(EnergyAsia, June 23) — Thailand’s state oil and gas company PTT Public Company Limited (PTT) said it has issued Bt4.04 billion worth of unsubordinated unsecured bond with 10 years maturity. (US$1=Bt43).   The bond, issued to institutional investors on June 20, carries 4.75% fixed yield. Standard Chartered Bank (BKK Branch) was appointed the underwriter. PTT…