WELL · 42-311-31713 · DISTRICT 1
Foster #4
McMullen County · A.W.P. (Olmos) field · Vertical
Foster #4 (API 42-311-31713) is a plugged well in Mcmullen County, plugged August 18, 2010, last operated by Xto Energy Inc..
The RRC has issued one drilling permit, issued June 8, 1982, permitted to 10,100 ft.
It was permitted by Royal Oil & Gas Corp. and has since transferred to Xto Energy Inc. on the wellbore schedule.
Completion filings report 3 formation tops, including Carrizo, Midway, Olmoa.
Its lease has reported 202K barrels of oil and 2.64M mcf of gas since January 1993, last reporting in July 2026. The lease carries 6 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by Royal Oil & Gas Corp.; the EWA schedule now lists a different operator.
- Based in
- Spring, TX
- P-5 status
- Active – Extension (X)
- P-5 last filed
- Apr 8, 2026
- Permits on file
- 16,156
- Phone
- (346) 502-1572
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | XTO Energy Inc. |
| Production reports | XTO Energy Inc.through Apr 2026 |
| Latest permit | Royal Oil & Gas Corp.Jun 8, 1982 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 10,100
- total depth, ft
- 1
- permits on file
- Jun 8, 1982
- last permit issued
- Jun 11, 1984
- completed
- 202K
- cumulative oil, bbl
- 2.64M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Jun 11, 1984
- Shut in
- —
- Plugged
- Aug 18, 2010
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 6 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Foster O-1-8262 | A.W.P. (Olmos) | XTO Energy Inc. | 6 | 202K | 2.64M | Jan 1993 – Jul 2026 |
Gas, mcf lease total
Last 12 months 11,697 · prior 12 17,330(-33%)
Oil, barrels lease total
Last 12 months 511 · prior 12 740(-31%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Dekalb Energy CompanyJan 1993 → Jan 1993
- 2Dreyfus, Louis Natural Gas CorpFeb 1993 → Nov 2001
- 3Dominion Oklahoma Texas E&P, IncDec 2001 → Jul 2007
- 4XTO Energy Inc.Aug 2007 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 163427-99 | Drill | Royal Oil & Gas Corp. | Apr 10, 1984 | Jun 8, 1982 | Apr 20, 1984 | 10,100 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-1-8262 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 338 ft elevation.Download CSV →
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 9,734 | 9,759 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 9.625 | 1,563 | 13.5 | 750 sx |
| 5.5 | 10,100 | 8.75 | 1,100 sx |
| 5.5 | — | — | 1,200 sx |
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 | Jul 3, 1984 | Jun 18, 1984 | — |
| 00 | Jun 26, 1984 | Jun 18, 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 42-311-31713 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-311-31713 → 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/31131713, documented in the API reference.