WALKER-BUCKLER TRUST /TR 15/

Oil // district 8 // lease#8715

op: KEATING ENERGY, INC.

cum_oil

51k BBL

cum_gas

0 MCF

wells

2

production

1993-01 — 2026-03

peak_month

2000-10

-- production_history

cum_oil: 51,451 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

481 BBL/mo

Di (annual)

30.0%

b-factor

0.7

EUR

41,550 BBL

R-squared

0.695

type

hyperbolic

-- wells (2)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1KEATING ENERGY, INC.44,6751997-08-14
2GULF OIL CORP.14,6161980-01-17
EOF // data source: Texas Railroad Commission // 2026