WELL · 42-173-36497 · DISTRICT 8
Zant #203
Glasscock County · Wilshire (Pennsylvanian) field · Vertical
Zant #203 (API 42-173-36497) is a well in Glasscock County operated by Xto Energy Inc., completed June 26, 2015.
The RRC has issued 3 drilling permits between 2014 and 2017, permitted to 12,000 ft.
Completion filings report 15 formation tops, including Base Cretaceous (marker), Santa Rosa, Rustler, Salado.
Its 2 leases have reported 7.71M barrels of oil and 31M mcf of gas since August 2008, last reporting in July 2026. The leases carry 52 wells, so these are lease totals, not this well alone.
Operator of record
Spring, TX · P-5 Y, filed Feb 4, 2026 · 16,156 permits on file · (832) 625-1100
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | XTO Energy Inc. |
| Production reports | XTO Energy Inc.through Apr 2026 |
| Latest permit | XTO Energy Inc.Jan 20, 2017 |
- 12,000
- total depth, ft
- 3
- permits on file
- Jan 20, 2017
- last permit issued
- Jun 26, 2015
- completed
- 7.71M
- cumulative oil, bbl
- 31M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Aug 2008 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Jun 26, 2015
- 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 52 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Zant O-10-38900 | Spraberry (Trend Area) | XTO Energy Inc. | 51 | 7.71M | 31M | Aug 2008 – Jul 2026 |
| Zant O-9-19329 | Wilshire (Pennsylvanian) | XTO Energy Inc. | 1 | 1.25K | 11.5K | Jun 2015 – Apr 2018 |
Gas, mcf lease total
Last 12 months 3,262,449 · prior 12 3,547,165(-8%)
Oil, barrels lease total
Last 12 months 93,643 · prior 12 156,695(-40%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Cambrian Management, Ltd.Aug 2008 → Aug 2008
- 2Piedra Operating, LLCSep 2008 → Feb 2011
- 3Berry Oil Comp.Mar 2011 → Jun 2014
- 4Linn Operating, Inc.Jul 2014 → Oct 2014
- 5XTO Energy Inc.Nov 2014 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 821466-99 | Recompletion | XTO Energy Inc. | Dec 20, 2016 | Jan 20, 2017 | Sep 19, 2016 | 12,000 |
| 814424-99 | Recompletion | XTO Energy Inc. | Mar 16, 2016 | Mar 18, 2016 | Oct 25, 2014 | 12,000 |
| 782851-99 | Drill | Berry Oil Comp. | Mar 21, 2014 | May 28, 2014 | Oct 25, 2014 | 12,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-9-19329 | — | — | — | — |
| — | — O-10-38900 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 2,572 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Base Cretaceous (marker)BASE CRETACEOUS | 532 | 2,040 |
| Santa Rosa | 768 | 1,804 |
| RustlerRUSTLER ANHYDRITE | 1,458 | 1,114 |
| SaladoSALADO SALT | 1,615 | 957 |
| Tansill | 2,054 | 518 |
| Yates | 2,122 | 450 |
| Seven Rivers | 2,442 | 130 |
| Queen | 3,088 | -516 |
| Grayburg | 3,583 | -1,011 |
| Glorieta | 3,647 | -1,075 |
| San AndresSAN ANDRES - HIGH FLOWS, H2S, CO | 3,766 | -1,194 |
| Clear ForkCLEARFORK | 5,494 | -2,922 |
| Spraberry | 6,770 | -4,198 |
| Fusselman | — | — |
| Spraberry | — | — |
| Wichita-AlbanyWICHITA ALBANY | — | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 7,727 | 10,671 | Perforated |
| 10,382 | 10,671 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 13.375 | 507 | 17.5 | 520 S |
| 8.625 | 3,015 | 11 | 950 S |
| 5.5 | 10,804 | 7.875 | 965 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 | Dec 19, 2017 | Aug 23, 2017 | — |
| 00 | Aug 25, 2016 | Mar 24, 2016 | Yes |
| 00 | Dec 31, 2014 | Dec 12, 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 42-173-36497 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-173-36497 → scanned completion filings
Log images are in archives with no per-well link: the RRC's Neubus archive (2004 onward). 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/17336497, documented in the API reference.