BDO Canada LLP – Petrolia Sarnia Chamber Member Chartered Accountants. Contact Info Phone: 519-882-3333 Fax: 519-882-2703 Location 4495 Petrolia Line PO Box: 869 Petrolia, ON N0N 1R0 View Map Online www.bdo.ca P/T Employees: 1 F/T Employees: 1 Key Contact: -- NAICS Code: 54121 - Accounting, tax preparation, bookkeeping and payroll services Site Selector Map: View location