TEXAS · WELLS · MCMULLEN COUNTY · LARK RANCH LEASE · API 42-311-35570 · DISTRICT 01
Lark Ranch #C 4H
McMullen County · Eagleville (Eagle Ford-1) field · Shut In · Horizontal
Lark Ranch #C 4H (API 42-311-35570) is a horizontal well in Mcmullen County operated by Silver Hill Energy Operating LLC, completed February 8, 2014 and listed as shut in on the RRC schedule, shut in June 1, 2026.
The RRC has issued one drilling permit, issued July 11, 2013, permitted to 11,291 ft.
It was permitted by Statoil Texas Onshore Prop LLC and has since transferred to Silver Hill Energy Operating LLC on the wellbore schedule.
Completion filings report 3 formation tops, including Anacacho, Austin Chalk, Eagle Ford.
Its lease has reported 1.34M barrels of oil and 5.12M mcf of gas since September 2012, last reporting volume in April 2026. The lease carries 12 wells, so these are lease totals, not this well alone.
Operator of record
Silver Hill Energy Operating LLC
Permitted by Statoil Texas Onshore Prop LLC; the EWA schedule now lists a different operator.
- Based in
- Dallas, TX
- P-5 status
- Active (A)
- P-5 last filed
- Mar 19, 2026
- Permits on file
- 215
- Phone
- (214) 865-6555
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Silver Hill Energy Operating LLC |
| Production reports | Silver Hill Energy Operating LLCthrough Apr 2026 |
| Latest permit | Statoil Texas Onshore Prop LLCJul 11, 2013 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 11,291
- total depth, ft
- 1
- permits on file
- Jul 11, 2013
- last permit issued
- Feb 8, 2014
- completed
- 1.34M
- cumulative oil, bbl
- 5.12M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Sep 2012 THROUGH Apr 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Feb 8, 2014
- Shut in
- Jun 1, 2026
- 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; they carry 12 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Lark Ranch O-1-16551 | Eagleville (Eagle Ford-1) | Silver Hill Energy Operating LLC | 12 | 1.34M | 5.12M | Sep 2012 – Apr 2026 |
Oil, barrels lease total
Last 12 months 31,350 · prior 12 26,354(+19%)
Gas, mcf lease total
Last 12 months 87,891 · prior 12 173,027(-49%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Talisman Energy USA Inc.Sep 2012 → Jun 2013
- 2Statoil Texas Onshore Prop LLCJul 2013 → Apr 2018
- 3Equinor Texas Onshore Prop LLCMay 2018 → Nov 2019
- 4Repsol Oil & Gas USA, LLCDec 2019 → Mar 2026
- 5Silver Hill Energy Operating LLCApr 2026 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 765881-99 | Drill | Statoil Texas Onshore Prop LLC | Jul 2, 2013 | Jul 11, 2013 | Nov 5, 2013 | 11,500 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Feb 8, 2014 | Lark Ranch O-1-16551 | Eagleville (Eagle Ford-1) | Silver Hill Energy Operating LLC | Shut In · shut in Jun 1, 2026 | 11,291 |
Formation tops
As filed on W-2/G-1. Subsea from 266 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Anacacho | 10,973 | -10,707 |
| Austin Chalk | 11,291 | -11,025 |
| Eagle FordUPPER EAGLE FORD | 11,321 | -11,055 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 11,783 | 18,000 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 13.375 | 1,479 | 17.5 | 775 S |
| 9.625 | 7,290 | 12.25 | 1,325 S |
| 5.5 | 18,338 | 8.5 | 2,535 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 9, 2014 | Apr 2, 2014 | Yes |
| 00 | Mar 6, 2014 | Dec 19, 2013 | Yes |
Well logs
1 log loaded from the RRC's log index, the latest received Oct 3, 2016. 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 Anacacho, Austin Chalk, Eagle Ford | TIFF | 7,251 to 18,307 | Oct 3, 2016run Sep 20, 2013 | 1.10 |
"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 42-311-35570 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-311-35570 → 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/31135570, documented in the API reference.