42-137-30697

PRODUCING

MAYFIELD STANLEY B.

EDWARDS County · District 7 · UPP OPERATING LLC · M. M. W. (CANYON)

RRC Lookup

Permits

Max Depth

4,500 ft

First Permit

1978-08-11

Latest Activity

1978-08-11

Lifespan

< 1 yr

Regulatory Status

Schedule

ON SCHEDULE

Completion

1978-10-27

Shut-In

—

Plugged

—

P-5 Org Status: Delinquent

EWA / Permit operator mismatch

Scheduling: UPP OPERATING LLC ≠ Permit: AMOCO PRODUCTION COMPANY

Resolved via: production → UPP OPERATING, LLC

Production Summary

Cum Oil

— bbl

Cum Gas

— mcf

First Production

1993-01

Last Production

2026-03

Operator History

Chain of Custody

GRAHAM ROYALTY, LTD. 1993-1993→ DREYFUS, LOUIS NATURAL GAS CORP 1993-2001→ DOMINION OKLAHOMA TEXAS E&P, INC 2001-2007→ HIGHMOUNT EXPL & PROD TEXAS LLC 2008-2014→ ENERVEST OPERATING, L.L.C. 2014-2019→ UPP OPERATING, LLC 2019-2025

Lease Production

Production is reported at the lease level. View production data, decline curves, and history on the lease page.

Gas

production & DCA →

Permit History (1)

#30499 Drill

MAYFIELD, STANLEY B. · 4,500 ft

1978-08-11

Spud 1978-09-04

Permit Applications (1)

#30499 A AMOCO PRODUCTION COMPANY

received 1978-08-11

Well Details

Well Number: 17
Max Depth: 4,500 ft
Drill Type: Vertical
County: EDWARDS
District: 7
Operator: UPP OPERATING LLC
Completed: 1978-10-27

Operator

Name: UPP OPER, LLC
Location: HOUSTON
P-5 Status: Y (filed 2025-12-04)
Cum Oil (all leases): 283,339 bbl
Cum Gas (all leases): 469,977,648 mcf
Activities: CSGD/G, CSGD/P, G/PUR, GTHS/G, OPRS/G, OPRS/O
Total Permits: 33

External Links

RRC Wellbore Query →