TEXAS · WELLS · WHEELER COUNTY · API 42-483-31878 · DISTRICT 08
Blonstein Estate #206
Wheeler County · Mills Ranch (Granite Wash Cons.) field · Shut In · Vertical
Blonstein Estate #206 (API 42-483-31878) is a well in Wheeler County operated by Unbridled Resources LLC, completed March 23, 2020 and listed as shut in on the RRC schedule, shut in September 1, 2020.
The RRC has issued one drilling permit, issued May 24, 2005, permitted to 16,300 ft.
It was permitted by Chesapeake Operating, Inc. and has since transferred to Unbridled Resources LLC on the wellbore schedule.
Its 3 leases have reported 70.6K barrels of oil and 193K mcf of gas since August 2005, last reporting in July 2026. The leases carry 3 wells, so these are lease totals, not this well alone.
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 | 4P Energy Texas, LLCthrough Apr 2020 |
| Latest permit | Chesapeake Operating, Inc.May 24, 2005 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 16,300
- total depth, ft
- 1
- permits on file
- May 24, 2005
- last permit issued
- Mar 23, 2020
- completed
- 70.6K
- cumulative oil, bbl
- 193K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Aug 2005 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Mar 23, 2020
- Shut in
- Sep 1, 2020
- 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 3 leases this well is completed on; they carry 3 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Blonstein Estate O-14-9246 | Mills Ranch (Granite Wash Cons.) | Unbridled Resources, LLC | 1 | 12.4K | 52.8K | Mar 2013 – Jul 2026 |
| Blonstein Estate O-14-7800 | Mills Ranch (Granite Wash) | Chesapeake Operating, L.L.C. | 1 | 58.2K | 63.3K | Oct 2007 – May 2015 |
| Blonstein Estate G-14-216759 | Mills Ranch (Granite Wash) | Chesapeake Operating, Inc. | 1 | 0 | 77.2K | Aug 2005 – Feb 2008 |
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.
- 1Chesapeake Operating, Inc.Aug 2005 → Feb 2013
- 2Chesapeake Operating, L.L.C.Mar 2013 → Jun 2016
- 34P Energy Texas, LLCJul 2016 → Apr 2020
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 600946-99 | Drill | Chesapeake Operating, Inc. | May 19, 2005 | May 24, 2005 | Jun 2, 2005 | 18,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Mar 23, 2020 | Blonstein Estate O-14-9246 | Mills Ranch (Granite Wash Cons.) | Unbridled Resources LLC | Shut In · shut in Sep 1, 2020 | 16,300 |
| Oct 11, 2007 | Blonstein Estate O-14-7800 | Mills Ranch (Granite Wash) | Chesapeake Operating L.L.C. | Not on Schedule | — |
| Aug 13, 2005 | Blonstein Estate G-14-216759 | Mills Ranch (Granite Wash) | Chesapeake Operating Inc. | Not on Schedule | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 10,312 | 11,066 | Perforated |
| 12,533 | 16,154 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 13.375 | 300 | 17.5 | 670 S |
| 9.625 | 3,413 | 12.25 | 620 S |
| 4.5 | 16,300 | 8.75 | 1,050 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 | May 12, 2020 | Apr 27, 2020 | — |
| 00 | Apr 13, 2015 | Oct 29, 2007 | — |
| 00 | Jan 15, 2008 | Oct 29, 2007 | — |
| 00 | Jan 8, 2008 | — | — |
| 00 | Dec 12, 2007 | Oct 4, 2007 | — |
| 00 | Oct 25, 2006 | Mar 15, 2006 | Yes |
| 00 | Jul 6, 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 42-483-31878 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-483-31878 → scanned completion filings
Log images are in archives with no per-well link: the RRC's Neubus archive (2004 onward). 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/48331878, documented in the API reference.