TEXAS · WELLS · HEMPHILL COUNTY · THORNE 18B LEASE · API 42-211-34040 · DISTRICT 08
Thorne 18B #4
Hemphill County · Hemphill (Granite Wash.) field · Producing · Vertical
Thorne 18b #4 (API 42-211-34040) is a well in Hemphill County operated by Bce-Mach II LLC, completed December 19, 2007 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit, issued October 26, 2007, permitted to 11,895 ft.
It was permitted by Linn Operating, Inc. and has since transferred to Bce-Mach II LLC on the wellbore schedule.
Completion filings report 6 formation tops, including T/Brown Dolomite, T/Tonkawa, T/Cleveland Mkr., T/Caldwell Granite Wash.
Its lease has reported 2.31K barrels of oil and 171K mcf of gas since December 2007, last reporting volume in 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
- Aug 14, 2025
- Phone
- (405) 252-8100
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Bce-Mach II LLC |
| Production reports | Bce-Mach II LLCthrough Apr 2026 |
| Latest permit | Linn Operating, Inc.Oct 26, 2007 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 11,895
- total depth, ft
- 1
- permits on file
- Oct 26, 2007
- last permit issued
- Dec 19, 2007
- completed
- 2.31K
- cumulative oil, bbl
- 171K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Dec 2007 THROUGH Apr 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Dec 19, 2007
- 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 |
|---|---|---|---|---|---|---|
| Thorne 18B G-14-234289 | Hemphill (Granite Wash.) | Bce-Mach II LLC | 1 | 2.31K | 171K | Dec 2007 – Apr 2026 |
Gas, mcf lease total
Last 12 months 715 · prior 12 1,335(-46%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Linn Operating, Inc.Dec 2007 → Dec 2014
- 2Enervest Operating, L.L.C.Jan 2015 → Aug 2019
- 3Bce-Mach II LLCSep 2019 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 647988-99 | Drill | Linn Operating, Inc. | Oct 17, 2007 | Oct 26, 2007 | Oct 30, 2007 | 12,550 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Dec 19, 2007 | Thorne 18B G-14-234289 | Hemphill (Granite Wash.) | Bce-Mach II LLC | Producing | 11,895 |
Formation tops
As filed on W-2/G-1. Subsea from 2,805 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| T/Brown Dolomite | 4,408 | -1,603 |
| T/Tonkawa | 8,257 | -5,452 |
| T/Cleveland Mkr. | 9,414 | -6,609 |
| T/Caldwell Granite Wash | 10,076 | -7,271 |
| T/Granite Wash D Shale | 10,880 | -8,075 |
| T/Atoka Wash | 11,254 | -8,449 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 3 | — | Perforated |
| 10,346 | 11,738 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 9.625 | 3,014 | 12.25 | 1,750 S |
| 5.5 | 11,889 | 7.875 | 400 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 | May 6, 2008 | Feb 25, 2008 | Yes |
| 00 | Apr 10, 2008 | — | — |
Well logs
1 log loaded from the RRC's log index, the latest received Oct 3, 2008. Resistivity. 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 |
|---|---|---|---|---|
| RESISTIVITYSpans T/Brown Dolomite, T/Tonkawa, T/Cleveland Mkr., T/Caldwell Granite Wash, T/Granite Wash D Shale, T/Atoka Wash | TIFF | 3,014 to 11,888 | Oct 3, 2008run Nov 14, 2007 | 8.49 |
"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 42-211-34040 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-211-34040 → 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/21134040, documented in the API reference.