CMI (SPRABERRY) UNIT

Oil // district 11 // lease#66543

op: STEPHENS, AUTRY C.

cum_oil

114k BBL

cum_gas

0 MCF

wells

7

production

1993-01 — 2022-02

peak_month

1993-03

-- production_history

cum_oil: 114,035 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

2,678 BBL/mo

Di (annual)

46.9%

b-factor

0.3

EUR

97,136 BBL

R-squared

0.819

type

hyperbolic

-- wells (7)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
6034R K PETROLEUM CORPORATION17,9001982-02-19
6122CHALLENGER MINERALS INC.27,9001981-10-30
6132CHALLENGER MINERALS INC.18,0001981-07-22
6133R K PETROLEUM CORPORATION17,8801981-05-14
6123R K PETROLEUM CORPORATION17,9151981-03-03
6131CHALLENGER MINERALS INC.18,0001981-01-23
6121CHALLENGER MINERALS INC.18,5001980-10-10
EOF // data source: Texas Railroad Commission // 2026