Yesterday, oil was back up on a weaker dollar.

Crude oil futures gained $1.66 to settle at $114.53 a barrel on the Nymex. The euro, meanwhile, inched up 0.1% against the buck, off a six-month low of $1.4630.

Energy and oil expert Byron King says investors can expect oil to continue to head northward for all the familiar reasons. Oil’s long-term fundamentals are little changed since hit spiked to $147 a barrel at the end of July. And you can now pick up resource plays in 2008 at 2005 prices…

Oil made two runs toward $150 recently, and failed both times. Now oil is in a retreat. Oil was trading near $121 earlier this week. And it appears that support at that price is crumbling. This will surely take the oil company stocks down, as well as those of the oil service companies.

Oil is the energy resource that captures public attention, but its poor cousin natural gas could be the one now offering more interesting investment opportunities.