| $150,000–350,000 | HG JENKINS CONSTRUCTION, LLC | LAWTON, OK | BancFirst |
| $2–5 million | HGC HOLDINGS, LLC | OKLAHOMA CITY, OK | BancFirst |
| $350,000–1 million | HICORP INC. | Tulsa, OK | BancFirst |
| $350,000–1 million | HICORP, INC | TULSA, OK | BancFirst |
| $150,000–350,000 | HIDDEN TRAIL PROPERTIES | OKLAHOMA CITY, OK | BancFirst |
| $150,000–350,000 | HIDDEN TRAILS PROPERTIES LLC | Oklahoma City, OK | BancFirst |
| $350,000–1 million | HIDEAWAY RESTAURANT INC. | Stillwater, OK | BancFirst |
| $350,000–1 million | HIGGINBOTHAM BARTLETT OF NEW MEXICO | LOVINGTON, NM | BancFirst |
| $150,000–350,000 | HIGH FIVE MEDIA GROUP LLC | Oklahoma City, OK | BancFirst |
| $150,000–350,000 | HIGH FIVE MEDIA GROUP, LLC | OKLAHOMA CITY, OK | BancFirst |
| $350,000–1 million | HIGHRIDGE CONSULTING SERVICES, LLC | PRAGUE, OK | BancFirst |
| $350,000–1 million | HIGHWAY CHICAGO BG | CRYSTAL LAKE, IL | BancFirst |
| $350,000–1 million | HIGHWAY DEALERSHIPS OF ILLINOIS | EL PASO, IL | BancFirst |
| $150,000–350,000 | HILL DERMATOLOGY, PLLC | BARTLESVILLE, OK | BancFirst |
| $150,000–350,000 | HINES GARAGE & EQUIPMENT CO INC | DUNCAN, OK | BancFirst |
| $150,000–350,000 | HINES GARAGE & EQUIPMENT CO., INC. | DUNCAN, OK | BancFirst |
| $150,000–350,000 | HINSON INSURANCE AGENCY INC | ADA, OK | BancFirst |
| $150,000–350,000 | HINSON INSURANCE AGENCY INC. | Shawnee, OK | BancFirst |
| $150,000–350,000 | HODGE AUTO GROUP INC | Broken Bow, OK | BancFirst |
| $150,000–350,000 | HODGE AUTO GROUP, INC | BROKEN BOW, OK | BancFirst |
| $150,000–350,000 | HODGE, INC. | ARDMORE, OK | BancFirst |
| $150,000–350,000 | HOGAN PROPERTY COMPANY, L.L.C. | OKLAHOMA CITY, OK | BancFirst |
| $150,000–350,000 | HOLLIE'S FLATIRON STEAKHOUSE, LLC | OKLAHOMA CITY, OK | BancFirst |
| $150,000–350,000 | HOLLIES FLATIRON STEAKHOUSE L.L.C. | Moore, OK | BancFirst |
| $350,000–1 million | HOLLOWAY UPDIKE AND BELLEN INC | MUSKOGEE, OK | BancFirst |
| $350,000–1 million | HOLTZ ELECTRIC INC | BARTLESVILLE, OK | BancFirst |
| $350,000–1 million | HOLTZ ELECTRIC INC. | Bartlesville, OK | BancFirst |
| $350,000–1 million | HOME INTEGRATION INC | SHAWNEE, OK | BancFirst |
| $350,000–1 million | HOMEWOOD RESTAURANT LP | Dallas, TX | BancFirst |
| $350,000–1 million | HOMEWOOD RESTAURANT, LP | DALLAS, TX | BancFirst |
| $150,000–350,000 | HOOTEN OIL COMPANY, INC. | SEMINOLE, OK | BancFirst |
| $150,000–350,000 | HOOTEN OIL LLC | Seminole, OK | BancFirst |
| $350,000–1 million | HORIZON HYDRAULICS, LLC | Oklahoma City, OK | BancFirst |
| $350,000–1 million | HORIZON HYDRAULICS, LLC | OKLAHOMA CITY, OK | BancFirst |
| $1–2 million | HORN BARLOW PARTNERSHIP | DALLAS, TX | BancFirst |
| $1–2 million | HORN EQUIPMENT COMPANY LLC | Moore, OK | BancFirst |
| $1–2 million | HORN EQUIPMENT COMPANY, INC. | MOORE, OK | BancFirst |
| $150,000–350,000 | HOSKINS GYPSUM CO LLC | LONGDALE, OK | BancFirst |
| $150,000–350,000 | HOSKINS GYPSUM COMPANY LLC | Longdale, OK | BancFirst |
| $350,000–1 million | HOSKINS TRUCKING INC | Longdale, OK | BancFirst |
| $350,000–1 million | HOSKINS TRUCKING, INC | LONGDALE, OK | BancFirst |
| $2–5 million | HS-REAL ESTATE INC | NORMAN, OK | BancFirst |
| $150,000–350,000 | HSRG L.L.C. | Fayetteville, AR | BancFirst |
| $150,000–350,000 | HSRG, L.L.C. | FAYETTEVILLE, AR | BancFirst |
| $150,000–350,000 | HTC TRANSPORT INC. | Roff, OK | BancFirst |
| $150,000–350,000 | HTC TRANSPORT, INC | ROFF, OK | BancFirst |
| $350,000–1 million | HUDIBURG BUICK-GMC LLC | OKLAHOMA CITY, OK | BancFirst |
| $2–5 million | HUDIBURG CHEVROLET, LLC | Midwest City, OK | BancFirst |
| $150,000–350,000 | HUDIBURG FORD LLC | CHANDLER, OK | BancFirst |
| $350,000–1 million | HUDIBURG SUBARU, LLC | OKLAHOMA CITY, OK | BancFirst |
| $1–2 million | HUGHES INDUSTRIES, LLC | OKLAHOMA CITY, OK | BancFirst |
| $350,000–1 million | HULEN CR OF FT WORTH, INC | FORT WORTH, TX | BancFirst |
| $350,000–1 million | HULEN CR OF FT. WORTH INC. | Fort Worth, TX | BancFirst |
| $150,000–350,000 | HULL PLUMBING INC | Oklahoma City, OK | BancFirst |
| $150,000–350,000 | HULL PLUMBING INC | OKLAHOMA CITY, OK | BancFirst |
| $150,000–350,000 | HUNTINGTON ENERGY USA INC | OKLAHOMA CITY, OK | BancFirst |
| $150,000–350,000 | HUNTINGTON ENERGY USA INC | Oklahoma City, OK | BancFirst |
| $150,000–350,000 | HWY 120 SENIOR HOLDING LLC | ALPHARETTA, GA | BancFirst |
| $150,000–350,000 | I2E MANAGEMENT COMPANY, INC. | OKLAHOMA CITY, OK | BancFirst |
| $150,000–350,000 | I2E, INC | OKLAHOMA CITY, OK | BancFirst |
| $350,000–1 million | IDEAL FORD LLC OF OKLAHOMA | OKLAHOMA CITY, OK | BancFirst |
| $150,000–350,000 | IDELIVER, INC | PONCA CITY, OK | BancFirst |
| $1–2 million | IMAX CORPORATION | TULSA, OK | BancFirst |
| $350,000–1 million | IMMEDIATE CARE OF OKLAHOMA LLC | Oklahoma City, OK | BancFirst |
| $350,000–1 million | IMMEDIATE CARE OF OKLAHOMA, L.L.C. | OKLAHOMA CITY, OK | BancFirst |
| $350,000–1 million | INDACO METALS, LLC | SHAWNEE, OK | BancFirst |
| $150,000–350,000 | INDUSTRIAL FABRICATION SERVICES, LLC | TULSA, OK | BancFirst |
| $350,000–1 million | INDUSTRIAL INSPECTION & CONSULTING INC. | Bixby, OK | BancFirst |
| $350,000–1 million | INDUSTRIAL INSPECTION & CONSULTING, INC. | BIXBY, OK | BancFirst |
| $350,000–1 million | INDUSTRIAL RUBBER INC. | Oklahoma City, OK | BancFirst |
| $350,000–1 million | INDUSTRIAL RUBBER, INC. | OKLAHOMA CITY, OK | BancFirst |
| $350,000–1 million | INSIGHT CREATIVE GROUP INC | Oklahoma City, OK | BancFirst |
| $350,000–1 million | INSIGHT CREATIVE GROUP, INC. | OKLAHOMA CITY, OK | BancFirst |
| $150,000–350,000 | INTEGRATED COMMUNICATION SYSTEMS INC. | Moore, OK | BancFirst |
| $150,000–350,000 | INTEGRATED COMMUNICATIONS SYSTEMS INC | OKLAHOMA CITY, OK | BancFirst |
| $350,000–1 million | INTERIM HEALTHCARE OF TULSA, INC | TULSA, OK | BancFirst |
| $350,000–1 million | INTERMEX PRODUCTS USA, LTD. | GRAND PRAIRIE, TX | BancFirst |
| $350,000–1 million | INTERURBAN OF EDMOND LIMITED PARTNERSHIP | Norman, OK | BancFirst |
| $150,000–350,000 | INTERURBAN OF EDMOND, LIMITED PARTNERSHIP | NORMAN, OK | BancFirst |
| $150,000–350,000 | INTERURBAN OF NORMAN LLC | Norman, OK | BancFirst |
| $150,000–350,000 | INTERURBAN OF NORMAN, LLC | NORMAN, OK | BancFirst |
| $150,000–350,000 | INTERURBAN OF NW OKC, LLC | NORMAN, OK | BancFirst |
| $350,000–1 million | INTERURBAN OF YUKON LIMITED PARTNERSHIP | Norman, OK | BancFirst |
| $350,000–1 million | INTERURBAN OF YUKON LIMITED PARTNERSHIP | NORMAN, OK | BancFirst |
| $150,000–350,000 | ISRAEL DIAMOND SUPPLY LLC | TULSA, OK | BancFirst |
| $150,000–350,000 | J CURRY ELECTRIC COMPANY, INC | OKLAHOMA CITY, OK | BancFirst |
| $150,000–350,000 | J & R WELL SERVICE INC | Kingfisher, OK | BancFirst |
| $150,000–350,000 | J & R WELL SERVICE, INC | KINGFISHER, OK | BancFirst |
| $1–2 million | J A OIL FIELD MANUFACTURING IN | OKLAHOMA CITY, OK | BancFirst |
| $350,000–1 million | J. D. LEWIS CONSTRUCTION CO. | HEALDTON, OK | BancFirst |
| $350,000–1 million | J. D. LEWIS CONSTRUCTION CO. | Healdton, OK | BancFirst |
| $1–2 million | JA OILFIELD MANUFACTURING INC | Oklahoma City, OK | BancFirst |
| $350,000–1 million | JACK KISSEE FORD, INC. | CLAREMORE, OK | BancFirst |
| $350,000–1 million | JACK ONOFRIO DOG SHOWS, LLC | OKLAHOMA CITY, OK | BancFirst |
| $350,000–1 million | JAMES HODGE FORD LINCOLN, INC | MUSKOGEE, OK | BancFirst |
| $150,000–350,000 | JAMES HODGE FORD, INC. | IDABEL, OK | BancFirst |
| $150,000–350,000 | JAMES HODGE HYUNDAI, INC | MUSKOGEE, OK | BancFirst |
| $350,000–1 million | JAMES HODGE INC. | Muskogee, OK | BancFirst |
| $350,000–1 million | JAMES HODGE, INC | MUSKOGEE, OK | BancFirst |
| $150,000–350,000 | JANTZ SUPPLY, INC | DAVIS, OK | BancFirst |