WELL · 42-483-30611 · DISTRICT 10
Hefleg W. R. Gas Unit #1
Wheeler County · Billy Rose(granite Wash 7800) field · Vertical
Hefleg W. R. Gas Unit #1 (API 42-483-30611) is a well in Wheeler County operated by Leede Oil & Gas Inc., completed July 1, 1979.
The RRC has issued 2 drilling permits between 1979 and 2004, permitted to 17,500 ft.
It was permitted by Patina Oil & Gas Corporation and has since transferred to Leede Oil & Gas Inc. on the wellbore schedule.
Completion filings report 6 formation tops, including Brown Dolomite, Granite Wash, Eroded Sylvan, Viola.
Its 3 leases have reported 80.8K barrels of oil and 1.29M 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 Patina Oil & Gas Corporation; the EWA schedule now lists a different operator.
Greenwood VLG, CO · P-5 Y, filed Apr 4, 1997 · 95 permits on file
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Leede Oil & Gas Inc. |
| Production reports | Presidio Petroleum LLCthrough Mar 2026 |
| Latest permit | Patina Oil & Gas CorporationSep 24, 2004 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 17,500
- total depth, ft
- 2
- permits on file
- Sep 24, 2004
- last permit issued
- Jul 1, 1979
- completed
- 80.8K
- cumulative oil, bbl
- 1.29M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Jul 1, 1979
- 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 |
|---|---|---|---|---|---|---|
| Hefley, W.R. O-14-7544 | Billy-Rose (Granite Wash 5600) | Presidio Petroleum LLC | 1 | 80.8K | 697K | Sep 2004 – Jul 2026 |
| Hefley, W. R. Gas Unit G-14-89323 | Billy Rose (Gran Wash 5000) | Unit Petroleum Company | 1 | 0 | 220K | Jan 1993 – Jan 2022 |
| Hefley, W.R. Gas Unit G-14-86282 | Billy-Rose (Granite Wash 5400) | Noble Energy Production, Inc. | 1 | 0 | 372K | Jan 1993 – Jun 2007 |
Gas, mcf lease total
Last 12 months 9,229 · prior 12 11,537(-20%)
Oil, barrels lease total
Last 12 months 673 · prior 12 862(-22%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Enron Oil & Gas CompanyJan 1993 → Sep 1999
- 2EOG Resources, Inc.Oct 1999 → Feb 2000
- 3Burlington Resources Oil&gas Co.Mar 2000 → Dec 2000
- 4Burlington Resources O & G Co LPJan 2001 → Apr 2002
- 5Patina Oil & Gas CorporationSep 2004 → May 2005
- 6Noble Energy Production, Inc.Jun 2005 → Aug 2007
- 7Noble Energy IncSep 2007 → Aug 2012
- 8Unit Petroleum CompanySep 2012 → Sep 2023
- 9Eqv Operating LLCOct 2023 → Feb 2026
- 10Presidio Petroleum LLCMar 2026 → Mar 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 551513-99 | Recompletion | Patina Oil & Gas Corporation | Sep 24, 2004 | Sep 24, 2004 | — | 6,000 |
| 40777-99 | Drill | Leede Oil & Gas Inc. | Jan 12, 1979 | Jan 12, 1979 | Jan 28, 1979 | 17,500 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — G-14-86282 | — | — | — | — |
| — | — G-14-89323 | — | — | — | — |
| — | — O-14-7544 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 2,215 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Brown Dolomite | 3,524 | -1,309 |
| Granite Wash | 3,620 | -1,405 |
| Eroded Sylvan | 14,054 | -11,839 |
| Viola | 14,165 | -11,950 |
| Simpson | 14,673 | -12,458 |
| Ellenburger | 15,403 | -13,188 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 5,021 | 5,042 | Perforated |
| 5,388 | 7,880 | Perforated |
| 5,598 | 5,821 | Perforated |
| 7,872 | 7,880 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 20 | 79 | 30 | 180 S |
| 13.375 | 412 | 17.5 | 660 S |
| 9.625 | 4,725 | 12.25 | 400 S |
| 9.625 | 4,725 | 8.75 | 2,400 S |
| 9.625 | 4,725 | 13 | 2,400 S |
| 2.375 | 5,327 | — | — |
| 2.375 | 5,376 | — | — |
| 2.375 | 7,764 | — | — |
| 7 | 8,078 | 8.75 | 850 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 | Mar 23, 2005 | Sep 27, 2004 | — |
| 00 | Jan 13, 2005 | — | — |
| 00 | Jan 12, 1984 | Jun 26, 1980 | — |
| 00 | Jan 12, 1984 | Feb 28, 1980 | — |
| 00 | Jan 12, 1984 | Jan 4, 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.
- Wellbore filings for 42-483-30611 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-483-30611 → 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/48330611, documented in the API reference.