Why don't you ask the headhunter yourself?
All I can say is that the oil-gas sector are among the, if not THE best employer in Qatar in term of compensation.

However I heard rumor that among the multinational oil co's (the like of BP, Shell, ConocoPhillip and Total) Maersk pay scale is somewhat on the lower side of the scale.
As with other rumor, I don't know whether this one is true or not.....

Cheers
SK