TEXAS · WELLS · WARD COUNTY · UL WILLOW 383633-16 LEASE · API 42-475-37312 · DISTRICT 7B
UL Willow 383633-16 #1H
Ward County · Phantom (Wolfcamp) field · Producing · Horizontal
UL Willow 383633-16 #1H (API 42-475-37312) is a horizontal well in Ward County operated by Wpx Energy Permian LLC, completed December 9, 2017 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit, issued August 31, 2017, permitted to 11,056 ft.
It was permitted by Felix Energy Holdings II, LLC and has since transferred to Wpx Energy Permian LLC on the wellbore schedule.
Completion filings report 10 formation tops, including Rustler, Delaware, Clear Fork, Glorieta.
Its lease has reported 1.84M barrels of oil and 2.98M mcf of gas since December 2017, last reporting volume in March 2026. The lease carries 7 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by Felix Energy Holdings II, LLC; the EWA schedule now lists a different operator.
- Based in
- Oklahoma City, OK
- P-5 status
- Active (A)
- P-5 last filed
- Oct 22, 2025
- Permits on file
- 956
- Phone
- (405) 235-3611
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | WPX Energy Permian LLC |
| Production reports | WPX Energy Permian, LLCthrough Mar 2026 |
| Latest permit | Felix Energy Holdings II, LLCAug 31, 2017 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 11,056
- total depth, ft
- 1
- permits on file
- Aug 31, 2017
- last permit issued
- Dec 9, 2017
- completed
- 1.84M
- cumulative oil, bbl
- 2.98M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Dec 2017 THROUGH Mar 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Dec 9, 2017
- Shut in
- —
- Plugged
- —
Operator's P-5 on the schedule: Active (A)
Surface location
31.507995, -103.154185 NAD27, as filed
31.508129, -103.154624 WGS84
Permit surface location from the RRC GIS record, referenced to NAD27 as the RRC files it; the WGS84 pair is the same point through NOAA's NADCON grid, and the map link uses it, in Ward County.
Wells nearby
Every well with a location on file around this well, in any state, nearest first.
Texas locations come from drilling permits, so most older Texas wells have none and are not listed.
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 7 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| UL Willow 383633-16 O-10-50120 | Phantom (Wolfcamp) | WPX Energy Permian, LLC | 7 | 1.84M | 2.98M | Dec 2017 – Mar 2026 |
Oil, barrels lease total
Last 12 months 70,539 · prior 12 105,941(-33%)
Gas, mcf lease total
Last 12 months 137,043 · prior 12 187,758(-27%)
Wells named UL Willow 383633-16
WPX Energy Permian LLC's other wells filed under this lease name in Ward County, newest permit first. The RRC gives a gas well its own lease number, so the name is what joins the wells of a unit.
Loading the lease's wellsChain of custody
Every operator that reported production on this well's lease, in order.
- 1Felix Energy Holdings II, LLCDec 2017 → Apr 2020
- 2WPX Energy Permian, LLCMay 2020 → Mar 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 830391-99 | Drill | Felix Energy Holdings II, LLC | Aug 28, 2017 | Aug 31, 2017 | Sep 19, 2017 | 14,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Dec 9, 2017 | UL Willow 383633-16 O-10-50120 | Phantom (Wolfcamp) | WPX Energy Permian LLC | Producing | 11,056 |
Formation tops
As filed on W-2/G-1. Subsea from 2,603 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Rustler | 1,825 | 778 |
| Delaware | 5,023 | -2,420 |
| Clear ForkCLEARFORK | — | — |
| Glorieta | — | — |
| Holt | — | — |
| Queen | — | — |
| Rustler | — | — |
| San AndresSAN ANDRES - HIGH FLOWS, H2S, CO | — | — |
| Seven Rivers | — | — |
| Tubb | — | — |
| Yates | — | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 11,246 | 21,459 | Perforated |
| 11,569 | 21,361 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 13.375 | 1,850 | 17.5 | 2,205 S |
| 10.75 | 5,135 | 12.25 | 820 S |
| 7.625 | 10,782 | 9.875 | 660 S |
| 5.5 | 21,548 | 6.75 | 1,435 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 | Apr 21, 2020 | Dec 16, 2019 | Yes |
| 00 | Sep 16, 2019 | Jun 17, 2019 | — |
| 00 | Jul 20, 2018 | May 4, 2018 | Yes |
Well logs
1 log loaded from the RRC's log index, 1 of it with a digital LAS file, the latest received Sep 24, 2020. While drilling (MWD). 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 |
|---|---|---|---|---|
| Measure While Drilling (MWD)Spans Delaware | LAS + TIFF | 8,679 to 21,575 | Sep 24, 2020 | 1.43 + 15.0 |
"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 42-475-37312 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-475-37312 → 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.
Nearby wells and their tops
NEAREST 8 LOCATED WELLS WITH TOPS · WITHIN 16 KM
Draw a cross-section
This well's tops beside its 5 nearest neighbors, subsea-aligned so they line up regardless of surface terrain.
Open the cross-section →UL Lead King 344035-16 G42-475-37687
1.0 KM · Felix Energy Holdings II, LLC · Section with this well →
| Rustler | 1,728 | 877 |
| Delaware | 5,035 | -2,430 |
| Seven Rivers | — | |
| Holt | — | |
| San Andres | — | |
| Queen | — | |
| Glorieta | — | |
| Clear Fork | — |
10 TOPS · FIRST 8
UL Lead King 344035-16 E42-475-37682
1.0 KM · Felix Energy Holdings II, LLC · Section with this well →
| Rustler | 1,728 | 877 |
| Delaware | 5,035 | -2,430 |
| Seven Rivers | — | |
| San Andres | — | |
| Queen | — | |
| Holt | — | |
| Glorieta | — | |
| Clear Fork | — |
10 TOPS · FIRST 8
UL Lead King 344035-16 B42-475-37680
1.1 KM · Felix Energy Holdings II, LLC · Section with this well →
| Rustler | 1,728 | 877 |
| Delaware | 5,035 | -2,430 |
| Clear Fork | — | |
| Glorieta | — | |
| Holt | — | |
| Queen | — | |
| San Andres | — | |
| Seven Rivers | — |
10 TOPS · FIRST 8
UL Lead King 344035-16 A42-475-37684
1.1 KM · Felix Energy Holdings II, LLC · Section with this well →
| Rustler | 1,728 | 877 |
| Delaware | 5,035 | -2,430 |
| Seven Rivers | — | |
| Tubb | — | |
| Yates | — | |
| Queen | — | |
| San Andres | — | |
| Clear Fork | — |
10 TOPS · FIRST 8
UL Lead King 344035-16 H42-475-37685
1.1 KM · Felix Energy Holdings II, LLC · Section with this well →
| Rustler | 1,728 | 877 |
| Delaware | 5,035 | -2,430 |
| Bone Spring | 8,327 | -5,722 |
| Wolfcamp | 11,148 | -8,543 |
| Montoya | — | |
| Seven Rivers | — | |
| San Andres | — | |
| Queen | — |
18 TOPS · FIRST 8
UL Lead King 344035-16 D42-475-37681
1.1 KM · Felix Energy Holdings II, LLC · Section with this well →
| Rustler | 1,728 | 877 |
| Delaware | 5,035 | -2,430 |
| Seven Rivers | — | |
| San Andres | — | |
| Queen | — | |
| Glorieta | — | |
| Holt | — | |
| Yates | — |
10 TOPS · FIRST 8
Sundance42-475-37259
1.1 KM · Callon Petroleum Operating Co · Section with this well →
| Rustler | 613 | |
| Salado | 1,057 | |
| Lamar | 5,073 | |
| Bell Canyon | 5,112 | |
| Glorieta | — | |
| Yates | — | |
| Seven Rivers | — | |
| San Andres | — |
10 TOPS · FIRST 8
UL Lead King 344035-16 F42-475-37683
1.1 KM · Felix Energy Holdings II, LLC · Section with this well →
| Rustler | 1,728 | 877 |
| Delaware | 5,035 | -2,430 |
| Queen | — | |
| Holt | — | |
| Yates | — | |
| Tubb | — | |
| Glorieta | — | |
| San Andres | — |
10 TOPS · FIRST 8
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/47537312, documented in the API reference.