Here is a game changer. The natural gas market is about to become an export market. The U.S. has abundant natural gas and now two companies plan to take advantage of the opportunity, as reported in the Wall Street Journal (subscription required).

First we have privately owned Freeport LNG Development, working with Australian Macquarie Group (MQBKY), expecting to receive export permits. The company has an import terminal and it plans to add the equipment that will allow it to export as well.

"Cheniere Energy Partners, LP. (CQP), a master limited partnership, is the owner and operator of the Sabine Pass LNG receiving terminal in Cameron Parish; the 853 acre facility is in a prime location with vast LNG capacity," notes income specialist Bryan Perry.

The editor of The Cash Machine explains, " The regasification ability of the terminal is about 2.6 billion cubic feet per day, and it can store about 10.1 billion cubic feet of LNG. That sounds like a lot -- and it is -- but CQP wants the Sabine Pass LNG to expand capacity even more. So in April of 2008, the company began its expansion project.

Cheniere Energy (AMEX: LNG) builds liquefied natural gas terminals and natural gas pipelines. It is a smaller energy company that also participates in oil and gas exploration and development in the Gulf of Mexico.

Should oil continue on its current trajectory, demand for natural gas will increase at a greater rate. LNG suffered from increased competition from larger players that entered the space when oil prices were rocketing higher and a large amount of debt on its balance sheet. The credit crisis pushed shares to the brink, but retirement of certain notes in exchange for common stock reduces LNG's interest expense and provides liquidity for the foreseeable future.

With oil prices heading to $70 or more, owning oil stocks is a must for any investor looking to generate maximum returns.

Crude traders are betting that a stronger economy will result in increased demand for oil. At the same time, OPEC is holding firm on production cuts that reduces supply.

And let's not forget about the summer driving season which officially kicks off this Memorial Day weekend.

All of these factors mean investors can confidently operate under the assumption that oil prices will go up in the foreseeable future.