TEXAS · WELLS · COOKE COUNTY · API 42-097-31539 · DISTRICT 7C
Walnut Bend Field Unit #1578
Cooke County · Walnut Bend (Consolidated) field · Producing · Vertical
- Permitted field
- Walnut Bend (Winger)
Walnut Bend Field Unit #1578 (API 42-097-31539) is a well in Cooke County operated by Sydri Operating LLC, completed January 30, 2008 and listed as producing on the RRC schedule.
The RRC has issued 4 drilling permits between 1980 and 1986, permitted to 5,927 ft.
It was permitted by Arco Oil & Gas CO. and has since transferred to Sydri Operating LLC on the wellbore schedule.
Completion filings report 6 formation tops, including Cox, Bruhlmeyer, Hudspeth, Best.
Its 2 leases have reported 6.69M barrels of oil and 1.38M mcf of gas since January 1993, last reporting volume in April 2026. The leases carry 370 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by Arco Oil & Gas Co.; 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 | Arco Oil & Gas Co.Sep 29, 1986 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 5,927
- total depth, ft
- 4
- permits on file
- Sep 29, 1986
- last permit issued
- Jan 30, 2008
- completed
- 6.69M
- cumulative oil, bbl
- 1.38M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Apr 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Jan 30, 2008
- 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.
Texas locations come from drilling permits, so most older Texas wells have none and are not listed.
Lease production
PDQ LEASE REPORTS · REPORTED THROUGH APR 2026
Texas reports oil by lease, not by well. These are the 2 leases this well is completed on; they carry 370 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Walnut Bend Field Unit O-13-27427 | Walnut Bend (Consolidated) | Sydri Operating, LLC | 370 | 6.69M | 1.38M | Jan 1993 – Apr 2026 |
| — O-13-13264 | — | — | 0 | 0 | 0 | — |
Oil, barrels lease total
Last 12 months 75,510 · prior 12 90,992(-17%)
Gas, mcf lease total
Last 12 months 21,434 · prior 12 22,769(-6%)
Wells named Walnut Bend Field Unit
Sydri Operating LLC's other wells filed under this lease name in Cooke 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.
- 1Arco Oil & Gas Co.Jan 1993 → Feb 1994
- 2Vastar Resources, Inc.Mar 1994 → May 1999
- 3Gruy Petroleum Management Co.Jun 1999 → Apr 2006
- 4Cimarex Energy Co. of ColoradoMay 2006 → Dec 2012
- 5Merit Energy CompanyJan 2013 → Nov 2020
- 6Team Operating, L.L.C.Dec 2020 → Jun 2021
- 7Sydri Operating, LLCJul 2021 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 321098-99 | Recompletion | Arco Oil & Gas Co. | Sep 25, 1986 | Sep 29, 1986 | — | 5,926 |
| 82496-99 | Drill | Arco Oil & Gas Co. | Apr 28, 1980 | Apr 28, 1980 | — | 5,900 |
| 75269-99 | Drill | Arco Oil & Gas Co. | Mar 14, 1980 | Mar 14, 1980 | — | 5,900 |
| 75265-99 | Drill | Arco Oil & Gas Co. | Mar 14, 1980 | Mar 14, 1980 | — | 5,900 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Jan 30, 2008 | Walnut Bend Field Unit O-13-27427 | Walnut Bend (Consolidated) | Sydri Operating LLC | Producing | 5,927 |
| Jun 5, 1980 | Walnut Bend Field Unit No. 2 O-13-13264 | Walnut Bend (Regular) | Arco Oil & Gas Co. | Not on Schedule | — |
Formation tops
As filed on W-2/G-1. Subsea from 812 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Cox | 3,030 | -2,218 |
| Bruhlmeyer | 3,545 | -2,733 |
| Hudspeth | 3,900 | -3,088 |
| Best | 5,026 | -4,214 |
| Atkins | 5,180 | -4,368 |
| Winger | 5,440 | -4,628 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 4,124 | 4,697 | Perforated |
| 4,126 | 4,130 | Perforated |
| 4,172 | 4,184 | Perforated |
| 4,172 | 4,897 | Perforated |
| 4,208 | 4,210 | Perforated |
| 4,588 | 4,590 | Perforated |
| 5,128 | 5,134 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 1,202 | 12.25 | 650 S |
| 8.625 | 1,202 | — | 650 S |
| 2.875 | 5,148 | — | — |
| 5.5 | 5,926 | 7.875 | 710 S |
| 5.5 | 5,927 | — | 710 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 29, 2008 | Mar 7, 2008 | — |
| 00 | Dec 2, 1991 | Sep 7, 1989 | — |
| 00 | Nov 27, 1991 | Dec 19, 1989 | — |
| 00 | Nov 12, 1991 | Jun 17, 1980 | — |
| 00 | Jan 12, 1984 | Jun 17, 1980 | — |
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 42-097-31539 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-097-31539 → 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/09731539, documented in the API reference.