i california energy comision natural gas assessment update s t a f r e p o february 205 cec 60 03 arnold schwarzeneger governor acknowledgements we d like to thank the folowing individuals who participated in preparing this report aspen environmental group technical team included suzane phiney env heather stiles and leigh hagan comission staf members mary dyas mike purcel bil wod leon brathwaite jim fore jairam gopal jacque gilbreath tery rose editing embers were rosela shapiro claudia chandler susane garfield rob schlichting ii table of contents executive sumary iv chapter 1 use consumption by residential comercial customers industrial 6 consuption for electricity generation 9 as transportation fuel total demand 12 2 dependence on imports 13 suplies are delivered interstate pipelines 14 faces increased competition wil increase 16 us production has flatened canadian buble 18 producing remaining north american