WELL · 42-163-33766 · DISTRICT 1
Whitley-Dubose Unit #1H
Frio County · Indio Tanks (Pearsall) field · Producing · Horizontal
Whitley-Dubose Unit #1H (API 42-163-33766) is a horizontal well in Frio County operated by Britanco L.L.C., completed May 26, 2017 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit (amended once), issued September 25, 2013, permitted to 17,000 ft.
It was permitted by Marathon Oil EF LLC and has since transferred to Britanco L.L.C. on the wellbore schedule.
Completion filings report 6 formation tops, including Navarro, Olmos, Austin Chalk, Eagle Ford.
Its lease has reported 106K barrels of oil and 353K mcf of gas since February 2014, last reporting in July 2026.
Operator of record
Permitted by Marathon Oil EF LLC; the EWA schedule now lists a different operator.
Falls City, TX · P-5 Y, filed May 4, 2026 · 13 permits on file · (830) 583-5915
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Britanco L.L.C. |
| Production reports | Britanco, L.L.C.through Apr 2026 |
| Latest permit | Marathon Oil EF LLCSep 25, 2013 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 17,000
- total depth, ft
- 2
- permits on file
- Sep 25, 2013
- last permit issued
- May 26, 2017
- completed
- 106K
- cumulative oil, bbl
- 353K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Feb 2014 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- May 26, 2017
- Shut in
- —
- Plugged
- —
Operator's P-5 on the schedule: Active
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 |
|---|---|---|---|---|---|---|
| Whitley-Dubose Unit O-1-17777 | Indio Tanks (Pearsall) | Britanco, L.L.C. | 1 | 106K | 353K | Feb 2014 – Jul 2026 |
Oil, barrels lease total
Last 12 months 7,653 · prior 12 1,426(+437%)
Gas, mcf lease total
Last 12 months 1,573 · prior 12 5,712(-72%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Marathon Oil EF LLCFeb 2014 → May 2016
- 2Earthstone Operating, LLCJun 2016 → Aug 2022
- 3Alvarado 2014 LLCSep 2022 → Jun 2023
- 4Britanco, L.L.C.Jul 2023 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 770135-98 | Drill | Marathon Oil EF LLC | Aug 27, 2014 | Sep 25, 2013 | Nov 16, 2013 | 17,000 |
| 770135-99 | Drill | Marathon Oil EF LLC | Sep 17, 2013 | Sep 25, 2013 | Nov 16, 2013 | 17,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-1-17777 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 519 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Navarro | 3,955 | -3,436 |
| Olmos | 4,849 | -4,330 |
| Austin Chalk | 6,148 | -5,629 |
| Eagle Ford | 6,733 | -6,214 |
| Buda | 6,832 | -6,313 |
| Pearsall | 9,801 | -9,282 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 10,605 | 16,341 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 13.375 | 3,599 | 17.5 | 2,942 S |
| 9.625 | 5,935 | 12.25 | 342 S |
| 9.625 | 9,800 | 12.25 | 1,466 S |
| 5.5 | 16,440 | 8.5 | 2,051 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 22, 2018 | Nov 8, 2017 | — |
| 00 | Dec 5, 2016 | Nov 18, 2016 | Yes |
| 00 | Dec 2, 2016 | Nov 18, 2016 | Yes |
| 00 | Sep 24, 2014 | Mar 3, 2014 | Yes |
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 42-163-33766 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-163-33766 → 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/16333766, documented in the API reference.