| $1–2 million | RICHARDSON STEVEDORING & LOGISTICS INC | GALENA PARK, TX | BancFirst |
| $1–2 million | RICHARDSON STEVEDORING & LOGISTICS SERVICES INC. | Galena Park, TX | BancFirst |
| $150,000–350,000 | RICHARDT DISTRIBUTORS INC | OKLAHOMA CITY, OK | BancFirst |
| $150,000–350,000 | RICHART DISTRIBUTORS INC. | Oklahoma City, OK | BancFirst |
| $350,000–1 million | RICHWAY TRANSPORTATION SERVICES, INC | HOUSTON, TX | BancFirst |
| $350,000–1 million | RICK JONES BUICK GMC, INC | EL RENO, OK | BancFirst |
| $1–2 million | RIVERFIELD COUNTRY DAY SCHOOL | TULSA, OK | BancFirst |
| $1–2 million | RIVERFIELD COUNTRY DAY SCHOOL | Tulsa, OK | BancFirst |
| $350,000–1 million | ROBIN INTERNATIONAL TRANSPORT, INC. | GALENA PARK, TX | BancFirst |
| $1–2 million | ROBINSON PARK LLC | OKLAHOMA CITY, OK | BancFirst |
| $150,000–350,000 | ROCKWELL ENERGY RESOURCES, LLC | OKLAHOMA CITY, OK | BancFirst |
| $350,000–1 million | RODOLF & TODD, PLLC | TULSA, OK | BancFirst |
| $350,000–1 million | ROK MEDICAL MANAGEMENT LLC | Oklahoma City, OK | BancFirst |
| $350,000–1 million | ROK MEDICAL MANAGEMENT LLC | OKLAHOMA CITY, OK | BancFirst |
| $150,000–350,000 | ROMO COMPANY, INC. | ARDMORE, OK | BancFirst |
| $350,000–1 million | ROSS ELECTRIC, INC. | OKLAHOMA CITY, OK | BancFirst |
| $350,000–1 million | ROSSCON LLC | Muskogee, OK | BancFirst |
| $350,000–1 million | ROSSCON, LLC | MUSKOGEE, OK | BancFirst |
| $350,000–1 million | ROUNTREE III FOODS INC. | Oklahoma City, OK | BancFirst |
| $350,000–1 million | ROUNTREE III FOODS, INC. | OKLAHOMA CITY, OK | BancFirst |
| $150,000–350,000 | ROUTE 66 AUTO AUCTION OF EL RENO LLC | EL RENO, OK | BancFirst |
| $150,000–350,000 | ROYAL FILTER MANUFACTURING COMPANY, INC. | CHICKASHA, OK | BancFirst |
| $150,000–350,000 | ROYAL VALET TULSA LLC | Tulsa, OK | BancFirst |
| $150,000–350,000 | ROYAL VALET TULSA, LLC | TULSA, OK | BancFirst |
| $150,000–350,000 | RPX TECHNOLOGIES, INC. | STILLWATER, OK | BancFirst |
| $150,000–350,000 | RSL POWDER SPRINGS LLC | ATLANTA, GA | BancFirst |
| $150,000–350,000 | RSL POWDER SPRINGS LLC DBA BETHEL GARDENS ASSISTED AND MEMOR | Atlanta, GA | BancFirst |
| $150,000–350,000 | RT HOFFMAN | OKLAHOMA CITY, OK | BancFirst |
| $150,000–350,000 | RTR ENVIRONMENTAL LLC | NOBLE, OK | BancFirst |
| $150,000–350,000 | RTY LAW A PROFESSIONAL CORPORATION | Tulsa, OK | BancFirst |
| $350,000–1 million | RX MEDICAL LLC | Oklahoma City, OK | BancFirst |
| $350,000–1 million | RX MEDICAL LLC | OKLAHOMA CITY, OK | BancFirst |
| $350,000–1 million | RX OPTICAL INC. | TULSA, OK | BancFirst |
| $350,000–1 million | RX OPTICAL LLC | Broken Arrow, OK | BancFirst |
| $150,000–350,000 | RYLYN ENTERPRISES INC | Oklahoma City, OK | BancFirst |
| $150,000–350,000 | S & W POWER SYSTEMS & ENGINE SERVICE INC. | Oklahoma City, OK | BancFirst |
| $150,000–350,000 | S & W POWER SYSTEMS AND ENGINE SERVICE INC | OKLAHOMA CITY, OK | BancFirst |
| $150,000–350,000 | SAC AND FOX NATION CASINO | Stroud, OK | BancFirst |
| $350,000–1 million | SAFETY PLUS USA LLC | SULPHUR, OK | BancFirst |
| $150,000–350,000 | SAFETY PLUS USA LLC | Sulphur, OK | BancFirst |
| $350,000–1 million | SALINA SPAVINAW TELEPHONE COMPANY | TULSA, OK | BancFirst |
| $150,000–350,000 | SALON W, LLC | OKLAHOMA CITY, OK | BancFirst |
| $150,000–350,000 | SAN SABA ROYALTY CO LLC | DALLAS, TX | BancFirst |
| $350,000–1 million | SAN SABA ROYALTY COMPANY LLC | Dallas, TX | BancFirst |
| $150,000–350,000 | SANDY SPRINGS II SENIOR HOLDING, LLC | PEACHTREE CORNERS, GA | BancFirst |
| $2–5 million | SANGRE FOODSERVICE MANAGEMENT LLC | Stillwater, OK | BancFirst |
| $2–5 million | SANGRE HOLDINGS LLC | STILLWATER, OK | BancFirst |
| $150,000–350,000 | SANNER PIPE & SALVAGE, L.L.C. | VELMA, OK | BancFirst |
| $350,000–1 million | SAVAGE TRANSPORT, INC | BROKEN ARROW, OK | BancFirst |
| $350,000–1 million | SCHATZ PUBLISHING GROUP, LLC | BLACKWELL, OK | BancFirst |
| $350,000–1 million | SCHWAB AND COMPANY | OKLAHOMA CITY, OK | BancFirst |
| $350,000–1 million | SCHWAB AND COMPANY | Oklahoma City, OK | BancFirst |
| $150,000–350,000 | SCISSORTAIL PARK FOUNDATION INC. | Oklahoma City, OK | BancFirst |
| $150,000–350,000 | SCISSORTAIL PARK FOUNDATION, INC | OKLAHOMA CITY, OK | BancFirst |
| $350,000–1 million | SDC INC. | Edmond, OK | BancFirst |
| $350,000–1 million | SDC, INC. | EDMOND, OK | BancFirst |
| $350,000–1 million | SEARCHLIGHT CENTER INC | HOBART, OK | BancFirst |
| $150,000–350,000 | SEED STATION LLC | OKLAHOMA CITY, OK | BancFirst |
| $150,000–350,000 | SELF ENTERPRISES, LLC | OKLAHOMA CITY, OK | BancFirst |
| $150,000–350,000 | SELLINGER'S POWER GOLF LTD. | ROANOKE, TX | BancFirst |
| $350,000–1 million | SEMINOLE FORD-MERCURY, INC | SEMINOLE, OK | BancFirst |
| $150,000–350,000 | SEMINOLE NATION GAMING AGENCY | SEMINOLE, OK | BancFirst |
| $150,000–350,000 | SEMINOLE NATION GAMING AGENCY | Seminole, OK | BancFirst |
| $350,000–1 million | SEMINOLE NATION GAMING ENTERPRISE | SEMINOLE, OK | BancFirst |
| $150,000–350,000 | SENTINEL DATA SOLUTIONS | DES MOINES, IA | BancFirst |
| $150,000–350,000 | SERTCO INDUSTRIES INC. | Okemah, OK | BancFirst |
| $350,000–1 million | SERTCO INDUSTRIES, INC. | OKEMAH, OK | BancFirst |
| $1–2 million | SERVICE KING MANUFACTURING INC | Stroud, OK | BancFirst |
| $1–2 million | SERVICE KING MANUFACTURING, INC | STROUD, OK | BancFirst |
| $150,000–350,000 | SG AMMO LLC | STILLWATER, OK | BancFirst |
| $150,000–350,000 | SGO OPPORTUNITY LLC | NORMAN, OK | BancFirst |
| $350,000–1 million | SGS LLC | Yukon, OK | BancFirst |
| $350,000–1 million | SGS, LLC | YUKON, OK | BancFirst |
| $150,000–350,000 | SHAIN FAMILY FUNERAL SERVICES, INC | HUGO, OK | BancFirst |
| $150,000–350,000 | SHAMROCK, INC | TAHLEQUAH, OK | BancFirst |
| $150,000–350,000 | SHAWNEE EYE ASSOCIATES PLLC | SHAWNEE, OK | BancFirst |
| $350,000–1 million | SHAWNEE MEDICAL CENTER CLINIC, INC. | SHAWNEE, OK | BancFirst |
| $150,000–350,000 | SHEPHERD APPRAISAL SERVICES, L.L.C | OKLAHOMA CITY, OK | BancFirst |
| $150,000–350,000 | SIGNATURE LLC | STILLWATER, OK | BancFirst |
| $1–2 million | SILICONE SPECIALTIES, INC. | TULSA, OK | BancFirst |
| $150,000–350,000 | SILVER FOODS LLC | Lawton, OK | BancFirst |
| $150,000–350,000 | SIMMONS CENTER FOUNDATION | DUNCAN, OK | BancFirst |
| $1–2 million | SIMMONS HOMES, LLC | OWASSO, OK | BancFirst |
| $350,000–1 million | SK609 LLC | EDMOND, OK | BancFirst |
| $150,000–350,000 | SKULLS UNLIMITED INTERNATIONAL | OKLAHOMA CITY, OK | BancFirst |
| $150,000–350,000 | SKULLS UNLIMITED INTERNATIONAL | Moore, OK | BancFirst |
| $350,000–1 million | SLIM HANEY MACHINING | Tulsa, OK | BancFirst |
| $350,000–1 million | SLIM HANEY MACHINING INC | TULSA, OK | BancFirst |
| $150,000–350,000 | SLYDER ENERGY SOLUTIONS, LLC | CHANDLER, OK | BancFirst |
| $150,000–350,000 | SMC CONSULTING ENGINEERS, PC | OKLAHOMA CITY, OK | BancFirst |
| $150,000–350,000 | SMITH & ASSOCIATES, INC. | OKLAHOMA CITY, OK | BancFirst |
| $150,000–350,000 | SMITH & KERNKE FUNERAL DIRECTORS, LLC | OKLAHOMA CITY, OK | BancFirst |
| $350,000–1 million | SMITH & PICKEL CONSTRUCTION, INC. | OKLAHOMA CITY, OK | BancFirst |
| $350,000–1 million | SMITH BROTHERS ABSTRACT & TITLE CO, LLC | BROKEN ARROW, OK | BancFirst |
| $150,000–350,000 | SMITH LIGHTING SALES, INC. | OKLAHOMA CITY, OK | BancFirst |
| $150,000–350,000 | SMITHS GARDEN EQUIPMENT, INC. | TULSA, OK | BancFirst |
| $150,000–350,000 | SMITTYS GARAGE- BROKEN ARROW L.L.C. | Broken Arrow, OK | BancFirst |
| $150,000–350,000 | SMITTYS GARAGE- OMAHA II L.L.C. | Omaha, NE | BancFirst |
| $150,000–350,000 | SMITTYS GARAGE- OWASSO L.L.C. | Owasso, OK | BancFirst |
| $150,000–350,000 | SMITTYS GARAGE- ROGERS AR L.L.C. | Rogers, AR | BancFirst |