| MARATHON STATE COM #002 | 24225 | Gas | Plugged (site released) |
| MARAUDER 31 FEDERAL #002H | 229137 | Oil | Active |
| MARAUDER 31 FEDERAL #003H | 229137 | Oil | Active |
| MARAUDER 31 FEDERAL #004H | 229137 | Oil | Active |
| MARAUDER FEDERAL #001H | 229137 | Oil | Active |
| MARBOB #009H | 18917 | Oil | Cancelled |
| MARBOB #010H | 18917 | Oil | Cancelled |
| MARBOB #011H | 18917 | Oil | Cancelled |
| MARBOB 19 STATE COM #121H | 228937 | Oil | Cancelled |
| MARBOB 19 STATE COM #122H | 228937 | Oil | Cancelled |
| MARBOB 19 STATE COM #123H | 228937 | Oil | Active |
| MARBOB 19 STATE COM #124H | 228937 | Oil | Cancelled |
| MARBOB 19 STATE COM #133H | 228937 | Oil | Active |
| MARBOB STATE #001 | 228937 | Salt Water Disposal | Plugged (not released) |
| MARBOB STATE #002 | 228937 | Oil | Active |
| MARBOB STATE #003 | 228937 | Oil | Plugged (not released) |
| MARBOB STATE #004 | 228937 | Oil | Plugged (not released) |
| MARBOB STATE #005C | 18917 | Oil | Cancelled |
| MARBOB STATE #006H | 18917 | Oil | Plugged (site released) |
| MARBOB STATE #007C | 18917 | Oil | Cancelled |
| MARBOB STATE #008C | 18917 | Oil | Cancelled |
| MARCEL BMM FEDERAL #001H | 328565 | Oil | Active |
| MARCEL BMM FEDERAL #002C | 25575 | Oil | Cancelled |
| MARCEL BMM FEDERAL #002H | 7377 | Oil | New |
| MARCH AMT FEDERAL COM #001 | 328565 | Gas | Active |
| MARGARET #101H | 372290 | Oil | New |
| MARGARET #102H | 372290 | Oil | Active |
| MARGARET #103H | 372290 | Oil | Active |
| MARGARET #104H | 372290 | Oil | New |
| MARGARET #201H | 372290 | Oil | New |
| MARGARET #202H | 372290 | Oil | New |
| MARGARET #203H | 372290 | Oil | New |
| MARGARET 13 FEDERAL COM #001 | 229137 | Oil | Active |
| MARGARET 23 FEE #010H | 328947 | Oil | New |
| MARGARET 23 FEE #011H | 328947 | Oil | New |
| MARGARET 23 FEE #020H | 328947 | Oil | New |
| MARGARET 23 FEE #060H | 328947 | Oil | New |
| MARGARET 23 FEE #090H | 328947 | Oil | New |
| MARGARET NORTH #105C | 328947 | Oil | Cancelled |
| MARGARET NORTH #106C | 328947 | Oil | Cancelled |
| MARGARET NORTH #107C | 328947 | Oil | Cancelled |
| MARGIE KAY #001 | 6171 | Oil | Plugged (site released) |
| MARINE 19 FEDERAL #001 | 16696 | Gas | Plugged (site released) |
| MARINER FEE #001H | 160825 | Gas | Cancelled |
| MARINER FEE 23 28 19 TB #002H | 372098 | Oil | New |
| MARINER FEE 23 28 19 TB #009H | 372098 | Oil | New |
| MARINER FEE 23 28 19 WA #001H | 372098 | Gas | Active |
| MARINER FEE 23 28 19 WA #010H | 372098 | Gas | Active |
| MARINER FEE 23 28 19 WXY #006H | 372098 | Gas | Active |
| MARINER FEE 23 28 20 TB #015H | 372098 | Oil | New |
| MARINER FEE 23 28 20 WA #014H | 372098 | Gas | Active |
| MARINER FEE 23 28 20 WXY #011H | 372098 | Gas | Active |
| MARINER FEE 23 28 20 WXY #018H | 372098 | Gas | Active |
| MARION FEDERAL #001 | 14021 | Oil | Plugged (site released) |
| MARIS FEDERAL #001 | 16696 | Oil | Active |
| MARK TWAIN 5 FEDERAL COM #001H | 6137 | Oil | Cancelled |
| MARK TWAIN 5 FEDERAL COM #002H | 13837 | Oil | Active |
| MARK TWAIN 5 FEDERAL COM #003H | 13837 | Oil | Active |
| MARK TWAIN 5 FEDERAL COM #004H | 13837 | Oil | Active |
| MARKHAM #001 | 4323 | Oil | Plugged (site released) |
| MARKSMAN 5 STATE COM #001 | 6137 | Gas | Cancelled |
| MARLEY FEE #001 | 246289 | Oil | Cancelled |
| MARLEY STATE COM 31 AB #001H | 372210 | Oil | Active |
| MARLEY STATE COM 31 AB #002H | 372210 | Oil | Active |
| MARLEY STATE COM 31 AB #003H | 372210 | Oil | Active |
| MARLEY STATE COM 31 AB #004H | 372210 | Oil | Active |
| MARLEY STATE COM 31 AB #005H | 372210 | Oil | Active |
| MARLEY STATE COM 31 AB #006H | 372210 | Oil | Active |
| MARLEY STATE COM 31 CD #001H | 372210 | Oil | Active |
| MARLEY STATE COM 31 CD #002H | 372210 | Oil | Active |
| MARLEY STATE COM 31 CD #003H | 372210 | Oil | Active |
| MARLEY STATE COM 31 CD #004H | 372210 | Oil | Active |
| MARLEY STATE COM 31 CD #005H | 372210 | Oil | New |
| MARLEY STATE COM 31 CD #006H | 372210 | Oil | Active |
| MARLEY STATE COM 31 CD #007H | 372210 | Oil | Active |
| MARLIN 32 STATE #001 | 14744 | Gas | Active |
| MARLIN STATE #001 | 265378 | Gas | Active |
| MARLIN STATE #002 | 265378 | Oil | Active |
| MARLIN STATE #003 | 265378 | Oil | Active |
| MARLIN STATE #004 | 265378 | Oil | Active |
| MARMOT BJF STATE COM #001 | 25575 | Gas | Cancelled |
| MARMOT BJF STATE COM #001 | 25575 | Gas | Cancelled |
| MARMOT BJF STATE COM #001C | 25575 | Gas | Cancelled |
| MARQUARDT 1 PENN FEDERAL #001 | 215099 | Gas | Active |
| MARQUARDT 1 PENN FEDERAL #002 | 162683 | Gas | Plugged (site released) |
| MARQUARDT 1 PENN FEDERAL #003 | 162683 | Gas | Plugged (site released) |
| MARQUARDT 12 13 FEDERAL COM #011H | 215099 | Gas | Active |
| MARQUARDT 12 PENN FEDERAL #001 | 162683 | Gas | Plugged (site released) |
| MARQUARDT 12 PENN FEDERAL #002 | 215099 | Gas | Active |
| MARQUARDT FEDERAL #001 | 4323 | Gas | Plugged (site released) |
| MARQUARDT FEDERAL #002 | 4323 | Gas | Plugged (site released) |
| MARQUARDT FEDERAL #003 | 4323 | Gas | Plugged (site released) |
| MARQUARDT FEDERAL #004 | 4323 | Gas | Plugged (site released) |
| MARQUARDT FEDERAL #005 | 4323 | Oil | Cancelled |
| MARQUARDT FEDERAL #006 | 4323 | Salt Water Disposal | Plugged (site released) |
| MARQUARDT FEDERAL #007 | 4323 | Oil | Plugged (site released) |
| MARQUARDT FEDERAL #008 | 4323 | Oil | Cancelled |
| MARQUARDT FEDERAL #008 | 162683 | Oil | Plugged (site released) |
| MARQUARDT FEDERAL #009 | 4323 | Oil | Cancelled |
| MARQUARDT FEDERAL #009 | 162683 | Oil | Plugged (site released) |
| MARQUARDT FEDERAL #010 | 4323 | Oil | Cancelled |
| MARQUARDT FEDERAL #010 | 162683 | Oil | Cancelled |
| MARQUARDT FEDERAL #011 | 162683 | Oil | Cancelled |
| MARQUARDT FEDERAL #011H | 215099 | Oil | Active |
| MARQUARDT FEDERAL #012H | 215099 | Oil | Active |
| MARQUARDT FEDERAL #013H | 215099 | Oil | Active |
| MARQUARDT FEDERAL #014H | 215099 | Oil | Active |
| MARQUARDT FEDERAL #015H | 215099 | Oil | Active |
| MARQUARDT FEDERAL #016H | 215099 | Oil | Active |
| MARQUARDT FEDERAL #017 | 4323 | Oil | Cancelled |
| MARQUARDT FEDERAL #017H | 215099 | Oil | Active |
| MARQUARDT FEDERAL #018H | 215099 | Oil | Active |
| MARQUARDT FEDERAL #019 | 4323 | Oil | Cancelled |
| MARQUARDT FEDERAL #020 | 4323 | Oil | Cancelled |
| MARQUESS COM #001 | 12361 | Gas | Plugged (site released) |
| MARSH OWL FEDERAL COM #001H | 229137 | Oil | Active |
| MARSHALL APH #001 | 372290 | Oil | Plugged (not released) |
| MARSHALL APH #002 | 372290 | Oil | Plugged (site released) |
| MARSHALL APH #003 | 25575 | Oil | Plugged (site released) |
| MARSHALL APH #004 | 372290 | Oil | Plugged (not released) |
| MARTHA #001 | 6171 | Oil | Plugged (site released) |
| MARTHA AIK FEDERAL #001 | 7377 | Oil | Active |
| MARTHA AIK FEDERAL #002 | 7377 | Oil | Active |
| MARTHA AIK FEDERAL #003 | 7377 | Oil | Plugged (site released) |
| MARTHA AIK FEDERAL #004 | 7377 | Oil | Active |
| MARTHA AIK FEDERAL #005 | 25575 | Oil | Plugged (site released) |
| MARTHA AIK FEDERAL #006 | 7377 | Oil | Plugged (site released) |
| MARTHA AIK FEDERAL #007H | 7377 | Oil | Active |
| MARTHA AIK FEDERAL #008H | 7377 | Oil | Active |
| MARTHA AIK FEDERAL #009 | 7377 | Oil | Active |
| MARTHA AIK FEDERAL #010H | 7377 | Oil | Plugged (site released) |
| MARTHA AIK FEDERAL #011H | 7377 | Oil | Active |
| MARTHA AIK FEDERAL #012H | 25575 | Oil | Cancelled |
| MARTHA AIK FEDERAL #013H | 7377 | Oil | Plugged (site released) |
| MARTHA AIK FEDERAL #014H | 7377 | Oil | Active |
| MARTHA CREEK #002 | 372171 | Gas | Active |
| MARTHA CREEK #003 | 192463 | Gas | Plugged (site released) |
| MARTHA CREEK GAS COM #001 | 372171 | Gas | Active |
| MARTHA CREEK GAS COM #005 | 372171 | Gas | Active |
| MARTHA CREEK GAS COM #006 | 6137 | Gas | Cancelled |
| MARTHA CREEK GAS COM #006Q | 372171 | Gas | Active |
| MARTHA CREEK GAS COM #007 | 6137 | Gas | Cancelled |
| MARTHA CREEK GAS COM #007 | 372171 | Oil | Active |
| MARTIN #001 | 6199 | Gas | Plugged (site released) |
| MARTIN #001 | 16696 | Oil | Plugged (site released) |
| MARTIN #002 | 14726 | Oil | Plugged (site released) |
| MARTIN #002 | 16696 | Oil | Plugged (not released) |
| MARTIN #003 | 14726 | Oil | Plugged (site released) |
| MARTIN #005 | 14726 | Oil | Plugged (site released) |
| MARTIN ARH #001 | 372290 | Gas | Active |
| MARTINEZ 31 FEDERAL # 001 | 330423 | Oil | Active |
| MARTY FEE NORTH 11 7 #001H | 372290 | Oil | New |
| MARTY FEE NORTH 11 7 #002H | 372290 | Oil | New |
| MARTY FEE SOUTH 11 7 #003H | 372290 | Oil | New |
| MARTY FEE SOUTH 11 7 #004H | 372290 | Oil | New |
| MARVEL FEE #001 | 246289 | Oil | Active |
| MARY AIV STATE #001 | 25575 | Salt Water Disposal | Plugged (site released) |
| MARY AIV STATE #002 | 25575 | Oil | Cancelled |
| MARY AIV STATE #003 | 7377 | Oil | Active |
| MARY AIV STATE #005 | 7377 | Oil | Active |
| MARY FED #3 | 7673 | Oil | Plugged (site released) |
| MARY FED #3 | 7673 | Oil | Plugged (site released) |
| MARY FED #4 | 7673 | Oil | Plugged (site released) |
| MARY FEDERAL #001 | 372098 | Gas | Plugged (site released) |
| MARY FEDERAL #002 | 333683 | Oil | Active |
| MARY FEDERAL #003 | 229137 | Oil | Cancelled |
| MARY FEDERAL #004 | 333683 | Oil | Active |
| MARY FEDERAL #005 | 330220 | Gas | Active |
| MARY LOU #001 | 372279 | Oil | Plugged (not released) |
| MARY LOU #002 | 372279 | Oil | Plugged (not released) |
| MARY LOU #004 | 372279 | Oil | Plugged (not released) |
| MARY LOU #005 | 372279 | Oil | Plugged (not released) |
| MARY WOLF STATE #001 | 10155 | Oil | Active |
| MARY WOLF STATE #002 | 10155 | Oil | Active |
| MARY WOLF STATE #003 | 10155 | Oil | Plugged (site released) |
| MARY WOLF STATE #004 | 10155 | Oil | Active |
| MAS VERDE 25 FEDERAL COM #701H | 7377 | Gas | Active |
| MASTELLER A #002 | 2035 | Oil | Plugged (site released) |
| MATCH BOX FEDERAL #001 | 330984 | Gas | Active |
| MATHEWS 16 STATE #001D | 7377 | Gas | Cancelled |
| MATLOCK AJW #001 | 372290 | Oil | Active |
| MATLOCK STATE COM #101H | 372290 | Oil | New |
| MATLOCK STATE COM #102H | 372290 | Oil | New |
| MATLOCK STATE COM #103H | 372290 | Oil | New |
| MATTER 1 FEDERAL #001 | 7377 | Oil | Cancelled |
| MATTHEWS 25 FEDERAL #001 | 330211 | Oil | Plugged (site released) |
| MATTHEWS 25 FEDERAL #002 | 372290 | Oil | Active |
| MATTHEWS 25 FEDERAL #003 | 372290 | Oil | Active |
| MATTHEWS 25 FEDERAL #004 | 330211 | Oil | Cancelled |
| MAUDE NORTH 12 11 #001H | 372290 | Oil | New |
| MAUDE NORTH 12 11 #002H | 372290 | Oil | New |
| MAUDE SOUTH 13 14 #003H | 372290 | Oil | New |
| MAUDE SOUTH 13 14 #004H | 372290 | Oil | New |
| MAVERICK 13 DM FED COM #001H | 14744 | Oil | Active |
| MAX FRIESS MA #001 | 269324 | Injection | Plugged (site released) |
| MAX FRIESS MA #002 | 329319 | Injection | Active |
| MAX FRIESS MA #003 | 6137 | Oil | Plugged (site released) |
| MAX FRIESS MA #004 | 329319 | Injection | Active |
| MAX FRIESS MA #005 | 269324 | Oil | Plugged (site released) |
| MAX FRIESS MA #006 | 329319 | Oil | Active |