Investor Presentaiton

Seattle WASHINGTON Unit Drilling Company Operations Footprint NORTH DAKOTA Williston Basin: (1) MONTANA BAKKEN MINNESOTA OREGON Powder River Basin: (2) WYOMING CALIFORNIA NEVADA Los Angeles San Diegoo UNIT DRILLING: COMPANY ROCKIES UTAH oLas Vegas ARIZONA Gulf o UNIT CORPORATION SOUTH DAKOTA WISCONSIN Toronto MICHIGAN Chicago Ottawa NEW Y IOWA NEBRASKA ILLINOIS PENN OHIO INDIANA: United States COLORADO KANSAS OKLAHOMA MID-CON UNIT MISSOURI Anadarko Basin: MD WEST VIRGINIA KENTUCKY VIRGINIA TENNESSEE NORTH CAROLINA SOUTH CAROLINA NEW MEXICO PERMIAN DRILLING COMPANYRKANSAS ARKLATEX- Permian Basin: (10) TEXAS MISSISSIPPI ALABAMA GEORGIA UNIT DRILLING GULF COAST COMPANY LOUISIANA OFFICE/YARD: Houston EAGLEFORD STACKED RIG: WORKING RIG: UNIT DRILLING COMPANY 14

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