Whiting adds production growth with wellbore production agreement. EQT acquires Marcellus West Virginia acres from Statoil for US$407 million. Ultra Petroleum and Midstates Petroleum file for Chapter 11 bankruptcy. Halliburton to pay Baker Hughes US$3.5 billion breakup fee after merger talks collapse. Indigo Minerals acquires non-producing acres in Cotton Valley and Haynesville area.