Full Gameplay Walkthrough...

Complete the indicated task to unlock the achievement.

Achievement	How to unlock
BOSS	Hire your first employee.
BUSINESSMAN	Sell ??50 barrels of oil.
CLEAN HOUSE	Clean up the house.
CONSTRUCTOR	Build your first derrick.
DONKEY JUMP!	Jump over a rolling barrel.
ENGINEER	Build three derricks.
FIRST SALE	Sell ??your first barrel of oil.
GOD OF OIL	Sell ??1000 barrels of oil.
KING OF OIL	Sell ??500 barrels of oil.
LORD OF OIL	Sell ??100 barrels of oil.
LUMBERJACK	Cut down the first tree.
RICH MAN	Collect a $50000.