Western Energy Services Corp. is a Canada-based oilfield service company. The Company is focused on three core business lines: contract drilling, well servicing and oilfield rental equipment services. It operates in the oilfield service industry through its contract drilling segment in Canada and the United States, and through its production services segment in Canada. The Contract drilling segment includes drilling rigs along with related ancillary equipment and provides services to oil and natural gas exploration and production companies. The Production services includes well servicing rigs and related equipment, as well as oilfield rental equipment and provides services to oil and natural gas exploration and production companies and in the case of oilfield rental equipment, to other oilfield service companies as well. It provides contract drilling services through its division, Horizon Drilling in Canada, and its subsidiary, Stoneham Drilling Corporation, in the United States.