TEXAS · WELLS · WHEELER COUNTY · DOBSON RANCH 40 SL LEASE · API 42-483-33207 · DISTRICT 08
Dobson Ranch 40 SL #1H
Wheeler County · Stiles Ranch (Granite Wash Cons) field · Not Eligible for Allowable · Horizontal
Dobson Ranch 40 SL #1H (API 42-483-33207) is a horizontal well in Wheeler County operated by Unbridled Resources LLC, completed July 1, 2012 and listed as not eligible for allowable on the RRC schedule, shut in August 1, 2012.
The RRC has issued one drilling permit (amended 4 times), issued April 6, 2011, permitted to 12,701 ft.
It was permitted by Linn Operating, Inc. and has since transferred to Unbridled Resources LLC on the wellbore schedule.
Completion filings report 10 formation tops, including B/Heebner - T/Douglas, Tonkawa, Avant Ls, Kansas City.
Its lease has reported 884 barrels of oil and 32.1K mcf of gas since June 2012, with no volume in the three years through April 2026.
Operator of record
Permitted by Linn Operating, Inc.; the EWA schedule now lists a different operator.
- Based in
- Oklahoma City, OK
- P-5 status
- Active (A)
- P-5 last filed
- Dec 17, 2025
- Permits on file
- 6
- Phone
- (318) 751-3917
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Unbridled Resources LLC |
| Production reports | Unbridled Resources, LLCthrough Jun 2012 |
| Latest permit | Linn Operating, Inc.Apr 6, 2011 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 12,701
- total depth, ft
- 5
- permits on file
- Apr 6, 2011
- last permit issued
- Jul 1, 2012
- completed
- 884
- cumulative oil, bbl
- 32.1K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jun 2012 THROUGH Jun 2012
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Jul 1, 2012
- Shut in
- Aug 1, 2012
- 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 |
|---|---|---|---|---|---|---|
| Dobson Ranch 40 SL G-14-266529 | Stiles Ranch (Granite Wash Cons) | Unbridled Resources, LLC | 1 | 884 | 32.1K | Jun 2012 – Jun 2012 |
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.
- 1Linn Operating, Inc.Jun 2012 → Jun 2012
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 712879-95 | Drill | Linn Operating, Inc. | Apr 23, 2012 | Apr 6, 2011 | Apr 27, 2012 | 13,247 |
| 712879-96 | Drill | Linn Operating, Inc. | Feb 6, 2012 | Apr 6, 2011 | Apr 26, 2012 | 13,247 |
| 712879-97 | Drill | Linn Operating, Inc. | Jan 9, 2012 | Apr 6, 2011 | Apr 26, 2012 | 13,247 |
| 712879-98 | Drill | Linn Operating, Inc. | Dec 2, 2011 | Apr 6, 2011 | Apr 26, 2012 | 13,247 |
| 712879-99 | Drill | Linn Operating, Inc. | Mar 25, 2011 | Apr 6, 2011 | Apr 26, 2012 | 13,247 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Jul 1, 2012 | Dobson Ranch 40 SL G-14-266529 | Stiles Ranch (Granite Wash Cons) | Unbridled Resources LLC | Not Eligible for Allowable · shut in Aug 1, 2012 | 12,701 |
Formation tops
As filed on W-2/G-1. Subsea from 2,402 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| B/Heebner - T/Douglas | 9,224 | -6,822 |
| Tonkawa | 10,086 | -7,684 |
| Avant LS | 10,914 | -8,512 |
| Kansas CityKANSAS CITY 'A' | 11,313 | -8,911 |
| Cleveland | 11,830 | -9,428 |
| Marmaton | 12,009 | -9,607 |
| Oswego | 12,088 | -9,686 |
| Cherokee Marker | 12,543 | -10,141 |
| Alvin GW | 12,626 | -10,224 |
| Carr GW | 12,751 | -10,349 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 13,226 | 17,522 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 13.375 | 440 | 17.5 | 550 S |
| 9.625 | 6,770 | 12.25 | 740 S |
| 5.5 | 17,675 | 8.75 | 1,800 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 | Mar 12, 2013 | Sep 5, 2012 | Yes |
Well logs
1 log loaded from the RRC's log index, the latest received Jun 11, 2015. Density, Neutron. These are the logs loaded into Petrora from the Railroad Commission's inventories, not necessarily every log run on the well. The RRC holds the files; each opens from its log search for the well. The kind is the RRC's description of the log; the interval is the one filed for it.
Open the RRC's log search for this well ↗| Logas described | Files | Intervalft, as filed | Datereceived | SizeMB |
|---|---|---|---|---|
| NEUTRON/DENSITY POROSITYSpans B/Heebner - T/Douglas, Tonkawa, Avant Ls, Kansas City, Cleveland, Marmaton, Oswego, Cherokee Marker, Alvin Gw, Carr Gw | TIFF | 8,500 to 17,497 | Jun 11, 2015run Jun 10, 2012 | 5.48 |
"Spans" is by this well's own filed formation tops: a formation runs from its top to the next deeper top filed, and the deepest runs to the bottom of the log. Depths are measured along the wellbore, so on a horizontal the lateral counts in the formation it was landed in.
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 42-483-33207 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-483-33207 → scanned completion filings
The logs loaded for this well are under Well logs, with the RRC's log search for it.
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/48333207, documented in the API reference.