WELL · 42-353-33683 · DISTRICT 7
Lake Trammel Unit #266
Nolan County · Lake Trammel W. (Canyon) field · Injection · Vertical
Lake Trammel Unit #266 (API 42-353-33683) is a well in Nolan County operated by Grayrock Energy II LLC, completed August 7, 2019 and listed as injection on the RRC schedule.
The RRC has issued one drilling permit, issued April 8, 2019, permitted to 6,000 ft.
It was permitted by Rover Petroleum Operating, LLC and has since transferred to Grayrock Energy II LLC on the wellbore schedule.
Completion filings report 11 formation tops, including Coleman Junction, Canyon, Breckenridge - Disposal, Elm Creek - Disposal.
Its lease has reported 3.85M barrels of oil and 2.09M mcf of gas since January 1993, last reporting in July 2026. The lease carries 203 wells, so these are lease totals, not this well alone.
It holds an active disposal or injection permit, with 175K barrels injected in the 12 months reported through November 2025; TexNet located 0 M2+ earthquakes within 10 km over the last two years.
Operator of record
Permitted by Rover Petroleum Operating, LLC; the EWA schedule now lists a different operator.
Fort Worth, TX · P-5 Y, filed Aug 4, 2025 · (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 | Rover Petroleum Operating, LLCApr 8, 2019 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 6,000
- total depth, ft
- 1
- permits on file
- Apr 8, 2019
- last permit issued
- Aug 7, 2019
- completed
- 3.85M
- cumulative oil, bbl
- 2.09M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Aug 7, 2019
- Shut in
- —
- Plugged
- —
Operator's P-5 on the schedule: Active
Surface location
32.321400, -100.452894
OpenStreetMap → · Google Maps →
Permit surface location from the RRC GIS record, in Nolan County.
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 – Jul 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%)
Chain 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 |
|---|---|---|---|---|---|---|
| 851882-99 | Drill | Rover Petroleum Operating, LLC | Apr 8, 2019 | Apr 8, 2019 | Jun 20, 2019 | 6,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-8-8712 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 2,461 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Coleman JunctionCOLEMAN JUNCTION - CORROSIVE; PO | 3,252 | -791 |
| CanyonCANYON SAND | 5,218 | -2,757 |
| Breckenridge - Disposal | — | — |
| Elm Creek - Disposal | — | — |
| Flippen Lime - Disposal | — | — |
| Flippen Sand - Disposal | — | — |
| King Sand - Disposal | — | — |
| Noodle Creek - Disposal | — | — |
| TannehillTANNEHILL - DISPOSAL | — | — |
| Wichita-AlbanyWICHITA ALBANY - DISPOSAL | — | — |
| WolfcampWOLFCAMP - DISPOSAL | — | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 5,276 | 5,427 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 539 | 12.25 | 310 S |
| 5.5 | 5,724 | 7.875 | 282 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. About these reports →
| Suffix | Filed | W-2 / G-1 date | Logs referenced |
|---|---|---|---|
| 00 | Nov 7, 2019 | Oct 3, 2019 | — |
| 00 | Oct 18, 2019 | Aug 28, 2019 | — |
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 42-353-33683 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-353-33683 → scanned completion filings
Log images are in archives with no per-well link: the RRC's Neubus archive (2004 onward). then paste it into their search.
Nearby wells and their tops
NEAREST 8 LOCATED WELLS WITH TOPS · WITHIN 16 KM
Draw a cross-section
This well's tops beside its 5 nearest neighbours, subsea-aligned so they line up regardless of surface terrain.
Lake Trammel Unit42-353-33670
0.3 KM · Rover Petroleum Operating, LLC · Section with this well →
| Coleman Junction | 3,252 | -792 |
| Breckenridge - Disposal | — | |
| Elm Creek - Disposal | — | |
| Flippen Lime - Disposal | — | |
| Flippen Sand - Disposal | — | |
| King Sand - Disposal | — | |
| Noodle Creek - Disposal | — | |
| Tannehill | — |
10 TOPS · FIRST 8
Lake Trammel Unit42-353-33671
1.4 KM · Rover Petroleum Operating, LLC · Section with this well →
| Coleman Junction | 3,085 | -703 |
| Breckenridge - Disposal | — | |
| Wolfcamp | — | |
| Wichita-Albany | — | |
| Tannehill | — | |
| Noodle Creek - Disposal | — | |
| King Sand - Disposal | — | |
| Flippen Sand - Disposal | — |
10 TOPS · FIRST 8
Lake Trammell Unit42-353-33291
2.0 KM · Rover Petroleum Operating, LLC · Section with this well →
| Coleman Junction | 3,080 | -738 |
| Elm Creek - Disposal | — | |
| Wolfcamp | — | |
| Breckenridge - Disposal | — | |
| Flippen Lime - Disposal | — | |
| Flippen Sand - Disposal | — | |
| King Sand - Disposal | — | |
| Noodle Creek - Disposal | — |
10 TOPS · FIRST 8
Lake Trammel Unit42-353-33684
2.5 KM · Rover Petroleum Operating, LLC · Section with this well →
| Coleman Junction | 4,224 | -1,917 |
| Wichita-Albany | — | |
| Wolfcamp | — | |
| Tannehill | — | |
| Noodle Creek - Disposal | — | |
| King Sand - Disposal | — | |
| Flippen Sand - Disposal | — | |
| Flippen Lime - Disposal | — |
10 TOPS · FIRST 8
Enexco42-353-33653
3.5 KM · Chisholm Operating, Inc. · Section with this well →
| Coleman Junction | 2,412 | -9 |
| Wolfcamp | — | |
| Breckenridge - Disposal | — | |
| Tannehill | — | |
| Wichita-Albany | — | |
| Elm Creek - Disposal | — | |
| Flippen Lime - Disposal | — | |
| Flippen Sand - Disposal | — |
10 TOPS · FIRST 8
Enexco42-353-33635
4.0 KM · Chisholm Operating, Inc. · Section with this well →
| Coleman Junction | 2,412 | -4 |
| Wolfcamp | — | |
| Breckenridge - Disposal | — | |
| Cambrian - Disposal | — | |
| Elm Creek - Disposal | — | |
| Flippen Lime - Disposal | — | |
| Flippen Sand - Disposal | — | |
| King Sand - Disposal | — |
11 TOPS · FIRST 8
Enexco42-353-33665
4.1 KM · Chisholm Operating, Inc. · Section with this well →
| Coleman Junction | 2,412 | -42 |
| Noodle Creek - Disposal | — | |
| King Sand - Disposal | — | |
| Flippen Sand - Disposal | — | |
| Flippen Lime - Disposal | — | |
| Elm Creek - Disposal | — | |
| Wichita-Albany | — | |
| Tannehill | — |
10 TOPS · FIRST 8
Enexco42-353-33618
4.3 KM · Chisholm Operating, Inc. · Section with this well →
| Coleman Junction | 2,412 | -62 |
| Breckenridge - Disposal | — | |
| Wolfcamp | — | |
| Wichita-Albany | — | |
| Tannehill | — | |
| Noodle Creek - Disposal | — | |
| King Sand - Disposal | — | |
| Flippen Sand - Disposal | — |
11 TOPS · FIRST 8
Beyond the permit record
RRC UIC permits · H-10 reported volumes
Injection
- 175K
- bbl, last 12 reported months
- 948K
- bbl, all reported
- Nov 2025
- reported through
| UIC | Kind | Status | Permitted bbl/d | Max psi | Zone ft |
|---|---|---|---|---|---|
| 000118752 | H-1 Injection | Active | 1,000 | 2,500 | 5,210–5,427 |
MONTHLY INJECTED, BBL · H-10 · LAST 24 REPORTED MONTHS
Last 12 months 175,449 · prior 12 143,543(+22%)
TexNet catalog via USGS
Seismicity near this well
- 0
- M2+ events within 10 km, last 2 years
- —
- largest
A proximity count, not an attribution. How to read 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/35333683, documented in the API reference.