42-451-32044

Final Completion Horizontal

ROBERTSON JOHN D. -C-

TOM GREEN County · District 7 · COMPASS OPERATING L.L.C. · SUSAN PEAK (CISCO CANYON)

Permits

6

Max Depth

5,500 ft

First Permit

1990-10-23

Latest Activity

1998-02-25

Lifespan

7 yrs

Regulatory Status

Schedule

OFF SCHEDULE

Completion

1998-02-05

Shut-In

Plugged

2018-03-20

!

EWA / Permit operator mismatch

Scheduling: COMPASS OPERATING L.L.C. ≠ Permit: COSTILLA ENERGY, INC.

Resolved via: schedulingCOMPASS OPERATING L.L.C.

Production Summary

Cum Oil

bbl

Cum Gas

mcf

First Production

1993-01

Last Production

2018-05

Lease Production

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

Formation Tops (5) Elevation 2,279 ft (GL)

CSV
FormationTop Depth (MD)Subsea (+above / −below SL)
HARKEY4,465 ft-2,186 ft
CANYON 4,486 ft-2,207 ft
UPPER STRAWN (Strawn)4,745 ft-2,466 ft
MAIN STRAWN4,845 ft-2,566 ft
ELLENBURGER 5,220 ft-2,941 ft

As reported by operators on W-2/G-1 completion filings (RRC wellbore records). Depths are measured depth; names appear as filed. Subsea = reported elevation − measured depth (negative = below sea level; vertical wellbores only). View filings & logs at RRC ↗

Perforations (3)

IntervalType
4,486–4,572 ftPerforated
4,972–5,700 ftPerforated
5,238–5,250 ftPerforated

Casing (2)

SizeSet DepthCement
9.625"509 ft240 sx
7"4,963 ft1,050 sx

Permit History (6)

Applications (6)

#473794 A COSTILLA ENERGY, INC.
received 1998-02-25
#447181 A COSTILLA PETROLEUM CORPORATION
received 1996-07-11
#447181 A COSTILLA PETROLEUM CORPORATION
received 1996-04-18
#380017 A MARATHON OIL COMPANY
received 1991-06-17
#380017 A MARATHON OIL COMPANY
received 1991-04-16
#380017 A MARATHON OIL COMPANY
received 1990-10-23

Records & Logs

6 completion filings on record · 4 with log images at RRC.

W-2/G-1 1998-03-10 log on file
W-2/G-1 1998-03-30
W-2/G-1 1997-04-02 log on file
W-2/G-1 1991-11-26 log on file
W-2/G-1 1991-11-26 log on file
W-2/G-1 1991-12-09

Completion packets open directly (post-2011 filings include attached logs). Log images can't be deep-linked — clicking copies the API for you to paste.

No GPS coordinates yet

Coordinates come from the RRC GIS backfill and usually appear within days of permit issuance. Located in TOM GREEN County.

Well Details

Well Number
28
Max Depth
5,500 ft
Drill Type
Horizontal
County
TOM GREEN
District
7
Completed
1998-02-05

Operator

Location
MIDLAND
P-5 Status
Delinquent (filed 2025-09-29)
Cum Oil (all leases)
322,539 bbl
Cum Gas (all leases)
1,400,846 mcf
Activities
OPRS/G
Total Permits
15