That's her alright. Many thanks for that Az-gilla. There are five photos of her, accompanying that link, and all of them taken around local waters. She may be supporting the Cherry Point, Washington, refinery as a "lightening" fixture for the bigger ones coming in from Valdez.

I was under the impression that BTC had long ago become part of BP, so it was a bit of a surprise to see the old funnel again. Again, thank you.