WELL · 42-317-39020 · DISTRICT 8
Tarzan Standefer 9 #4
Martin County · Spraberry (Trend Area) field · Producing · Vertical
Tarzan Standefer 9 #4 (API 42-317-39020) is a well in Martin County operated by Ovintiv USA Inc., completed April 7, 2014 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit, issued November 26, 2013, permitted to 11,350 ft.
It was permitted by Athlon Energy Operating LLC and has since transferred to Ovintiv USA Inc. on the wellbore schedule.
Completion filings report 10 formation tops, including Yates, Grayburg, San Andres, Spraberry.
Its lease has reported 284K barrels of oil and 893K mcf of gas since May 1998, last reporting in July 2026. The lease carries 6 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by Athlon Energy Operating LLC; the EWA schedule now lists a different operator.
Denver, CO · P-5 Y, filed Oct 4, 2025 · 1,390 permits on file · (877) 386-2200
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Ovintiv USA Inc. |
| Production reports | Ovintiv USA Inc.through Apr 2026 |
| Latest permit | Athlon Energy Operating LLCNov 26, 2013 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 11,350
- total depth, ft
- 1
- permits on file
- Nov 26, 2013
- last permit issued
- Apr 7, 2014
- completed
- 284K
- cumulative oil, bbl
- 893K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · May 1998 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Apr 7, 2014
- Shut in
- —
- Plugged
- —
Operator's P-5 on the schedule: Active
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 6 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Tarzan Standefer 9 O-10-35803 | Spraberry (Trend Area) | Ovintiv USA Inc. | 6 | 284K | 893K | May 1998 – Jul 2026 |
Oil, barrels lease total
Last 12 months 3,691 · prior 12 17,225(-79%)
Gas, mcf lease total
Last 12 months 5,533 · prior 12 24,137(-77%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Arco PermianMay 1998 → Dec 2001
- 2BP America Production CompanyJan 2002 → Jun 2003
- 3OXY USA WTP LPJul 2003 → Jul 2003
- 4Forest Oil CorporationAug 2003 → Dec 2009
- 5Sandridge Expl. and Prod., LLCJan 2010 → Sep 2010
- 6Athlon Energy Operating LLCOct 2010 → Dec 2013
- 7Athlon Holdings LPJan 2014 → Jan 2015
- 8Encana Oil & Gas(usa) Inc.Feb 2015 → Jan 2020
- 9Ovintiv USA Inc.Feb 2020 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 772394-99 | Drill | Athlon Energy Operating LLC | Oct 23, 2013 | Nov 26, 2013 | Mar 4, 2014 | 11,350 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-10-35803 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 2,830 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Yates | 2,651 | 179 |
| Grayburg | 3,666 | -836 |
| San AndresSAN ANDRES - ACTIVE CO2 FLOOD; H | 4,112 | -1,282 |
| Spraberry | 7,436 | -4,606 |
| Dean | 8,723 | -5,893 |
| Wolfcamp | 8,974 | -6,144 |
| Cisco | 10,110 | -7,280 |
| Pennsylvanian | — | — |
| Queen | — | — |
| Santa Rosa | — | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 8,216 | 11,048 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 13.375 | 340 | 17.5 | 375 S |
| 8.625 | 4,880 | 11 | 600 S |
| 5.5 | 11,148 | 7.875 | 950 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 | Aug 15, 2014 | Jun 5, 2014 | 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 42-317-39020 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-317-39020 → 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/31739020, documented in the API reference.