Boasting 178 billion barrels of proven oil reserves and close to 58 Tcf of proven natural gas reserves as of 2009, Canada is the world's largest reserve holder after Saudi Arabia and the top supplier of U.S. energy imports. Canada is also home to the world's most expansive oil sands deposits, the development of which extracts and processes a heavy, tar-like crude bitumen that comprises the bulk of the country's reserves. Canada's oil and natural gas sector is privatized, with industry regulation occurring at the provincial level.
Estimating falls under the broader heading of Cost Engineering but comes at the bidding stage of projects to provide an evaluation of the possible cost of a future contract. An Estimator or Estimating Engineer will review the cost of all elements of the project in order to establish the requirements for resources, funding, budget control and revenue generated.