Petrora

FORMATIONS · RRC WELLBORE FILE

Lagarto

Reported as a top in 1,185 wells across 11 counties, at a median depth of 1,500 ft (1 to 2,750 ft in most wells). 32 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 →

1.19K
wells reporting a top
32
permitted in last 3 years
11
counties
1,500
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
Refugio
1,069
1,5001–2,75030
Goliad
43
11–12
Nueces
35
2,7502,730–3,1180
Bee
19
11–10
Victoria
11
11–10

Operators

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

OperatorLast 3 yrsAll
Quintana Pet. Corp.19507
Hilcorp Energy Company8165
T-C Oil Company, LLC5339
Gilster, Ralph R. III022
Texaco Inc.014
Pace West Production LC07
Copano Gas Unit07
Gcea, LLC07
Copano Company05
Texaco Producing Inc.05
Nordan & Company03
Pennzoil Producing Co.03
Royal Production Company, Inc.03
Mellon Oil Unit02
Hewit & Dougherty02
American Petrofina Co. of Tex.02
Shell Western E&P Inc.01
Tri-C Resources, Inc.01
Western Gulf Oil & Gas, LLC01
Amoco Production Company01
Braman, D. H., Jr.01
Dinero Oil Corporation01
Exxon Corp.01
Fields Exploration, Inc.01
Flint Oak Energy, LLC01

Recently permitted wells reporting the Lagarto

BY LAST PERMIT ISSUED

Last permitLeaseOperatorCountyTop, ftAPI
Sep 25, 2026Tom O'Connor (5800 SD) Fld. UnitHilcorp Energy CompanyRefugio2,75039100683
Jul 22, 2026Tom O'Connor (5800 SD) FLD UnitQuintana Pet. Corp.Refugio1,50039101159
Jan 29, 2026Duke Ranch -M-T-C Oil Company, LLCGoliad117533814
Jan 28, 2026Duke Ranch -8-T-C Oil Company, LLCGoliad117533882
Sep 26, 2025Clay Pasture -B- State UnitT-C Oil Company, LLCRefugio139132876
Sep 18, 2025Tom Oconnor (5800SD) Fld. UnitQuintana Pet. Corp.Refugio1,50039102036
Sep 10, 2025Tom Oconnor (5800SD) Fld. UnitQuintana Pet. Corp.Refugio1,50039101579
Aug 5, 2025Tom Oconnor (5800 SD) Fld. UnitHilcorp Energy CompanyRefugio2,75039132502
Jul 18, 2025O'Connor -H-T-C Oil Company, LLCRefugio139132949
Feb 19, 2025Clay Pasture -B- State UnitT-C Oil Company, LLCRefugio139132932
Dec 12, 2024Tom Oconnor (5800 SD) Fld. UnitQuintana Pet. Corp.Refugio1,50039100703
Dec 9, 2024Williams, Maude et al "A"Quintana Pet. Corp.Refugio1,50039100207
Oct 29, 2024Tom Oconnor (5800 SD) Fld. UnitQuintana Pet. Corp.Refugio1,50039131896
Oct 14, 2024Williams, Maude Etal -A-Hilcorp Energy CompanyRefugio1,50039104013
Jul 29, 2024Williams, Maude Etal -A-Hilcorp Energy CompanyRefugio1,50039132648
Jul 1, 2024Tom O'Connor (5800'SD)FIELD UnitQuintana Pet. Corp.Refugio1,50039131923
Jun 18, 2024Tom Oconnor (5800 SD) Fld. UnitQuintana Pet. Corp.Refugio1,50039100570
Jun 18, 2024Tom O'Connor (5800'SD)FIELD UnitQuintana Pet. Corp.Refugio1,50039130315
Jun 11, 2024Oconnor, Thomas -C-Hilcorp Energy CompanyRefugio1,50039101153
Apr 19, 2024Tom OCONNOR(5800 Sand)field UnitQuintana Pet. Corp.Refugio1,50039101514
Apr 18, 2024Tom O'Connor (5800 SD) Fld. UnitQuintana Pet. Corp.Refugio1,50039101520
Apr 17, 2024Tom O'Connor (5800 SD) FLD UnitQuintana Pet. Corp.Refugio1,50039100707
Mar 18, 2024Tom Oconnor (5800 SD) Fld. UnitQuintana Pet. Corp.Refugio1,50039101152
Mar 5, 2024Tom O'Connor (5800 SD) FLD UnitQuintana Pet. Corp.Refugio1,50039131248
Jan 31, 2024Williams, Maude, Etal -A-Quintana Pet. Corp.Refugio1,50039100271

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/lagarto, documented in the API reference.