TEXAS · WELLS · HOWARD COUNTY · WALKER 4 LEASE · API 42-227-36340 · DISTRICT 7B
Walker 4 #1
Howard County · Spraberry (Trend Area) field · Shut In · Vertical
Walker 4 #1 (API 42-227-36340) is a well in Howard County operated by Ovintiv USA Inc., completed July 30, 2010 and listed as shut in on the RRC schedule, shut in December 1, 2023.
The RRC has issued one drilling permit (amended once), issued February 24, 2010, permitted to 9,645 ft.
It was permitted by Element Petroleum Operating, LLC and has since transferred to Ovintiv USA Inc. on the wellbore schedule.
Completion filings report 3 formation tops, including Spraberry, Dean, Pennsylvanian.
Its lease has reported 33.4K barrels of oil and 103K mcf of gas since July 2010, last reporting volume in December 2023. The lease carries 2 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by Element Petroleum Operating, LLC; the EWA schedule now lists a different operator.
- Based in
- Denver, CO
- P-5 status
- Active (A)
- P-5 last filed
- Dec 12, 2025
- Permits on file
- 1,391
- Phone
- (720) 876-5176
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Ovintiv USA Inc. |
| Production reports | Ovintiv USA Inc.through Dec 2023 |
| Latest permit | Element Petroleum Operating, LLCFeb 24, 2010 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 9,645
- total depth, ft
- 2
- permits on file
- Feb 24, 2010
- last permit issued
- Jul 30, 2010
- completed
- 33.4K
- cumulative oil, bbl
- 103K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Aug 2010 THROUGH Dec 2023
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Jul 30, 2010
- Shut in
- Dec 1, 2023
- 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 lease this well is completed on; they carry 2 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Walker 4 O-10-40599 | Spraberry (Trend Area) | Ovintiv USA Inc. | 2 | 33.4K | 103K | Jul 2010 – Dec 2023 |
Oil, barrels lease total
Last 12 months 0 · prior 12 0
Gas, mcf lease total
Last 12 months 0 · prior 12 0
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Element Petroleum Operating, LLCAug 2010 → Sep 2011
- 2Athlon FE Operating LLCOct 2011 → Dec 2013
- 3Athlon Holdings LPJan 2014 → Jan 2015
- 4Encana Oil & Gas(usa) Inc.Feb 2015 → Jan 2020
- 5Ovintiv USA Inc.Feb 2020 → Nov 2023
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 691769-98 | Drill | Element Petroleum Operating, LLC | Nov 10, 2010 | Feb 24, 2010 | Jun 4, 2010 | 11,000 |
| 691769-99 | Drill | Element Petroleum Operating, LLC | Feb 24, 2010 | Feb 24, 2010 | Jun 4, 2010 | 11,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Jul 30, 2010 | Walker 4 O-10-40599 | Spraberry (Trend Area) | Ovintiv USA Inc. | Shut In · shut in Dec 1, 2023 | 9,645 |
Formation tops
As filed on W-2/G-1. Subsea from 2,663 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| SpraberryLOWER SPRABERRY | 6,521 | -3,858 |
| Dean | 7,182 | -4,519 |
| PennsylvanianPENN SHALE | 8,387 | -5,724 |
| PennsylvanianPENN LIME | 8,876 | -6,213 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 7,044 | 7,509 | Perforated |
| 7,803 | 8,367 | Perforated |
| 8,542 | 8,914 | Perforated |
| 9,019 | 9,448 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 12.75 | 272 | 17.5 | 300 S |
| 8.625 | 3,789 | 11 | 900 S |
| 5.5 | 9,630 | 7.875 | 1,325 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 | May 31, 2011 | Nov 22, 2010 | Yes |
| 00 | Apr 14, 2011 | — | — |
Well logs
4 logs loaded from the RRC's log index, the latest received Jul 4, 2013. Cased hole, 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 |
|---|---|---|---|---|
| SURVEYS CASED HOLESpans Spraberry, Dean, Pennsylvanian | TIFF | 4,000 to 9,590 | Jul 4, 2013run Jun 29, 2010 | 3.94 |
| NEUTRON/DENSITY POROSITYSpans Spraberry, Dean, Pennsylvanian | TIFF | 100 to 9,645 | Jul 4, 2013run Jun 18, 2010 | 3.12 |
| RESISTIVITYSpans Spraberry, Dean, Pennsylvanian | TIFF | 3,792 to 9,645 | Jul 4, 2013run Jun 18, 2010 | 0.81 |
| RESISTIVITYSpans Spraberry, Dean, Pennsylvanian | TIFF | 5,000 to 9,648 | Jul 4, 2013run Jun 18, 2010 | 2.54 |
"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 42-227-36340 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-227-36340 → 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/22736340, documented in the API reference.