"When you need us, we'll be here." Animal Emergency Center is Tulsa's most established and experienced emergency clinic for pets. We are open 24 hours a day to care for your sick and injured pet. AEC is a VECCS Level II Certified Facility, meeting and exceeding the highest standards of Emergency and Critical Care. Services also include endoscopy and laparoscopy surgery, advanced cat and dog cancer services, and ophthalmology services.