TEXAS · WELLS · GREGG COUNTY · GRISSOM GAS UNIT LEASE · API 42-183-31665 · DISTRICT 06
Grissom Gas Unit #11
Gregg County · Oak Hill (Cotton Valley) field · Producing · Directional
Grissom Gas Unit #11 (API 42-183-31665) is a well in Gregg County operated by Sydri Operating LLC, completed August 17, 2004 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit (amended twice), issued April 13, 2004, permitted to 10,962 ft.
It was permitted by Chinn Exploration Company and has since transferred to Sydri Operating LLC on the wellbore schedule.
Completion filings report 5 formation tops, including BMA, Petit, Blime, Taylor.
Its lease has reported 5.79K barrels of oil and 1.41M mcf of gas since August 2004, last reporting volume in April 2026.
Operator of record
Permitted by Chinn Exploration 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 Apr 2026 |
| Latest permit | Chinn Exploration CompanyApr 13, 2004 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 10,962
- total depth, ft
- 3
- permits on file
- Apr 13, 2004
- last permit issued
- Aug 17, 2004
- completed
- 5.79K
- cumulative oil, bbl
- 1.41M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Aug 2004 THROUGH Apr 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Aug 17, 2004
- 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 |
|---|---|---|---|---|---|---|
| Grissom Gas Unit G-6-205293 | Oak Hill (Cotton Valley) | Sydri Operating, LLC | 1 | 5.79K | 1.41M | Aug 2004 – Apr 2026 |
Gas, mcf lease total
Last 12 months 175 · prior 12 7,342(-98%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Chinn Exploration CompanyAug 2004 → Nov 2015
- 2Trivium Operating, LLCDec 2015 → Feb 2022
- 3Sydri Operating, LLCMar 2022 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 543956-97 | Drill | Chinn Exploration Company | Oct 28, 2004 | Apr 13, 2004 | — | 11,000 |
| 543956-98 | Drill | Chinn Exploration Company | May 17, 2004 | Apr 13, 2004 | May 28, 2004 | 11,000 |
| 543956-99 | Drill | Chinn Exploration Company | Apr 1, 2004 | Apr 13, 2004 | — | 11,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Aug 17, 2004 | Grissom Gas Unit G-6-205293 | Oak Hill (Cotton Valley) | Sydri Operating LLC | Producing | 10,962 |
Formation tops
As filed on W-2/G-1. Subsea from 272 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| BMA | 6,205 | -5,933 |
| Petit | 6,670 | -6,398 |
| Blime | 9,221 | -8,949 |
| Taylor | 10,293 | -10,021 |
| Travis Peak | — | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 9,260 | 10,638 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 9.625 | 4,052 | 13 | 1,250 S |
| 4.5 | 10,922 | 7.875 | 1,600 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 | Mar 29, 2005 | Oct 27, 2004 | Yes |
| 00 | Jan 12, 2005 | — | — |
Well logs
The RRC's map lists this well among those with logs online. Its monthly inventories loaded here, which start in July 2006, list none for it, so none are itemized.
Open the RRC's log search for this well ↗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 42-183-31665 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-183-31665 → 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/18331665, documented in the API reference.