Produced water and disposal in Nolan County
Every injection and disposal permit in the county, what each well is permitted to take, what its operator reported, and who is reporting daily. Earthquakes in the area →
Nolan County has 193 active injection and disposal wells, 67 of them permitted for disposal, with 548,189 barrels a day of permitted capacity.
Operators reported 13 million barrels injected on H-10 filings in the twelve months to September 2025, up 1% on the year before, about 6% of what the permits allow.
Grayrock Energy II, LLC is the largest injector in the county, with 4.0 million barrels reported across 71 active wells.
- 193
- active injection wells, 67 for disposal
- 548K
- bbl/d permitted capacity
- 12.6M
- bbl reported, H-10 year to Sep 2025 +1%
- 6%
- of permitted capacity used
- 851
- UIC permits on file, all time
Reported injection, by month
H-10 FILINGS · TEN YEARS TO SEP 2025
Last 12 months 12,583,804 · prior 12 12,505,979(+1%)
Who injects here
Operators with active permits in the county, by reported H-10 volume over the settled year.
| Operator | Reported, bbl | Active wells | Capacity bbl/d |
|---|---|---|---|
| Grayrock Energy II, LLC | 4M | 71 | 85.8K |
| Scout Energy Management LLC | 3.87M | 17 | 71.8K |
| R2Q Operating LLC | 1.12M | 10 | 59.5K |
| D.K.D. | 866K | 5 | 63.5K |
| Clear Fork, Incorporated | 714K | 7 | 24K |
| Citation Oil & Gas Corp. | 433K | 29 | 61.2K |
| Daylight Petroleum LLC | 333K | 2 | 5.5K |
| Patton, E. N. Oil Company, Inc. | 322K | 1 | 5K |
| Double M Petroproperties, Inc. | 260K | 2 | 8K |
| Sojourner Drilling Corporation | 197K | 3 | 17K |
| Lone Star Operations LLC | 111K | 3 | 6K |
| Gungoll, Carl E. Exploration LLC | 71.3K | 2 | 26.4K |
| Goodrock Natural Resources, LLC | 53.9K | 7 | 39.7K |
| Chisholm Operating, Inc. | 50.4K | 1 | 1K |
| Golden Oil and Ranch, LLC | 47.6K | 1 | 500 |
| Williams Oil Company | 28.5K | 1 | 1K |
| DJ & T Services, LLC | 24.9K | 1 | 2K |
| Shaida, John H. | 16.7K | 1 | 250 |
| VX Operating, LLC | 15.2K | 1 | 500 |
| Nec Operating, LLC | 14.6K | 1 | 300 |
Injection permits
851 UIC PERMITS · 193 ACTIVE · PAGE 9 OF 9
Active permits first, by reported volume, then canceled, plugged, and never-activated permits.
| Well | Operator | Status | Purpose | Reported, bbl | bbl/d permitted | Zone, ft | Permitted |
|---|---|---|---|---|---|---|---|
| Southwest Nena Lucia Unit #1210 | Oryx Energy Company | Canceled | Enhanced recovery | — | — | 6,664–6,708 | Apr 24, 1972 |
| Southwest Nena Lucia Unit #3110 | Oryx Energy Company | Canceled | Disposal | — | — | — | — |
| Southwest Nena Lucia Unit #3112 | Oryx Energy Company | Canceled | Disposal | — | — | — | Jan 1, 1962 |
| Southwest Nena Lucia Unit #4614 | Oryx Energy Company | Canceled | Disposal | — | — | — | — |
| Southwest Nena Lucia Unit #4812 | Oryx Energy Company | Canceled | Disposal | — | — | — | Jan 1, 1962 |
| Rowan & Hope Unit #11 | Williams Oil Company | Plugged | Enhanced recovery | — | — | — | — |
| Rowan & Hope Unit #19 | Williams Oil Company | Plugged | Enhanced recovery | — | — | — | Nov 4, 1956 |
| Rowan & Hope Unit #121 | Williams Oil Company | Plugged | Enhanced recovery | — | — | — | — |
| R-H Canyon Sand Unit #101 | Humphrey-Bashford Oil, Inc. | Canceled | Disposal | — | — | — | — |
| Sweet, Louis Etal #3 | Hickman-Jordan-Halligan Ranches | Canceled | Disposal | — | — | 4,036 | — |
| Sweetwater /Canyon Sand/ Unit #32 | Canyon Resources, Inc | Canceled | Enhanced recovery | — | — | — | — |
| Sweetwater /Canyon Sand/ Unit #43 | Canyon Resources, Inc | Canceled | Enhanced recovery | — | — | — | — |
| Robertson Levi #2 | Paramount Pipe & Supply Co, Inc. | Canceled | Disposal | — | — | — | — |
| Jaggers, C. L., Estate #4W | David, Roger D. Inc. | Canceled | Enhanced recovery | — | — | — | May 8, 1980 |
| Causseaux, J. Etta #1 | Reeves Company, The | Canceled | Disposal | — | — | 3,230–870 | — |
| Freeman-Carter #2D | Pen-Mar Petroleum Company | Canceled | Disposal | — | — | — | — |
| Frost, Jack #1 A | Frost Oil Company, Inc. | Canceled | Disposal | — | — | — | — |
| Frost, Jack #2 | Frost Oil Company, Inc. | Canceled | Disposal | — | — | — | — |
| Hicks, J. L. -183- #1 | Coke Oil, Inc. | Canceled | Disposal | — | — | 5,441 | — |
| Sears, Lance -A- #1D | Star Production, Inc. | Canceled | Disposal | — | — | 3,400–3,800 | May 8, 1981 |
| Frost, Jack #1 | Frost Oil Company, Inc. | Plugged | Disposal | — | — | — | — |
| Beckham Tannehill Unit #901W | Texaco Inc. | Canceled | Enhanced recovery | — | — | — | — |
| TXL -K- #1D | Texaco Inc. | Canceled | Disposal | — | — | — | — |
| North Nena Lucia Unit #2 | Wagner, Duer & Co. | Canceled | Enhanced recovery | — | — | — | — |
| Whorton-Smith Unit #2 | Neeb, H. L. | Canceled | Disposal | — | — | 4,080–4,100 | Apr 29, 1982 |
| Rice, J. M. "C" #1 | Burger, F.W. Inc. | Canceled | Disposal | — | — | — | Oct 21, 1982 |
| TXL #8 | O'Ryan Oil and Gas | Canceled | Disposal | — | — | 3,430–3,780 | Jan 21, 1983 |
| Howard, L. S. #2 | Montgomery Production, Inc. | Canceled | Disposal | — | — | — | Jan 20, 1983 |
| Withers, Gertrude #2 | Bentley Oil and Gas Company | Canceled | Disposal | — | — | — | Dec 28, 1982 |
| Gesin, Patsy R. "A" #1 | Feagan Energy, Inc. | Canceled | Disposal | — | — | — | Apr 22, 1983 |
| Howard, L. S. #4 | Markay Oil & Gas Company | Canceled | Disposal | — | — | 6,671–370 | May 2, 1985 |
| Boston #1 | Highground, Inc. | Canceled | Disposal | — | — | 6,710 | Dec 1, 1983 |
| Southwest Nena Lucia Unit #1202W | Oryx Energy Company | Canceled | Enhanced recovery | — | — | 6,890 | Feb 8, 1984 |
| Southwest Nena Lucia Unit #1212 | Oryx Energy Company | Canceled | Enhanced recovery | — | — | 6,773 | Feb 8, 1984 |
| Southwest Nena Lucia Unit #2405W | Oryx Energy Company | Canceled | Enhanced recovery | — | — | 6,978 | Feb 8, 1984 |
| Southwest Nena Lucia Unit #2601 | Oryx Energy Company | Canceled | Enhanced recovery | — | — | 6,894 | Feb 8, 1984 |
| Boyd -C- #8 | Texaco Inc. | Plugged | Disposal | — | — | 2,964 | — |
| Boyd -C- #3 | Texaco Inc. | Canceled | Enhanced recovery | — | — | 5,758 | Jun 14, 1971 |
| Southwest Nena Lucia Unit #2401 | Oryx Energy Company | Canceled | Enhanced recovery | — | — | 6,884 | Jul 25, 1984 |
| Allyn B #3 | Gruy Petroleum Management Co. | Canceled | Enhanced recovery | — | — | 2,922 | Aug 10, 1984 |
| Turner, J.P. #1 | Progas Properties, Inc. | Canceled | Disposal | — | — | 6,650 | Mar 21, 1984 |
| North Nena Lucia Unit #48 | Wagner, Duer & Co. | Canceled | Enhanced recovery | — | — | 6,900 | Feb 10, 1966 |
| Whitehat Ranch #4 | Patterson, Ben M., Jr. | Canceled | Enhanced recovery | — | — | 4,052 | Feb 28, 1985 |
| Hicks, J.L. Jr. -187- #3 | Sharpe Energy Company | Plugged | Disposal | — | — | 4,892–4,926 | Oct 15, 1985 |
| Aycock #1 | Bell, Johnny Inc. | Canceled | Enhanced recovery | — | — | 6,066 | Aug 30, 1985 |
| Jordan Ranch "F" #1 | Sun Expl. & Prod. Co.-Abilene | Plugged | Disposal | — | — | 6,500 | Jan 8, 1986 |
| Alderman, M.L. et Al #1 | Lytle Creek Operating, Inc. | Canceled | Enhanced recovery | — | — | 3,562 | Jan 20, 1986 |
| Young 74 #1 | Miocene Oil & Gas, Ltd. | Plugged | Disposal | — | — | 6,508 | May 9, 1986 |
| Lake Sweetwater Strawnodom) Unit #17 | Encore Energy, Inc. | Canceled | Enhanced recovery | — | — | 5,796 | Jul 2, 1986 |
| Nolan Fee #2 | Texaco Inc. | Plugged | Enhanced recovery | — | — | 6,107–6,124 | — |
| Rowan & Hope Unit #31 | Williams Oil Company | Plugged | Enhanced recovery | — | — | 6,052–6,356 | Dec 31, 1973 |
Latest disposal drilling permits
W-1 drilling permits in the county tagged as produced-water disposal.
| Issued | Permit | Operator | Lease / well |
|---|---|---|---|
| Apr 18, 2023 | 889364 | D.K.D. | Roscoe SWD #1 35333746 |
| Dec 15, 2015 | 812533 | Cinnabar Operating, LLC | Brooks Ranch SWD #1D 35332304 |
| Jul 28, 2015 | 808692 | Santa Rita Holdings, LLC | Cox SWD #1 35333575 |
| Jun 1, 1981 | 119677 | A & a Transports, Inc. | Sears, Lance "A" #1 D 35330140 |
| Oct 17, 1979 | 60929 | Price, W. H. | Whiteside #2D 35330739 |
About this data
RRC UIC well master and H-10 injection reports, settled through Sep 2025; TexNet daily injection for the last settled month; disposal permit tags from Petrora's sector classifier.
Developers: this page as JSON is GET /v1/data/water/tx/nolan, documented in the API reference.