GRANT-MCDOUGAL UNIT

Oil // district 3 // lease#21775

op: WILLIAMS, CLAYTON W., JR., INC.

cum_oil

187k BBL

cum_gas

0 MCF

wells

2

production

1993-01 — 2014-02

peak_month

1993-06

-- production_history

cum_oil: 187,217 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

4,280 BBL/mo

Di (annual)

33.8%

b-factor

0.1

EUR

168,639 BBL

R-squared

0.738

type

hyperbolic

-- wells (2)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1WILLIAMS, CLAYTON W., JR., INC.18,1051992-09-10
1UWILLIAMS, CLAYTON W., JR., INC.18,1051992-09-10
EOF // data source: Texas Railroad Commission // 2026