TEXAS · WELLS · PECOS COUNTY · LONGFELLOW LEASE · API 42-371-36830 · DISTRICT 7B
Longfellow #11
Pecos County · Pinon (Overthrust) field · Producing · Vertical
Longfellow #11 (API 42-371-36830) is a well in Pecos County operated by Longfellow Energy LP, completed August 19, 1998 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit, issued April 24, 1998, permitted to 5,506 ft.
It was permitted by Riata Energy, Inc. and has since transferred to Longfellow Energy LP on the wellbore schedule.
Completion filings report 4 formation tops, including Base Cretaceous (marker), Dimple, Tesnus, Caballos Equivalent.
Its lease has reported 286 barrels of oil and 347K mcf of gas since August 1998, last reporting volume in January 2026.
Operator of record
Permitted by Riata Energy, Inc.; the EWA schedule now lists a different operator.
- Based in
- Dallas, TX
- P-5 status
- Active (A)
- P-5 last filed
- Mar 26, 2026
- Permits on file
- 41
- Phone
- (972) 590-9900
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Longfellow Energy LP |
| Production reports | Longfellow Energy, LPthrough Jan 2026 |
| Latest permit | Riata Energy, Inc.Apr 24, 1998 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 5,506
- total depth, ft
- 1
- permits on file
- Apr 24, 1998
- last permit issued
- Aug 19, 1998
- completed
- 286
- cumulative oil, bbl
- 347K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Aug 1998 THROUGH Jan 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Aug 19, 1998
- 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 |
|---|---|---|---|---|---|---|
| Longfellow G-10-170418 | Pinon (Overthrust) | Longfellow Energy, LP | 1 | 286 | 347K | Aug 1998 – Jan 2026 |
Gas, mcf lease total
Last 12 months 2,662 · prior 12 1,859(+43%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Riata Energy, Inc.Aug 1998 → Nov 2006
- 2Sandridge Energy, Inc.Dec 2006 → May 2009
- 3Sandridge Expl. and Prod., LLCJun 2009 → Feb 2016
- 4Occidental W TX Overthrust, Inc.Mar 2016 → Dec 2021
- 5Longfellow Energy, LPJan 2022 → Jan 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 475660-99 | Drill | Riata Energy, Inc. | Apr 24, 1998 | Apr 24, 1998 | May 13, 1998 | 9,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Aug 19, 1998 | Longfellow G-10-170418 | Pinon (Overthrust) | Longfellow Energy LP | Producing | 5,506 |
Formation tops
As filed on W-2/G-1. Subsea from 4,186 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Base Cretaceous (marker)BASE CRETACEOUS | 2,480 | 1,706 |
| Dimple | 2,990 | 1,196 |
| Tesnus | 4,232 | -46 |
| Caballos Equivalent | 4,610 | -424 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 4,238 | 4,312 | Perforated |
| 5,340 | 5,440 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 9.625 | 1,390 | 12.25 | 570 S |
| 4.5 | 5,506 | 8.75 | 925 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 | Nov 25, 1998 | Aug 31, 1998 | Yes |
| 00 | Oct 28, 1998 | — | — |
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 42-371-36830 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-371-36830 → scanned completion filings
Log images filed since 2004 open from the RRC's log search for this well; none are loaded here for it. The University Lands library has no per-well link: then paste it into its 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/37136830, documented in the API reference.