There is a great article in the Washington and Lee Journal of Energy, Climate, and the Environment about lessons unlearned from the Deepwater Horizon disaster. Checkout the article by Mark Davis about the Legacy of Deepwater Horizon.

Risk Philosophy
My personal risk philosophy is, keep it simple, be sensitive to your surroundings so you can quickly adapt to the changing environment, stay focused on the most important objectives and most importantly follow a disciplined approach and don't get distracted by all the noise in the environment.