TEXAS · WELLS · WARD COUNTY · WHIRLAWAY 99 LEASE · API 42-475-37046 · DISTRICT 7B
Whirlaway 99 #1HA
Ward County · Phantom (Wolfcamp) field · Producing · Horizontal
Whirlaway 99 #1HA (API 42-475-37046) is a horizontal well in Ward County operated by Diamondback E&P LLC, completed March 31, 2016 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit, issued November 24, 2015, permitted to 11,431 ft.
It was permitted by Manti Tarka Permian OP, LLC and has since transferred to Diamondback E&P LLC on the wellbore schedule.
Completion filings report 10 formation tops, including Clear Fork, Delaware, Glorieta, Holt.
Its lease has reported 312K barrels of oil and 296K mcf of gas since January 2016, last reporting volume in April 2026.
Operator of record
Permitted by Manti Tarka Permian OP, LLC; 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
- 5,251
- 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 | Manti Tarka Permian OP, LLCNov 24, 2015 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 11,431
- total depth, ft
- 1
- permits on file
- Nov 24, 2015
- last permit issued
- Mar 31, 2016
- completed
- 312K
- cumulative oil, bbl
- 296K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Apr 2016 THROUGH Apr 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Mar 31, 2016
- 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 lease this well is completed on; this well is the only one on it.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Whirlaway 99 O-10-48022 | Phantom (Wolfcamp) | Diamondback E&P LLC | 1 | 312K | 296K | Jan 2016 – Apr 2026 |
Oil, barrels lease total
Last 12 months 17,220 · prior 12 12,483(+38%)
Gas, mcf lease total
Last 12 months 12,429 · prior 12 58,203(-79%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Manti Tarka Permian OP, LLCApr 2016 → Nov 2022
- 2Diamondback E&P LLCDec 2022 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 812204-99 | Drill | Manti Tarka Permian OP, LLC | Nov 23, 2015 | Nov 24, 2015 | Dec 11, 2015 | 13,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Mar 31, 2016 | Whirlaway 99 O-10-48022 | Phantom (Wolfcamp) | Diamondback E&P LLC | Producing | 11,431 |
Formation tops
As filed on W-2/G-1. Subsea from 2,662 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Clear ForkCLEARFORK | — | — |
| Delaware | — | — |
| Glorieta | — | — |
| Holt | — | — |
| Queen | — | — |
| Rustler | — | — |
| San AndresSAN ANDRES - HIGH FLOWS, H2S, CO | — | — |
| Seven Rivers | — | — |
| Tubb | — | — |
| Yates | — | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 11,642 | 16,318 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 13.375 | 2,011 | 17.5 | 1,817 S |
| 9.625 | 9,925 | 12.25 | 961 S |
| 5.5 | 16,500 | 8.5 | 2,322 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 | Oct 30, 2025 | Oct 6, 2025 | — |
| 00 | Dec 1, 2016 | Oct 31, 2016 | Yes |
Well logs
2 logs loaded from the RRC's log index, the latest received Feb 13, 2019. 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 |
|---|---|---|---|---|
| COMBINATION: RESISTIVITY/NEUTRON/DENSITY POROSITY | TIFF | 5,000 to 12,300 | Feb 13, 2019run Jan 5, 2016 | 5.80 |
| RESISTIVITY | TIFF | 5,000 to 12,300 | Feb 6, 2019run Jan 5, 2016 | 1.47 |
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 42-475-37046 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-475-37046 → 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.
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/47537046, documented in the API reference.