TEXAS · WELLS · HEMPHILL COUNTY · HEFLEY LEASE · API 42-211-33651 · DISTRICT 08
Hefley #4120P
Hemphill County · Buffalo Wallow (Granite Wash) field · Producing · Vertical
Hefley #4120P (API 42-211-33651) is a well in Hemphill County operated by Presidio Petroleum LLC, completed September 20, 2006 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit, issued July 12, 2006, permitted to 11,806 ft.
It was permitted by Noble Energy Production, Inc. and has since transferred to Presidio Petroleum LLC on the wellbore schedule.
Completion filings report 2 formation tops, including Oswego, Granite Wash.
Its lease has reported 4.15K barrels of oil and 614K mcf of gas since September 2006, last reporting volume in March 2026.
Operator of record
Permitted by Noble Energy Production, Inc.; the EWA schedule now lists a different operator.
- Based in
- Canadian, TX
- P-5 status
- Active (A)
- P-5 last filed
- May 1, 2026
- Permits on file
- 13
- Phone
- (806) 217-4483
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Presidio Petroleum LLC |
| Production reports | Presidio Petroleum LLCthrough Mar 2026 |
| Latest permit | Noble Energy Production, Inc.Jul 12, 2006 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 11,806
- total depth, ft
- 1
- permits on file
- Jul 12, 2006
- last permit issued
- Sep 20, 2006
- completed
- 4.15K
- cumulative oil, bbl
- 614K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Sep 2006 THROUGH Mar 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Sep 20, 2006
- Shut in
- —
- Plugged
- —
Operator's P-5 on the schedule: Active (A)
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 |
|---|---|---|---|---|---|---|
| Hefley G-14-227475 | Buffalo Wallow (Granite Wash) | Presidio Petroleum LLC | 1 | 4.15K | 614K | Sep 2006 – Mar 2026 |
Gas, mcf lease total
Last 12 months 5,574 · prior 12 7,039(-21%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Noble Energy Production, Inc.Sep 2006 → Aug 2007
- 2Noble Energy IncSep 2007 → Aug 2012
- 3Unit Petroleum CompanySep 2012 → Sep 2023
- 4Eqv Operating LLCOct 2023 → Feb 2026
- 5Presidio Petroleum LLCMar 2026 → Mar 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 622460-99 | Drill | Noble Energy Production, Inc. | Jul 12, 2006 | Jul 12, 2006 | Aug 8, 2006 | 13,500 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Sep 20, 2006 | Hefley G-14-227475 | Buffalo Wallow (Granite Wash) | Presidio Petroleum LLC | Producing | 11,806 |
Formation tops
As filed on W-2/G-1. Subsea from 2,652 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Oswego | 10,725 | -8,073 |
| Granite WashGRANITE WASH A-1 | 11,091 | -8,439 |
| Granite WashGRANITE WASH A | 11,177 | -8,525 |
| Granite WashGRANITE WASH B | 11,339 | -8,687 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 11,189 | 11,263 | Perforated |
| 11,349 | 11,526 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 3,105 | 12.25 | 1,750 S |
| 4.5 | 11,806 | 7.875 | 625 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. The record date is the RRC's own date on the record, not the day the report was filed: 462,034 of the state's filings carry 1984-01-12. About these reports →
| Suffix | RRC record date | W-2 / G-1 date | Logs referenced |
|---|---|---|---|
| 00 | Aug 14, 2007 | Apr 16, 2007 | — |
| 00 | Jul 6, 2007 | Mar 29, 2007 | Yes |
| 00 | Jun 27, 2007 | — | — |
Well logs
1 log loaded from the RRC's log index, the latest received Sep 2, 2009. Neutron. These are the logs loaded into Petrora from the Railroad Commission's inventories, not necessarily every log run on the well. The RRC holds the files; each opens from its log search for the well. The kind is the RRC's description of the log; the interval is the one filed for it.
Open the RRC's log search for this well ↗| Logas described | Files | Intervalft, as filed | Datereceived | SizeMB |
|---|---|---|---|---|
| NEUTRON POROSITYSpans Oswego, Granite Wash | TIFF | 8,000 to 11,780 | Sep 2, 2009run Aug 31, 2006 | 1.37 |
"Spans" is by this well's own filed formation tops: a formation runs from its top to the next deeper top filed, and the deepest runs to the bottom of the log. Depths are measured along the wellbore, so on a horizontal the lateral counts in the formation it was landed in.
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 42-211-33651 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-211-33651 → scanned completion filings
The logs loaded for this well are under Well logs, with the RRC's log search for it.
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/21133651, documented in the API reference.