TEXAS · WELLS · HEMPHILL COUNTY · WILLIS LEASE · API 42-211-33375 · DISTRICT 08
Willis #4421P
Hemphill County · Buffalo Wallow (Granite Wash) field · Producing · Vertical
Willis #4421P (API 42-211-33375) is a well in Hemphill County operated by Presidio Petroleum LLC, completed September 7, 2005 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit, issued July 28, 2005, permitted to 11,890 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 Oswege Lm, Granite Wash.
Its lease has reported 4.53K barrels of oil and 613K mcf of gas since September 2005, last reporting volume in August 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 Aug 2026 |
| Latest permit | Noble Energy Production, Inc.Jul 28, 2005 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 11,890
- total depth, ft
- 1
- permits on file
- Jul 28, 2005
- last permit issued
- Sep 7, 2005
- completed
- 4.53K
- cumulative oil, bbl
- 613K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · SEP 2005 THROUGH AUG 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Sep 7, 2005
- 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.
Wells nearby
Every well with a location on file around this well, in any state, nearest first.
Texas locations come from drilling permits, so most older Texas wells have none and are not listed.
Lease production
PDQ LEASE REPORTS · REPORTED THROUGH AUG 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 |
|---|---|---|---|---|---|---|
| Willis G-14-216420 | Buffalo Wallow (Granite Wash) | Presidio Petroleum LLC | 1 | 4.53K | 613K | Sep 2005 – Aug 2026 |
Gas, mcf lease total
Last 12 months 7,379 · prior 12 8,860(-17%)
Wells named Willis
Presidio Petroleum LLC's other wells filed under this lease name in Hemphill County, newest permit first. The RRC gives a gas well its own lease number, so the name is what joins the wells of a unit.
Loading the lease's wellsChain of custody
Every operator that reported production on this well's lease, in order.
- 1Noble Energy Production, Inc.Sep 2005 → Aug 2007
- 2Noble Energy IncSep 2007 → Aug 2012
- 3Unit Petroleum CompanySep 2012 → Sep 2023
- 4Eqv Operating LLCOct 2023 → Feb 2026
- 5Presidio Petroleum LLCMar 2026 → Aug 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 604099-99 | Drill | Noble Energy Production, Inc. | Jul 28, 2005 | Jul 28, 2005 | Aug 6, 2005 | 13,500 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Sep 7, 2005 | Willis G-14-216420 | Buffalo Wallow (Granite Wash) | Presidio Petroleum LLC | Producing | 11,890 |
Formation tops
As filed on W-2/G-1. Subsea from 2,638 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Oswege LM | 10,754 | -8,116 |
| Granite WashGRANITE WASH A-1 | 11,086 | -8,448 |
| Granite WashGRANITE WASH B | 11,312 | -8,674 |
| Granite WashGRANITE WASH C | 11,628 | -8,990 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 11,203 | 11,275 | Perforated |
| 11,368 | 11,582 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 3,202 | 11 | 1,475 S |
| 4.5 | 11,890 | 7.875 | 360 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 | Oct 24, 2006 | May 8, 2006 | Yes |
| 00 | Jun 15, 2006 | — | — |
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 42-211-33375 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-211-33375 → scanned completion filings
Log images filed since 2004 open from the RRC's log search for this well; none are loaded here 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/21133375, documented in the API reference.