Counties and Associated County Codes
Oil and Gas District Boundaries Map
| COUNTY | COUNTY CODE | COUNTY | COUNTY CODE |
|---|---|---|---|
| Anderson | 001 | Karnes | 255 |
| Andrews | 003 | Kaufman | 257 |
| Angelina | 005 | Kendall | 259 |
| Aransas | 007 | Kenedy | 261 |
| Archer | 009 | Kent | 263 |
| Armstrong | 011 | Kerr | 265 |
| Atascosa | 013 | Kimble | 267 |
| Austin | 015 | King | 269 |
| Bailey | 017 | Kinny | 271 |
| Bandera | 019 | Kleberg | 273 |
| Bastrop | 021 | Knox | 275 |
| Baylor | 023 | Lamar | 277 |
| Bee | 025 | Lamb | 279 |
| Bell | 027 | Lampasas | 281 |
| Bexar | 029 | La Salle | 283 |
| Blanco | 031 | Lavaca | 285 |
| Borden | 033 | Lee | 287 |
| Bosque | 035 | Leon | 289 |
| Bowie | 037 | Liberty | 291 |
| Brazoria | 039 | Limestone | 293 |
| Brazos | 041 | Lipscomb | 295 |
| Brewster | 043 | Live Oak | 297 |
| Briscoe | 045 | Llano | 299 |
| Brooks | 047 | Loving | 301 |
| Brown | 049 | Lubbock | 303 |
| Burleson | 051 | Lynn | 305 |
| Burnet | 053 | McCulloch | 307 |
| Caldwell | 055 | McLennan | 309 |
| Calhoun | 057 | McMullen | 311 |
| Callahan | 059 | Madison | 313 |
| Cameron | 061 | Marion | 315 |
| Camp | 063 | Martin | 317 |
| Carson | 065 | Mason | 319 |
| Cass | 067 | Matagorda | 321 |
| Castro | 069 | Maverick | 323 |
| Chambers | 071 | Medina | 325 |
| Cherokee | 073 | Menard | 327 |
| Childress | 075 | Midland | 329 |
| Clay | 077 | Milam | 331 |
| Cochran | 079 | Mills | 333 |
| Coke | 081 | Mitchell | 335 |
| Coleman | 083 | Montague | 337 |
| Collin | 085 | Montgomery | 339 |
| Collingsworth | 087 | Moore | 341 |
| Colorado | 089 | Morris | 343 |
| Comal | 091 | Motley | 345 |
| Comanche | 093 | Nacogdoches | 347 |
| Concho | 095 | Navarro | 349 |
| Cooke | 097 | Newton | 351 |
| Coryell | 099 | Nolan | 353 |
| Cottle | 101 | Nueces | 355 |
| Crane | 103 | Ochiltree | 357 |
| Crockett | 105 | Oldham | 359 |
| Crosby | 107 | Orange | 361 |
| Culberson | 109 | Palo Pinto | 363 |
| Dallam | 111 | Panola | 365 |
| Dallas | 113 | Parker | 367 |
| Dawson | 115 | Parmer | 369 |
| Deaf Smith | 117 | Pecos | 371 |
| Delta | 119 | Polk | 373 |
| Denton | 121 | Potter | 375 |
| DeWitt | 123 | Presidio | 377 |
| Dickens | 125 | Rains | 379 |
| Dimmit | 127 | Randall | 381 |
| Donley | 129 | Reagan | 383 |
| Duval | 131 | Real | 385 |
| Eastland | 133 | Red River | 387 |
| Ector | 135 | Reeves | 389 |
| Edwards | 137 | Refugio | 391 |
| Ellis | 139 | Roberts | 393 |
| El Paso | 141 | Robertson | 395 |
| Erath | 143 | Rockwall | 397 |
| Falls | 145 | Runnels | 399 |
| Fannin | 147 | Rusk | 401 |
| Fayette | 149 | Sabine | 403 |
| Fisher | 151 | San Augustine | 405 |
| Floyd | 153 | San Jacinto | 407 |
| Foard | 155 | San Patricio | 409 |
| Fort Bend | 157 | San Saba | 411 |
| Franklin | 159 | Schleicher | 413 |
| Freestone | 161 | Scurry | 415 |
| Frio | 163 | Shackelford | 417 |
| Gaines | 165 | Shelby | 419 |
| Galveston | 167 | Sherman | 421 |
| Garza | 169 | Smith | 423 |
| Gillespie | 171 | Somerville | 425 |
| Glasscock | 173 | Starr | 427 |
| Goliad | 175 | Stephens | 429 |
| Gonzales | 177 | Sterling | 431 |
| Gray | 179 | Stonewall | 433 |
| Grayson | 181 | Sutton | 435 |
| Gregg | 183 | Swisher | 437 |
| Grimes | 185 | Tarrant | 439 |
| Guadalupe | 187 | Taylor | 441 |
| Hale | 189 | Terrell | 443 |
| Hall | 191 | Terry | 445 |
| Hamilton | 193 | Throckmorton | 447 |
| Hansford | 195 | Titus | 449 |
| Hardeman | 197 | Tom Green | 451 |
| Hardin | 199 | Travis | 453 |
| Harris | 201 | Trinity | 455 |
| Harrison | 203 | Tyler | 457 |
| Hartley | 205 | Upshur | 459 |
| Haskell | 207 | Upton | 461 |
| Hays | 209 | Uvalde | 463 |
| Hemphill | 211 | Val Verde | 465 |
| Henderson | 213 | Van Zandt | 467 |
| Hidalgo | 215 | Victoria | 469 |
| Hill | 217 | Walker | 471 |
| Hockley | 219 | Waller | 473 |
| Hood | 221 | Ward | 475 |
| Hopkins | 223 | Washington | 477 |
| Houston | 225 | Webb | 479 |
| Howard | 227 | Wharton | 481 |
| Hudspeth | 229 | Wheeler | 483 |
| Hunt | 231 | Wichita | 485 |
| Hutchinson | 233 | Wilbarger | 487 |
| Irion | 235 | Willacy | 489 |
| Jack | 237 | Williamson | 491 |
| Jackson | 239 | Wilson | 493 |
| Jasper | 241 | Winkler | 495 |
| Jeff Davis | 243 | Wise | 497 |
| Jefferson | 245 | Wood | 499 |
| Jim Hogg | 247 | Yoakum | 501 |
| Jim Wells | 249 | Young | 503 |
| Johnson | 251 | Zapata | 505 |
| Jones | 253 | Zavala | 507 |
| OFFSHORE COUNTY CODES | AREA |
| 600 | S. Padre Is-SB |
| 601 | N. Padre Is-SB |
| 602 | Mustang Is-SB |
| 603 | Matagorda IS-SB |
| 604 | Brazos-SB |
| 605 | Galveston-SB |
| 606 | High IS-SB |
| 700 | S. Padre IS-LB |
| 701 | N. Padre IS-LB |
| 702 | Mustang IS-LB |
| 703 | Matagorda IS-LB |
| 704 | Brazos-LB |
| 705 | Brazos-S. |
| 706 | Galveston-LB |
| 707 | Galveston-S. AD |
| 708 | High IS-LB |
| 709 | High Is-S AD |
| 710 | High IS-E AD |
| 711 | High IS-A E AD |
| 712 | Mustang IS A E |
| 713 | N. Padre IS-A E |
| 714 | S. Padre IS-A E |
| 715 | Sabine Pass A |