When a Hazard Identification (HAZID) exercise is conducted, a multi-skilled team of experienced persons come up with credible hazards that could have a safety, health or environmental (SHE) impact.
One thing that you may forget, if you have a large, onshore facility is that in the process of creating your cash cow (aka plant/ facility), you may have impacted the local ecology to a large extent.
I have the privilege of watching what may go wrong if a HAZID hazard is not addressed properly. Look here and here.
Yes, this is not in Malaysia, but I was there. So there.
Wata - Malaysian Oil and Gas Engineer 