TEXAS · WELLS · GREGG COUNTY · PORTLEY-TAYLOR GAS UNIT LEASE · API 42-183-31598 · DISTRICT 06
Portley-Taylor Gas Unit #9
Gregg County · Oak Hill (Cotton Valley) field · Producing · Vertical
Portley-Taylor Gas Unit #9 (API 42-183-31598) is a well in Gregg County operated by Sydri Operating LLC, completed November 2, 2003 and listed as producing on the RRC schedule, shut in April 1, 2009.
The RRC has issued one drilling permit, issued August 29, 2003, permitted to 10,750 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 Mass Ahahy., Rodessa, Pettit, Travis Peak.
Its lease has reported 656 barrels of oil and 363K mcf of gas since November 2003, with no volume in the three years through August 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 Jan 2013 |
| Latest permit | Chinn Exploration CompanyAug 29, 2003 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 10,750
- total depth, ft
- 1
- permits on file
- Aug 29, 2003
- last permit issued
- Nov 2, 2003
- completed
- 656
- cumulative oil, bbl
- 363K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · NOV 2003 THROUGH JAN 2013
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Nov 2, 2003
- Shut in
- Apr 1, 2009
- 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.
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 →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Portley-Taylor Gas Unit G-6-200138 | Oak Hill (Cotton Valley) | Sydri Operating, LLC | 1 | 656 | 363K | Nov 2003 – Jan 2013 |
No volumes reported on these leases in the last three years.
Wells named Portley-Taylor Gas Unit
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 wellsChain of custody
Every operator that reported production on this well's lease, in order.
- 1Chinn Exploration CompanyNov 2003 → Jan 2013
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 535921-99 | Drill | Chinn Exploration Company | Aug 29, 2003 | Aug 29, 2003 | Sep 3, 2003 | 11,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Nov 2, 2003 | Portley-Taylor Gas Unit G-6-200138 | Oak Hill (Cotton Valley) | Sydri Operating LLC | Producing · shut in Apr 1, 2009 | 10,750 |
Formation tops
As filed on W-2/G-1. Subsea from 298 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Mass Ahahy. | 6,262 | -5,964 |
| Rodessa | 6,360 | -6,062 |
| Pettit | 6,970 | -6,672 |
| Travis Peak | 7,260 | -6,962 |
| Cotton Valley | 9,200 | -8,902 |
| Taylor | 10,351 | -10,053 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 9,220 | 10,656 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 1,525 | 11 | 410 S |
| 4.5 | 10,750 | 7.875 | 1,650 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 8, 2004 | Feb 20, 2004 | Yes |
| 00 | Apr 1, 2004 | — | — |
Well logs
1 log loaded from the RRC's log index, the latest received Jul 9, 2007. 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 described | Files | Intervalft, as filed | Datereceived | SizeMB |
|---|---|---|---|---|
| Combination: Resistivity/Neutron Density PorosityPLATFORM EXPRESSSpans Mass Ahahy., Rodessa, Pettit, Travis Peak, Cotton Valley, Taylor | TIFF | 1,717 to 10,749 | Jul 9, 2007run Sep 24, 2003 | — |
"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 42-183-31598 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-183-31598 → 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/18331598, documented in the API reference.