ROCKER B "4"

Oil · District 7C · Lease #15028

Operator: PIONEER NATURAL RES. USA, INC.

Cum Oil

40k BBL

Cum Gas

281k MCF

casinghead

Wells

8

Production

2000-10 — 2016-11

Peak Month

2001-07

Production History

Cum Oil: 39,877 BBL Cum Gas: 280,703 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

459 BBL/mo

Di (annual)

25.1%

b-factor

0.0

EUR

21,940 BBL

R-squared

0.727

type

exponential

Operator History (from monthly production reports)

2008-01 — 2026-07 PIONEER NATURAL RES. USA, INC. 223 mo
2006-05 — 2007-12 CIMAREX ENERGY CO. OF COLORADO 20 mo
2004-11 — 2006-04 GRUY PETROLEUM MANAGEMENT CO. 18 mo
2000-10 — 2004-10 NADEL AND GUSSMAN PERMIAN,L.L.C. 49 mo

Wells (8)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
125PIONEER NATURAL RES. USA INC.18,2002006-01-09
106PIONEER NATURAL RES. USA INC.17,0001996-11-25
83PIONEER NATURAL RES. USA INC.16,9001979-11-20
2842-383-30162PIONEER NATURAL RES. USA INC.------
3142-383-30165PIONEER NATURAL RES. USA INC.------
3242-383-30131PIONEER NATURAL RES. USA INC.------
3342-383-30133PIONEER NATURAL RES. USA INC.------
3542-383-30144PIONEER NATURAL RES. USA INC.------