WELL · 42-461-37553 · DISTRICT 7
Madolyn #3
Upton County · Spraberry (Trend Area) field · Producing · Vertical
Madolyn #3 (API 42-461-37553) is a well in Upton County operated by Saxum Opco LLC, completed July 15, 2012 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit (amended once), issued July 22, 2011, permitted to 10,915 ft.
It was permitted by Diamondback E&P LLC and has since transferred to Saxum Opco LLC on the wellbore schedule.
Completion filings report 3 formation tops, including Clear Fork, Strawn, Atoka.
Its lease has reported 94.2K barrels of oil and 583K mcf of gas since October 2006, last reporting in July 2026. The lease carries 3 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by Diamondback E&P LLC; the EWA schedule now lists a different operator.
- Based in
- Dallas, TX
- P-5 status
- Active (A)
- P-5 last filed
- Oct 10, 2025
- Permits on file
- 8
- Phone
- (432) 901-1082
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Saxum Opco LLC |
| Production reports | Saxum Opco, LLCthrough Apr 2026 |
| Latest permit | Windsor Permian LLCJul 22, 2011 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 10,915
- total depth, ft
- 2
- permits on file
- Jul 22, 2011
- last permit issued
- Jul 15, 2012
- completed
- 94.2K
- cumulative oil, bbl
- 583K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Oct 2006 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Jul 15, 2012
- 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; they carry 3 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Madolyn O-9-16087 | Spraberry (Trend Area) | Saxum Opco, LLC | 3 | 94.2K | 583K | Oct 2006 – Jul 2026 |
Oil, barrels lease total
Last 12 months 1,485 · prior 12 1,689(-12%)
Gas, mcf lease total
Last 12 months 11,346 · prior 12 9,521(+19%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1EXL Petroleum, LPOct 2006 → Dec 2007
- 2Windsor Energy Group, L.L.C.Jan 2008 → Feb 2010
- 3Windsor Permian LLCMar 2010 → Jun 2012
- 4Diamondback E&P LLCJul 2012 → May 2021
- 5Zarvona Energy LLCJun 2021 → Sep 2025
- 6Saxum Opco, LLCOct 2025 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 720650-98 | Drill | Diamondback E&P LLC | Sep 19, 2012 | Jul 22, 2011 | May 24, 2012 | 10,915 |
| 720650-99 | Drill | Windsor Permian LLC | Jul 20, 2011 | Jul 22, 2011 | May 24, 2012 | 10,250 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-9-16087 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 2,685 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Clear ForkCLEARFORK | 6,302 | -3,617 |
| Strawn | 10,178 | -7,493 |
| Atoka | 10,447 | -7,762 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 6,430 | 10,742 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 11.75 | 500 | 14.75 | 345 S |
| 8.625 | 4,480 | 11 | 895 S |
| 5.5 | 10,905 | 7.875 | 1,300 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 | Jul 29, 2013 | Sep 19, 2012 | 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 42-461-37553 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-461-37553 → 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/46137553, documented in the API reference.