TEXAS · WELLS · WHEELER COUNTY · DAVIDSON, MILDRED LEASE · API 42-483-30011 · DISTRICT 08
Davidson Mildred #1036R
Wheeler County · Mills Ranch (Lister Atoka Wash) field · Producing · Vertical
Davidson Mildred #1036R (API 42-483-30011) is a well in Wheeler County operated by Unbridled Resources LLC, completed July 15, 2005 and listed as producing on the RRC schedule.
The RRC has issued 2 drilling permits (amended once) between 1980 and 2005, permitted to 21,640 ft.
It was permitted by Chesapeake Operating, Inc. and has since transferred to Unbridled Resources LLC on the wellbore schedule.
Completion filings report 4 formation tops, including B. Heebner, Tonkawa, Missourian, Des Moines.
Its lease has reported 35.3K barrels of oil and 1.93M mcf of gas since July 2005, last reporting volume in April 2026.
Operator of record
Permitted by Chesapeake 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 Apr 2026 |
| Latest permit | Chesapeake Operating, Inc.May 2, 2005 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 21,640
- total depth, ft
- 3
- permits on file
- May 2, 2005
- last permit issued
- Jul 15, 2005
- completed
- 35.3K
- cumulative oil, bbl
- 1.93M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jul 2005 THROUGH Apr 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Jul 15, 2005
- 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 |
|---|---|---|---|---|---|---|
| Davidson, Mildred G-14-213557 | Mills Ranch (Lister Atoka Wash) | Unbridled Resources, LLC | 1 | 35.3K | 1.93M | Jul 2005 – Apr 2026 |
Gas, mcf lease total
Last 12 months 15,037 · prior 12 16,827(-11%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Chesapeake Operating, Inc.Jul 2005 → Oct 2014
- 2Chesapeake Operating, L.L.C.Nov 2014 → Jun 2016
- 34P Energy Texas, LLCJul 2016 → Oct 2020
- 4Unbridled Resources, LLCNov 2020 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 561066-98 | Reenter | Chesapeake Operating, Inc. | May 19, 2005 | May 2, 2005 | — | 17,000 |
| 561066-99 | Drill | Chesapeake Operating, Inc. | Apr 26, 2005 | May 2, 2005 | — | 17,000 |
| 71129-99 | Recompletion | Chevron U. S. A. Inc. | Jan 29, 1980 | Jan 29, 1980 | — | 21,640 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Jul 15, 2005 | Davidson Mildred G-14-213557 | Mills Ranch (Lister Atoka Wash) | Unbridled Resources LLC | Producing | 21,640 |
| — | Davidson Mildred G-14-50836 | Mills Ranch (Morrow) | Chevron U. S. A. Inc. | Plugged | — |
Formation tops
As filed on W-2/G-1. Subsea from 2,165 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| B. Heebner | 9,100 | -6,935 |
| Tonkawa | 9,851 | -7,686 |
| Missourian | 10,321 | -8,156 |
| Des Moines | 12,534 | -10,369 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 10,778 | 11,923 | Perforated |
| 14,442 | 15,429 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 20 | 377 | 26 | 900 S |
| 4.5 | 1,525 | 6 | — |
| 13.375 | 4,390 | 17.5 | — |
| 7 | 4,910 | 8.5 | — |
| 4.5 | 15,563 | 9.625 | 1,450 S |
| 9.625 | 16,000 | 12.25 | — |
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 | May 4, 2006 | Jan 19, 2006 | Yes |
| 00 | Feb 1, 2006 | — | — |
| 00 | Jan 12, 1984 | — | — |
Well logs
1 log loaded from the RRC's log index, the latest received Sep 16, 2008. Cased hole. 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 |
|---|---|---|---|---|
| SURVEYS CASED HOLESpans Des Moines | TIFF | 12,800 to 15,881 | Sep 16, 2008run May 16, 2005 | 4.32 |
"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 42-483-30011 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-483-30011 → 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/48330011, documented in the API reference.