Monday Mid-Year Federal Tax Update: Seminar sponsored by the Houston TSCPA Foundation. 8:30 a.m.-4:45 p.m., 777 Post Oak Blvd., No. 500. Speaker: Steven Tillinger, CPA. Cost: $225-$275. Information: 713-622-7733 or www.houstoncpa.org. Tuesday French American and Netherlands American Chambers of Commerce: Mixer. 6-8 p.m., Tango and Malbec, 2800 Sage. Information: info@facchouston.com or 713-985-3280. Energy Conference: Sponsored by the Houston TSCPA Foundation.