Saltwater Disposal Wells in Howard County

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

Active Wells

1,180

Permitted Capacity

6.0M bbl/d

Injected 12mo (thru 2025-06)

488.6M bbl

UIC Permits All Time

3,068

Howard County produced-water market → capacity trends, top holders, permit velocity

Earthquakes in Howard County → seismicity & the disposal link, from TexNet

STATUS	LEASE / WELL	API	OPERATOR	TYPE	PERMITTED BBL/D	INJECTED 12MO	ZONE (FT)
Active	CLAY, H. R. #65W	42-227-34907	GRAYROCK ENERGY II, LLC	Injection	600	--	2,250–3,200
Active	DENMAN /CLARK/ #6W	42-227-33115	GRAYROCK ENERGY II, LLC	Injection	600	--	2,400–2,900
Active	SETTLES, W. R. #22CW	42-227-33516	CITATION OIL & GAS CORP	Injection	600	--	2,100–2,600
Active	BELLNOLIA #12	42-227-35877	NEW HEIGHT ENERGY, LLC	Injection	600	--	2,375–2,850
Active	CLAY, H. R., -B- #9W	42-227-02342	O'RYAN OIL AND GAS	Injection	600	--	1,740–1,902
Active	SNYDER -B- #12W	42-227-31977	UNITED OIL & SHALE LLC	Injection	600	--	2,749–2,859
Active	SNYDER -B- #11W	42-227-31978	UNITED OIL & SHALE LLC	Injection	600	--	2,736–2,847
Active	GUITAR, EARL JR. -B- #14	42-227-32818	HIGH DESERT RESOURCES, L.L.C.	Injection	600	--	3,044–3,065
Active	W.R. SATTERWHITE #1	42-227-32597	CRESCENT ENGY OPER, LLC	Injection	600	--	8,580–8,870
Active	CHALK, G. O.-G- #19W	42-227-10242	CITATION OIL & GAS CORP	Injection	600	--	2,081–2,224
Active	SNYDER -B- #13W	42-227-32549	UNITED OIL & SHALE LLC	Injection	600	--	2,622–3,214
Active	SETTLES, W. R. -A- #155	42-227-34431	CITATION OIL & GAS CORP	Injection	600	--	2,000–2,575
Active	CHALK ESTATE #18W	42-227-31098	CITATION OIL & GAS CORP	Injection	600	--	1,998–2,240
Active	DENMAN /CLARK/ #8W	42-227-33116	GRAYROCK ENERGY II, LLC	Injection	600	--	2,400–2,900
Active	SNYDER -B- #14W	42-227-32548	UNITED OIL & SHALE LLC	Injection	600	--	2,500–2,895
Active	CLAY, H. R. #64W	42-227-34468	GRAYROCK ENERGY II, LLC	Injection	600	--	2,250–3,200
Active	CLAY, H. R.-A- #32W	42-227-10091	LANDMARK IP, LLC	UIC	600	--	2,143–2,508
Active	EDWARDS, M. M. #14WI	42-227-35024	NEW HEIGHT ENERGY, LLC	Injection	500	--	2,495–2,800
Active	DODGE, GRANVILLE M., EST. #138W	42-227-30469	GRAYROCK ENERGY II, LLC	Injection	500	--	2,346–2,711
Active	SNYDER -E- #6W	42-227-30495	UNITED OIL & SHALE LLC	UIC	500	--	2,687–2,827
Active	DOUTHIT, E. W. DE #203	42-227-34631	GRAYROCK ENERGY II, LLC	Injection	500	--	2,750–3,200
Active	EDWARDS, M. M. #12WI	42-227-35007	NEW HEIGHT ENERGY, LLC	Injection	500	--	2,495–2,800
Active	DODGE ESTATE #24W	42-227-31935	BASA RES, INC	Injection	500	--	2,450–2,800
Active	CLAY, H. R. -C- #1W	42-227-20142	LANDMARK IP, LLC	UIC	500	--	1,729–1,781
Active	SETTLES -D- #6SQ	42-227-01545	BASA RES, INC	Injection	500	--	1,612–1,778
Active	SNYDER -E- #9W	42-227-30879	UNITED OIL & SHALE LLC	UIC	500	--	2,671–2,757
Active	DODGE, GRANVILLE M., EST. #233	42-227-34471	GRAYROCK ENERGY II, LLC	Injection	500	--	2,100–2,782
Active	M. H. O'DANIEL # 12 #12WI	42-227-35003	NEW HEIGHT ENERGY, LLC	Injection	500	--	2,495–2,800
Active	HOWARD GLASSCOCK EAST UNIT #1704D	42-227-00694	APC OPER PARTNERSHIP	Injection	500	--	2,425–3,300
Active	M. H. O'DANIEL # 12 #11WI	42-227-35004	NEW HEIGHT ENERGY, LLC	Injection	500	--	2,495–2,800
Active	SNYDER -A- #10W	42-227-30878	UNITED OIL & SHALE LLC	UIC	500	--	2,692–2,802
Active	DENMAN, L. C., -A- #14W	42-227-35174	GRAYROCK ENERGY II, LLC	Injection	500	--	2,250–2,900
Active	DODGE ESTATE #26W	42-227-31938	BASA RES, INC	Injection	500	--	2,450–2,800
Active	SNYDER -E- #7W	42-227-30496	UNITED OIL & SHALE LLC	UIC	500	--	2,711–2,808
Active	DENMAN, L. C., -A- #13	42-227-35173	GRAYROCK ENERGY II, LLC	Injection	500	--	2,200–3,000
Active	WEST MOORE UNIT #89WI	42-227-01812	JOHNSON OPERATING COMPANY, LLC.	Injection	400	--	3,130–3,173
Active	WEST MOORE UNIT #57WI	42-227-34255	JOHNSON OPERATING COMPANY, LLC.	Injection	400	--	3,159–3,300
Active	CLAY, H. R.-A- #39	42-227-10936	LANDMARK IP, LLC	Injection	400	--	2,211–2,507
Active	SNYDER, SUSIE B. #18	42-227-33655	NEW HEIGHT ENERGY, LLC	Injection	400	--	2,450–3,050
Active	DODGE, GRANVILLE M., EST. #198W	42-227-31435	GRAYROCK ENERGY II, LLC	Injection	400	--	2,300–2,950
Active	HEWITT -B- #3WI	42-227-03709	JOHNSON OPERATING COMPANY, LLC.	Injection	400	--	3,182–3,215
Active	WEST MOORE UNIT #69WI	42-227-04161	JOHNSON OPERATING COMPANY, LLC.	Injection	400	--	3,176–3,215
Active	DODGE, GRANVILLE M., EST. #124W	42-227-10235	GRAYROCK ENERGY II, LLC	Injection	400	--	2,684–2,739
Active	WEST MOORE UNIT #73WI	42-227-04166	JOHNSON OPERATING COMPANY, LLC.	Injection	400	--	3,207–3,235
Active	WEST MOORE UNIT #74WI	42-227-31886	JOHNSON OPERATING COMPANY, LLC.	Injection	400	--	3,178–3,215
Active	HEWITT -C- #2WI	42-227-00376	JOHNSON OPERATING COMPANY, LLC.	Injection	400	--	3,196–3,212
Active	HEWITT -A- #3WI	42-227-03708	JOHNSON OPERATING COMPANY, LLC.	Injection	400	--	3,139–3,202
Active	HEWITT -A- #4WI	42-227-03710	JOHNSON OPERATING COMPANY, LLC.	Injection	400	--	3,180–3,215
Active	DODGE, GRANVILLE M., EST. #196W	42-227-31455	GRAYROCK ENERGY II, LLC	Injection	400	--	2,300–2,950
Active	TXL, B. S. -D- #3345W	42-227-35524	GRAYROCK ENERGY II, LLC	Injection	400	--	2,550–3,050
Active	DODGE, GRANVILLE M., EST. #142W	42-227-30464	GRAYROCK ENERGY II, LLC	Injection	400	--	2,100–2,900
Active	DODGE, GRANVILLE M., EST. #199W	42-227-31423	GRAYROCK ENERGY II, LLC	Injection	400	--	2,300–2,950
Active	W. M. IDEN #5WI	42-227-02504	JOHNSON OPERATING COMPANY, LLC.	Injection	400	--	3,115–3,205
Active	DODGE, GRANVILLE M., EST. #200	42-227-31424	GRAYROCK ENERGY II, LLC	Injection	400	--	2,574–2,724
Active	DODGE, GRANVILLE M., EST. #226W	42-227-34197	GRAYROCK ENERGY II, LLC	Injection	400	--	1,842–2,900
Active	DODGE, GRANVILLE M., EST. #160W	42-227-30539	GRAYROCK ENERGY II, LLC	Injection	400	--	2,497–2,742
Active	FOSTER, W. L. #1 #37W	42-227-03186	BCE-MACH III LLC	Injection	400	--	2,631–2,945
Active	DODGE, GRANVILLE M., EST. #161W	42-227-30538	GRAYROCK ENERGY II, LLC	Injection	400	--	2,505–2,722
Active	DODGE, GRANVILLE M., EST. #163W	42-227-30636	GRAYROCK ENERGY II, LLC	Injection	400	--	2,397–2,600
Active	DODGE, GRANVILLE M., EST. #164W	42-227-30886	GRAYROCK ENERGY II, LLC	Injection	400	--	2,100–2,900
Active	DODGE, GRANVILLE M., EST. #170W	42-227-31015	GRAYROCK ENERGY II, LLC	Injection	400	--	2,454–2,748
Active	W. M. IDEN #26WI	42-227-00750	JOHNSON OPERATING COMPANY, LLC.	Injection	400	--	3,135–3,185
Active	W. M. IDEN #25WI	42-227-02456	JOHNSON OPERATING COMPANY, LLC.	Injection	400	--	3,176–3,232
Active	DODGE, GRANVILLE M., EST. #205W	42-227-31657	GRAYROCK ENERGY II, LLC	Injection	400	--	2,300–2,950
Active	DODGE, GRANVILLE M., EST. #184W	42-227-31039	GRAYROCK ENERGY II, LLC	Injection	400	--	2,417–2,824
Active	DODGE, GRANVILLE M., EST. #182W	42-227-31042	GRAYROCK ENERGY II, LLC	Injection	400	--	2,399–2,675
Active	DODGE, GRANVILLE M., EST. #113W	42-227-04003	GRAYROCK ENERGY II, LLC	Injection	400	--	2,400–2,950
Active	DODGE, GRANVILLE M., EST. #176W	42-227-30697	GRAYROCK ENERGY II, LLC	Injection	400	--	2,300–2,950
Active	W. M. IDEN #21WI	42-227-01792	JOHNSON OPERATING COMPANY, LLC.	Injection	400	--	3,120–3,180
Active	W. M. IDEN #11WI	42-227-00527	JOHNSON OPERATING COMPANY, LLC.	Injection	400	--	3,135–3,234
Active	DODGE, GRANVILLE M., EST. #112W	42-227-04004	GRAYROCK ENERGY II, LLC	Injection	400	--	2,469–2,750
Active	W. M. IDEN #8WI	42-227-02513	JOHNSON OPERATING COMPANY, LLC.	Injection	400	--	3,150–3,240
Active	W. M. IDEN #4WI	42-227-02505	JOHNSON OPERATING COMPANY, LLC.	Injection	400	--	3,135–3,234
Active	WEST MOORE UNIT #78WI	42-227-04190	JOHNSON OPERATING COMPANY, LLC.	Injection	400	--	3,196–3,220
Active	WEST MOORE UNIT #81WI	42-227-00284	JOHNSON OPERATING COMPANY, LLC.	Injection	400	--	3,200–3,251
Active	WEST MOORE UNIT #77WI	42-227-04188	JOHNSON OPERATING COMPANY, LLC.	Injection	400	--	3,184–3,257
Active	W. M. IDEN #19	42-227-00751	JOHNSON OPERATING COMPANY, LLC.	Injection	400	--	3,135–3,175
Active	DENMAN, L. C., -A- #12W	42-227-31451	GRAYROCK ENERGY II, LLC	Injection	400	--	2,300–2,950
Active	W. M. IDEN #97WI	42-227-04156	JOHNSON OPERATING COMPANY, LLC.	Injection	400	--	3,170–3,205
Active	WEST MOORE UNIT #96WI	42-227-04157	JOHNSON OPERATING COMPANY, LLC.	Injection	400	--	3,235–3,260
Active	DENMAN, L. C., -A- #11W	42-227-31452	GRAYROCK ENERGY II, LLC	Injection	400	--	2,300–2,950
Active	DENMAN, L. C., -A- #10W	42-227-31453	GRAYROCK ENERGY II, LLC	Injection	400	--	2,300–2,950
Active	WEST MOORE UNIT #46WI	42-227-00938	JOHNSON OPERATING COMPANY, LLC.	Injection	400	--	3,142–3,188
Active	WEST MOORE UNIT #55WI	42-227-00891	JOHNSON OPERATING COMPANY, LLC.	Injection	400	--	3,122–3,180
Active	WEST MOORE UNIT #52WI	42-227-03863	JOHNSON OPERATING COMPANY, LLC.	Injection	400	--	2,954–3,240
Active	WEST MOORE UNIT #51WI	42-227-03862	JOHNSON OPERATING COMPANY, LLC.	Injection	400	--	2,954–3,240
Active	DODGE, GRANVILLE M., EST. #207W	42-227-32060	GRAYROCK ENERGY II, LLC	Injection	400	--	2,400–2,875
Active	WEST MOORE UNIT #48WI	42-227-00889	JOHNSON OPERATING COMPANY, LLC.	Injection	400	--	3,142–3,175
Active	W. M. IDEN #93WI	42-227-00375	JOHNSON OPERATING COMPANY, LLC.	Injection	400	--	3,123–3,136
Active	WEST MOORE UNIT #37WI	42-227-00093	JOHNSON OPERATING COMPANY, LLC.	Injection	400	--	3,160–3,200
Active	WEST MOORE UNIT #104WI	42-227-33135	JOHNSON OPERATING COMPANY, LLC.	Injection	400	--	3,226–3,236
Active	WEST MOORE UNIT #100WI	42-227-33153	JOHNSON OPERATING COMPANY, LLC.	Injection	400	--	3,146–3,208
Active	WEST MOORE UNIT #91WI	42-227-01814	JOHNSON OPERATING COMPANY, LLC.	Injection	400	--	3,162–3,179
Active	DODGE, GRANVILLE M., EST. #231	42-227-34462	GRAYROCK ENERGY II, LLC	Injection	400	--	2,250–2,900
Active	DODGE, GRANVILLE M., EST. #242	42-227-34614	GRAYROCK ENERGY II, LLC	Injection	400	--	2,250–2,900
Active	DODGE, GRANVILLE M., EST. #178W	42-227-30797	GRAYROCK ENERGY II, LLC	Injection	400	--	2,417–2,842
Active	EDWARDS, M.M. -C- #2	42-227-31773	NEW HEIGHT ENERGY, LLC	Disposal	400	--	2,102–2,638
Active	WEST MOORE UNIT #108WI	42-227-33139	JOHNSON OPERATING COMPANY, LLC.	Injection	400	--	3,128–3,230
Active	DODGE, GRANVILLE M., EST. #134W	42-227-30418	GRAYROCK ENERGY II, LLC	Injection	400	--	2,256–2,835
Active	WEST MOORE UNIT #86WI	42-227-01639	JOHNSON OPERATING COMPANY, LLC.	Injection	400	--	3,158–3,165

page 11 of 31 · 3,068 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.