For me abundance thinking is about possibility thinking instead of focusing on the problem. For the example of world oil reserves scarcity thinking would be about "how can we make sure we get our piece of this pie" while abundance thinking would be "how can we eliminate our need for oil?" In that case abundance thinking would serve everyone by causing the law of attraction to put creativity into better fuel sources and solve the underlying problem.
When I first decided to become a milliionaire one thing I struggled with was I wanted to travel internationally first class. But when I discovered that a first class flight from Australia to Europe would be $15,000, I blanched. I had an attack of scarcity thinking. So what I did is look up the price of chartering an entire jet for the same trip $160-320k. Suddenly $15k looked really cheap!
Just this one thing shifted my frame of reference permanently. Now when I go shopping I no longer agonise over spending $20 like I used to. I looked up a laptop on the net I had wanted for a long time but could not allow myself to afford. It now seems like pennies and I feel so comfortable that I can buy that anytime I want. No more difficult than buying a bottle of milk.
So helpful to me to continually stretch my ideas about money through this kind of window shopping.