[Laurent.w]

Using the most expensive oil is counterproductive.

Bernstein Research estimated that the non-Opec marginal cost of production - the cost of production for the most expensive new fields - rose to $104.50 a barrel in 2012, up more than 250% from $30 a barrel in 2002.
Using very expensive drillings helps oil to remain very expensive and helps OPEC to earn a lot of money.
For every $10 increase per barrel of oil price, OPEC's earnings soar by $100 billion per year.
Instead of using very expensive drillings in order to produce half a dozen million barrels of oil per day, it would be a better idea to save this oil.
Then, we could expect to see oil prices below $70.

[tx_eggman]

Instead of using very expensive drillings in order to produce half a dozen million barrels of oil per day, it would be a better idea to save this oil.
Then, we could expect to see oil prices below $70.

Let me get this straight .. you're saying that not using very expensive drillings in order to produce half a dozen million barrels of oil per day ... which ipso facto reduces supply by half a dozen million barrels of oil per day ... would lower the cost of oil to below $70 per barrel..

You're either unclear about how supply and demand works or about simple math .. maybe both.