| $150,000–350,000 | RED PLAINS LENDER SURVEYS, LLC | EDMOND, OK | BancFirst |
| $150,000–350,000 | RED PLAINS PLUMBING, INC. | OKLAHOMA CITY, OK | BancFirst |
| $150,000–350,000 | RED PRIME STEAKHOUSE, LP | OKLAHOMA CITY, OK | BancFirst |
| $150,000–350,000 | RED RIDER SERVICES, LLC | YUKON, OK | BancFirst |
| $150,000–350,000 | RED RIVER DISTRIBUTION, LLC | CARROLLTON, TX | BancFirst |
| $1–2 million | RED RIVER SCIENCE AND TECHNOLOGY, LLC | LAWTON, OK | BancFirst |
| $350,000–1 million | RED RIVER VALLEY RURAL ELECTRIC ASSOCIATION | MARIETTA, OK | BancFirst |
| $350,000–1 million | RED STONE RESOURCES, LLC | EDMOND, OK | BancFirst |
| $150,000–350,000 | REDROCK CANYON GRILL - TULSA, LLC | TULSA, OK | BancFirst |
| $350,000–1 million | REDROCK CANYON GRILL, LLC | OKLAHOMA CITY, OK | BancFirst |
| $150,000–350,000 | REDROCK CANYON GRILL-KANSAS CITY, LLC | OVERLAND PARK, KS | BancFirst |
| $150,000–350,000 | REDROCK CANYON GRILL-NORMAN, LLC | NORMAN, OK | BancFirst |
| $150,000–350,000 | REDROCK CANYON GRILL-OMAHA, L.L.C. | OMAHA, NE | BancFirst |
| $150,000–350,000 | REDROCK CANYON GRILL-SOUTHLAKE LLC | SOUTHLAKE, TX | BancFirst |
| $150,000–350,000 | REDROCK CANYON GRILL-WICHITA, LLC | WICHITA, KS | BancFirst |
| $150,000–350,000 | REESE MARKETOS LLP | DALLAS, TX | BancFirst |
| $2–5 million | REFINED TECHNOLOGIES INC | SPRING, TX | BancFirst |
| $1–2 million | REGIONAL FOOD BANK OF OKLAHOMA, INC. | OKLAHOMA CITY, OK | BancFirst |
| $150,000–350,000 | REGIONAL PHYSICAL THERAPY, INC | MIDWEST CITY, OK | BancFirst |
| $150,000–350,000 | RELIANT HOME HEALTH, LLC | BROKEN ARROW, OK | BancFirst |
| $150,000–350,000 | REMCO DEMOLITION LLC | LEAVENWORTH, KS | BancFirst |
| $150,000–350,000 | REMERGE OF OKLAHOMA COUNTY, INC | OKLAHOMA CITY, OK | BancFirst |
| $150,000–350,000 | REMPEL'S ROCK-N-READY MIX INC | PRAGUE, OK | BancFirst |
| $150,000–350,000 | RENAISSANCE KIDS INC. | STILLWATER, OK | BancFirst |
| $150,000–350,000 | RENKIDS, L.L.C | STILLWATER, OK | BancFirst |
| $150,000–350,000 | REPRODUCTION ENTERPRISES, INC. | STILLWATER, OK | BancFirst |
| $350,000–1 million | RESONANCE, INC | OKLAHOMA CITY, OK | BancFirst |
| $150,000–350,000 | RETINA CONSULTANTS OF OKLAHOMA PLLC | OKLAHOMA CITY, OK | BancFirst |
| $150,000–350,000 | RFD CO LTD | SULPHUR, OK | BancFirst |
| $1–2 million | RGCE LLC | OKLAHOMA CITY, OK | BancFirst |
| $350,000–1 million | RGROUP, INC | LUTHER, OK | BancFirst |
| $1–2 million | RICHARDSON STEVEDORING & LOGISTICS INC | GALENA PARK, TX | BancFirst |
| $150,000–350,000 | RICHARDT 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 |
| $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 |
| $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 | 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 | RPX TECHNOLOGIES, INC. | STILLWATER, OK | BancFirst |
| $150,000–350,000 | RSL POWDER SPRINGS LLC | ATLANTA, GA | BancFirst |
| $150,000–350,000 | RT HOFFMAN | OKLAHOMA CITY, OK | BancFirst |
| $150,000–350,000 | RTR ENVIRONMENTAL LLC | NOBLE, OK | BancFirst |
| $350,000–1 million | RX MEDICAL LLC | OKLAHOMA CITY, OK | BancFirst |
| $350,000–1 million | RX OPTICAL INC. | TULSA, OK | BancFirst |
| $150,000–350,000 | S & W POWER SYSTEMS AND ENGINE SERVICE INC | OKLAHOMA CITY, OK | BancFirst |
| $350,000–1 million | 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 |
| $150,000–350,000 | SANDY SPRINGS II SENIOR HOLDING, LLC | PEACHTREE CORNERS, GA | 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 |
| $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 | 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 |
| $350,000–1 million | SEMINOLE NATION GAMING ENTERPRISE | SEMINOLE, OK | BancFirst |
| $150,000–350,000 | SENTINEL DATA SOLUTIONS | DES MOINES, IA | BancFirst |
| $350,000–1 million | SERTCO INDUSTRIES, INC. | OKEMAH, 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 |
| $150,000–350,000 | SHAMROCK, INC | TAHLEQUAH, OK | BancFirst |
| $150,000–350,000 | SHAWNEE EYE ASSOCIATES PLLC | 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 | 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 | SKULL UNLIMITED INTERNATIONAL | OKLAHOMA CITY, 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 | SONIC DRIVE-IN, EL DORADO, AR, LLC | EL DORADO, AR | BancFirst |
| $150,000–350,000 | SONIC DRIVE-IN, GREENWOOD, MISSISSIPPI, INC. | GREENWOOD, MS | BancFirst |
| $150,000–350,000 | SONIC DRIVE-IN, LIVINGSTON, TEXAS, LP | LIVINGSTON, TX | BancFirst |