TEXAS · WELLS · MIDLAND COUNTY · API 42-329-35217 · DISTRICT 7B
Willis 44 #6
Midland County · Spraberry (Trend Area) field · Producing · Vertical
Willis 44 #6 (API 42-329-35217) is a well in Midland County operated by Diamondback E&P LLC, completed December 29, 2007 and listed as producing on the RRC schedule.
The RRC has issued 3 drilling permits (amended once) between 2004 and 2017, permitted to 12,185 ft.
It was permitted by Endeavor Energy Resources L.P. and has since transferred to Diamondback E&P LLC on the wellbore schedule.
Completion filings report 9 formation tops, including Spraberry, L. Spraberry, Dean, Wolfcamp.
Its 2 leases have reported 422K barrels of oil and 1.98M mcf of gas since February 2003, last reporting in July 2026. The leases carry 9 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by Endeavor Energy Resources L.P.; the EWA schedule now lists a different operator.
- Based in
- Midland, TX
- P-5 status
- Active – Extension (X)
- P-5 last filed
- May 4, 2026
- Permits on file
- 5,237
- Phone
- (432) 221-7400
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Diamondback E&P LLC |
| Production reports | Diamondback E&P LLCthrough Apr 2026 |
| Latest permit | Endeavor Energy Resources L.P.Mar 9, 2017 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 12,185
- total depth, ft
- 4
- permits on file
- Mar 9, 2017
- last permit issued
- Dec 29, 2007
- completed
- 422K
- cumulative oil, bbl
- 1.98M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Feb 2003 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Dec 29, 2007
- 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 9 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Willis "44" O-10-37065 | Spraberry (Trend Area) | Diamondback E&P LLC | 8 | 421K | 1.96M | Feb 2003 – Jul 2026 |
| Willis "44" O-10-37595 | Sto-Wil (Fusselman) | Diamondback E&P LLC | 1 | 1.56K | 11K | May 2005 – Jul 2026 |
Oil, barrels lease total
Last 12 months 1,863 · prior 12 3,648(-49%)
Gas, mcf lease total
Last 12 months 0 · prior 12 33(-100%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Endeavor Energy Resources L.P.Feb 2003 → Dec 2024
- 2Diamondback E&P LLCJan 2025 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 823826-99 | Recompletion | Endeavor Energy Resources L.P. | Feb 28, 2017 | Mar 9, 2017 | — | 12,185 |
| 648898-99 | Recompletion | Endeavor Energy Resources L.P. | Nov 1, 2007 | Nov 9, 2007 | Dec 18, 2007 | 13,000 |
| 555079-98 | Drill | Endeavor Energy Resources L.P. | Jun 8, 2005 | Jun 9, 2005 | Apr 6, 2005 | 13,000 |
| 555079-99 | Drill | Endeavor Energy Resources L.P. | Dec 20, 2004 | Dec 21, 2004 | Apr 6, 2005 | 12,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Dec 29, 2007 | Willis 44 O-10-37065 | Spraberry (Trend Area) | Diamondback E&P LLC | Producing | 12,185 |
| Dec 29, 2007 | Willis 44 O-10-37065 | Spraberry (Trend Area) | Diamondback E&P LLC | Producing | 12,185 |
| May 17, 2005 | Willis 44 O-10-37595 | Sto-Wil (Fusselman) | Diamondback E&P LLC | Partial Plug · shut in Jan 1, 2008 | 12,185 |
Formation tops
As filed on W-2/G-1. Subsea from 2,704 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Spraberry | 7,450 | -4,746 |
| SpraberryLOWER SPRABERRY | 8,000 | -5,296 |
| L. Spraberry | 8,000 | -5,296 |
| Dean | 8,800 | -6,096 |
| Wolfcamp | 9,300 | -6,596 |
| WolfcampLOWER WOLFCAMP LIME | 10,175 | -7,471 |
| Wolfcamp | 10,175 | -7,471 |
| Strawn | 10,400 | -7,696 |
| AtokaATOKA "D" | 10,925 | -8,221 |
| MississippianMISS | 11,360 | -8,656 |
| Devonian | 11,515 | -8,811 |
| Fusselman | 12,025 | -9,321 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 8,027 | 9,841 | Perforated |
| 8,027 | 10,970 | Perforated |
| 12,070 | 12,074 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 12.75 | 417 | 17.5 | 300 S |
| 8.625 | 4,792 | 12.75 | 425 S |
| 4.5 | 12,179 | 7.875 | 1,325 S |
| 4.5 | — | 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. About these reports →
| Suffix | Filed | W-2 / G-1 date | Logs referenced |
|---|---|---|---|
| 00 | Jun 14, 2017 | Mar 18, 2017 | — |
| 00 | Jul 14, 2008 | Feb 28, 2008 | Yes |
| 00 | Jun 18, 2008 | — | — |
| 00 | Feb 22, 2006 | Jun 17, 2005 | Yes |
| 00 | Dec 9, 2005 | — | — |
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 42-329-35217 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-329-35217 → 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/32935217, documented in the API reference.