TEXAS · WELLS · ECTOR COUNTY · API 42-135-41820 · DISTRICT 7B
Parks Bell HZ Unit #4003H
Ector County · Spraberry (Trend Area) field · Producing · Horizontal
Parks Bell HZ Unit #4003H (API 42-135-41820) is a horizontal well in Ector County operated by Cog Operating LLC, completed September 5, 2012 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit, issued May 7, 2012, permitted to 10,376 ft.
It was permitted by Rsp Permian, LLC and has since transferred to Cog Operating LLC on the wellbore schedule.
Completion filings report 3 formation tops, including Spraberry, Wolfcamp, Cline.
Its 2 leases have reported 4.76M barrels of oil and 10.2M mcf of gas since June 2008, last reporting volume in April 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, LLCMay 7, 2012 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 10,376
- total depth, ft
- 1
- permits on file
- May 7, 2012
- last permit issued
- Sep 5, 2012
- completed
- 4.76M
- cumulative oil, bbl
- 10.2M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jun 2008 THROUGH Apr 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Sep 5, 2012
- 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 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 – Apr 2026 |
| Parks Bell HZ Unit O-10-53121 | Spraberry (Trend Area) | COG Operating LLC | 18 | 1.72M | 6.37M | Feb 2020 – Apr 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 |
|---|---|---|---|---|---|---|
| 738911-99 | Drill | RSP Permian, LLC | Apr 24, 2012 | May 7, 2012 | Jun 23, 2012 | 12,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Sep 5, 2012 | Parks Bell HZ Unit O-10-53121 | Spraberry (Trend Area) | COG Operating LLC | Producing | 10,376 |
| Sep 5, 2012 | Parks Bell O-10-38829 | Spraberry (Trend Area) | COG Operating LLC | Not on Schedule | — |
| Sep 5, 2012 | Parks Bell O-10-38829 | Spraberry (Trend Area) | COG Operating LLC | Not on Schedule | — |
Formation tops
As filed on W-2/G-1. Subsea from 2,992 ft elevation.Download CSV →
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 10,753 | 14,721 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 13.375 | 1,685 | 17.5 | 1,400 S |
| 9.625 | 5,598 | 12.25 | 735 S |
| 5.5 | 14,872 | 6.75 | 830 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 12, 2020 | Aug 15, 2013 | Yes |
| 00 | Feb 22, 2014 | Aug 15, 2013 | Yes |
| 00 | Apr 4, 2013 | Oct 29, 2012 | Yes |
Well logs
1 log loaded from the RRC's log index, the latest received Jul 26, 2013. Neutron. 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 |
|---|---|---|---|---|
| NEUTRON POROSITYSpans Spraberry, Wolfcamp | TIFF | 3,500 to 9,700 | Jul 26, 2013run Aug 17, 2012 | 4.23 |
"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 42-135-41820 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-135-41820 → scanned completion filings
The logs loaded for this well are under Well logs, with the RRC's log search for it. The University Lands library has no per-well link: then paste it into its 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/13541820, documented in the API reference.