WELL · 42-071-31487 · DISTRICT 3

Tyrrell W. C. Tr. #43

Chambers County · Anahuac field · Vertical

Tyrrell W. C. TR. #43 (API 42-071-31487) is a well in Chambers County operated by Texas Petroleum Investment CO., completed March 20, 1984.

The RRC has issued one drilling permit, issued November 3, 1983, permitted to 7,650 ft.

It was permitted by Exxon Corp. and has since transferred to Texas Petroleum Investment CO. on the wellbore schedule.

Completion filings report 5 formation tops, including Miocene (undifferentiated), Frio, Discorbis, Marginulina.

Its lease has reported 278K barrels of oil and 487K mcf of gas since January 1993, last reporting in July 2026. The lease carries 35 wells, so these are lease totals, not this well alone.

It holds an active disposal or injection permit.

Operator of record

Texas Petroleum Investment Co.

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

Houston, TX · P-5 Y, filed Jul 4, 2026 · 233 permits on file · (888) 214-3575

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore schedule	Texas Petroleum Investment Co.
Production reports	Texas Petroleum Investment Co.through Apr 2026
Latest permit	Exxon Corp.Nov 3, 1983

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

7,650: total depth, ft
1: permits on file
Nov 3, 1983: last permit issued
Mar 20, 1984: completed
278K: cumulative oil, bbl
487K: cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule: OFF SCHEDULE
Completed: Mar 20, 1984
Shut in: —
Plugged: —

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; they carry 35 wells in total, so volumes are shared.Why →

Lease	Field	Reporting operator	Wells	Oil, bbl	Gas, mcf	Reported
Tyrrell, W. C., Tr. O-3-90	Anahuac	Texas Petroleum Investment Co.	35	278K	487K	Jan 1993 – Jul 2026

Oil, barrels lease total

Last 12 months 2,763 · prior 12 753(+267%)

Chain of custody

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

1Exxon Corp.Jan 1993 → Mar 2000
2Exxon Mobil CorporationApr 2000 → May 2002
3Texas Petroleum Investment Co.Jul 2003 → Apr 2026

Permits

Permit	Type	Operator	Received	Issued	Spud	Depth
221731-99	Drill	Exxon Corp.	Oct 21, 1983	Nov 3, 1983	—	7,650

Completions

Completed	Lease	Field	Operator	Status	Depth
—	— O-3-90	—	—	—	—
—	— O-3-90	—	—	—	—

Formation tops

As filed on W-2/G-1. Subsea from 41 ft elevation.Download CSV →

Formation	MD ft	Subsea
Miocene (undifferentiated)MIOCENE	3,037	-2,996
Frio	5,691	-5,650
Discorbis	5,940	-5,899
Marginulina	6,728	-6,687
Margulina	6,728	-6,687
FrioFRIO 1	6,891	-6,850

Perforations

Perforated and open-hole intervals.

From	To	Type
2,020	2,080	Open hole
2,566	2,580	Perforated
2,586	2,592	Perforated
2,628	2,638	Perforated
2,682	2,688	Perforated
2,685	2,691	Perforated
2,696	2,720	Perforated
2,699	2,723	Perforated
5,948	5,964	Perforated
5,968	5,978	Perforated
6,893	6,898	Perforated
6,904	6,910	Perforated
6,944	6,950	Perforated
6,956	6,994	Perforated
6,996	7,007	Perforated
7,011	7,015	Perforated
7,022	7,030	Perforated
7,034	7,054	Perforated
7,062	7,080	Perforated
7,104	7,120	Perforated

Casing

Strings as reported, shallowest first.

Casing in	Set at	Hole in	Cement
13.375	1,045	17.5	1,310 S
13.375	1,046	17.5	1,310 S
9.625	1,804	12.25	761 S
5.5	2,945	9.625	480 S
9.625	7,149	12.25	1,066 S
9.625	7,150	12.25	305 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
May 19, 2026	Mar 13, 2026	—
Aug 20, 2002	Jan 30, 2002	—
Aug 19, 2002	Dec 6, 2001	—
Nov 6, 1995	Jun 30, 1995	—
Nov 4, 1991	Oct 17, 1991	—
Oct 31, 1991	Apr 25, 1984	—
May 25, 1984	Apr 25, 1984	—
Feb 24, 1984	Apr 25, 1984	—
Feb 7, 1984	Apr 25, 1984	—

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 42-071-31487 → W-2, G-1, plugging reports, as PDFs
Completion packets for 42-071-31487 → 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.

Beyond the permit record

RRC UIC permits · H-10 reported volumes

Injection

0: bbl, last 12 reported months
33.6M: bbl, all reported
Oct 2025: reported through

UIC	Kind	Status	Permitted bbl/d	Max psi	Zone ft
000075827	H-1 Injection	Active	15,000	600	1,600–6,000

MONTHLY INJECTED, BBL · H-10 · LAST 24 REPORTED MONTHS

Last 12 months 0 · prior 12 24,220(-100%)

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/07131487, documented in the API reference.