TEXAS · WELLS · PANOLA COUNTY · CRNKO-BIGGS SL LEASE · API 42-365-37909 · DISTRICT 06
Crnko-Biggs SL #4H
Panola County · Carthage SE (CV) field · Producing · Horizontal
Crnko-Biggs SL #4H (API 42-365-37909) is a horizontal well in Panola County operated by Tgnr East Texas II LLC, completed March 26, 2015 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit, issued June 13, 2012, permitted to 9,535 ft.
It was permitted by Samson Lone Star, LLC and has since transferred to Tgnr East Texas II LLC on the wellbore schedule.
Completion filings report 5 formation tops, including Massive Anhydrite (marker), Pettie, Pettit, Travis Peak.
Its lease has reported 81.8K barrels of oil and 8.18M mcf of gas since September 2012, last reporting volume in March 2026.
Operator of record
Permitted by Samson Lone Star, LLC; the EWA schedule now lists a different operator.
- Based in
- Houston, TX
- P-5 status
- Active (A)
- P-5 last filed
- Mar 18, 2026
- Permits on file
- 162
- Phone
- (346) 308-2250
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | TGNR East Texas II LLC |
| Production reports | TGNR East Texas II LLCthrough Mar 2026 |
| Latest permit | Samson Lone Star, LLCJun 13, 2012 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 9,535
- total depth, ft
- 1
- permits on file
- Jun 13, 2012
- last permit issued
- Mar 26, 2015
- completed
- 81.8K
- cumulative oil, bbl
- 8.18M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Dec 2012 THROUGH Mar 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Mar 26, 2015
- 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 |
|---|---|---|---|---|---|---|
| Crnko-Biggs SL G-6-267701 | Carthage, SE (CV) | TGNR East Texas II LLC | 1 | 81.8K | 8.18M | Sep 2012 – Mar 2026 |
Gas, mcf lease total
Last 12 months 181,068 · prior 12 231,971(-22%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Samson Lone Star, LLCDec 2012 → Sep 2017
- 2Rockcliff Energy Operating LLCOct 2017 → Nov 2023
- 3TGNR East Texas II LLCDec 2023 → Mar 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 741379-99 | Drill | Samson Lone Star, LLC | May 23, 2012 | Jun 13, 2012 | Aug 21, 2012 | 9,485 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Mar 26, 2015 | Crnko-Biggs SL G-6-267701 | Carthage SE (CV) | TGNR East Texas II LLC | Producing | 9,535 |
Formation tops
As filed on W-2/G-1. Subsea from 191 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Massive Anhydrite (marker)MASSIVE ANHYDRITE | 4,736 | -4,545 |
| Pettie | 5,758 | -5,567 |
| Pettit | 5,758 | -5,567 |
| Travis Peak | 6,234 | -6,043 |
| Cotton Valley | 8,423 | -8,232 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 9,919 | 14,404 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 9.625 | 1,495 | 12.25 | 720 S |
| 7 | 9,904 | 8.75 | 740 S |
| 4.5 | 14,465 | 6.125 | 530 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 | Jun 25, 2015 | May 12, 2015 | — |
| 00 | Jul 26, 2013 | Jan 30, 2013 | — |
| 00 | May 16, 2013 | Dec 21, 2012 | Yes |
Well logs
1 log loaded from the RRC's log index, the latest received Sep 15, 2015. 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 Cotton Valley | TIFF | 8,860 to 14,413 | Sep 15, 2015run Sep 12, 2012 | 2.99 |
"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 42-365-37909 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-365-37909 → 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/36537909, documented in the API reference.