WELL · 42-135-38984 · DISTRICT 8
Dora Roberts Ranch Devonian Unit #509
Ector County · Dora Roberts (Devonian) field · Horizontal
Dora Roberts Ranch Devonian Unit #509 (API 42-135-38984) is a horizontal well in Ector County operated by Continental Resources Inc., completed March 30, 2006.
The RRC has issued 2 drilling permits between 2005 and 2011, permitted to 12,375 ft.
It was permitted by Oxy USA Wtp LP and has since transferred to Continental Resources Inc. on the wellbore schedule.
Completion filings report 12 formation tops, including Santa Rosa, Yates, Seven Rivers, Queen.
Its 2 leases have reported 8.26M barrels of oil and 39.5M mcf of gas since October 1995, last reporting in July 2026. The leases carry 245 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by OXY USA WTP LP; the EWA schedule now lists a different operator.
- Based in
- Oklahoma City, OK
- P-5 status
- Active (A)
- P-5 last filed
- Dec 3, 2025
- Permits on file
- 552
- Phone
- (405) 234-9000
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Continental Resources Inc. |
| Production reports | Continental Resources, Inc.through Apr 2026 |
| Latest permit | OXY USA WTP LPNov 19, 2011 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 12,375
- total depth, ft
- 2
- permits on file
- Nov 19, 2011
- last permit issued
- Mar 30, 2006
- completed
- 8.26M
- cumulative oil, bbl
- 39.5M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Oct 1995 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Mar 30, 2006
- 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 245 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Dora Roberts Ranch Unit O-10-34635 | Dora Roberts (Consolidated) | Continental Resources, Inc. | 244 | 8.26M | 39.5M | Oct 1995 – Jul 2026 |
| Dora Roberts Ranch Devonian Unit G-10-220358 | Dora Roberts (Devonian) | OXY USA WTP LP | 1 | 0 | 0 | Mar 2006 – Mar 2022 |
Oil, barrels lease total
Last 12 months 137,463 · prior 12 179,155(-23%)
Gas, mcf lease total
Last 12 months 633,491 · prior 12 872,157(-27%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1OXY USA Inc.Oct 1995 → Dec 2000
- 2OXY USA WTP LPJan 2001 → Oct 2023
- 3Continental Resources, Inc.Nov 2023 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 728446-99 | Recompletion | OXY USA WTP LP | Nov 16, 2011 | Nov 19, 2011 | Nov 16, 2011 | 12,360 |
| 610706-99 | Drill | OXY USA WTP LP | Dec 7, 2005 | Dec 9, 2005 | Dec 30, 2005 | 12,375 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — G-10-220358 | — | — | — | — |
| — | — O-10-34635 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 2,846 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Santa Rosa | 744 | 2,102 |
| Yates | 2,811 | 35 |
| Seven Rivers | 3,235 | -389 |
| Queen | 4,099 | -1,253 |
| Grayburg | 4,812 | -1,966 |
| San Andres | 5,040 | -2,194 |
| Glorieta | 5,728 | -2,882 |
| Clear ForkCLEARFORK | 7,072 | -4,226 |
| Spraberry | 7,829 | -4,983 |
| SpraberrySPRABERRY UPPER DEAN | 8,900 | -6,054 |
| Wolfcamp | 9,054 | -6,208 |
| Strawn | 9,994 | -7,148 |
| Devonian | 11,700 | -8,854 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 8,060 | 10,717 | Perforated |
| 12,144 | 15,899 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 13.875 | 300 | 17.5 | 375 S |
| 13.375 | 300 | 17.5 | 375 S |
| 9.625 | 5,505 | 12.25 | 1,800 S |
| 7 | 11,790 | 8.75 | 1,225 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 | Mar 2, 2022 | Feb 4, 2022 | — |
| 00 | Feb 22, 2007 | Aug 28, 2006 | Yes |
| 00 | Oct 25, 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 42-135-38984 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-135-38984 → 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/13538984, documented in the API reference.