COLLINS -A-

Oil · District 08 · Lease #28445

Operator: PIONEER NATURAL RES. USA, INC.

Cum Oil

38k BBL

Cum Gas

165k MCF

casinghead

Wells

3

Production

1993-01 — 2016-11

Peak Month

1995-05

Production History

Cum Oil: 38,176 BBL Cum Gas: 165,173 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

280 BBL/mo

Di (annual)

9.9%

b-factor

0.5

EUR

48,230 BBL

R-squared

0.817

type

hyperbolic

Operator History (from monthly production reports)

1997-09 — 2026-07 PIONEER NATURAL RES. USA, INC. 347 mo
1995-03 — 1997-08 PARKER & PARSLEY DEVELOPMENT L.P 30 mo
1993-01 — 1995-02 PARKER & PARSLEY DEVELOPMENT CO. 26 mo

Wells (3)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
3DPIONEER NATURAL RES. USA INC.15,9001986-06-09
2DPIONEER NATURAL RES. USA INC.15,0001984-05-22
1PIONEER NATURAL RES. USA INC.19,5501983-09-22