Petrora

WELL · 42-215-31043 · DISTRICT 4

Swallow Gas Unit #9

N

Hidalgo County · Donna (6940) field  · Vertical

Swallow Gas Unit #9 (API 42-215-31043) is a well in Hidalgo County operated by Arco Oil & Gas CO., completed September 10, 1980.

The RRC has issued 5 drilling permits (amended once) between 1980 and 2007, permitted to 7,100 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 4 formation tops, including Frio, Armstrong, Upper Harrell, Swallow.

Its 7 leases have reported 1.15K barrels of oil and 737K mcf of gas since January 1993, last reporting in July 2026. The leases carry 5 wells, so these are lease totals, not this well alone.

Operator of record

Arco Oil & Gas Co.

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 scheduleArco Oil & Gas Co.
Production reportsBP America Production Companythrough Dec 2005
Latest permitBP 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.

7,100
total depth, ft
6
permits on file
May 12, 2007
last permit issued
Sep 10, 1980
completed
1.15K
cumulative oil, bbl
737K
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule
OFF SCHEDULE
Completed
Sep 10, 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 7 leases this well is completed on; they carry 5 wells in total, so volumes are shared.Why →

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
Swallow Gas Unit G-4-157398Donna (Harrell)Wagner Oil Company10333KDec 1995 – Jul 2026
Swallow Gas Unit G-4-243394Donna (Armstrong)Wagner Oil Company100Jul 2007 – Jul 2026
Swallow Gas Unit G-4-153875Donna (Swallow)Vastar Resources, Inc.10202KMar 1995 – Dec 1995
Swallow Gas Unit O-4-12371Donna (6180)Vastar Resources, Inc.11.15K5.85KJul 1994 – Nov 1995
Swallow Gas Unit G-4-143930Donna (6180)Vastar Resources, Inc.10197KJan 1993 – Jul 1994
— G-4-90729——000—
— G-4-90730——000—

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.

  1. 1Arco Oil & Gas Co.Jan 1993 → Feb 1994
  2. 2Vastar Resources, Inc.Mar 1994 → Dec 2001
  3. 3BP America Production CompanyJan 2002 → Dec 2005

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
638388-99RecompletionBP America Production CompanyMay 4, 2007May 12, 2007Jul 17, 20077,075
441933-99RecompletionVastar Resources, Inc.Nov 15, 1995Nov 15, 1995Nov 6, 19957,075
432686-99RecompletionVastar Resources, Inc.Feb 8, 1995Feb 8, 1995Mar 10, 19957,075
399804-98RecompletionArco Oil & Gas Co.Sep 10, 1992Jun 8, 1992Jun 29, 19927,075
399804-99RecompletionArco Oil & Gas Co.Jun 1, 1992Jun 8, 1992—7,075
84745-99DrillArco Oil & Gas Co.Jun 23, 1980Jun 23, 1980Jul 6, 19807,100

Completions

CompletedLeaseFieldOperatorStatusDepth
—— G-4-90729————
—— G-4-90730————
—— G-4-143930————
—— G-4-153875————
—— G-4-157398————
—— G-4-243394————
—— O-4-12371————

Formation tops

As filed on W-2/G-1. Subsea from 79 ft elevation.Download CSV →

FormationMD ftSubsea
Frio5,050-4,971
FrioTOP FRIO5,050-4,971
Armstrong5,285-5,206
Upper Harrell5,370-5,291
Swallow5,980-5,901

Perforations

Perforated and open-hole intervals.

FromToType
5,2885,304Perforated
5,3695,387Perforated
6,0746,081Perforated
6,0926,095Perforated
6,1676,174Perforated
6,1786,187Perforated
6,8406,860Perforated
6,9506,960Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
10.751,95614.75—
2.3756,750——
2.3756,910——
77,0689.875—

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 →

SuffixFiledW-2 / G-1 dateLogs referenced
00Jan 24, 2009Aug 5, 2008—
00Jan 5, 2009——
00May 6, 1996Dec 15, 1995Yes
00Mar 28, 1996——
00Jan 9, 1996Apr 13, 1995Yes
00May 9, 1995——
00Oct 4, 1994Aug 7, 1994—
00Aug 25, 1994——
00Mar 3, 1993Nov 20, 1992—
00Feb 23, 1993——
00Jan 12, 1984Oct 7, 1980—

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.

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/21531043, documented in the API reference.