Tim Zenk, of Sapphire Energy, said the deal with Tesoro is “a big step, and this is a validation that renewable crude oil is viable on the market and works with the existing pipelines of oil production.”

Tim Zenk, of Sapphire Energy, said the deal with Tesoro is “a big step, and this is a validation that renewable crude oil is viable on the market and works with the existing pipelines of oil production.”

It might just seem like a drop in the bucket — but San Diego-based Sapphire Energy Inc...

Take 1 minute to subscribe and you'll get this story immediately, plus:

Already a subscriber? Sign in

  • 52 weekly issues
  • Subscriber-only digital content every business day, plus full access to SDBJ.com archives
  • Book of Lists — the most comprehensive business resource in San Diego
  • San Diego 500 — influential business leaders you need to know
Yours for only $129