WELL · 42-135-43510 · DISTRICT 8
Parks Bell #4029H
Ector County · Spraberry (Trend Area) field · Horizontal
Parks Bell #4029H (API 42-135-43510) is a horizontal well in Ector County operated by Cog Operating LLC, completed September 9, 2018.
The RRC has issued one drilling permit, issued April 20, 2017, permitted to 12,000 ft.
It was permitted by Rsp Permian, LLC and has since transferred to Cog Operating LLC on the wellbore schedule.
Completion filings report 10 formation tops, including Santa Rosa, Yates, Seven Rivers, Queen.
Its 2 leases have reported 4.76M barrels of oil and 10.2M mcf of gas since June 2008, last reporting in July 2026. The leases carry 46 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by RSP Permian, LLC; the EWA schedule now lists a different operator.
- Based in
- Midland, TX
- P-5 status
- Active – Extension (X)
- P-5 last filed
- Jun 2, 2026
- Permits on file
- 4,568
- Phone
- (432) 683-7443
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | COG Operating LLC |
| Production reports | COG Operating LLCthrough Apr 2026 |
| Latest permit | RSP Permian, LLCApr 20, 2017 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 12,000
- total depth, ft
- 1
- permits on file
- Apr 20, 2017
- last permit issued
- Sep 9, 2018
- completed
- 4.76M
- cumulative oil, bbl
- 10.2M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jun 2008 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Sep 9, 2018
- Shut in
- —
- Plugged
- —
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 2 leases this well is completed on; they carry 46 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Parks Bell O-10-38829 | Spraberry (Trend Area) | COG Operating LLC | 28 | 3.03M | 3.87M | Jun 2008 – Jul 2026 |
| Parks Bell HZ Unit O-10-53121 | Spraberry (Trend Area) | COG Operating LLC | 18 | 1.72M | 6.37M | Feb 2020 – Jul 2026 |
Oil, barrels lease total
Last 12 months 176,517 · prior 12 182,935(-4%)
Gas, mcf lease total
Last 12 months 902,587 · prior 12 898,248(+0%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Patriot Resources, Inc.Jun 2008 → Jan 2011
- 2RSP Permian, LLCFeb 2011 → Jul 2018
- 3COG Operating LLCAug 2018 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 825305-99 | Drill | RSP Permian, LLC | Apr 7, 2017 | Apr 20, 2017 | Apr 1, 2018 | 12,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-10-38829 | — | — | — | — |
| — | — O-10-53121 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 2,988 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Santa RosaSANTA ROSA BASE | 1,022 | 1,966 |
| Yates | 2,692 | 296 |
| Seven Rivers | 3,662 | -674 |
| Queen | 4,062 | -1,074 |
| Grayburg | 4,484 | -1,496 |
| San AndresSAN ANDRES - HIGH FLOWS, H2S, CO | 5,122 | -2,134 |
| Holt | 5,684 | -2,696 |
| Glorieta | 5,714 | -2,726 |
| Tubb | 5,914 | -2,926 |
| Clear ForkCLEARFORK | 7,503 | -4,515 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 9,819 | 17,345 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 13.375 | 1,603 | 17.5 | 1,680 S |
| 9.625 | 8,677 | 12.25 | 582 S |
| 5.5 | 17,440 | 8.5 | 1,680 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. About these reports →
| Suffix | Filed | W-2 / G-1 date | Logs referenced |
|---|---|---|---|
| 00 | Mar 12, 2020 | Jan 23, 2019 | Yes |
| 00 | May 14, 2019 | Jan 23, 2019 | Yes |
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 42-135-43510 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-135-43510 → scanned completion filings
Log images are in archives with no per-well link: the RRC's Neubus archive (2004 onward) and the University Lands library. then paste it into their search.
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/13543510, documented in the API reference.