SCHAEFER, C. E. SR.

Oil · District 7C · Lease #6172

Operator: TAMARACK PETROLEUM COMPANY, INC.

Cum Oil

54k BBL

Cum Gas

542k MCF

casinghead

Wells

3

Production

1993-01 — 2021-03

Peak Month

2013-08

Production History

Cum Oil: 54,164 BBL Cum Gas: 541,572 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

1,040 BBL/mo

Di (annual)

86.3%

b-factor

0.5

EUR

27,626 BBL

R-squared

0.794

type

hyperbolic

Operator History (from monthly production reports)

2021-02 — 2021-10 PIONEER NATURAL RES. USA, INC. 9 mo
2017-03 — 2021-01 PARSLEY ENERGY OPERATIONS, LLC 47 mo
2010-12 — 2017-02 APACHE CORPORATION 75 mo
2007-12 — 2010-11 MARINER ENERGY, INC. 36 mo
1993-01 — 2007-11 TAMARACK PETROLEUM COMPANY, INC. 179 mo

Wells (3)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
3PIONEER NATURAL RES. USA INC.18,0752013-02-05
4TMPIONEER NATURAL RES. USA INC.19,0002006-03-27
142-383-30278PIONEER NATURAL RES. USA INC.------