ROCKER B "QQ"

Oil // district 9 // lease#14621

op: PIONEER NATURAL RES. USA, INC.

cum_oil

50k BBL

cum_gas

0 MCF

wells

3

production

1997-07 — 2013-02

peak_month

1997-08

-- production_history

cum_oil: 49,762 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

781 BBL/mo

Di (annual)

24.8%

b-factor

0.4

EUR

58,703 BBL

R-squared

0.633

type

hyperbolic

-- wells (3)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
4GRUY PETROLEUM MANAGEMENT CO.17,4002006-03-23
2HUGOTON ENERGY CORPORATION17,2001997-10-16
1HUGOTON ENERGY CORPORATION16,7001997-06-20
EOF // data source: Texas Railroad Commission // 2026