,340	4,920–5,022
Active	SLAUGHTER, NW. (SAN ANDRES) UNIT #84W	42-079-32749	AVIATOR ENERGY, LLC	Injection	600	28,150	4,800–5,100
Active	IGOE-SMITH OPER. AREA #116	42-079-33194	OCCIDENTAL PERMIAN EOR, LLC	Injection	5,150	27,896	4,700–5,400
Active	DEAN, C. S. "A" #119W	42-079-10208	HILCORP ENGY CO	Injection	500	27,769	4,835–5,200
Active	WEST LEVELLAND UNIT #281W	42-079-32354	HILCORP ENGY CO	Injection	300	27,748	4,750–5,000
Active	LANDON (SAN ANDRES) UNIT #58W	42-079-02329	PRASAD, HARI PROD CO	Injection	500	27,459	5,036–5,073
Active	MALLET UNIT #307	42-079-30172	HILCORP ENGY CO	Injection	2,000	27,379	4,400–5,435
Active	WHITEFACE UNIT #106	42-079-30796	DOUBLE BARREL OIL LLC	Injection	300	27,330	4,894–4,928
Active	MILLER-WRIGHT UNIT #2030W	42-079-31034	KIMBELL OPER CO	Injection	600	27,326	4,750–5,050
Active	SOUTH MALLET UNIT #329W	42-079-02278	WINN OPER, LLC	Injection	1,200	27,229	4,800–5,600
Active	CONOCO-DEAN UNIT #148	42-079-32464	EXTEX OPER CO	Injection	1,000	27,142	4,900–5,190
Active	SOUTH MALLET UNIT #310W	42-079-02260	WINN OPER, LLC	Injection	1,200	27,134	4,800–5,600
Active	STANTON, JOE L. TRUSTEE #37	42-079-32697	EXTEX OPER CO	Injection	300	26,930	4,800–5,200
Active	IGOE-SMITH OPER. AREA #90W	42-079-30343	OCCIDENTAL PERMIAN EOR, LLC	Injection	5,150	26,786	4,700–5,400
Active	DUGGAN SLAUGHTER UNIT #251AW	42-079-00641	CROSS TIMBERS ENGY, LLC	Injection	1,000	26,605	4,984–5,052
Active	BUCKSHOT UNIT #87W	42-079-01755	HUNT CIMARRON LTD. PARTNERSHIP	Injection	1,000	26,598	4,933–5,041
Active	WHITEFACE UNIT #114W	42-079-30893	DOUBLE BARREL OIL LLC	Injection	1,060	26,463	4,600–5,000
Active	HENRY, JOHN #8	42-079-33047	YUCCA ENGY, INC	Injection	400	26,446	4,893–4,989
Active	WEST LEVELLAND UNIT #227W	42-079-32126	HILCORP ENGY CO	Injection	300	26,164	4,650–5,000
Active	WEST LEVELLAND UNIT #358W	42-079-32535	HILCORP ENGY CO	Injection	300	26,069	4,700–5,000
Active	STARNES UNIT #1708W	42-079-01691	AVIATOR ENERGY, LLC	Injection	200	26,063	4,996–5,034
Active	IGOE-SMITH OPER. AREA #114	42-079-33094	OCCIDENTAL PERMIAN EOR, LLC	Injection	5,150	25,903	4,700–5,400
Active	XIT UNIT #55W	42-079-01964	HILCORP ENGY CO	Injection	3,000	25,834	4,700–5,000
Active	WEST LEVELLAND UNIT #279W	42-079-32345	HILCORP ENGY CO	Injection	300	25,686	4,750–5,000
Active	WEST LEVELLAND UNIT #225W	42-079-32150	HILCORP ENGY CO	Injection	300	25,663	4,650–5,000
Active	NORTHWEST MALLET UNIT #49W	42-079-01013	OCCIDENTAL PERMIAN EOR, LLC	Injection	500	25,594	4,893–4,952
Active	WEST LEVELLAND UNIT #180W	42-079-02426	HILCORP ENGY CO	Injection	175	25,587	4,760–4,898
Active	WEST LEVELLAND UNIT #298W	42-079-32389	HILCORP ENGY CO	Injection	300	25,547	4,750–5,000
Active	LANDON (SAN ANDRES) UNIT #77W	42-079-02127	PRASAD, HARI PROD CO	Injection	500	25,143	4,997–5,093
Active	XIT UNIT #81W	42-079-00952	HILCORP ENGY CO	Injection	500	25,096	4,850–5,200
Active	SMITH-IGOE #5W	42-079-00310	HILCORP ENGY CO	Injection	5,000	24,864	4,800–5,200
Active	MASTEN UNIT #J 10	42-079-01774	TALIS ENERGY INC.	Injection	2,500	24,787	4,800–5,000
Active	IGOE-SMITH OPER. AREA #87	42-079-30339	OCCIDENTAL PERMIAN EOR, LLC	Injection	5,150	24,526	4,700–5,400
Active	CONOCO-DEAN UNIT #143	42-079-32381	EXTEX OPER CO	Injection	1,000	24,526	4,900–5,190
Active	DUGGAN SLAUGHTER UNIT #431AW	42-079-00677	CROSS TIMBERS ENGY, LLC	Injection	1,000	24,257	5,005–5,053
Active	WEST LEVELLAND UNIT #203W	42-079-32198	HILCORP ENGY CO	Injection	300	24,252	4,850–4,900
Active	NORTH CENTRAL LEVELLAND UNIT #57W	42-079-01684	HILCORP ENGY CO	Injection	1,000	24,032	4,560–5,000
Active	MASTEN "C" #17	42-079-32710	EXTEX OPER CO	Injection	300	23,663	4,800–5,200
Active	BOYD #40	42-079-30004	HILCORP ENGY CO	Injection	5,000	23,626	4,600–5,200
Active	WHITEFACE UNIT #67	42-079-01407	DOUBLE BARREL OIL LLC	Injection	150	23,526	4,900–4,943
Active	WRIGHT, J.M. UNIT #51	42-079-00142	A.C.T. OPER CO	Injection	350	23,210	4,900–4,972
Active	BLAKE "88" #1	42-079-33220	VISION OIL AND GAS LLC	Injection	2,000	23,076	4,770–5,050
Active	CONOCO-DEAN UNIT #16W	42-079-00497	EXTEX OPER CO	Injection	1,000	22,905	4,967–5,063
Active	DUGGAN SLAUGHTER UNIT #171AW	42-079-00614	CROSS TIMBERS ENGY, LLC	Injection	1,000	22,801	4,948–5,040
Active	XIT UNIT #39W	42-079-01969	HILCORP ENGY CO	Injection	500	22,592	4,850–5,200
Active	T. L. B. UNIT #27W	42-079-32767	EXTEX OPER CO	Injection	500	22,056	4,850–5,050
Active	XIT UNIT #29W	42-079-01983	HILCORP ENGY CO	Injection	500	21,997	4,850–5,200

page 4 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.