426
b. Horizontal Common-Size
For the Years Ended December 31
2010
Sales and other operating revenues
Unaffiliated customers
Inter-company
Total revenues
Cost and expenses
Production expenses, including
related taxes
Exploration expenses, including
dry holes and lease impairment
General, administrative and other expenses
Depreciation, depletion and amortization
Results of operations before income taxes
Provision for income taxes
c. Comment on the Common-Size Analysis in (a) and (b)
Comments on Vertical Common-Size
material fluctuation in results of operations.
Comments on Horizontal Common-Size
Three areas contribute substantially to revenues from unaffiliated customers (Africa,
United States, and Europe).
expenses.
Africa and United States have the largest amount of total costs and expenses.