Keith and Dave,
here are some proposed triangle trades

Socal Apr 02-Oct 02   +0.045 2/d
MS sells to Enron; Enron sells to BP; BP sells to MS

NW Rockies  Nov 02-Oct 03  -0.41  1/d
Enron sells to MS; MS sells to BP; BP sells to Enron

HSC  Jan 02-Mar 02   -0.035  2/d
Enron sells to MS; MS sells to BP; BP sells to Enron

Permian   Dec 01   -0.22  1/d
MS sells to Enron; Enron sells to BP; BP sells to MS

Permian Jan 02-Mar 02   -0.23   0.5/d
MS sells to Enron; Enron sells to BP; BP sells to MS

Sumas   Dec 01   -0.09   1/d
MS sells to Enron; Enron sells to BP; BP sells to MS

Sumas Feb 02-Mar 02  1/d  -0.23  1/d
MS sells to Enron; Enron sells to BP; BP sells to MS