TEXAS · WELLS · ECTOR COUNTY · FOSTER GBSA UNIT LEASE · API 42-135-38725 · DISTRICT 7B
Foster Gbsa Unit #311
Ector County · Cowden South field · Producing · Vertical
Foster Gbsa Unit #311 (API 42-135-38725) is a well in Ector County operated by Oxy USA Inc., completed August 21, 2004 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit, issued July 21, 2004, permitted to 4,450 ft.
It was permitted by Latigo Petroleum Texas, LP and has since transferred to Oxy USA Inc. on the wellbore schedule.
Completion filings report 4 formation tops, including Rustler, Yates, Queen, Grayburg.
Its lease has reported 1.48M barrels of oil and 585K mcf of gas since January 1993, last reporting volume in April 2026. The lease carries 131 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by Latigo Petroleum Texas, LP; the EWA schedule now lists a different operator.
- Based in
- Houston, TX
- P-5 status
- Active (A)
- P-5 last filed
- Jan 26, 2026
- Permits on file
- 3,316
- Phone
- (713) 215-7000
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | OXY USA Inc. |
| Production reports | OXY USA Inc.through Apr 2026 |
| Latest permit | Latigo Petroleum Texas, LPJul 21, 2004 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 4,450
- total depth, ft
- 1
- permits on file
- Jul 21, 2004
- last permit issued
- Aug 21, 2004
- completed
- 1.48M
- cumulative oil, bbl
- 585K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Apr 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Aug 21, 2004
- 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 131 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Foster Gbsa Unit O-10-19371 | Cowden, South | OXY USA Inc. | 131 | 1.48M | 585K | Jan 1993 – Apr 2026 |
Oil, barrels lease total
Last 12 months 10,616 · prior 12 11,798(-10%)
Gas, mcf lease total
Last 12 months 6,693 · prior 12 269
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1OXY USA Inc.Jan 1993 → Apr 2026
- 2Saga Pet. Ltd Liability Co of CoAug 1998 → Apr 2004
- 3Latigo Petroleum Texas, LPMay 2004 → Feb 2008
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 548435-99 | Drill | Latigo Petroleum Texas, LP | Jul 19, 2004 | Jul 21, 2004 | Aug 1, 2004 | 5,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Aug 21, 2004 | Foster Gbsa Unit O-10-19371 | Cowden South | OXY USA Inc. | Producing | 4,450 |
Formation tops
As filed on W-2/G-1. Subsea from 2,967 ft elevation.Download CSV →
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 4,235 | 4,300 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 1,374 | 12.25 | 750 S |
| 5.5 | 4,447 | 7.875 | 700 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. The record date is the RRC's own date on the record, not the day the report was filed: 462,034 of the state's filings carry 1984-01-12. About these reports →
| Suffix | RRC record date | W-2 / G-1 date | Logs referenced |
|---|---|---|---|
| 00 | May 12, 2005 | Jan 24, 2005 | Yes |
| 00 | Feb 25, 2005 | — | — |
Well logs
1 log loaded from the RRC's log index, the latest received Jul 17, 2008. Density, Neutron. These are the logs loaded into Petrora from the Railroad Commission's inventories, not necessarily every log run on the well. The RRC holds the files; each opens from its log search for the well. The kind is the RRC's description of the log; the interval is the one filed for it.
Open the RRC's log search for this well ↗| Logas described | Files | Intervalft, as filed | Datereceived | SizeMB |
|---|---|---|---|---|
| NEUTRON/DENSITY POROSITYSpans Rustler, Yates, Queen, Grayburg | TIFF | 100 to 4,450 | Jul 17, 2008run Aug 5, 2004 | 1.40 |
"Spans" is by this well's own filed formation tops: a formation runs from its top to the next deeper top filed, and the deepest runs to the bottom of the log. Depths are measured along the wellbore, so on a horizontal the lateral counts in the formation it was landed in.
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 42-135-38725 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-135-38725 → scanned completion filings
The logs loaded for this well are under Well logs, with the RRC's log search for it. The University Lands library has no per-well link: then paste it into its 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/13538725, documented in the API reference.