As a politically stable and developed nation with mature infrastructure, large pipeline networks and rail transport in place for the transportation of oil and gas, the United States provides one of the most attractive environments for oil and gas companies in the world. The US oil and gas scene is a particularly favourable environment for small operators, thanks to a peculiar system of property rights in the USA. 1 (See "Federal, State and Fee Leases" section below) Given this, it is unsurprising to find that a number of listed Australian energy companies have gravitated towards the onshore oil and gas fields of the US.