42-371-32646

YATES FIELD UNIT

PECOS County · District 8 · MARATHON OIL COMPANY

Permits

Max Depth

1,699 ft

First Permit

1978-10-19

Latest Activity

1978-10-24

Lifespan

< 1 yr

Regulatory Status

Schedule

OFF SCHEDULE

Completion

—

Shut-In

—

Plugged

—

Production Summary

Cum Oil

— bbl

Cum Gas

— mcf

First Production

1993-01

Last Production

2026-07

Operator History

Chain of Custody

MARATHON OIL COMPANY 1993-2003→ KINDER MORGAN SACROC LP 2003-2003→ KINDER MORGAN PRODUCTION CO LP 2003-2007→ KINDER MORGAN PRODUCTION CO LLC 2007-2026

Lease Production

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

Oil

production & DCA →

Formation Tops (7) Elevation 2,799 ft (GL)

CSV

Formation	Top Depth (MD)	Subsea (+above / −below SL)
BASE CRETACEOUS (Base Cretaceous (marker))	716 ft	+2,083 ft
YATES (SMITH SAND) (Yates)	917 ft	+1,882 ft
YATES SMITH SAND (Yates)	917 ft	+1,882 ft
SEVEN RIVERS	998 ft	+1,801 ft
QUEEN	1,450 ft	+1,349 ft
GRAYBURG	1,486 ft	+1,313 ft
SAN ANDRES	1,536 ft	+1,263 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 (4)

Interval	Type
1,399–1,649 ft	Perforated
1,399–1,714 ft	Perforated
1,714–1,759 ft	Perforated
1,759–1,799 ft	Perforated

Casing (3)

Size	Set Depth	Cement
13.375"	949 ft	940 sx
8.625"	1,399 ft	640 sx
2.875"	1,648 ft	—

Permit History (2)

#35403 Drill

YATES FIELD UNIT · 1,699 ft

1978-10-24

#35133 Drill Final Completion

YATES FIELD UNIT · 1,699 ft

1978-10-19

Spud 1978-11-25

Applications (2)

#35403 A MARATHON OIL COMPANY

received 1978-10-24

#35133 A MARATHON OIL COMPANY

received 1978-10-19

Records & Logs

3 completion filings on record · 1 with log images at RRC.

W-2/G-1 1998-01-22 log on file

W-2/G-1 1995-09-06

W-2/G-1 1979-02-20

Completion packets + logs ↗ Wellbore filings ↗

Completion packets open directly (post-2011 filings include attached logs). Log images and the UL library 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 PECOS County.

Well Details

Well Number: 36A20
Max Depth: 1,699 ft
Drill Type: Vertical
County: PECOS
District: 8
Operator: MARATHON OIL COMPANY

Operator

Name: MARATHON OIL CO
Location: HOUSTON
P-5 Status: Active (filed 2025-08-14)
Cum Oil (all leases): 183,150,113 bbl
Cum Gas (all leases): 1,013,063,895 mcf
Activities: CSGD/P, G/PUR
Total Permits: 3,707