| $150,000–350,000 | OCEAN DENTAL, CHAD HOECKER, DDS, PC | OKLAHOMA CITY, OK | BancFirst |
| $350,000–1 million | OCEAN DENTAL, PC | OKLAHOMA CITY, OK | BancFirst |
| $350,000–1 million | OK MACHINE AND MANUFACTURING COMPANY INC. | Tulsa, OK | BancFirst |
| $350,000–1 million | OKC METRO ALLIANCE | OKLAHOMA CITY, OK | BancFirst |
| $350,000–1 million | OKC METRO ALLIANCE INC. | Oklahoma City, OK | BancFirst |
| $2–5 million | OKLAHOMA BAPTIST UNIVERSITY | SHAWNEE, OK | BancFirst |
| $350,000–1 million | OKLAHOMA CHILLER CORPORATION | TULSA, OK | BancFirst |
| $150,000–350,000 | OKLAHOMA CITY EQUINE CLINIC PC | OKLAHOMA CITY, OK | BancFirst |
| $350,000–1 million | OKLAHOMA CONTEMPORARY | Oklahoma City, OK | BancFirst |
| $350,000–1 million | OKLAHOMA CONTEMPORARY ARTS CENTER | OKLAHOMA CITY, OK | BancFirst |
| $350,000–1 million | OKLAHOMA CYCLES | SHAWNEE, OK | BancFirst |
| $5–10 million | OKLAHOMA FARM BUREAU MUTUAL INSURANCE CO. | OKLAHOMA CITY, OK | BancFirst |
| $150,000–350,000 | OKLAHOMA HALL OF FAME | OKLAHOMA CITY, OK | BancFirst |
| $150,000–350,000 | OKLAHOMA HALL OF FAME INC. | Oklahoma City, OK | BancFirst |
| $350,000–1 million | OKLAHOMA HEALTHCARE SERVICES, INC. | BROKEN ARROW, OK | BancFirst |
| $350,000–1 million | OKLAHOMA LUBE ASSOCIATES LP | OKLAHOMA CITY, OK | BancFirst |
| $350,000–1 million | OKLAHOMA NATIONAL STOCK YARDS COMPANY | OKLAHOMA CITY, OK | BancFirst |
| $150,000–350,000 | OKLAHOMA PREMIER SIGN COMPANY LLC | OKLAHOMA CITY, OK | BancFirst |
| $1–2 million | OKLAHOMA ROOFING & SHEET METAL LLC | OKLAHOMA CITY, OK | BancFirst |
| $350,000–1 million | OKLAHOMA RURAL WATER ASSOCIATION | Oklahoma City, OK | BancFirst |
| $1–2 million | OKLAHOMA STATE FAIR | Oklahoma City, OK | BancFirst |
| $1–2 million | OKLAHOMA STATE FAIR, INC | OKLAHOMA CITY, OK | BancFirst |
| $350,000–1 million | OKLAHOMA STATE SCHOOL BOARDS ASSOCIATION INC. | Oklahoma City, OK | BancFirst |
| $150,000–350,000 | OKLAHOMA STATE SCHOOL BOARDS ASSOCIATION INC. | OKLAHOMA CITY, OK | BancFirst |
| $150,000–350,000 | OLD MILTON SENIOR HOLDING LLC | ALPHARETTA, GA | BancFirst |
| $150,000–350,000 | OLD MILTON SENIOR HOLDING LLC | Alpharetta, GA | BancFirst |
| $150,000–350,000 | ONE ELECTRIC LLC | OKLAHOMA CITY, OK | BancFirst |
| $350,000–1 million | ONTRACK HR LLC | ADDISON, TX | BancFirst |
| $1–2 million | OPS SALES COMPANY | DEWEY, OK | BancFirst |
| $150,000–350,000 | ORIGIN RESOUCE GROUP HOLDINGS, LLC | OKLAHOMA CITY, OK | BancFirst |
| $350,000–1 million | ORR CONSTRUCTION | DAVENPORT, OK | BancFirst |
| $350,000–1 million | ORR CONSTRUCTION, INC. | DAVENPORT, OK | BancFirst |
| $150,000–350,000 | ORTCO INCORPORATED | Oklahoma City, OK | BancFirst |
| $150,000–350,000 | OTOG MANAGEMENT COMPANY | Austin, TX | BancFirst |
| $350,000–1 million | OU E. SUITES LLC | Oklahoma City, OK | BancFirst |
| $350,000–1 million | OU E. SUITES, LLC | OKLAHOMA CITY, OK | BancFirst |
| $350,000–1 million | P.A.D.D., INC. | OKLAHOMA CITY, OK | BancFirst |
| $150,000–350,000 | PACKARD NEW AMERICAN KITCHEN LP | NORMAN, OK | BancFirst |
| $150,000–350,000 | PACKARDS NEW AMERICAN KITCHEN LP | Norman, OK | BancFirst |
| $150,000–350,000 | PARK MANAGEMENT COMPANY, INC. | OKLAHOMA CITY, OK | BancFirst |
| $1–2 million | PARTNERCOMM, INC. | ARLINGTON, TX | BancFirst |
| $150,000–350,000 | PASCAL AUGHTRY & ASSOCIATES, PC | OKLAHOMA CITY, OK | BancFirst |
| $150,000–350,000 | PASEO GRILL LLC | Oklahoma City, OK | BancFirst |
| $150,000–350,000 | PASEO GRILL, L.L.C. | OKLAHOMA CITY, OK | BancFirst |
| $1–2 million | PATCO ELECTRICAL SERVICES, INC. | OKLAHOMA CITY, OK | BancFirst |
| $150,000–350,000 | PATHWAYS PROFESSIONAL COUNSELING LLC | EDMOND, OK | BancFirst |
| $350,000–1 million | PATRIOT GOLF COURSE, LLC | OWASSO, OK | BancFirst |
| $150,000–350,000 | PAYNE AND SMITH, LLC | DALLAS, TX | BancFirst |
| $150,000–350,000 | PDI DOOR & HARDWARE, LLC | Owasso, OK | BancFirst |
| $150,000–350,000 | PDI DOOR & HARDWARE, LLC | OWASSO, OK | BancFirst |
| $350,000–1 million | PEARL MANAGEMENT LLC | Oklahoma City, OK | BancFirst |
| $350,000–1 million | PEARL MANAGEMENT, LLC | OKLAHOMA CITY, OK | BancFirst |
| $350,000–1 million | PEDIATRIC OPHTHALMOLOGY INC | TULSA, OK | BancFirst |
| $350,000–1 million | PEDIATRIC OPHTHALMOLOGY INC. | Tulsa, OK | BancFirst |
| $150,000–350,000 | PERFORMANCE COURSE | ALLEN, TX | BancFirst |
| $150,000–350,000 | PERFORMANCE COURSE INC. | Allen, TX | BancFirst |
| $150,000–350,000 | PERIPHERAL SYSTEMS INC. | Del City, OK | BancFirst |
| $150,000–350,000 | PERIPHERAL SYSTEMS, INC. | OKLAHOMA CITY, OK | BancFirst |
| $1–2 million | PEROT MUSEUM OF NATURE AND SCIENCE | Dallas, TX | BancFirst |
| $1–2 million | PEROT MUSEUM OF NATURE AND SCIENCE | DALLAS, TX | BancFirst |
| $150,000–350,000 | PERRY BROADCASTING COMPANY | Oklahoma City, OK | BancFirst |
| $150,000–350,000 | PERRY BROADCASTING COMPANY, INC. | OKLAHOMA CITY, OK | BancFirst |
| $350,000–1 million | PETROLEUM CLUB OF OKLAHOMA CITY, INC | OKLAHOMA CITY, OK | BancFirst |
| $150,000–350,000 | PETROLEUM EQUIPMENT COMPANY INC | Oklahoma City, OK | BancFirst |
| $1–2 million | PHILADELPHIA CHURCH OF GOD, INC | EDMOND, OK | BancFirst |
| $150,000–350,000 | PHILLIPS PRECISION MACHINING | BARTLESVILLE, OK | BancFirst |
| $150,000–350,000 | PHOENIX DESIGN & MANUFACTURING | Oklahoma City, OK | BancFirst |
| $150,000–350,000 | PHOENIX DESIGN & MANUFACTURING, LLC | OKLAHOMA CITY, OK | BancFirst |
| $2–5 million | PHOENIX HEALTHCARE LLC | TULSA, OK | BancFirst |
| $350,000–1 million | PHOENIX REHAB, LLC | TULSA, OK | BancFirst |
| $150,000–350,000 | PINNACLE DESIGN GROUP, LLC | NORMAN, OK | BancFirst |
| $350,000–1 million | PITZER'S LAWN MANAGEMENT INC | EDMOND, OK | BancFirst |
| $350,000–1 million | PITZERS LAWN MANAGEMENT INC | Edmond, OK | BancFirst |
| $350,000–1 million | PIVOT, INC. | OKLAHOMA CITY, OK | BancFirst |
| $350,000–1 million | PIXLEY LUMBER | CLAREMORE, OK | BancFirst |
| $150,000–350,000 | PLANO CHILDRENS THEATRE | Plano, TX | BancFirst |
| $350,000–1 million | PLATINUM CROSS WELDING INC | OKEMAH, OK | BancFirst |
| $350,000–1 million | PLATINUM CROSS WELDING INC. | Okemah, OK | BancFirst |
| $1–2 million | PLATINUM STEVEDORING INC | GALENA PARK, TX | BancFirst |
| $1–2 million | PLATINUM STEVEDORING INC | Galena Park, TX | BancFirst |
| $150,000–350,000 | PLAYPORT GAMING SYSTEMS LLC | Dallas, TX | BancFirst |
| $350,000–1 million | PLAYPORT GAMING SYSTEMS, LLC | DALLAS, TX | BancFirst |
| $350,000–1 million | PLEASANT VALLEY HEALTH CARE CENTER INC | MUSKOGEE, OK | BancFirst |
| $150,000–350,000 | PO-GO'S LIQUORS, INC. | DALLAS, TX | BancFirst |
| $150,000–350,000 | PORT CITY BODY SHOP INC | MUSKOGEE, OK | BancFirst |
| $150,000–350,000 | PORT CITY BODY SHOP INC | Muskogee, OK | BancFirst |
| $150,000–350,000 | POWERFOAM LLC | MIDLOTHIAN, TX | BancFirst |
| $150,000–350,000 | POWERSPORTS CONSULTING SOLUTIONS | CLAREMORE, OK | BancFirst |
| $150,000–350,000 | PRBP INC. | Oklahoma City, OK | BancFirst |
| $150,000–350,000 | PRBP, INC. | OKLAHOMA CITY, OK | BancFirst |
| $150,000–350,000 | PRECISION PHYSICAL THERAPY, LLC | HARRAH, OK | BancFirst |
| $150,000–350,000 | PREFERRED MATERIAL HANDLING INC | Oklahoma City, OK | BancFirst |
| $150,000–350,000 | PREFERRED MATERIAL HANDLING INC. | OKLAHOMA CITY, OK | BancFirst |
| $1–2 million | PREMIER TRADING AND TRANSPORTATION LLC | Cushing, OK | BancFirst |
| $1–2 million | PREMIER TRADING AND TRANSPORTATION LLC | CUSHING, OK | BancFirst |
| $1–2 million | PREMIER WASTE SERVICES, LLC | DALLAS, TX | BancFirst |
| $150,000–350,000 | PREMIUM BEEF FEEDERS, LLC | LONE WOLF, OK | BancFirst |
| $150,000–350,000 | PRESTON ROAD PHARMACY | DALLAS, TX | BancFirst |
| $2–5 million | PRICE EDWARDS & COMPANY LLC | Oklahoma City, OK | BancFirst |
| $1–2 million | PRICE EDWARDS & COMPANY, INC | OKLAHOMA CITY, OK | BancFirst |