TEXAS · WELLS · NACOGDOCHES COUNTY · MAST GAS UNIT LEASE · API 42-347-32322 · DISTRICT 06
Mast Gas Unit #1H
Nacogdoches County · Kendrick (James) field · Producing · Horizontal
Mast Gas Unit #1H (API 42-347-32322) is a horizontal well in Nacogdoches County operated by Sydri Operating LLC, completed June 28, 2007 and listed as producing on the RRC schedule, shut in January 1, 2026.
The RRC has issued one drilling permit (amended once), issued July 3, 2006, permitted to 7,809 ft.
It was permitted by Petrohawk Operating Company and has since transferred to Sydri Operating LLC on the wellbore schedule.
Completion filings report 5 formation tops, including Austin Chalk, Paluxy, Massive Anhydrite (marker), Rodessa.
Its lease has reported 419 barrels of oil and 403K mcf of gas since May 2007, last reporting volume in December 2025.
Operator of record
Permitted by Petrohawk Operating Company; 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 Dec 2025 |
| Latest permit | Petrohawk Operating CompanyJul 3, 2006 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 7,809
- total depth, ft
- 2
- permits on file
- Jul 3, 2006
- last permit issued
- Jun 28, 2007
- completed
- 419
- cumulative oil, bbl
- 403K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · May 2007 THROUGH Dec 2025
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Jun 28, 2007
- Shut in
- Jan 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; this well is the only one on it.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Mast Gas Unit G-6-234311 | Kendrick (James) | Sydri Operating, LLC | 1 | 419 | 403K | May 2007 – Dec 2025 |
Gas, mcf lease total
Last 12 months 4,314 · prior 12 11,539(-63%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Petrohawk Operating CompanyMay 2007 → Jul 2013
- 2BHP Billiton Pet(txla OP) CoAug 2013 → Jan 2015
- 3Tanos Exploration II, LLCFeb 2015 → Jun 2018
- 4Titan Rock E&P, LLCJul 2018 → Mar 2023
- 5Sydri Operating, LLCApr 2023 → Dec 2025
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 621904-98 | Drill | Petrohawk Operating Company | Nov 9, 2007 | Jul 3, 2006 | Feb 7, 2007 | 7,809 |
| 621904-99 | Drill | Petrohawk Operating Company | Jun 30, 2006 | Jul 3, 2006 | Feb 7, 2007 | 8,500 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Jun 28, 2007 | Mast Gas Unit G-6-234311 | Kendrick (James) | Sydri Operating LLC | Producing · shut in Jan 1, 2026 | 7,809 |
Formation tops
As filed on W-2/G-1. Subsea from 410 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Austin Chalk | 4,650 | -4,240 |
| Paluxy | 5,350 | -4,940 |
| Massive Anhydrite (marker)BASE MASSIVE ANHYDRITE | 7,192 | -6,782 |
| Rodessa | 7,192 | -6,782 |
| James Lime | 7,702 | -7,292 |
| James LimeJAMES LIME (HORIZONTAL) | 7,801 | -7,391 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 8,716 | 12,428 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 9.625 | 3,215 | 12.25 | 1,025 S |
| 7 | 7,945 | 8.75 | 585 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 | Apr 22, 2008 | Aug 14, 2007 | Yes |
| 00 | Apr 14, 2008 | — | — |
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 42-347-32322 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-347-32322 → 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/34732322, documented in the API reference.