TEXAS · WELLS · WEBB COUNTY · API 42-479-35535 · DISTRICT 04

Bruni Mineral Trust A #31

Webb County · Cerrito Creek (Lobo 1) field · Producing · Vertical

Bruni Mineral Trust A #31 (API 42-479-35535) is a well in Webb County operated by Hilcorp Energy Company, completed February 16, 2000 and listed as producing on the RRC schedule.

The RRC has issued 2 drilling permits (amended twice) between 1992 and 1994, permitted to 10,700 ft.

It was permitted by Chevron U. S. A. Inc. and has since transferred to Hilcorp Energy Company on the wellbore schedule.

Completion filings report 4 formation tops, including Lobo Unconformity, Upr. Lobo Unconformity, Lobo 1, Lob 6.

Its 2 leases have reported 3.45K barrels of oil and 1.38M mcf of gas since January 1993, last reporting volume in April 2026. The leases carry 2 wells, so these are lease totals, not this well alone.

Operator of record

Hilcorp Energy Company

Permitted by Chevron U. S. A. Inc.; the EWA schedule now lists a different operator.

Based in: Houston, TX
P-5 status: Active – Extension (X)
P-5 last filed: Mar 27, 2026
Permits on file: 3,454
Phone: (713) 209-2400

Watch this operator Watch Webb County

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore schedule	Hilcorp Energy Company
Production reports	Hilcorp Energy Companythrough Apr 2026
Latest permit	Chevron U. S. A. Inc.May 18, 1994

The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.

10,700: total depth, ft
4: permits on file
May 18, 1994: last permit issued
Feb 16, 2000: completed
3.45K: cumulative oil, bbl
1.38M: cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Apr 2026

Regulatory status · RRC wellbore file

Schedule: ON SCHEDULE
Completed: Feb 16, 2000
Shut in: —
Plugged: —

Operator's P-5 on the schedule: Active (A)

Surface location

No coordinates on the permit record yet. The RRC's GIS record usually lands within days of issuance; historical master-file permits never carry one.

Lease production

PDQ LEASE REPORTS · REPORTED THROUGH APR 2026

Texas reports oil by lease, not by well. These are the 2 leases this well is completed on; they carry 2 wells in total, so volumes are shared.Why →

Lease	Field	Reporting operator	Wells	Oil, bbl	Gas, mcf	Reported
Bruni Mineral Trust 'A' G-4-149936	Cerrito Creek (Lobo 1)	Hilcorp Energy Company	1	3.45K	1.06M	May 1994 – Apr 2026
Bruni Mineral Trust 'A' G-4-142472	Cerrito Creek (Lobo)	Hilcorp Energy Company	1	0	317K	Jan 1993 – Apr 1994

Gas, mcf lease total

Last 12 months 16,168 · prior 12 14,801(+9%)

Chain of custody

Every operator that reported production on this well's lease, in order.

1Chevron U. S. A. Inc.Jan 1993 → Nov 2003
2Laredo EnergyDec 2003 → Mar 2005
3Chesapeake Operating, Inc.Apr 2005 → Feb 2013
4Hilcorp Energy CompanySep 2014 → Apr 2026

Permits

Permit	Type	Operator	Received	Issued	Spud	Depth
423995-98	Recompletion	Chevron U. S. A. Inc.	Jun 6, 1994	May 18, 1994	Jul 17, 1994	10,100
423995-99	Recompletion	Chevron U. S. A. Inc.	May 17, 1994	May 18, 1994	—	10,100
401523-98	Drill	Chevron U. S. A. Inc.	Aug 31, 1992	Jul 22, 1992	Aug 2, 1992	11,000
401523-99	Drill	Chevron U. S. A. Inc.	Jul 22, 1992	Jul 22, 1992	—	11,000

Completions

Completed	Lease	Field	Operator	Status	Depth
Feb 16, 2000	Bruni Mineral Trust A G-4-149936	Cerrito Creek (Lobo 1)	Hilcorp Energy Company	Producing	10,700
Sep 6, 1992	Bruni Mineral Trust A G-4-142472	Cerrito Creek (Lobo)	Hilcorp Energy Company	SWR-10-Well · shut in Oct 1, 2000	10,700

Formation tops

As filed on W-2/G-1. Subsea from 447 ft elevation.Download CSV →

Formation	MD ft	Subsea
Lobo Unconformity	9,040	-8,593
Upr. Lobo Unconformity	9,040	-8,593
Lobo 1	9,080	-8,633
Lob 6	10,116	-9,669

Perforations

Perforated and open-hole intervals.

From	To	Type
9,082	9,098	Perforated
9,082	9,186	Perforated
9,146	9,150	Perforated
9,156	9,160	Perforated
9,163	9,186	Perforated
10,124	10,128	Perforated
10,124	10,418	Perforated
10,210	10,238	Perforated
10,364	10,366	Perforated
10,406	10,418	Perforated

Casing

Strings as reported, shallowest first.

Casing in	Set at	Hole in	Cement
9.625	1,045	12.25	325 S
7	7,388	8.75	200 S
2.875	10,670	6.125	550 S

Completion filings

W-2 and G-1 reports on record in the RRC wellbore file, newest first. The suffix identifies the wellbore or completion event. The record date is the RRC's own date on the record, not the day the report was filed: 462,034 of the state's filings carry 1984-01-12. About these reports →

RRC record date	W-2 / G-1 date	Logs referenced
May 30, 2000	Mar 27, 2000	—
Aug 5, 1994	Jun 7, 1994	Yes
Jul 5, 1994	—	—
Oct 29, 1992	Oct 5, 1992	Yes
Oct 12, 1992	—	—

The source documents

Petrora holds the structured record. The scanned filings live at the RRC; these links open its search already filled in for this API.

Wellbore filings for 42-479-35535 → W-2, G-1, plugging reports, as PDFs
Completion packets for 42-479-35535 → scanned completion filings

Log images filed since 2004 open from the RRC's log search for this well; none are loaded here for it.

Find logs withinmiles of this well:List →Map →

About this data

Permits from the RRC OGA049M master and daily daf420 files; wellbore and operator of record from the EWA schedule, weekly; completions, formation tops, casing, and perforations from the dbf900 wellbore file; production from PDQ lease reports, which lag two to three months; injection from UIC permits, H-10 reports, and TexNet daily volumes; earthquakes from the TexNet catalog.

New to these records? How to read a well page · API numbers · completion reports and tops · why production is by lease

Developers: this page as JSON is GET /v1/data/wells/47935535, documented in the API reference.