FORMATIONS · RRC WELLBORE FILE
Queen
Reported as a top in 40,458 wells across 48 counties, at a median depth of 3,394 ft (1,489 to 4,065 ft in most wells). 4,090 of those wells were permitted in the last three years.
A well counts if any of its completion filings report this formation, whether it produces from it or drilled through it. Depths are measured depth as filed; typo depths exist, which is why ranges are percentiles, not extremes. About completion reports →
- 40.5K
- wells reporting a top
- 4,090
- permitted in last 3 years
- 48
- counties
- 3,394
- median top, ft
COMPUTED OCT 29, 2026 · REBUILT DAILY
Depth by county
Counties with at least five wells reporting the top. Bars are well counts.
| County | Wells | Median, ft | P10–P90 | Last 3 yrs |
|---|---|---|---|---|
| Midland | 6,823 | 3,717 | 3,362–4,161 | 1,133 |
| Martin | 5,512 | 3,474 | 2,797–4,019 | 1,041 |
| Andrews | 4,902 | 3,895 | 3,500–4,372 | 226 |
| Reagan | 3,038 | 2,450 | 1,900–3,026 | 628 |
| Ector | 2,854 | 3,610 | 3,115–4,220 | 68 |
| Pecos | 2,435 | 1,376 | 1,136–2,250 | 202 |
| Glasscock | 2,226 | 2,708 | 1,500–3,188 | 205 |
| Gaines | 2,193 | 3,750 | 3,424–4,245 | 147 |
| Crane | 1,763 | 2,386 | 2,181–2,953 | 272 |
| Howard | 1,231 | 1,687 | 1,400–2,410 | 14 |
| Crockett | 1,162 | 1,374 | 977–1,945 | 33 |
| Ward | 1,159 | 2,929 | 2,396–3,122 | 24 |
| Mitchell | 993 | 1,077 | 1,031–1,261 | 2 |
| Yoakum | 974 | 3,855 | 3,614–4,078 | 12 |
| Winkler | 851 | 3,050 | 2,700–3,400 | 17 |
| Hockley | 517 | 3,524 | 3,253–3,665 | 0 |
| Upton | 506 | 2,350 | 1,719–4,080 | 36 |
| Sterling | 386 | 1,596 | 1,150–1,840 | 4 |
| Scurry | 187 | 1,273 | 1,027–1,385 | 1 |
| Irion | 133 | 1,240 | 739–1,595 | 6 |
| Cochran | 130 | 3,652 | 3,437–3,710 | 1 |
| Garza | 92 | 1,448 | 1,278–1,989 | 0 |
| Terry | 82 | 3,833 | 3,554–4,107 | 2 |
| Dawson | 67 | 3,710 | 2,948–3,897 | 12 |
| Hale | 61 | 2,775 | 2,747–2,816 | 1 |
| Borden | 44 | 2,516 | 1,782–2,753 | 2 |
| Tom Green | 24 | 220 | 180–901 | 0 |
| Lamb | 18 | 2,864 | 2,697–2,883 | 0 |
| Zapata | 17 | 3,650 | 3,078–4,510 | 0 |
| Terrell | 13 | 1,800 | 1,137–2,072 | 0 |
| Webb | 13 | 3,000 | 1,399–6,179 | 0 |
| Schleicher | 9 | 2,050 | 1,034–4,079 | 0 |
| McMullen | 8 | 2,931 | 2,670–3,399 | 0 |
| Lubbock | 7 | 2,608 | 2,532–3,021 | 0 |
Operators
Current operator of record for wells reporting the top, ranked by wells permitted in the last three years.
| Operator | Last 3 yrs | All |
|---|---|---|
| Pioneer Natural Res. USA, Inc. | 983 | 3,877 |
| Diamondback E&P LLC | 496 | 1,613 |
| Endeavor Energy Resources L.P. | 226 | 1,699 |
| Blackbeard Operating, LLC | 224 | 871 |
| Marathon Oil Company | 188 | 1,498 |
| XTO Energy Inc. | 166 | 2,130 |
| DE IV Operating, LLC | 149 | 149 |
| DE IV Operating, LLC | 144 | 275 |
| Apache Corporation | 130 | 1,161 |
| Chevron U. S. A. Inc. | 129 | 1,265 |
| Civitas Permian Operating, LLC | 125 | 125 |
| COG Operating LLC | 108 | 727 |
| OXY USA WTP LP | 91 | 399 |
| Occidental Permian Ltd. | 87 | 1,371 |
| Utoco, Ltd. | 77 | 638 |
| Oxyrock Operating, LLC | 69 | 69 |
| Vital Energy, Inc. | 38 | 57 |
| Hannathon Petroleum II, LLC | 37 | 54 |
| SM Energy Company | 36 | 154 |
| Discovery Natural Resources LLC | 34 | 215 |
| Ring Energy, Inc. | 31 | 295 |
| RP Operating, L.L.C. | 29 | 78 |
| Triple Crown Resources, LLC | 29 | 36 |
| OXY USA WTP LP | 27 | 304 |
| Sabalo II Operating, LLC | 26 | 26 |
Recently permitted wells reporting the Queen
BY LAST PERMIT ISSUED
| Last permit | Lease | Operator | County | Top, ft | API |
|---|---|---|---|---|---|
| Oct 26, 2026 | West Seminole SA Unit | OXY USA WTP LP | Gaines | 3,869 | 16502768 |
| Oct 21, 2026 | West Seminole SA Unit | OXY USA WTP LP | Gaines | 4,008 | 16538557 |
| Oct 21, 2026 | West Seminole SA Unit | OXY USA WTP LP | Gaines | 3,980 | 16538559 |
| Oct 13, 2026 | Seminole San Andres Unit | OXY USA Inc. | Gaines | 3,958 | 16500032 |
| Oct 8, 2026 | West Seminole SA Unit | OXY USA WTP LP | Gaines | 3,878 | 16500633 |
| Oct 7, 2026 | Denver Unit | Occidental Permian Ltd. | Gaines | 3,602 | 16530365 |
| Oct 5, 2026 | Seminole San Andres Unit | OXY USA Inc. | Gaines | 3,943 | 16502072 |
| Oct 2, 2026 | Edwards, C. W., et AL | Pitts Energy Co. | Ward | 2,843 | 47533893 |
| Sep 25, 2026 | West Seminole SA Unit | OXY USA WTP LP | Gaines | 3,884 | 16538405 |
| Sep 25, 2026 | West Seminole SA Unit | OXY USA WTP LP | Gaines | 3,915 | 16538446 |
| Sep 24, 2026 | Denver Unit | Occidental Permian Ltd. | Gaines | 4,000 | 16530431 |
| Sep 24, 2026 | West Seminole SA Unit | OXY USA WTP LP | Gaines | 3,890 | 16538299 |
| Sep 16, 2026 | Sullivan Unit | Gouger Oil Company, LLC | Live Oak | 5,440 | 29733340 |
| Sep 14, 2026 | Gilded Lady | Blackbeard Operating, LLC | Winkler | 3,655 | 49534047 |
| Sep 3, 2026 | Foster, H. C. | Laguna Petroleum Corporation | Ector | 3,496 | 13538408 |
| Sep 1, 2026 | Bennett Ranch Unit | Occidental Permian Ltd. | Yoakum | 4,067 | 50135666 |
| Aug 31, 2026 | Waddell, W. N. Etal | Burlington Res O & G Co-Midland | Crane | 2,262 | 10334611 |
| Aug 21, 2026 | Fullerton Clearfork Unit | XTO Energy Inc. | Andrews | 3,751 | 00346561 |
| Aug 21, 2026 | Seminole San Andres Unit | OXY USA Inc. | Gaines | 4,023 | 16500102 |
| Aug 20, 2026 | Seminole San Andres Unit | OXY USA Inc. | Gaines | 4,695 | 16532141 |
| Aug 20, 2026 | Edwards, C. W. et AL | Pitts Energy Co. | Ward | 2,742 | 47533977 |
| Aug 19, 2026 | West Seminole SA Unit | OXY USA WTP LP | Gaines | 3,875 | 16538298 |
| Aug 19, 2026 | Yates Filed Unit | Marathon Oil Company | Pecos | 1,574 | 37133696 |
| Aug 18, 2026 | Logsdon, Etal -B- | Texland Petroleum, L.P. | Andrews | 3,700 | 00344975 |
| Aug 17, 2026 | Anton-Irish Clearfork Unit | Occidental Permian Ltd. | Hale | 2,766 | 18930503 |
About this data
Formation tops, elevations, perforations, and casing from the RRC dbf900 wellbore file, refreshed weekly, with reported names normalized to Petrora's formation registry. County and operator breakdowns are rebuilt nightly.
Developers: this page as JSON is GET /v1/data/formations/queen, documented in the API reference.