SIOSI OIL COMPANY, AN OKLAHOMA COMPANY

1. SECTION 1423(C) OF THE SAFE DRINKING WATER ACT ( SDWA ), 42 U.S.C. 300H-2(C). 2. SIOSI OIL COMPANY, AN OKLAHOMA COMPANY P.O. BOX 702163 TULSA, TULSA COUNTY, OKLAHOMA 74170 FACILITIES: 24 CLASS II WELLS IN OSAGE COUNTY, OKLAHOMA INV. NO. WELL NO. LOCATION OS4544 75 NW/4, SEC. 19, T23N, R12E OS3509 49 NE/4, SEC. 19, T23N, R12E OS3940 128 NE/4, SEC. 19, T23N, R12E OS3939 129 NE/4. SEC. 19, T23N, R12E OS4536 T-1 NE/4, SEC. 24, T23N, R12E OS3534 52 NE/4, SEC. 19, T23N, R12E OS3537 74 NE/4, SEC. 19, T23N, R12E OS3538 125 NE/4, SEC. 19, T23N, R12E OS3539 126 NE/4, SEC. 19, T23N, R12E OS3540 127 NE/4, SEC. 19, T23N, R12E OS3934 45 NE/4, SEC. 19, T23N, R12E OS3935 137 NE/4, SEC. 19, T23N, R12E OS3936 136 NE/4, SEC. 19, T23N, R12E OS3937 131 NE/4, SEC. 19, T23N, R12E OS4541 55 NE/4, SEC. 19, T23N, R12E OS4542 59 NE/4, SEC. 19, T23N, R12E OS4538 38 NE/4, SEC. 19, T23N, R12E OS3933 121 SE/4, SEC. 19,