WELL · 42-317-34123 · DISTRICT 8
Emily Unit #1
Martin County · Perriwinkle (Canyon) field · Vertical
Emily Unit #1 (API 42-317-34123) is a well in Martin County operated by Cobra Oil & Gas Corporation, completed November 9, 1997.
The RRC has issued 2 drilling permits between 1997 and 2012, permitted to 10,000 ft.
It was permitted by Brigham Oil & Gas, L.P. and has since transferred to Cobra Oil & Gas Corporation on the wellbore schedule.
Completion filings report 5 formation tops, including Clear Fork, Dean, Bse Of Dean, Pennsylvanian.
Its 2 leases have reported 129K barrels of oil and 273K mcf of gas since November 1997, last reporting in July 2026. The leases carry 2 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by Brigham Oil & Gas, L.P.; the EWA schedule now lists a different operator.
Wichita Falls, TX · P-5 Y, filed Dec 4, 2025 · 778 permits on file · (940) 720-2597
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Cobra Oil & Gas Corporation |
| Production reports | Diamondback E&P LLCthrough Jun 2019 |
| Latest permit | Brigham Oil & Gas, L.P.Feb 9, 2012 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 10,000
- total depth, ft
- 2
- permits on file
- Feb 9, 2012
- last permit issued
- Nov 9, 1997
- completed
- 129K
- cumulative oil, bbl
- 273K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Nov 1997 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Nov 9, 1997
- 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 2 leases this well is completed on; they carry 2 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Emily Unit O-10-43544 | Spraberry (Trend Area) | Diamondback E&P LLC | 1 | 23.1K | 14.8K | Apr 2011 – Jul 2026 |
| Emily Unit O-10-35560 | Perriwinkle (Canyon) | Cobra Oil & Gas Corporation | 1 | 106K | 258K | Nov 1997 – Feb 2014 |
No volumes reported on these leases in the last three years.
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Brigham Oil & Gas, L.P.Nov 1997 → Aug 2013
- 2Cobra Oil & Gas CorporationSep 2013 → May 2015
- 3Diamondback E&P LLCJun 2015 → Jun 2019
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 732854-99 | Recompletion | Brigham Oil & Gas, L.P. | Jan 31, 2012 | Feb 9, 2012 | Apr 3, 2011 | 9,861 |
| 467463-99 | Drill | Brigham Oil & Gas, L.P. | Sep 11, 1997 | Sep 11, 1997 | Sep 18, 1997 | 10,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-10-35560 | — | — | — | — |
| — | — O-10-43544 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 2,682 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Clear ForkBASE CLEARFORK | 6,585 | -3,903 |
| Clear ForkBASE OF CLEARFORK | 6,585 | -3,903 |
| DeanBASE DEAN | 8,427 | -5,745 |
| DeanBASE OF DEAN | 8,427 | -5,745 |
| Bse of Dean | 8,427 | -5,745 |
| PennsylvanianPENN SHALE | 9,230 | -6,548 |
| PennsylvanianPENN. SHALE | 9,230 | -6,548 |
| CanyonCANYON REEF | 9,435 | -6,753 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 7,300 | 7,560 | Perforated |
| 7,708 | 8,002 | Perforated |
| 8,108 | 8,370 | Perforated |
| 8,464 | 8,682 | Perforated |
| 8,768 | 9,028 | Perforated |
| 9,172 | 9,440 | Perforated |
| 9,523 | 9,537 | Perforated |
| 9,546 | 9,556 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 12.75 | 405 | 17.5 | 250 S |
| 8.625 | 3,580 | 11 | 895 S |
| 5.5 | 9,861 | 7.875 | 380 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 | Oct 24, 2023 | Sep 8, 2023 | — |
| 00 | Dec 18, 2013 | Dec 21, 2012 | — |
| 00 | Jan 7, 1998 | Dec 1, 1997 | Yes |
| 00 | Dec 23, 1997 | — | — |
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 42-317-34123 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-317-34123 → scanned completion filings
Log images are in archives with no per-well link: the RRC's Neubus archive (2004 onward) and the University Lands library. 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/31734123, documented in the API reference.