Refining and production are, for the most part, separate activities — they don't benefit much from integration in the physical sense (oil sands upgrading from mines is a bit of an exception, since the waste heat from the upgrader can feed the extraction plant). (andrewleach.ca)
Oh, BTW, on all the graphs exploring this, oddly, North America tends to be a bit of an exception on some of this. (nakedpastor.com)
I happen to LOVE Christmas, particularly because it was originally a Pagan Holiday (Winter Solstice) I do take a bit of an exception to your tone, mainly because you don't know me or anything about me. (religion.blogs.cnn.com)