WELL · 42-163-32831 · DISTRICT 1
Oppenheimer #1B
Frio County · Pearsall (Austin Chalk) field · Partial Plug · Horizontal
Oppenheimer #1B (API 42-163-32831) is a horizontal well in Frio County operated by Bigfoot Oil LLC, completed October 10, 1990 and listed as partial plug on the RRC schedule.
The RRC has issued 2 drilling permits (amended once) between 1990 and 2019, permitted to 7,800 ft.
Completion filings report 10 formation tops, including Queen City, Escondido, Navarro, Anacacho.
Its 2 leases have reported 582K barrels of oil and 543K mcf of gas since January 1993, last reporting in July 2026. The leases carry 20 wells, so these are lease totals, not this well alone.
Operator of record
Denver, CO · P-5 Y, filed Apr 4, 2026 · 10 permits on file · (303) 570-4447
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Bigfoot Oil LLC |
| Production reports | Bigfoot Oil LLCthrough Sep 2025 |
| Latest permit | Bigfoot Oil LLCApr 18, 2019 |
- 7,800
- total depth, ft
- 3
- permits on file
- Apr 18, 2019
- last permit issued
- Oct 10, 1990
- completed
- 582K
- cumulative oil, bbl
- 543K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Oct 10, 1990
- Shut in
- —
- Plugged
- —
Operator's P-5 on the schedule: Active
Surface location
28.848172, -99.167697
OpenStreetMap → · Google Maps →
Permit surface location from the RRC GIS record, in Frio County.
Lease production
PDQ LEASE REPORTS · REPORTED THROUGH APR 2026
Texas reports oil by lease, not by well. These are the 2 leases this well is completed on; they carry 20 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Halff & Oppenheimer O-1-1364 | Pearsall (Navarro Sand) | Bigfoot Oil LLC | 19 | 480K | 38.3K | Jan 1993 – Jul 2026 |
| Oppenheimer O-1-12716 | Pearsall (Austin Chalk) | Bigfoot Oil LLC | 1 | 102K | 504K | Jan 1993 – Jul 2026 |
Oil, barrels lease total
Last 12 months 615 · prior 12 4,655(-87%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Lawbar Petroleum, Inc.Jan 1993 → Dec 1999
- 2Sabre Operating, Inc.Jan 1993 → Nov 1996
- 3Shana Petroleum CompanyDec 1996 → Dec 2000
- 4Spur Operating Co.Jan 2000 → Feb 2012
- 5Jenex Petroleum CorporationMar 2012 → Aug 2016
- 6Jenco Petroleum CorporationSep 2016 → Jun 2017
- 7Bigfoot Oil LLCJul 2017 → Sep 2025
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 851295-98 | Recompletion | Bigfoot Oil LLC | Apr 21, 2020 | Apr 18, 2019 | — | 7,800 |
| 851295-99 | Recompletion | Bigfoot Oil LLC | Mar 20, 2019 | Apr 18, 2019 | Sep 11, 2019 | 4,050 |
| 377619-99 | Drill | Sabre Operating, Inc. | Sep 6, 1990 | Sep 6, 1990 | Sep 10, 1990 | 7,800 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-1-1364 | — | — | — | — |
| — | — O-1-12716 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 528 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Queen City | 960 | -432 |
| Escondido | 3,152 | -2,624 |
| Navarro | 3,904 | -3,376 |
| Anacacho | 4,815 | -4,287 |
| Austin ChalkAUSTIN CHALK - H2S | 4,850 | -4,322 |
| Austin Chalk | 5,198 | -4,670 |
| Anacacho | — | — |
| BudaBUDA - H2S | — | — |
| Eagle FordEAGLE FORD - H2S | — | — |
| GeorgetownGEORGETOWN - H2S | — | — |
| Olmos | — | — |
| Pearsall | — | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 3,904 | 3,912 | Perforated |
| 5,198 | 7,877 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 10.75 | 520 | 14.75 | 385 S |
| 7 | 4,853 | 9.75 | 225 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 | Apr 23, 2020 | Jan 24, 2020 | — |
| 00 | Dec 3, 1990 | Nov 8, 1990 | Yes |
| 00 | Nov 21, 1990 | — | — |
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 42-163-32831 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-163-32831 → 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.
Nearby wells and their tops
NEAREST 8 LOCATED WELLS WITH TOPS · WITHIN 16 KM
Draw a cross-section
This well's tops beside its 5 nearest neighbours, subsea-aligned so they line up regardless of surface terrain.
Halff & Oppenheimer42-163-33253
1.3 KM · Spur Operating Co. · Section with this well →
| Olmos | 3,010 | -2,469 |
| Navarro | 3,900 | -3,359 |
| San Miguel | 4,274 | -3,733 |
| Austin Chalk | 5,210 | -4,669 |
| Eagle Ford | 5,610 | -5,069 |
| Buda | 5,690 | -5,149 |
| Del Rio | 5,794 | -5,253 |
Allerkamp, Ernest E.42-163-32115
1.9 KM · Major Exploration, Inc · Section with this well →
| Queen City | 1,000 | -452 |
| Carrizo | 2,600 | -2,052 |
| Navarro | 2,927 | -2,379 |
| Olmos | 3,910 | -3,362 |
| Austin Chalk | 4,269 | -3,721 |
| San Miguel | 4,289 | -3,741 |
| Ausitn Chalk | 5,213 | -4,665 |
| Austin Chalk | 5,213 | -4,665 |
19 TOPS · FIRST 8
Allerkamp, Ernest E.42-163-34114
2.0 KM · Bigfoot Oil LLC · Section with this well →
| Queen City | 1,000 | -984 |
| Navarro | 3,930 | -3,914 |
| Austin Chalk | — | |
| Eagle Ford | — | |
| Escondido | — | |
| Georgetown | — | |
| Olmos | — | |
| Pearsall | — |
10 TOPS · FIRST 8
Melms Estate42-163-34113
2.4 KM · Bigfoot Oil LLC · Section with this well →
| Queen City | 1,100 | -1,036 |
| Navarro | 3,248 | -3,184 |
| Olmos | — | |
| Anacacho | — | |
| Austin Chalk | — | |
| Buda | — | |
| Eagle Ford | — | |
| Escondido | — |
10 TOPS · FIRST 8
Hce HM 03N42-163-34123
5.5 KM · Hat Creek Energy LLC · Section with this well →
| Queen City | 960 | -448 |
| Olmos | 2,510 | -1,998 |
| Navarro | 3,170 | -2,658 |
| Anacacho | 3,210 | -2,698 |
| Escondido | 4,010 | -3,498 |
| Austin Chalk | 4,850 | -4,338 |
| Eagle Ford | 5,650 | -5,138 |
| Buda | 5,800 | -5,288 |
10 TOPS · FIRST 8
Hce HM 03N42-163-34122
5.5 KM · Hat Creek Energy LLC · Section with this well →
| Anacacho | — | |
| Austin Chalk | — | |
| Buda | — | |
| Eagle Ford | — | |
| Escondido | — | |
| Georgetown | — | |
| Navarro | — | |
| Olmos | — |
10 TOPS · FIRST 8
Hce HM 03S42-163-34121
5.5 KM · Hat Creek Energy LLC · Section with this well →
| Queen City | 960 | -448 |
| Olmos | 2,510 | -1,998 |
| Navarro | 3,170 | -2,658 |
| Anacacho | 3,210 | -2,698 |
| Escondido | 4,010 | -3,498 |
| Austin Chalk | 4,850 | -4,338 |
| Eagle Ford | 5,650 | -5,138 |
| Buda | 5,800 | -5,288 |
10 TOPS · FIRST 8
Hce HM 03S42-163-34120
5.5 KM · Hat Creek Energy LLC · Section with this well →
| Queen City | 960 | -448 |
| Olmos | 2,510 | -1,998 |
| Navarro | 3,170 | -2,658 |
| Anacacho | 3,210 | -2,698 |
| Escondido | 4,010 | -3,498 |
| Austin Chalk | 4,850 | -4,338 |
| Eagle Ford | 5,650 | -5,138 |
| Buda | 5,800 | -5,288 |
10 TOPS · FIRST 8
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/16332831, documented in the API reference.