WELL · 42-185-30658 · DISTRICT 3

Mustang #1 H

Plugged

Mustang #1 H (API 42-185-30658) is a plugged horizontal well in Grimes County, plugged November 2, 1999, last operated by Texcal Energy (GP) LLC.

The RRC has issued 2 drilling permits between 1999 and 2005, permitted to 20,000 ft.

Completion filings report one formation top, including Austin Chalk.

Operator of record

Texcal Energy (GP) LLC

Denver, CO · P-5 Y, filed Jul 3, 2010 · 26 permits on file

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore schedule	none
Production reports	Proline Energy Resources Incthrough Apr 2026
Latest permit	Texcal Energy (GP) LLCApr 22, 2005

20,000: total depth, ft
2: permits on file
Apr 22, 2005: last permit issued
—: completed
0: cumulative oil, bbl
871K: cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Sep 2005 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule: OFF SCHEDULE
Completed: —
Shut in: —
Plugged: Nov 2, 1999

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 lease this well is completed on; this well is the only one on it.Why →

Lease	Field	Reporting operator	Wells	Oil, bbl	Gas, mcf	Reported
Mustang G-3-211933	Giddings (Austin Chalk, Gas)	Proline Energy Resources Inc	1	0	871K	Sep 2005 – Jul 2026

Gas, mcf lease total

Last 12 months 6,052 · prior 12 10,491(-42%)

Chain of custody

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

1Texcal Energy (GP) LLCSep 2005 → May 2010
2Milagro Exploration, LLCJun 2010 → Oct 2015
3White Oak Operating Company LLCNov 2015 → Jan 2018
4Proline Energy Resources IncFeb 2018 → Apr 2026

Permits

Permit	Type	Operator	Received	Issued	Spud	Depth
560850-99	Reenter	Texcal Energy (GP) LLC	Apr 20, 2005	Apr 22, 2005	—	15,251
487285-99	Drill	Marathon Oil Company	Sep 3, 1999	Sep 3, 1999	Sep 15, 1999	20,000

Completions

Completed	Lease	Field	Operator	Status	Depth
—	— G-3-211933	—	—	—	—

Formation tops

As filed on W-2/G-1. Subsea from 26 ft elevation.Download CSV →

Formation	MD ft	Subsea
Austin Chalk	15,120	-15,094

Perforations

Perforated and open-hole intervals.

From	To	Type
15,120	17,185	Perforated

Casing

Strings as reported, shallowest first.

Casing in	Set at	Hole in	Cement
10.75	2,515	14.75	1,575 S
7.625	15,120	9.875	735 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. About these reports →

Suffix	Filed	W-2 / G-1 date	Logs referenced
00	Jan 5, 2006	Oct 6, 2005	Yes
00	Nov 2, 2005	—	—

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 42-185-30658 → W-2, G-1, plugging reports, as PDFs
Completion packets for 42-185-30658 → scanned completion filings

Log images are in archives with no per-well link: the RRC's Neubus archive (2004 onward). then paste it into their search.

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/18530658, documented in the API reference.