TEXAS · WELLS · NACOGDOCHES COUNTY · DENNIS LEASE · API 42-347-33128 · DISTRICT 06
Dennis #1
Nacogdoches County · Martinsville (Travis Peak) field · Producing · Vertical
Dennis #1 (API 42-347-33128) is a well in Nacogdoches County operated by Sydri Operating LLC, completed April 3, 2010 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit, issued December 30, 2009, permitted to 11,510 ft.
It was permitted by Eog Resources, Inc. and has since transferred to Sydri Operating LLC on the wellbore schedule.
Completion filings report 8 formation tops, including Saratoga, B.Austin Chalk, Washita-Fredericksburg, Anahydrite.
Its lease has reported 21.4K barrels of oil and 1.89M mcf of gas since April 2010, last reporting volume in April 2026.
Operator of record
Permitted by EOG Resources, Inc.; the EWA schedule now lists a different operator.
- Based in
- Dallas, TX
- P-5 status
- Active (A)
- P-5 last filed
- Mar 11, 2026
- Permits on file
- 46
- Phone
- (214) 373-8626
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Sydri Operating LLC |
| Production reports | Sydri Operating, LLCthrough Apr 2026 |
| Latest permit | EOG Resources, Inc.Dec 30, 2009 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 11,510
- total depth, ft
- 1
- permits on file
- Dec 30, 2009
- last permit issued
- Apr 3, 2010
- completed
- 21.4K
- cumulative oil, bbl
- 1.89M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Apr 2010 THROUGH Apr 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Apr 3, 2010
- 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 |
|---|---|---|---|---|---|---|
| Dennis G-6-256423 | Martinsville (Travis Peak) | Sydri Operating, LLC | 1 | 21.4K | 1.89M | Apr 2010 – Apr 2026 |
Gas, mcf lease total
Last 12 months 35,690 · prior 12 39,377(-9%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1EOG Resources, Inc.Apr 2010 → May 2014
- 2Tanos Exploration II, LLCJun 2014 → Jun 2018
- 3Titan Rock E&P, LLCJul 2018 → Mar 2023
- 4Sydri Operating, LLCApr 2023 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 689119-99 | Drill | EOG Resources, Inc. | Dec 29, 2009 | Dec 30, 2009 | Feb 5, 2010 | 12,500 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Apr 3, 2010 | Dennis G-6-256423 | Martinsville (Travis Peak) | Sydri Operating LLC | Producing | 11,510 |
Formation tops
As filed on W-2/G-1. Subsea from 507 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Saratoga | 3,550 | -3,043 |
| B.austin Chalk | 4,960 | -4,453 |
| Washita-Fredericksburg | 5,085 | -4,578 |
| Anahydrite | 7,290 | -6,783 |
| Rodessa | 7,475 | -6,968 |
| James LimeJAMES | 7,990 | -7,483 |
| SligoSLIGO/PETTIT | 8,360 | -7,853 |
| Travis Peak | 9,000 | -8,493 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 9,030 | 10,393 | Perforated |
| 10,422 | 10,620 | Perforated |
| 10,690 | 11,030 | Perforated |
| 11,050 | 11,352 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 10.75 | 2,750 | 13.5 | 1,148 S |
| 5.5 | 11,509 | 8.75 | 1,800 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 30, 2010 | May 17, 2010 | Yes |
| 00 | Jul 5, 2010 | — | — |
Well logs
1 log loaded from the RRC's log index, the latest received Feb 11, 2013. Neutron. 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 POROSITYSpans Saratoga, B.Austin Chalk, Washita-Fredericksburg, Anahydrite, Rodessa, James Lime, Sligo, Travis Peak | TIFF | 2,740 to 11,511 | Feb 11, 2013run Feb 19, 2010 | 14.2 |
"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 42-347-33128 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-347-33128 → 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/34733128, documented in the API reference.