This does not strike me as pertinent to the causes of the Iraq war, but it does show that the invasion was not conducted entirely obliviously to the interests of British oil companies:
Whereas BP was insisting in public that it had "no strategic interest" in Iraq, in private it told the Foreign Office that Iraq was "more important than anything we've seen for a long time".
BP was concerned that if Washington allowed TotalFinaElf's existing contact with Saddam Hussein to stand after the invasion it would make the French conglomerate the world's leading oil company. BP told the Government it was willing to take "big risks" to get a share of the Iraqi reserves, the second largest in the world.
Over 1,000 documents were obtained under Freedom of Information over five years by the oil campaigner Greg Muttitt. They reveal that at least five meetings were held between civil servants, ministers and BP and Shell in late 2002.