WELL · 42-215-31194 · DISTRICT 4
Swallow Gas Unit #10
Hidalgo County · Donna (6850) field · Vertical
Swallow Gas Unit #10 (API 42-215-31194) is a well in Hidalgo County operated by Arco Oil & Gas CO., completed March 1, 1982.
The RRC has issued 3 drilling permits between 1981 and 1995, permitted to 8,500 ft.
It was permitted by Vastar Resources, Inc. and has since transferred to Arco Oil & Gas CO. on the wellbore schedule.
Completion filings report 3 formation tops, including Armstrong, Rice 4, Jancik.
No lease production has been reported under this well’s leases.
Operator of record
Permitted by Vastar Resources, Inc.; the EWA schedule now lists a different operator.
- Based in
- Plano, TX
- P-5 status
- Inactive (I)
- P-5 last filed
- Nov 23, 2004
- Permits on file
- 3,065
- Phone
- (972) 509-7001
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Arco Oil & Gas Co. |
| Production reports | Wagner Oil Companythrough Apr 2026 |
| Latest permit | Vastar Resources, Inc.Feb 27, 1995 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 8,500
- total depth, ft
- 3
- permits on file
- Feb 27, 1995
- last permit issued
- Mar 1, 1982
- completed
- 0
- cumulative oil, bbl
- 518K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Mar 1, 1982
- Shut in
- —
- Plugged
- —
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 |
|---|---|---|---|---|---|---|
| Swallow Gas Unit G-4-154576 | Donna (Armstrong) | Wagner Oil Company | 1 | 0 | 421K | May 1995 – Jul 2026 |
| Swallow Gas Unit G-4-124482 | Donna (Frio 5500) | Vastar Resources, Inc. | 1 | 0 | 96.8K | Jan 1993 – May 1995 |
Gas, mcf lease total
Last 12 months 3,179 · prior 12 3,928(-19%)
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 → Dec 2001
- 3BP America Production CompanyJan 2002 → Dec 2009
- 4Wagner Oil CompanyJan 2010 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 433219-99 | Recompletion | Vastar Resources, Inc. | Feb 23, 1995 | Feb 27, 1995 | Mar 17, 1995 | 7,930 |
| 328768-99 | Recompletion | Arco Oil & Gas Co. | Apr 8, 1987 | Apr 14, 1987 | — | 8,500 |
| 139873-99 | Drill | Arco Oil & Gas Co. | Nov 6, 1981 | Nov 6, 1981 | — | 8,500 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — G-4-124482 | — | — | — | — |
| — | — G-4-154576 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 100 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Armstrong | 5,321 | -5,221 |
| Rice 4 | 6,883 | -6,783 |
| Jancik | 7,230 | -7,130 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 5,321 | 5,326 | Perforated |
| 5,494 | 5,510 | Perforated |
| 6,883 | 6,893 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 10.75 | 2,018 | 14.75 | 1,075 S |
| 2.375 | 6,800 | — | — |
| 7 | 7,930 | 9.875 | 1,797 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 | Dec 12, 1995 | Jun 14, 1995 | Yes |
| 00 | Jul 12, 1995 | — | — |
| 00 | Aug 5, 1987 | Jun 24, 1987 | Yes |
| 00 | Jul 7, 1987 | — | — |
| 00 | Jan 12, 1984 | Apr 15, 1982 | — |
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 42-215-31194 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-215-31194 → 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/21531194, documented in the API reference.