looking at alberta oil patch

hi, I have many years trucking exp. I have been overseas for several years doing contract work , im looking to head back , im most interested in Alberta's oil patch . I understand most drilling company's sub out crude and fluid hauling , I have been able to get lots of info on drilling but not the hauling company's , ive got lots of exp. in tanker , flatbed , and heavy haul . I have come to understand most company's want a front door appearance , but its a big move for me , I would like to hear a voice on the phone and a place to start knocking. i'm currently working on all my cert's and hope to have all before going . what I would like to know is what they are looking for to put me on the road when I show up . any advice would be greatly appreciated thank.