WELL · 42-241-30511 · DISTRICT 6
Arco-Vastar Unit A-256 #1RE
Jasper County · Brookeland (Austin Chalk 8800) field · Horizontal
Arco-Vastar Unit A-256 #1RE (API 42-241-30511) is a plugged horizontal well in Jasper County, plugged May 14, 1996, last operated by Union Pacific Resources Company.
The RRC has issued 2 drilling permits between 1991 and 2011, permitted to 14,000 ft.
It was permitted by Endeavor Natural Gas, LP and has since transferred to Union Pacific Resources Company on the wellbore schedule.
Completion filings report 6 formation tops, including Midway, Saratoga, Base Upper Chalk, Austin Chalk.
Its 2 leases have reported 49.4K barrels of oil and 470K mcf of gas since January 1993, last reporting in February 2020. The leases carry 2 wells, so these are lease totals, not this well alone.
Operator of record
Union Pacific Resources Company
Permitted by Endeavor Natural Gas, LP; the EWA schedule now lists a different operator.
Fort Worth, TX · P-5 Y, filed Feb 9, 2001 · 5,638 permits on file
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Union Pacific Resources Company |
| Production reports | BP America Production Companythrough Jun 2017 |
| Latest permit | Endeavor Natural Gas, LPFeb 8, 2011 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 14,000
- total depth, ft
- 2
- permits on file
- Feb 8, 2011
- last permit issued
- Jan 13, 1992
- completed
- 49.4K
- cumulative oil, bbl
- 470K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Feb 2020
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Jan 13, 1992
- Shut in
- —
- Plugged
- May 14, 1996
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 2 leases this well is completed on; they carry 2 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| BP Fee A-344 O-6-15132 | Brookeland (Austin Chalk, 8800) | BP America Production Company | 1 | 35K | 228K | Aug 2011 – Feb 2020 |
| Arco-Vastar Unit A-256 O-6-12967 | Brookeland (Austin Chalk, 8800) | Union Pacific Resources Company | 1 | 14.4K | 243K | Jan 1993 – Sep 1996 |
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.
- 1Arco Oil & Gas Co.Jan 1993 → Feb 1994
- 2Vastar Resources, Inc.Mar 1994 → Jan 1995
- 3Endeavor Natural Gas, LPSep 2011 → Jan 2015
- 4BP America Production CompanyApr 2015 → Jun 2017
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 709889-99 | Reenter | Endeavor Natural Gas, LP | Feb 8, 2011 | Feb 8, 2011 | Jun 29, 2011 | 9,770 |
| 393193-99 | Drill | Arco Oil & Gas Co. | Oct 24, 1991 | Oct 24, 1991 | Nov 2, 1992 | 14,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-6-12967 | — | — | — | — |
| — | — O-6-15132 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 301 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Midway | 6,757 | -6,456 |
| Saratoga | 7,977 | -7,676 |
| Base Upper Chalk | 8,375 | -8,074 |
| Austin Chalk | 8,947 | -8,646 |
| Austin ChalkBASE AUSTIN | 9,507 | -9,206 |
| Edwards | 9,617 | -9,316 |
| Hard Austin | 9,647 | -9,346 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 9,310 | 15,510 | Open hole |
| 9,800 | 12,616 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 10.75 | 1,708 | 14.75 | 1,065 S |
| 7.625 | 9,313 | 9.875 | 840 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 | Jan 8, 2013 | Sep 19, 2011 | Yes |
| 00 | Mar 25, 1992 | Feb 3, 1992 | Yes |
| 00 | Mar 13, 1992 | — | — |
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 42-241-30511 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-241-30511 → 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/24130511, documented in the API reference.