WELL · 42-215-01281 · DISTRICT 4
Swallow Gas Unit #1
Hidalgo County · Donna (6940) field · Vertical
Swallow Gas Unit #1 (API 42-215-01281) is a well in Hidalgo County operated by Arco Oil & Gas CO., completed March 31, 1980.
The RRC has issued 4 drilling permits (amended once) between 1980 and 2007, permitted to 7,841 ft.
It was permitted by BP America Production Company and has since transferred to Arco Oil & Gas CO. on the wellbore schedule.
Completion filings report 5 formation tops, including 6700 Sand, 6850 Sand, 6940, 6940'.
Its 3 leases have reported 47.1K barrels of oil and 159K mcf of gas since January 1993, last reporting in July 2026. The leases carry 3 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by BP America Production Company; the EWA schedule now lists a different operator.
Plano, TX · P-5 Y, filed Oct 7, 2005 · 3,065 permits on file
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 | BP America Production CompanyMay 12, 2007 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 7,841
- total depth, ft
- 5
- permits on file
- May 12, 2007
- last permit issued
- Mar 31, 1980
- completed
- 47.1K
- cumulative oil, bbl
- 159K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Mar 31, 1980
- 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 3 leases this well is completed on; they carry 3 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Swallow Gas Unit G-4-230631 | Donna (6600) | Wagner Oil Company | 1 | 0 | 0 | Jul 2007 – Jul 2026 |
| Swallow Gas Unit O-4-12556 | Donna (6700) | Wagner Oil Company | 1 | 47.1K | 50.3K | May 1996 – Jul 2026 |
| Swallow Gas Unit G-4-115350 | Donna (Rice 3-6800) | Vastar Resources, Inc. | 1 | 0 | 108K | Jan 1993 – May 1996 |
Oil, barrels lease total
Last 12 months 185 · prior 12 611(-70%)
Gas, mcf lease total
Last 12 months 217 · prior 12 270(-20%)
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 |
|---|---|---|---|---|---|---|
| 638390-99 | Recompletion | BP America Production Company | May 4, 2007 | May 12, 2007 | Jul 10, 2007 | 7,841 |
| 443851-98 | Recompletion | Vastar Resources, Inc. | Apr 23, 1996 | Jan 30, 1996 | Apr 15, 1996 | 7,841 |
| 443851-99 | Recompletion | Vastar Resources, Inc. | Jan 18, 1996 | Jan 30, 1996 | — | 7,841 |
| 258709-99 | Recompletion | Arco Oil & Gas Co. | Nov 1, 1984 | Nov 26, 1984 | — | 7,841 |
| 76363-99 | Recompletion | Arco Oil & Gas Co. | Mar 27, 1980 | Mar 27, 1980 | — | 7,841 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — G-4-115350 | — | — | — | — |
| — | — G-4-230631 | — | — | — | — |
| — | — O-4-12556 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 80 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| 6700 Sand | 6,670 | -6,590 |
| 6850 Sand | 6,830 | -6,750 |
| 6940 | 6,935 | -6,855 |
| 6940' | 6,935 | -6,855 |
| Jancik | 7,180 | -7,100 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 6,594 | 6,600 | Perforated |
| 6,668 | 6,680 | Perforated |
| 6,788 | 6,796 | Perforated |
| 6,936 | 6,954 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 16 | 220 | — | — |
| 10.75 | 1,459 | — | 1,100 S |
| 10.75 | 1,499 | — | — |
| 2.375 | 6,733 | — | — |
| 2 | 7,148 | — | — |
| 7 | 7,450 | — | — |
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 | Nov 14, 2007 | Sep 24, 2007 | — |
| 00 | Nov 13, 2007 | Sep 24, 2007 | — |
| 00 | Nov 7, 2007 | — | — |
| 00 | Jul 31, 1996 | May 15, 1996 | Yes |
| 00 | May 21, 1996 | — | — |
| 00 | Mar 29, 1985 | Feb 14, 1985 | — |
| 00 | Mar 16, 1985 | Jan 22, 1985 | — |
| 00 | Jan 12, 1984 | Apr 30, 1980 | — |
| 00 | Jan 12, 1984 | Oct 1, 1951 | — |
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 42-215-01281 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-215-01281 → 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/21501281, documented in the API reference.