It's an adaptation of a single chapter in Sinclair's "Oil," but I've no idea if it's otherwise divergent of the contents of that chapter.
To each his own, my friends. I LOVED There Will Be Blood and I was hardly alone. I was only kidding when I put Snowflake down for poor taste (but never kidding when I do the same to Gemini Cricket, heheh)
VIVA LA DIFFERENCE!