WELL · 42-211-34429 · DISTRICT 10
Chumbley #1256
Hemphill County · Buffalo Wallow (Granite Wash) field · Producing · Vertical
Chumbley #1256 (API 42-211-34429) is a well in Hemphill County operated by Presidio Petroleum LLC, completed February 8, 2009 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit, issued September 16, 2008, permitted to 13,000 ft.
It was permitted by Cordillera Texas, L.P. and has since transferred to Presidio Petroleum LLC on the wellbore schedule.
Completion filings report 14 formation tops, including Douglas, Tonkawa, Missourian, Oswego.
No lease production has been reported under this well’s leases.
Operator of record
Permitted by Cordillera Texas, L.P.; the EWA schedule now lists a different operator.
Canadian, TX · P-5 Y, filed Feb 4, 2026 · 13 permits on file · (800) 461-1604
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Presidio Petroleum LLC |
| Production reports | Presidio Petroleum LLCthrough Apr 2026 |
| Latest permit | Cordillera Texas, L.P.Sep 16, 2008 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 13,000
- total depth, ft
- 1
- permits on file
- Sep 16, 2008
- last permit issued
- Feb 8, 2009
- completed
- 0
- cumulative oil, bbl
- 345K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Feb 2009 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Feb 8, 2009
- Shut in
- —
- Plugged
- —
Operator's P-5 on the schedule: Active
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 |
|---|---|---|---|---|---|---|
| Chumbley G-14-247897 | Buffalo Wallow (Granite Wash) | Presidio Petroleum LLC | 1 | 0 | 345K | Feb 2009 – Jul 2026 |
Gas, mcf lease total
Last 12 months 4,242 · prior 12 6,345(-33%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Forest Oil CorporationFeb 2009 → Nov 2013
- 2LE Norman Operating LLCDec 2013 → Jun 2019
- 3Templar Operating LLCJul 2019 → Dec 2019
- 4Presidio Petroleum LLCJan 2020 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 670005-99 | Drill | Cordillera Texas, L.P. | Aug 27, 2008 | Sep 16, 2008 | Dec 19, 2008 | 13,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — G-14-247897 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 2,561 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Douglas | 7,894 | -5,333 |
| Tonkawa | 8,437 | -5,876 |
| Missourian | 8,958 | -6,397 |
| Oswego | 10,288 | -7,727 |
| Granite Wash | 10,720 | -8,159 |
| Des Moines | 10,844 | -8,283 |
| Britt | 10,909 | -8,348 |
| GW-B | 11,201 | -8,640 |
| GW-C | 11,344 | -8,783 |
| GW-E | 11,707 | -9,146 |
| GW-F | 11,795 | -9,234 |
| AtokaATOKA (DID NOT PENETRATE) | — | — |
| Brown Dolomite | — | — |
| PennsylvanianPENN SHALE | — | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 10,888 | 11,184 | Perforated |
| 11,224 | 11,622 | Perforated |
| 11,731 | 12,034 | Perforated |
| 12,100 | 12,574 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 3,059 | 11 | 1,780 S |
| 5.5 | 13,060 | 7.875 | 885 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 | Jul 9, 2009 | Apr 1, 2009 | Yes |
| 00 | Jun 11, 2009 | — | — |
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 42-211-34429 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-211-34429 → 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/21134429, documented in the API reference.