Saltwater Disposal Wells in Hockley County

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

Active Wells

2,367

Permitted Capacity

6.9M bbl/d

Injected 12mo (thru 2025-06)

165.8M bbl

UIC Permits All Time

4,003

STATUS	LEASE / WELL	API	OPERATOR	TYPE	PERMITTED BBL/D	INJECTED 12MO	ZONE (FT)
Active	NORTH CENTRAL LEVELLAND UNIT #256	42-219-33239	HILCORP ENGY CO	Injection	1,000	6,503	4,827–4,863
Active	WEST SUNDOWN UNIT #023	42-219-32893	OXY USA EOR, LLC	Injection	5,200	6,482	4,600–5,600
Active	SUNDOWN SLAUGHTER UNIT #7030	42-219-31011	BCE-MACH III LLC	Injection	2,200	6,451	4,700–5,200
Active	MITCHELL #3	42-219-34108	WALKABOUT OPER, LLC	Injection	300	6,395	4,650–4,910
Active	SLAUGHTER, A. A. ESTATE #80W	42-219-35756	BURK ROYALTY CO., LTD	Injection	800	6,238	5,910–5,920
Active	SLAUGHTER ESTATE UNIT #327	42-219-02432	OCCIDENTAL PERMIAN EOR, LLC	Injection	5,000	6,222	4,500–5,200
Active	SOUTHEAST LEVELLAND UNIT #383	42-219-37416	OCCIDENTAL PERMIAN EOR, LLC	Injection	5,150	6,220	4,500–5,100
Active	MALLET #52W	42-219-01420	OXY USA WTP EOR, LLC	Injection	1,000	6,196	4,874–4,989
Active	CENTRAL MALLET UNIT #326	42-219-33373	OCCIDENTAL PERMIAN EOR, LLC	Injection	1,800	6,130	4,894–5,046
Active	CENTRAL MALLET UNIT #98	42-219-00849	OCCIDENTAL PERMIAN EOR, LLC	Injection	1,800	6,123	4,950–5,085
Active	SOUTHEAST LEVELLAND UNIT #60W	42-219-02558	OCCIDENTAL PERMIAN EOR, LLC	Injection	1,000	5,838	4,688–4,982
Active	LEVELLAND UNIT #1164	42-219-36758	OCCIDENTAL PERMIAN EOR, LLC	Injection	5,000	5,614	4,550–5,200
Active	HAMILL UNIT #602	42-219-31780	EL RAN INC	Injection	500	5,610	4,733–4,774
Active	WILSON, MAPLE #17W	42-219-01258	HILCORP ENGY CO	Injection	3,150	5,328	4,200–4,995
Active	CENTRAL MALLET UNIT #293	42-219-31391	OCCIDENTAL PERMIAN EOR, LLC	Injection	1,800	5,216	4,850–5,150
Active	SLAUGHTER ESTATE UNIT #387	42-219-34292	OCCIDENTAL PERMIAN EOR, LLC	Injection	5,000	5,103	4,800–5,200
Active	SUNDOWN UNIT #102	42-219-37376	HILCORP ENGY CO	Injection	5,300	5,065	4,600–5,300
Active	NORTH CENTRAL LEVELLAND UNIT #125W	42-219-01316	HILCORP ENGY CO	Injection	1,000	5,065	4,560–5,000
Active	CENTRAL MALLET UNIT #329	42-219-34032	OCCIDENTAL PERMIAN EOR, LLC	Injection	1,800	4,977	4,938–5,047
Active	MALLET UNIT #111	42-219-01137	HILCORP ENGY CO	Injection	2,000	4,827	4,000–5,335
Active	TEXACO SLAUGHTER ESTATE #21W	42-219-37499	BCE-MACH III LLC	Injection	2,200	4,819	7,400–8,200
Active	WEST RKM UNIT #96W	42-219-02008	OCCIDENTAL PERMIAN EOR, LLC	Injection	5,000	4,561	4,500–5,200
Active	SLAUGHTER, A. A. ESTATE #73W	42-219-35233	BURK ROYALTY CO., LTD	Injection	1,200	4,422	5,909–5,921
Active	SOUTHEAST LEVELLAND UNIT #69W	42-219-00087	OCCIDENTAL PERMIAN EOR, LLC	Injection	1,000	4,411	4,688–5,005
Active	SLAUGHTER, A. A. ESTATE #87W	42-219-36248	BURK ROYALTY CO., LTD	Injection	1,200	4,369	5,850–6,640
Active	SLAUGHTER ESTATE UNIT #268	42-219-30461	OCCIDENTAL PERMIAN EOR, LLC	Injection	5,000	4,213	4,700–5,200
Active	COBLE, W. T. "A" NCT-1 #49	42-219-35992	BCE-MACH III LLC	Injection	500	4,107	4,650–4,900
Active	MALLET UNIT #502W	42-219-00325	HILCORP ENGY CO	Injection	2,000	4,070	4,400–5,393
Active	SOUTHEAST LEVELLAND UNIT #59W	42-219-02688	OCCIDENTAL PERMIAN EOR, LLC	Injection	1,000	3,973	4,674–4,986
Active	MALLET UNIT #504	42-219-00327	HILCORP ENGY CO	Injection	2,000	3,872	4,400–5,402
Active	SLAUGHTER ESTATE UNIT #436	42-219-02404	OCCIDENTAL PERMIAN EOR, LLC	Injection	5,000	3,822	4,600–5,200
Active	SLAUGHTER, BOB #609W	42-219-36509	BCE-MACH III LLC	Injection	2,200	3,763	7,735–8,144
Active	NORTH CENTRAL LEVELLAND UNIT #30W	42-219-01044	HILCORP ENGY CO	Injection	1,350	3,763	4,800–4,836
Active	SLAUGHTER ESTATE UNIT #2CO	42-219-33724	OCCIDENTAL PERMIAN EOR, LLC	Injection	5,000	3,737	4,700–5,200
Active	IVEY #2W	42-219-35938	BURK ROYALTY CO., LTD	Injection	800	3,605	7,056–8,021
Active	DELOACHE "A" #3	42-219-33553	WALKABOUT OPER, LLC	Injection	300	3,558	4,732–4,774
Active	SLAUGHTER #2X	42-219-34864	WALKABOUT OPER, LLC	Injection	2,000	3,326	4,460–4,863
Active	YELLOWHOUSE UNIT #23W	42-219-01570	HILCORP ENGY CO	Injection	2,550	3,296	4,450–4,581
Active	YELLOWHOUSE UNIT #79	42-219-32465	HILCORP ENGY CO	Injection	2,550	3,296	4,539–4,570
Active	YELLOWHOUSE UNIT #105	42-219-35247	HILCORP ENGY CO	Injection	2,500	3,296	4,456–4,608
Active	YELLOWHOUSE UNIT #106	42-219-35249	HILCORP ENGY CO	Injection	1,000	3,296	4,480–4,608
Active	YELLOWHOUSE UNIT #4W	42-219-02346	HILCORP ENGY CO	Injection	700	3,296	4,480–4,569
Active	YELLOWHOUSE UNIT #18W	42-219-02497	HILCORP ENGY CO	Injection	500	3,296	4,542–4,606
Active	YELLOWHOUSE UNIT #78	42-219-32433	HILCORP ENGY CO	Injection	500	3,296	4,565–4,596
Active	MASON, GLEN "A" #2W	42-219-35547	BURK ROYALTY CO., LTD	Injection	500	3,266	5,910–5,971
Active	SOUTHEAST LEVELLAND UNIT #12W	42-219-02510	OCCIDENTAL PERMIAN EOR, LLC	Injection	5,150	3,232	4,550–5,100
Active	MALLET UNIT #156	42-219-01118	HILCORP ENGY CO	Injection	2,000	3,212	4,400–5,385
Active	CENTRAL MALLET UNIT #53	42-219-00727	OCCIDENTAL PERMIAN EOR, LLC	Injection	5,200	3,033	4,944–5,035
Active	CENTRAL MALLET UNIT #390	42-219-36896	OCCIDENTAL PERMIAN EOR, LLC	Injection	5,000	2,904	4,800–5,200
Active	TEAGUE UNIT #3W	42-219-31770	BULLIN, R. E. OPER INC	Injection	200	2,895	5,998–6,020
Active	COONS, W. A. #59W	42-219-34754	HILCORP ENGY CO	Disposal	10,000	2,734	9,800–12,400
Active	SOUTHEAST WHITEFACE UNIT #1908	42-219-36849	RAW OIL & GAS, INC	Injection	500	2,640	4,800–5,000
Active	WEST SUNDOWN UNIT #242	42-219-37437	OXY USA EOR, LLC	Injection	5,200	2,396	4,600–5,600
Active	NORTH CENTRAL LEVELLAND UNIT #76	42-219-02587	HILCORP ENGY CO	Injection	1,000	2,024	4,560–5,000
Active	NORTH CENTRAL LEVELLAND UNIT #112W	42-219-01098	HILCORP ENGY CO	Injection	1,000	1,991	4,560–5,000
Active	SLAUGHTER ESTATE UNIT #485	42-219-35042	OCCIDENTAL PERMIAN EOR, LLC	Injection	5,000	1,958	4,800–5,200
Active	NORTH CENTRAL LEVELLAND UNIT #149W	42-219-01306	HILCORP ENGY CO	Injection	1,000	1,937	4,560–5,000
Active	CENTRAL MALLET UNIT #94	42-219-00828	OCCIDENTAL PERMIAN EOR, LLC	Injection	1,800	1,894	4,929–5,079
Active	NORTHWEST MALLET UNIT #74W	42-219-00580	OCCIDENTAL PERMIAN EOR, LLC	Injection	5,000	1,856	4,600–5,200
Active	NORTH CENTRAL LEVELLAND UNIT #163W	42-219-00241	HILCORP ENGY CO	Injection	1,000	1,823	4,560–5,000
Active	SLAUGHTER, A. A. ESTATE #108W	42-219-31836	BURK ROYALTY CO., LTD	Injection	300	1,759	5,970–5,987
Active	HAMILL UNIT #704 A	42-219-35958	EL RAN INC	Injection	500	1,749	4,740–4,790
Active	SUNDOWN UNIT #77	42-219-36495	HILCORP ENGY CO	Injection	5,300	1,670	4,600–5,300
Active	LEVELLAND UNIT #144W	42-219-01040	OCCIDENTAL PERMIAN EOR, LLC	Injection	1,800	1,591	4,550–5,100
Active	DELOACHE, IRA P. #17W	42-219-33122	BCE-MACH III LLC	Injection	3,000	1,480	4,719–4,764
Active	NORTH CENTRAL LEVELLAND UNIT #120W	42-219-00220	HILCORP ENGY CO	Injection	500	1,226	4,764–4,805
Active	WATSON #5	42-219-36114	ROGERS, S. K. OIL, INC	Injection	700	1,072	4,420–4,526
Active	LEVELLAND #16	42-219-35107	CROSS TIMBERS ENGY, LLC	Injection	1,000	871	4,835–4,900
Active	NORTH CENTRAL LEVELLAND UNIT #153W	42-219-01080	HILCORP ENGY CO	Injection	1,000	789	4,560–5,000
Active	DELOACHE, IRA P. #10	42-219-32962	BCE-MACH III LLC	Injection	3,000	628	4,700–4,810
Active	CAMPBELL-EDWARDS #1	42-219-36112	ROGERS, S. K. OIL, INC	Injection	800	587	6,212–6,680
Active	LEVELLAND UNIT #532	42-219-30422	OCCIDENTAL PERMIAN EOR, LLC	Injection	5,000	582	4,550–5,100
Active	COBLE "C" #10W	42-219-32314	WALKABOUT OPER, LLC	Injection	1,200	556	4,820–4,934
Active	NORTH CENTRAL LEVELLAND UNIT #387W	42-219-33785	HILCORP ENGY CO	Injection	3,100	554	4,500–4,870
Active	KUNZ, F. #4	42-219-36677	TEXLAND PETRO, L.P	Injection	600	494	6,788–6,904
Active	LEVELLAND UNIT #266W	42-219-02032	OCCIDENTAL PERMIAN EOR, LLC	Injection	5,070	465	4,450–5,100
Active	MALLET UNIT #1150W	42-219-35849	HILCORP ENGY CO	Injection	2,500	444	4,400–5,350
Active	SLAUGHTER ESTATE UNIT #811	42-219-36557	OCCIDENTAL PERMIAN EOR, LLC	Injection	5,000	423	4,600–5,200
Active	EAST MALLET UNIT #62W	42-219-01134	HILCORP ENGY CO	Injection	1,950	342	4,700–5,150
Active	CENTRAL MALLET UNIT #374	42-219-36485	OCCIDENTAL PERMIAN EOR, LLC	Injection	5,000	337	4,600–5,300
Active	DELOACHE, IRA P. #32	42-219-33299	BCE-MACH III LLC	Injection	3,000	282	4,720–4,774
Active	LEVELLAND UNIT #529	42-219-30396	OCCIDENTAL PERMIAN EOR, LLC	Injection	5,000	215	4,550–5,100
Active	FIELDING UNIT #1R	42-219-36649	ROGERS, S. K. OIL, INC	Injection	800	200	6,150–6,720
Active	SLAUGHTER, A. A. ESTATE #150W	42-219-35844	BURK ROYALTY CO., LTD	Injection	1,200	182	6,466–6,564
Active	YELLOWHOUSE UNIT #36W	42-219-01563	HILCORP ENGY CO	Injection	500	156	4,578–4,660
Active	YELLOWHOUSE UNIT #28W	42-219-01564	HILCORP ENGY CO	Injection	700	154	4,596–4,641
Active	YELLOWHOUSE UNIT #66	42-219-01931	HILCORP ENGY CO	Injection	2,550	149	4,300–4,591
Active	YELLOWHOUSE UNIT #59W	42-219-01919	HILCORP ENGY CO	Injection	2,500	149	4,531–4,650
Active	YELLOWHOUSE UNIT #72W	42-219-01924	HILCORP ENGY CO	Injection	800	149	4,551–4,643
Active	CENTRAL MALLET UNIT #78	42-219-00737	OCCIDENTAL PERMIAN EOR, LLC	Injection	1,800	148	4,949–5,053
Active	YELLOWHOUSE UNIT #27	42-219-01565	HILCORP ENGY CO	Injection	2,550	146	4,605–4,644
Active	YELLOWHOUSE UNIT #125W	42-219-35250	HILCORP ENGY CO	Injection	2,500	141	4,500–4,657
Active	YELLOWHOUSE UNIT #33W	42-219-01573	HILCORP ENGY CO	Injection	2,550	134	4,607–4,689
Active	SLAUGHTER, A. A. ESTATE #109W	42-219-31968	BURK ROYALTY CO., LTD	Injection	300	133	5,968–5,986
Active	ELLWOOD "A" #158	42-219-34039	HILCORP ENGY CO	Injection	5,000	102	5,400–6,200
Active	MALLET #174	42-219-36893	OXY USA WTP EOR, LLC	Injection	5,000	95	4,700–5,200
Active	ELLWOOD "A" #65W	42-219-01622	HILCORP ENGY CO	Injection	5,000	94	5,650–6,200
Active	ELLWOOD "A" #62	42-219-01619	HILCORP ENGY CO	Injection	5,000	94	5,600–6,200
Active	ELLWOOD "A" #84W	42-219-00763	HILCORP ENGY CO	Injection	5,000	94	5,400–6,200
Active	ELLWOOD "A" #34W	42-219-00801	HILCORP ENGY CO	Injection	5,000	94	5,400–6,200

page 18 of 41 · 4,003 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.