WELL · 42-055-34302 · DISTRICT 1
Mercer Mills #23
Caldwell County · Luling-Branyon field · Shut IN · Vertical
Mercer Mills #23 (API 42-055-34302) is a well in Caldwell County operated by Texas Petroleum Investment CO., completed September 30, 1987 and listed as shut in on the RRC schedule.
The RRC has issued one drilling permit, issued August 12, 1987, permitted to 2,500 ft.
It was permitted by Mobil Producing TX. & N.M. Inc. and has since transferred to Texas Petroleum Investment CO. on the wellbore schedule.
Completion filings report 4 formation tops, including Austin Chalk, Buda, George Town, Edwards.
Its lease has reported 600K barrels of oil and 40 mcf of gas since January 1993, last reporting in July 2026. The lease carries 15 wells, so these are lease totals, not this well alone.
Operator of record
Texas Petroleum Investment Co.
Permitted by Mobil Producing TX. & N.M. Inc.; the EWA schedule now lists a different operator.
- Based in
- Houston, TX
- P-5 status
- Active (A)
- P-5 last filed
- Oct 1, 2025
- Permits on file
- 233
- Phone
- (713) 789-9225
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 | Mobil Producing TX. & N.M. Inc.Aug 12, 1987 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 2,500
- total depth, ft
- 1
- permits on file
- Aug 12, 1987
- last permit issued
- Sep 30, 1987
- completed
- 600K
- cumulative oil, bbl
- 40
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Sep 30, 1987
- 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 lease this well is completed on; they carry 15 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Mercer, Mills O-1-1089 | Luling-Branyon | Texas Petroleum Investment Co. | 15 | 600K | 40 | Jan 1993 – Jul 2026 |
Oil, barrels lease total
Last 12 months 11,285 · prior 12 11,986(-6%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Meridian Oil Production Inc.Jan 1993 → Feb 1996
- 2Meridian Oil Inc.Mar 1996 → Jul 1996
- 3Burlington Resources Oil&gas Co.Aug 1996 → Mar 1997
- 4Vintage Petroleum, Inc.Apr 1997 → Apr 2006
- 5Vintage Petroleum, LLCMay 2006 → Sep 2006
- 6Texas Petroleum Investment Co.Oct 2006 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 334426-99 | Drill | Mobil Producing TX. & N.M. Inc. | Aug 12, 1987 | Aug 12, 1987 | Sep 5, 1987 | 2,500 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-1-1089 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 482 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Austin Chalk | 1,717 | -1,235 |
| Buda | 1,945 | -1,463 |
| George Town | 2,060 | -1,578 |
| Edwards | 2,122 | -1,640 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 2,194 | 2,197 | Perforated |
| 2,202 | 2,205 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 10.75 | 333 | 14.75 | 330 S |
| 7 | 2,261 | 9.875 | 625 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 | Oct 27, 1987 | Oct 12, 1987 | Yes |
| 00 | Oct 16, 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 42-055-34302 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-055-34302 → 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/05534302, documented in the API reference.