Mexican state oil company Petroleos Mexicanos (Pemex) said on Tuesday its board has approved the creation of a new subsidiary to sell petroleum products, gas and petrochemicals domestically. Register for FREE to continue using Reuters.com Free registration gives you access to: Unmatched, global, round-the-clock news Hand-picked insights that are easy to find and use Our Daily Briefing newsletter, delivering the day"s headlines right to your inbox Already registered? Sign in