TEXAS · WELLS · MARTIN COUNTY · HEREDIA 46 UNIT LEASE · API 42-317-34012 · DISTRICT 7B
Heredia 46 Unit #1
Martin County · Cedar Bush (Fusselman) field · Directional · Sidetrack
Heredia 46 Unit #1 (API 42-317-34012) is a plugged well in Martin County, plugged July 20, 2020, last operated by Diamondback E&P LLC.
The RRC has issued 2 drilling permits (amended 3 times) between 1995 and 1998, permitted to 11,000 ft.
It was permitted by Cobra Oil & Gas Corporation and has since transferred to Diamondback E&P LLC on the wellbore schedule.
Completion filings report 6 formation tops, including Rustler, Yates, U. Spraberry, Wolfcamp.
Its lease has reported 80.3K barrels of oil and 119K mcf of gas since September 1995, with no volume in the three years through April 2026.
Operator of record
Permitted by Cobra Oil & Gas Corporation; the EWA schedule now lists a different operator.
- Based in
- Midland, TX
- P-5 status
- Active – Extension (X)
- P-5 last filed
- May 4, 2026
- Permits on file
- 5,251
- Phone
- (432) 221-7400
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Diamondback E&P LLC |
| Production reports | Diamondback E&P LLCthrough Nov 2011 |
| Latest permit | Cobra Oil & Gas CorporationApr 16, 1998 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 11,000
- total depth, ft
- 5
- permits on file
- Apr 16, 1998
- last permit issued
- Sep 18, 1995
- completed
- 80.3K
- cumulative oil, bbl
- 119K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Sep 1995 THROUGH Nov 2011
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Sep 18, 1995
- Shut in
- —
- Plugged
- Jul 20, 2020
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 |
|---|---|---|---|---|---|---|
| Heredia 46 Unit O-10-34742 | Cedar Bush (Fusselman) | Diamondback E&P LLC | 1 | 80.3K | 119K | Sep 1995 – Nov 2011 |
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.
- 1Cobra Oil & Gas CorporationSep 1995 → Nov 2011
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 475393-98 | Recompletion | Cobra Oil & Gas Corporation | Aug 12, 1998 | Apr 16, 1998 | — | 11,000 |
| 475393-99 | Recompletion | Cobra Oil & Gas Corporation | Apr 16, 1998 | Apr 16, 1998 | — | 11,000 |
| 437363-97 | Drill · sidetrack | Cobra Oil & Gas Corporation | Sep 25, 1995 | Jun 28, 1995 | Jul 5, 1995 | 11,000 |
| 437363-98 | Drill · sidetrack | Cobra Oil & Gas Corporation | Aug 10, 1995 | Jun 28, 1995 | — | 11,000 |
| 437363-99 | Drill | Cobra Oil & Gas Corporation | Jun 28, 1995 | Jun 28, 1995 | — | 11,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Sep 18, 1995 | Heredia 46 Unit O-10-34742 | Cedar Bush (Fusselman) | Diamondback E&P LLC | Plugged | — |
Formation tops
As filed on W-2/G-1. Subsea from 2,559 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Rustler | 1,366 | 1,193 |
| Yates | 2,000 | 559 |
| U. Spraberry | 6,760 | -4,201 |
| WolfcampWOLFCAMP SHALE | 8,270 | -5,711 |
| PennsylvanianPENN SHALE | 9,195 | -6,636 |
| Canyon | 9,470 | -6,911 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 10,643 | 10,981 | Open hole |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 13.375 | 355 | 17.5 | 375 S |
| 9.625 | 3,599 | 12.25 | 1,200 S |
| 5.5 | 10,643 | 8.75 | 520 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 | Dec 22, 1995 | Sep 28, 1995 | Yes |
| 00 | Nov 30, 1995 | — | — |
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 42-317-34012 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-317-34012 → 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/31734012, documented in the API reference.