TEXAS · WELLS · NOLAN COUNTY · LAKE TRAMMEL UNIT LEASE · API 42-353-32957 · DISTRICT 6E
Lake Trammel Unit #131
Nolan County · Lake Trammel W. (Canyon) field · Producing · Vertical
Lake Trammel Unit #131 (API 42-353-32957) is a well in Nolan County operated by Grayrock Energy II LLC, completed October 18, 2007 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit, issued April 20, 2007, permitted to 5,400 ft.
It was permitted by L.C.S. Production Company and has since transferred to Grayrock Energy II LLC on the wellbore schedule.
Completion filings report one formation top, including Canyon.
Its lease has reported 3.85M barrels of oil and 2.09M mcf of gas since January 1993, last reporting volume in April 2026. The lease carries 203 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by L.C.S. Production Company; the EWA schedule now lists a different operator.
- Based in
- Fort Worth, TX
- P-5 status
- Active (A)
- P-5 last filed
- Oct 16, 2025
- Phone
- (214) 234-9115
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Grayrock Energy II LLC |
| Production reports | Grayrock Energy II, LLCthrough Apr 2026 |
| Latest permit | L.C.S. Production CompanyApr 20, 2007 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 5,400
- total depth, ft
- 1
- permits on file
- Apr 20, 2007
- last permit issued
- Oct 18, 2007
- completed
- 3.85M
- cumulative oil, bbl
- 2.09M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Apr 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Oct 18, 2007
- Shut in
- —
- Plugged
- —
Operator's P-5 on the schedule: Active – Extension (X)
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.
Wells nearby
Every well with a location on file around this well, in any state, nearest first.
Texas locations come from drilling permits, so most older Texas wells have none and are not listed.
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 203 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Lake Trammel Unit O-8-8712 | Lake Trammel, W. (Canyon) | Grayrock Energy II, LLC | 203 | 3.85M | 2.09M | Jan 1993 – Apr 2026 |
Oil, barrels lease total
Last 12 months 76,226 · prior 12 81,636(-7%)
Gas, mcf lease total
Last 12 months 16,928 · prior 12 34,078(-50%)
Wells named Lake Trammel Unit
Grayrock Energy II LLC's other wells filed under this lease name in Nolan County, newest permit first. The RRC gives a gas well its own lease number, so the name is what joins the wells of a unit.
Loading the lease's wellsChain of custody
Every operator that reported production on this well's lease, in order.
- 1Eldorado Operating Co.Jan 1993 → Oct 1995
- 2Brothers Operating Company Inc.Nov 1995 → Apr 2003
- 3Shenandoah Petroleum CorporationMay 2003 → Jan 2004
- 4L.C.S. Production CompanyFeb 2004 → Apr 2009
- 5Plantation Operating, LLCMay 2009 → Nov 2011
- 6Merit Energy CompanyDec 2011 → May 2017
- 7Rover Petroleum Operating, LLCJun 2017 → Dec 2023
- 8Grayrock Energy II, LLCJan 2024 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 635991-99 | Drill | L.C.S. Production Company | Mar 27, 2007 | Apr 20, 2007 | Sep 20, 2007 | 6,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Oct 18, 2007 | Lake Trammel Unit O-8-8712 | Lake Trammel W. (Canyon) | Grayrock Energy II LLC | Producing | 5,400 |
Formation tops
As filed on W-2/G-1. Subsea from 2,334 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| CanyonCANYON SAND | 5,182 | -2,848 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 5,188 | 5,203 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 340 | 12.25 | 330 S |
| 5.5 | 5,397 | 7.875 | 200 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 | Jul 16, 2008 | Nov 30, 2007 | Yes |
| 00 | Jun 24, 2008 | — | — |
Well logs
2 logs loaded from the RRC's log index, the latest received Jan 17, 2011. Density, Neutron, 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 |
|---|---|---|---|---|
| NEUTRON/DENSITY POROSITYSpans Canyon | TIFF | 3,774 to 5,399 | Jan 17, 2011run Sep 28, 2007 | 1.26 |
| RESISTIVITYSpans Canyon | TIFF | 330 to 5,399 | Jan 17, 2011run Sep 28, 2007 | 2.62 |
"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 42-353-32957 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-353-32957 → 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/35332957, documented in the API reference.