TEXAS · WELLS · GONZALES COUNTY · CHERRY-BILSKY UNIT LEASE · API 42-177-32390 · DISTRICT 01
Cherry-Bilsky Unit #1H
Gonzales County · Eagleville (Eagle Ford-1) field · Producing · Horizontal
Cherry-Bilsky Unit #1H (API 42-177-32390) is a horizontal well in Gonzales County operated by Ensign Natural Resources II LLC, completed February 10, 2017 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit (amended twice), issued November 1, 2011, permitted to 11,370 ft.
It was permitted by Marathon Oil EF LLC and has since transferred to Ensign Natural Resources II LLC on the wellbore schedule.
Completion filings report 4 formation tops, including Anacacho, Ancacho, Austin Chalk, Eagle Ford.
Its lease has reported 157K barrels of oil and 194K mcf of gas since February 2012, last reporting volume in February 2026.
Operator of record
Ensign Natural Resources II LLC
Permitted by Marathon Oil EF LLC; the EWA schedule now lists a different operator.
- Based in
- Houston, TX
- P-5 status
- Active (A)
- P-5 last filed
- Jun 29, 2026
- Permits on file
- 13
- Phone
- (346) 809-4062
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Ensign Natural Resources II LLC |
| Production reports | Marathon Oil EF LLCthrough Feb 2026 |
| Latest permit | Marathon Oil EF LLCNov 1, 2011 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 11,370
- total depth, ft
- 3
- permits on file
- Nov 1, 2011
- last permit issued
- Feb 10, 2017
- completed
- 157K
- cumulative oil, bbl
- 194K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Feb 2012 THROUGH Feb 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Feb 10, 2017
- 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 |
|---|---|---|---|---|---|---|
| Cherry-Bilsky Unit O-1-15737 | Eagleville (Eagle Ford-1) | Marathon Oil EF LLC | 1 | 157K | 194K | Feb 2012 – Feb 2026 |
Oil, barrels lease total
Last 12 months 4,259 · prior 12 5,033(-15%)
Gas, mcf lease total
Last 12 months 1,912 · prior 12 2,581(-26%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Marathon Oil EF LLCFeb 2012 → Feb 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 726989-97 | Drill | Marathon Oil EF LLC | Jan 20, 2012 | Nov 1, 2011 | Dec 9, 2011 | 16,100 |
| 726989-98 | Drill | Marathon Oil EF LLC | Nov 22, 2011 | Nov 1, 2011 | — | 13,500 |
| 726989-99 | Drill | Hilcorp Energy Company | Oct 26, 2011 | Nov 1, 2011 | Dec 9, 2011 | 13,500 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Feb 10, 2017 | Cherry-Bilsky Unit O-1-15737 | Eagleville (Eagle Ford-1) | Ensign Natural Resources II LLC | Producing | 11,370 |
Formation tops
As filed on W-2/G-1. Subsea from 277 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Anacacho | 10,438 | -10,161 |
| Ancacho | 10,438 | -10,161 |
| Austin Chalk | 10,552 | -10,275 |
| Eagle Ford | 11,223 | -10,946 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 11,687 | 15,879 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 10.75 | 2,917 | 13.5 | 880 S |
| 10.75 | 2,918 | 13.5 | 880 S |
| 10.75 | 4,930 | 13.5 | 770 S |
| 5.5 | 16,100 | 8.75 | 1,805 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 | Sep 16, 2024 | Aug 26, 2024 | — |
| 00 | May 1, 2017 | Apr 25, 2017 | — |
| 00 | Jun 29, 2012 | May 30, 2012 | — |
| 00 | May 3, 2012 | Mar 4, 2012 | Yes |
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 42-177-32390 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-177-32390 → scanned completion filings
Log images filed since 2004 open from the RRC's log search for this well; none are loaded here 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/17732390, documented in the API reference.