TEXAS · WELLS · BROOKS COUNTY · API 42-047-31458 · DISTRICT 04

Mariposa Field Gas Unit #C 18

Plugged

Brooks County · Mariposa (C11-N6 Cons. Gas) field · Vertical

Mariposa Field Gas Unit #C 18 (API 42-047-31458) is a plugged well in Brooks County, plugged March 3, 2000, last operated by Exxon Mobil Corporation.

The RRC has issued 5 drilling permits between 1985 and 1996, permitted to 10,445 ft.

It was permitted by Exxon Corp. and has since transferred to Exxon Mobil Corporation on the wellbore schedule.

Operator of record

Exxon Mobil Corporation

Permitted by Exxon Corp.; the EWA schedule now lists a different operator.

Based in: Spring, TX
P-5 status: Active (A)
P-5 last filed: Jul 15, 2026
Permits on file: 1,223
Phone: (346) 474-9142

Watch this operator Watch Brooks County

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore schedule	none
Production reports	none
Latest permit	Exxon Corp.Aug 13, 1996

10,445: total depth, ft
5: permits on file
Aug 13, 1996: last permit issued
Jul 1, 1999: completed
0: cumulative oil, bbl
0: cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Mar 2000

Regulatory status · RRC wellbore file

Schedule: OFF SCHEDULE
Completed: Jul 1, 1999
Shut in: —
Plugged: Mar 3, 2000

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 6 leases this well is completed on; they carry 7 wells in total, so volumes are shared.Why →

Lease	Field	Reporting operator	Wells	Reported
Mariposa Field Gas Unit G-4-167511	Mariposa (G-10)	Exxon Corp.	1	Jan 1998 – Mar 2000
Mariposa Field Gas Unit G-4-166016	Wildcat	Exxon Corp.	1	Jan 1998 – Jun 1999
Mariposa Field Gas Unit G-4-128098	Mariposa (N-8,W)	Exxon Corp.	1	Jan 1993 – Jan 1998
Mariposa Field Gas Unit G-4-150761	Mariposa (M-10)	Exxon Corp.	1	Dec 1993 – Jan 1998
Mariposa Field Gas Unit G-4-146863	Mariposa (M-14)	Exxon Corp.	1	Jan 1993 – Dec 1993
Mariposa Field Gas Unit O-4-9338	Wildcat	Exxon Corp.	2	Jan 1993 – Nov 1993

No volumes reported on these leases in the last three years.

Permits

Permit	Type	Operator	Received	Issued	Spud	Depth
451448-99	Recompletion	Exxon Corp.	Aug 13, 1996	Aug 13, 1996	Oct 7, 1996	8,602
418427-99	Recompletion	Exxon Corp.	Nov 18, 1993	Nov 18, 1993	Nov 22, 1993	8,880
353482-99	Recompletion	Exxon Corp.	Nov 21, 1988	Nov 22, 1988	—	9,163
297139-99	Drill	Exxon Corp.	Feb 3, 1986	Feb 4, 1986	Sep 8, 1985	10,445
281769-99	Drill	Exxon Corp.	Jul 3, 1985	Aug 2, 1985	—	10,445

Completions

Completed	Lease	Field	Operator	Status	Depth
Jul 1, 1999	Mariposa Field Gas Unit G-4-167511	Mariposa (C11-N6 Cons. Gas)	Exxon Mobil Corporation	Plugged	—
Jan 8, 1998	Mariposa Field Gas Unit G-4-166016	Wildcat	Exxon Corp.	Plugged	—
Dec 16, 1993	Mariposa Field Gas Unit G-4-150761	Mariposa (M-10)	Exxon Corp.	Plugged	—
Feb 6, 1989	Mariposa Field Gas Unit G-4-146863	Mariposa (M-14)	Exxon Corp.	Plugged	—
Feb 6, 1989	Mariposa Field Gas Unit O-4-9338	Wildcat	Exxon Corp.	Plugged	—
Jul 7, 1988	Mariposa Field Gas Unit G-4-128098	Mariposa (N-8 W)	Exxon Corp.	Plugged	—
Dec 2, 1985	Mariposa Field Gas Unit O-4-9338	Wildcat	Exxon Corp.	Plugged	—

Perforations

Perforated and open-hole intervals.

From	To	Type
6,896	6,918	Perforated
6,898	6,918	Perforated
7,157	7,169	Perforated
8,755	8,760	Perforated
8,802	8,830	Perforated
8,894	8,904	Perforated
9,016	9,046	Perforated
9,025	9,046	Perforated
9,089	9,094	Perforated

Casing

Strings as reported, shallowest first.

Casing in	Set at	Hole in	Cement
8.625	1,222	12.25	720 S
2.875	9,159	7.875	1,740 S
2.875	9,159	—	—
2.875	9,160	—	—
2.875	9,161	7.875	1,740 S
2.875	9,161	—	—
2.875	9,162	7.875	1,740 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 →

Filed	W-2 / G-1 date	Logs referenced
Sep 15, 1999	Jul 26, 1999	—
Apr 28, 1998	Jan 30, 1998	Yes
Apr 16, 1998	—	—
Feb 23, 1998	Jan 26, 1998	Yes
Jan 27, 1998	—	—
Sep 14, 1994	Jan 12, 1994	Yes
Sep 6, 1994	—	—
Dec 22, 1993	Oct 15, 1993	—
Dec 21, 1993	Oct 15, 1993	—
Oct 27, 1993	—	—
May 23, 1989	Mar 13, 1989	Yes
Apr 11, 1989	—	—
Nov 9, 1988	Jul 21, 1988	Yes
Aug 30, 1988	—	Yes
Jan 21, 1988	Dec 3, 1987	Yes
Dec 30, 1987	—	—

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 42-047-31458 → W-2, G-1, plugging reports, as PDFs
Completion packets for 42-047-31458 → 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/04731458, documented in the API reference.