Petrora

FORMATIONS · RRC WELLBORE FILE

Holt

Reported as a top in 2,844 wells across 10 counties, at a median depth of 4,940 ft (4,172 to 5,500 ft in most wells). 83 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 →

2.84K
wells reporting a top
83
permitted in last 3 years
10
counties
4,940
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.

CountyWellsMedian, ftP10–P90Last 3 yrs
Ector
1,375
5,0004,778–5,24927
Andrews
460
5,3294,871–5,5196
Winkler
398
4,7404,500–5,06239
Ward
393
4,6004,122–5,4547
Crane
179
3,7593,431–4,0714
Montague
21
1,7021,659–1,8080
Goliad
14
11,12610,143–12,0670

Operators

Current operator of record for wells reporting the top, ranked by wells permitted in the last three years.

OperatorLast 3 yrsAll
Basin Oil & Gas Operating, LLC2626
Continental Resources, Inc.913
Slant Operating, LLC719
OXY Low Carbon Ventures, LLC77
Devon Energy Production Co, L.P.434
Goodnight Midstream Permian, LLC46
Sundown Energy LP358
Ring Energy, Inc.320
Comal Operating LLC33
Blackbeard Operating, LLC261
Meco IV, LLC218
Pennzoil Exploration & Prod. Co.24
Admiral Permian Operating LLC22
Chevron U. S. A. Inc.168
Texland Petroleum, L.P.123
OXY USA Inc.18
Cross Timbers Energy, LLC17
Citation Oil & Gas Corp.15
Pennzenergy Exp. & Prod., L.L.C.14
Rust Oil Corp.14
Ares Energy, Ltd.13
Element Petroleum OP III, LLC12
XTO Energy Inc.0286
Fasken Oil and Ranch, Ltd.0238
COG Operating LLC0169

Recently permitted wells reporting the Holt

BY LAST PERMIT ISSUED

Last permitLeaseOperatorCountyTop, ftAPI
Jul 2, 2026State-WaltonPennzenergy Exp. & Prod., L.L.C.Winkler4,72849505173
May 6, 2026LawrenceGoodnight Midstream Permian, LLCWard4,16447536739
May 6, 2026LawrenceGoodnight Midstream Permian, LLCWard4,11547536828
May 6, 2026LawrenceGoodnight Midstream Permian, LLCWard4,11547536965
May 6, 2026LawrenceGoodnight Midstream Permian, LLCWard4,11547537003
Apr 28, 2026Lovett, H.E.Devon Energy Production Co, L.P.Winkler4,69949532798
Mar 18, 2026Millard -C-Ring Energy, Inc.Ector4,14113543829
Mar 9, 2026Bashara-ProthroBasin Oil & Gas Operating, LLCWinkler4,67949535161
Feb 25, 2026Lovett, H. E.Basin Oil & Gas Operating, LLCWinkler4,72649535159
Feb 25, 2026State-WaltonBasin Oil & Gas Operating, LLCWinkler4,76949535160
Feb 19, 2026Baird, W. E.Basin Oil & Gas Operating, LLCWinkler4,82449535153
Sep 2, 2025Lovett, H.E.Devon Energy Production Co, L.P.Winkler4,74049533300
Aug 28, 2025Bashara-ProthroBasin Oil & Gas Operating, LLCWinkler4,72549535128
Aug 15, 2025Brown-AltmanMeco IV, LLCWinkler4,70749534233
Jul 16, 2025Whittenburg Blue 2335AContinental Resources, Inc.Ector7,35613544122
Jun 13, 2025J. B. Tubb a/C 1 TR ASlant Operating, LLCCrane3,35710335187
Jun 13, 2025J. B. Tubb a/C 1 TR ASlant Operating, LLCCrane3,39210337052
Jun 12, 2025Baird, W. E.Basin Oil & Gas Operating, LLCWinkler4,81749535122
Jun 11, 2025Baird, W. E.Basin Oil & Gas Operating, LLCWinkler4,75849535123
Jun 6, 2025Baird, W. E.Basin Oil & Gas Operating, LLCWinkler4,87549535121
May 19, 2025University Genesis 34Comal Operating LLCAndrews4,71000307227
May 7, 2025Baird, W. E.Basin Oil & Gas Operating, LLCWinkler4,82849535114
May 6, 2025Irma UnitAres Energy, Ltd.Ector5,21013544107
May 2, 2025Baird, W. E.Basin Oil & Gas Operating, LLCWinkler4,88649535109
Apr 29, 2025Baird, W. E.Basin Oil & Gas Operating, LLCWinkler4,76449535108

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/holt, documented in the API reference.