There are a couple about leaving fishing for the oil. I believe Stan Rogers did one Free in the Harbour. In the introduction he talks about how there are more Newfoundlanders in Edmonton than in St. John, there to work the oilrigs. The song's on his Northwest Passage album. There's also a lovely one that I heard on the radio (and taped and wrote lyrics out to).
Between the beggar's mantle and the Lights o' Peterhead,
The fisherfolk were heroes and the herring was the creed.
The herring paid the factor and the herring fed the wains (we uns?)
But now the herring's gone and the fishing's no the same.
The likes o' me was put to sea as soon as I could stand,
Tae catch the silver darlings for the folk upon the land.
With half a mile o' net between the bottom and the keel,
And half a score o' years between the cradle and the creel.
And among the rigs o' barley, among the rigs o' rye,
Among the rigging o' the masts all dark against the sky,
But the lads who used to work them all, they've gone for better pay,
And the rigs that work the oil are all the rigs you'll see today.
So dinna blame the fisher folk for taking to the oil,
For if they couldna find the fish, they'd nothing for their toil,
And there's still as many families and as many mouths to feed
Between the beggar's mantle and the lights o' Peterhead.
HTML line breaks added. --JoeClone, 9-Oct-02.