WELL · 42-163-30294 · DISTRICT 1
Mills -B- #1
Frio County · Pearsall (Austin Chalk) field · Horizontal
Mills -B- #1 (API 42-163-30294) is a plugged horizontal well in Frio County, plugged May 29, 1984, last operated by Tamarack Petroleum Company Inc..
The RRC has issued one drilling permit (amended once), issued October 16, 1992, permitted to 5,595 ft.
Completion filings report 2 formation tops, including Austin Chalk, Top Lower Chalk.
Its lease has reported 5.78K barrels of oil and 7.32K mcf of gas since January 1993, last reporting in July 2026.
Operator of record
Tamarack Petroleum Company Inc.
- Based in
- Midland, TX
- P-5 status
- Inactive (I)
- P-5 last filed
- Nov 20, 2020
- Permits on file
- 469
- Phone
- (432) 683-5474
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Tamarack Petroleum Company Inc. |
| Production reports | Baxter, Kelly H. Oil and Gas Co.through Sep 1995 |
| Latest permit | Tamarack Petroleum Company, Inc.Oct 16, 1992 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 5,595
- total depth, ft
- 2
- permits on file
- Oct 16, 1992
- last permit issued
- Mar 15, 1976
- completed
- 5.78K
- cumulative oil, bbl
- 7.32K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Mar 15, 1976
- Shut in
- —
- Plugged
- May 29, 1984
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 |
|---|---|---|---|---|---|---|
| Mills Unit O-1-13681 | Pearsall (Austin Chalk) | Exxcel Operating Company | 1 | 5.78K | 7.32K | Jan 1993 – Jul 2026 |
No volumes reported on these leases in the last three years.
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Tamarack Petroleum Company, Inc.Jan 1993 → May 1994
- 2Baxter, Kelly H.Oct 1994 → Aug 1995
- 3Baxter, Kelly H. Oil and Gas Co.Sep 1995 → Sep 1995
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 404835-98 | Reenter | Tamarack Petroleum Company, Inc. | Feb 16, 1993 | Oct 16, 1992 | Oct 21, 1992 | 5,595 |
| 404835-99 | Reenter | Tamarack Petroleum Company, Inc. | Oct 16, 1992 | Oct 16, 1992 | — | 5,500 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-1-13681 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 631 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Austin ChalkTOP AUSTIN CHALK | 5,536 | -4,905 |
| Austin ChalkBASE AUSTIN CHALK | 5,718 | -5,087 |
| Top Lower Chalk | 5,790 | -5,159 |
| Austin ChalkBASE AUSTIN CHALK | 5,896 | -5,265 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 5,230 | 7,875 | Perforated |
| 5,465 | 5,806 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 207 | 12.25 | 145 S |
| 8.625 | 224 | 12.25 | 145 S |
| — | 2,864 | 7.875 | 650 S |
| 4.5 | 5,945 | 7.875 | 350 S |
| 4.5 | 6,000 | 7.875 | 400 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 | Mar 23, 1993 | Jan 4, 1993 | — |
| 00 | Feb 26, 1993 | — | — |
| 00 | Jan 12, 1984 | Mar 23, 1976 | — |
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 42-163-30294 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-163-30294 → 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/16330294, documented in the API reference.