CRUMP ESTATE "A"

Oil // district 11 // lease#65535

op: SANDRIDGE EXPL. AND PROD., LLC

cum_oil

227k BBL

cum_gas

0 MCF

wells

7

production

1993-01 — 2011-02

peak_month

1993-01

-- production_history

cum_oil: 227,031 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

2,044 BBL/mo

Di (annual)

13.6%

b-factor

1.1

EUR

387,090 BBL

R-squared

0.847

type

hyperbolic

-- wells (7)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
2WSPETROLEUM TECHNICAL SERVICES CO.27,6502002-07-22
9PETROLEUM TECHNICAL SERVICES CO.14,8002001-05-15
8PETROLEUM TECHNICAL SERVICES CO.14,8001991-10-08
7PETROLEUM TECHNICAL SERVICES CO.14,8001991-03-19
6PETROLEUM TECHNICAL SERVICES CO.14,8001990-12-14
5PETROLEUM TECHNICAL SERVICES CO.14,8001987-10-15
4PETROLEUM TECHNICAL SERVICES CO.14,9501985-09-09
EOF // data source: Texas Railroad Commission // 2026