WELL · 42-461-33928 · DISTRICT 7
Firefly A #1
Upton County · Spraberry (Trend Area) field · Vertical
Firefly A #1 (API 42-461-33928) is a plugged well in Upton County, plugged August 4, 2023, last operated by Discovery Operating Inc..
The RRC has issued one drilling permit, issued March 26, 1998, permitted to 10,500 ft.
Completion filings report 3 formation tops, including Spraberry, Dean, Wolfcamp.
Its 2 leases have reported 171K barrels of oil and 468K mcf of gas since July 1998, last reporting in July 2026. The leases carry 5 wells, so these are lease totals, not this well alone.
Operator of record
- Based in
- Midland, TX
- P-5 status
- Active (A)
- P-5 last filed
- Mar 31, 2026
- Permits on file
- 712
- Phone
- (432) 683-5203
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Discovery Operating Inc. |
| Production reports | Discovery Operating, Inc.through Apr 2026 |
| Latest permit | Discovery Operating, Inc.Mar 26, 1998 |
- 10,500
- total depth, ft
- 1
- permits on file
- Mar 26, 1998
- last permit issued
- Jun 24, 1998
- completed
- 171K
- cumulative oil, bbl
- 468K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jul 1998 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Jun 24, 1998
- Shut in
- —
- Plugged
- Aug 4, 2023
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 5 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Firefly A O-9-16578 | Spraberry (Trend Area) | Discovery Operating, Inc. | 3 | 57.4K | 209K | May 2008 – Jul 2026 |
| Firefly A O-9-14797 | Dai (Wolfcamp) | Discovery Operating, Inc. | 2 | 113K | 259K | Jul 1998 – Nov 2019 |
Gas, mcf lease total
Last 12 months 1,385 · prior 12 5,213(-73%)
Oil, barrels lease total
Last 12 months 461 · prior 12 614(-25%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Discovery Operating, Inc.Jul 1998 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 474678-99 | Drill | Discovery Operating, Inc. | Mar 24, 1998 | Mar 26, 1998 | Apr 16, 1998 | 10,500 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-9-14797 | — | — | — | — |
| — | — O-9-16578 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 2,854 ft elevation.Download CSV →
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 9,771 | 9,834 | Perforated |
| 9,771 | 10,204 | Perforated |
| 10,052 | 10,088 | Perforated |
| 10,152 | 10,204 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 12.75 | 420 | 17.5 | 380 S |
| 8.625 | 4,974 | 11 | 545 S |
| 5.5 | 10,246 | 7.875 | 340 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 | Feb 28, 2020 | Feb 20, 2020 | — |
| 00 | Feb 21, 2020 | Feb 20, 2020 | — |
| 00 | Aug 10, 1998 | Jul 22, 1998 | Yes |
| 00 | Jul 31, 1998 | — | — |
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 42-461-33928 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-461-33928 → 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/46133928, documented in the API reference.