FIRST NATIONAL BANK -A-

Oil // district 13 // lease#16134

op: ROSS, DWIGHT M. DRLG. CO., INC.

cum_oil

24k BBL

cum_gas

0 MCF

wells

6

production

1993-01 — 2026-03

peak_month

2014-08

-- production_history

cum_oil: 24,002 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

365 BBL/mo

Di (annual)

277.7%

b-factor

1.2

EUR

10,651 BBL

R-squared

0.820

type

hyperbolic

-- wells (6)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
2AROSS, DWIGHT M. DRLG. CO., INC.13,9002001-06-20
1ROSS, DWIGHT M. DRLG. CO., INC.23,8101998-11-23
1WROSS, DWIGHT M. DRLG. CO., INC.23,8101998-11-23
5AROSS, DWIGHT M. DRLG. CO., INC.13,8001994-07-07
442-337-82572--------
4A42-337-82572--------
EOF // data source: Texas Railroad Commission // 2026