Bill Marko, chief operating officer of asset-divestment firm OGJE/Madison Energy Advisors, Houston, has joined asset-divestment, consulting and capital-sourcing firm Randall & Dewey Inc., Houston, in it's A&D practice as a managing director, business development.

Stellar Energy Advisors Ltd., London, has teamed with PetroAdvisor AS, Oslo, to provide specialist acquisition, divestment and strategic services to the Norwegian upstream transaction market.

Wells Fargo Energy Advisors' Miles Redfield and Doug Perley will open a Houston office of Calgary-based investment-banking and asset-divestment firm Tristone Capital Inc.