TEXAS · WELLS · GREGG COUNTY · THOMPSON "C" LEASE · API 42-183-31718 · DISTRICT 06

Thompson C #4

On schedule

Gregg County · Oak Hill (Cotton Valley) field · Producing  · Vertical

Thompson C #4 (API 42-183-31718) is a well in Gregg County operated by Sydri Operating LLC, completed December 24, 2004 and listed as producing on the RRC schedule.

The RRC has issued one drilling permit, issued October 20, 2004, permitted to 10,905 ft.

It was permitted by Chinn Exploration Company and has since transferred to Sydri Operating LLC on the wellbore schedule.

Completion filings report 6 formation tops, including BMA, Rodessa, Pettit, Travis Peak.

Its lease has reported 2.92K barrels of oil and 988K mcf of gas since December 2004, last reporting volume in August 2026.

Operator of record

Sydri Operating LLC

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 scheduleSydri Operating LLC
Production reportsSydri Operating, LLCthrough Aug 2026
Latest permitChinn Exploration CompanyOct 20, 2004

The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.

10,905
total depth, ft
1
permits on file
Oct 20, 2004
last permit issued
Dec 24, 2004
completed
2.92K
cumulative oil, bbl
988K
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · DEC 2004 THROUGH AUG 2026

Regulatory status · RRC wellbore file

Schedule
ON SCHEDULE
Completed
Dec 24, 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.

Wells nearby

Every well with a location on file around this well, in any state, nearest first.

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Texas locations come from drilling permits, so most older Texas wells have none and are not listed.

Lease production

PDQ LEASE REPORTS · REPORTED THROUGH AUG 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 →

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
Thompson "C" G-6-208925Oak Hill (Cotton Valley)Sydri Operating, LLC12.92K988KDec 2004 – Aug 2026

Gas, mcf lease total

Last 12 months 16,156 · prior 12 19,555(-17%)

01K2K3K202420252026

Wells named Thompson C

Sydri Operating LLC's other wells filed under this lease name in Gregg 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 wells

Chain of custody

Every operator that reported production on this well's lease, in order.

  1. 1Chinn Exploration CompanyDec 2004 → Nov 2015
  2. 2Trivium Operating, LLCDec 2015 → Feb 2022
  3. 3Sydri Operating, LLCMar 2022 → Aug 2026

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
552441-99DrillChinn Exploration CompanyOct 18, 2004Oct 20, 2004—11,000

Completions

CompletedLeaseFieldOperatorStatusDepth
Dec 24, 2004Thompson C G-6-208925Oak Hill (Cotton Valley)Sydri Operating LLCProducing10,905

Formation tops

As filed on W-2/G-1. Subsea from 361 ft elevation.Download CSV →

FormationMD ftSubsea
BMA6,130-5,769
Rodessa6,380-6,019
Pettit7,037-6,676
Travis Peak7,310-6,949
B Lime9,210-8,849
Taylor10,404-10,043

Perforations

Perforated and open-hole intervals.

FromToType
9,30410,792Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
8.6251,51711410 S
4.510,9057.8751,679 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 →

SuffixRRC record dateW-2 / G-1 dateLogs referenced
00Aug 19, 2005Mar 22, 2005Yes
00Jun 29, 2005——

Well logs

1 log loaded from the RRC's log index, the latest received Aug 11, 2008. 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 describedFiles Intervalft, as filedDatereceivedSizeMB
COMBINATION: RESISTIVITY/NEUTRON/DENSITY POROSITYSpans BMA, Rodessa, Pettit, Travis Peak, B Lime, TaylorTIFF1,517 to 10,853Aug 11, 2008run Nov 30, 20042.13

"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.

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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.

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/18331718, documented in the API reference.