| 2015-10-08 | Joint reporting: Natural Gas Partners VIII, L.P.; Natural Gas Partners VII, L.P.; Montierra Management LLC; Montierra Minerals & Production, L.P.; NGP Income Management, L.L.C.; Eagle Rock Holdings NGP7, LLC; Eagle Rock Holdings NGP8, LLC; ERH NGP 7 SPV, LLC; ERH NGP 8 SPV, LLC; NGP Income Co-Investment Opportunities Fund II, L.P. | J | — |
| 2015-10-08 | Joint reporting: Natural Gas Partners VIII, L.P.; Natural Gas Partners VII, L.P.; Montierra Management LLC; Montierra Minerals & Production, L.P.; NGP Income Management, L.L.C.; Eagle Rock Holdings NGP7, LLC; Eagle Rock Holdings NGP8, LLC; ERH NGP 7 SPV, LLC; ERH NGP 8 SPV, LLC; NGP Income Co-Investment Opportunities Fund II, L.P. | J | — |
| 2015-10-08 | Joint reporting: Natural Gas Partners VIII, L.P.; Natural Gas Partners VII, L.P.; Montierra Management LLC; Montierra Minerals & Production, L.P.; NGP Income Management, L.L.C.; Eagle Rock Holdings NGP7, LLC; Eagle Rock Holdings NGP8, LLC; ERH NGP 7 SPV, LLC; ERH NGP 8 SPV, LLC; NGP Income Co-Investment Opportunities Fund II, L.P. | J | — |
| 2015-10-08 | Joint reporting: Natural Gas Partners VIII, L.P.; Natural Gas Partners VII, L.P.; Montierra Management LLC; Montierra Minerals & Production, L.P.; NGP Income Management, L.L.C.; Eagle Rock Holdings NGP7, LLC; Eagle Rock Holdings NGP8, LLC; ERH NGP 7 SPV, LLC; ERH NGP 8 SPV, LLC; NGP Income Co-Investment Opportunities Fund II, L.P. | J | — |
| 2015-10-08 | Joint reporting: Natural Gas Partners VIII, L.P.; Natural Gas Partners VII, L.P.; Montierra Management LLC; Montierra Minerals & Production, L.P.; NGP Income Management, L.L.C.; Eagle Rock Holdings NGP7, LLC; Eagle Rock Holdings NGP8, LLC; ERH NGP 7 SPV, LLC; ERH NGP 8 SPV, LLC; NGP Income Co-Investment Opportunities Fund II, L.P. | J | — |
| 2015-10-08 | Joint reporting: Natural Gas Partners VIII, L.P.; Natural Gas Partners VII, L.P.; Montierra Management LLC; Montierra Minerals & Production, L.P.; NGP Income Management, L.L.C.; Eagle Rock Holdings NGP7, LLC; Eagle Rock Holdings NGP8, LLC; ERH NGP 7 SPV, LLC; ERH NGP 8 SPV, LLC; NGP Income Co-Investment Opportunities Fund II, L.P. | J | — |
| 2015-10-08 | Joint reporting: Natural Gas Partners VIII, L.P.; Natural Gas Partners VII, L.P.; Montierra Management LLC; Montierra Minerals & Production, L.P.; NGP Income Management, L.L.C.; Eagle Rock Holdings NGP7, LLC; Eagle Rock Holdings NGP8, LLC; ERH NGP 7 SPV, LLC; ERH NGP 8 SPV, LLC; NGP Income Co-Investment Opportunities Fund II, L.P. | J | — |
| 2015-10-08 | Joint reporting: Natural Gas Partners VIII, L.P.; Natural Gas Partners VII, L.P.; Montierra Management LLC; Montierra Minerals & Production, L.P.; NGP Income Management, L.L.C.; Eagle Rock Holdings NGP7, LLC; Eagle Rock Holdings NGP8, LLC; ERH NGP 7 SPV, LLC; ERH NGP 8 SPV, LLC; NGP Income Co-Investment Opportunities Fund II, L.P. | J | — |
| 2015-10-08 | Joint reporting: Montierra Minerals & Production, L.P.; NGP Energy Capital Management, L.L.C. | J | — |
| 2015-10-08 | Joint reporting: Montierra Minerals & Production, L.P.; NGP Energy Capital Management, L.L.C. | J | — |
| 2015-10-08 | Joint reporting: Montierra Minerals & Production, L.P.; NGP Energy Capital Management, L.L.C. | J | — |
| 2015-10-08 | Joint reporting: Montierra Minerals & Production, L.P.; NGP Energy Capital Management, L.L.C. | J | — |
| 2015-10-08 | Joint reporting: Montierra Minerals & Production, L.P.; NGP Energy Capital Management, L.L.C. | J | — |
| 2015-10-08 | Joint reporting: Montierra Minerals & Production, L.P.; NGP Energy Capital Management, L.L.C. | J | — |
| 2015-10-08 | Joint reporting: Montierra Minerals & Production, L.P.; NGP Energy Capital Management, L.L.C. | J | — |
| 2015-10-08 | Joint reporting: Montierra Minerals & Production, L.P.; NGP Energy Capital Management, L.L.C. | J | — |
| 2015-10-08 | SMITH PHILIP B | D | — |
| 2015-10-08 | SMITH WILLIAM A | D | — |
| 2015-10-08 | HEEG PEGGY A | D | — |
| 2015-10-08 | WILLIAMSON HERBERT C III | D | — |