Even though people the world over instinctively recoiled as reports came in of Gadhafi's violent retaliation against Libyan protests on February 21, 2011, the official reaction from the US Government was muted at best. The refusal to act on an intuitive response to immediately remove the Libyan dictator's ability to wantonly kill people resisting his right to rule may have come from concerns that the mounting tumult of a change of government in a major oil-producing region of North Africa could cause even just a disruption in the supply of crude. Indeed, even the mere possibility was prompting a spike in the price of oil (and gas)--what one might call a risk premium. Even the prospect of an ensuing nasty electoral backlash from consumers having to face a possible increase in their largely non-discretionary gas expense was not lost on their elected representative in chief at the White House.
The full essay is at "The Case of Libya."