WELL · 42-351-30525 · DISTRICT 6
Arco-Vastar Unit A-172 #1
Newton County · Brookeland (Austin Chalk 8800) field · Horizontal
Arco-Vastar Unit A-172 #1 (API 42-351-30525) is a plugged horizontal well in Newton County, plugged May 22, 2000, last operated by Union Pacific Resources Company.
The RRC has issued one drilling permit (amended once), issued May 30, 1991, permitted to 14,000 ft.
It was permitted by Arco Oil & Gas CO. and has since transferred to Union Pacific Resources Company on the wellbore schedule.
Completion filings report 4 formation tops, including Midway, Saratoga, Austin Chalk, Top "Hard" Austin.
Its lease has reported 38.7K barrels of oil and 262K mcf of gas since January 1993, last reporting in July 2000.
Operator of record
Union Pacific Resources Company
Permitted by Arco Oil & Gas Co.; the EWA schedule now lists a different operator.
- Based in
- Fort Worth, TX
- P-5 status
- Inactive (I)
- P-5 last filed
- May 2, 2000
- Permits on file
- 5,638
- Phone
- (817) 321-7424
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Union Pacific Resources Company |
| Production reports | Union Pacific Resources Companythrough Jun 1997 |
| Latest permit | Arco Oil & Gas Co.May 30, 1991 |
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
- May 30, 1991
- last permit issued
- Apr 27, 1992
- completed
- 38.7K
- cumulative oil, bbl
- 262K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2000
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Apr 27, 1992
- Shut in
- —
- Plugged
- May 22, 2000
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 |
|---|---|---|---|---|---|---|
| Arco-Vastar Unit A-172 O-6-13031 | Brookeland (Austin Chalk, 8800) | Union Pacific Resources Company | 1 | 38.7K | 262K | Jan 1993 – Jul 2000 |
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 → Aug 1993
- 2Vastar Resources, Inc.Oct 1994 → Mar 1995
- 3Union Pacific Resources CompanySep 1995 → Jun 1997
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 388424-98 | Drill | Arco Oil & Gas Co. | Jul 3, 1992 | May 30, 1991 | — | 14,000 |
| 388424-99 | Drill | Arco Oil & Gas Co. | May 30, 1991 | May 30, 1991 | Mar 1, 1992 | 13,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Apr 27, 1992 | Arco-Vastar Unit A-172 O-6-13031 | Brookeland (Austin Chalk 8800) | Union Pacific Resources Company | Plugged | — |
Formation tops
As filed on W-2/G-1. Subsea from 377 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| MidwayMIDWAY SHALE | 7,283 | -6,906 |
| Saratoga | 8,424 | -8,047 |
| Austin ChalkTOP OF AUSTIN | 9,396 | -9,019 |
| Top "Hard" Austin | 9,955 | -9,578 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 9,680 | 13,307 | Perforated |
| 10,075 | 13,307 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 10.75 | 1,538 | 13.5 | 639 S |
| 7.625 | 9,195 | 9.875 | 210 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 | Aug 29, 1994 | Jun 24, 1994 | — |
| 00 | Jul 9, 1992 | May 13, 1992 | Yes |
| 00 | Jun 29, 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 42-351-30525 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-351-30525 → 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/35130525, documented in the API reference.