<p>I've heard that the oilfield services companies (Halliburton/Schlumberger) are substantially different in terms of benefits/pay than the big oil companies (Exxon/Chevron/Conoco/Shell), to the point where salaries in oil services may even be lower than nationwide engineering averages in some cases.</p>
<p>If a person was to get on with one of the oilfield services companies, how attractive of a candidate would that make them to the big oil companies 3+ years down the road if they wanted to transition into that industry? Would previous experience in oil services open major doors into the big oil industry?</p>