ROCKER B '13'

Oil · District 7C · Lease #14679

Operator: PIONEER NATURAL RES. USA, INC.

Cum Oil

107k BBL

Cum Gas

523k MCF

casinghead

Wells

6

Production

1997-10 — 2025-08

Peak Month

2012-12

Production History

Cum Oil: 107,207 BBL Cum Gas: 522,850 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

1,763 BBL/mo

Di (annual)

53.7%

b-factor

0.4

EUR

64,018 BBL

R-squared

0.814

type

hyperbolic

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
1999-10 — 2004-10 NADEL AND GUSSMAN PERMIAN,L.L.C. 61 mo
1998-04 — 1999-09 CHESAPEAKE OPERATING, INC. 18 mo
1997-10 — 1998-03 HUGOTON ENERGY CORPORATION 6 mo

Wells (6)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
9PIONEER NATURAL RES. USA INC.19,7002011-07-26
6PIONEER NATURAL RES. USA INC.29,7002011-03-30
8PIONEER NATURAL RES. USA INC.29,7002010-06-25
4PIONEER NATURAL RES. USA INC.17,2001997-10-16
2PIONEER NATURAL RES. USA INC.17,2001997-08-27
3PIONEER NATURAL RES. USA INC.17,2001997-08-27