Not strictly oil & gas, but something near and dear.
Dateline 2011-12-11:
What do water and oil have in common? How we use both shows how much further we have to go as a country.
IT’S the rainy season again, and with every downpour, the first thing that goes through my mind is this: in a country where rain can bring traffic to a standstill, why do we even have to contemplate water shortages?
Although most people don’t perceive that as a crisis at the moment, it is a problem recognised by many in the industry (Malaysia faces looming water crisis, Ecowatch, March 22). In fact, the recent court case between Syabas, the Selangor water company, and the Selangor State Government is only the tip of the iceberg of the water situation in Malaysia.
…
Wata - Malaysian Oil and Gas Engineer 
Earth is 71% water. Only a minuscule amount is safe for drinking.
Even the rain water that causes standstill traffic is not safe for drinking.
The writer’s simple answer of Economics, rain water harvesting is crap. Water harvested from the rain harvester is not safe for drinking, and most likely gonna be use for washing car and water your gardens. You could probably use it to bath, if you want to get rashes and skin diseases.
The correct answer is how to efficiently manage a water treatment plant. Singapore is doing just fine with their shitty water.
Efficiency is about how you do more with less. People tend to be more efficient when they’re in a tight spot. For example the Japanese. Literally no oil, prone to natural disaster country, but they live on. Africa and Middle East on the other hand is the opposite, literally they have everything but ain’t going nowhere.
The only time we are going to see Malaysians at their peak efficiency, will be when our oil ran out.
Even If the current government remove all the subsidies now, we will never be efficient. Why? We will just vote the next person who can give back the subsidies next term.