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| Entity Name | | Jurisdiction of Formation |
| ALTUS MIDSTREAM GATHERING LP | | Delaware |
| ALTUS MIDSTREAM NGL PIPELINE LP | | Delaware |
| ALTUS MIDSTREAM PIPELINE LP | | Delaware |
| ALTUS MIDSTREAM PROCESSING LP | | Delaware |
| ALTUS MIDSTREAM SUBSIDIARY GP LLC | | Delaware |
| BARILLA DRAW GATHERING, LLC | | Delaware |
| BCP MANAGEMENT SERVICES, LLC | | Delaware |
| BCP PHP INTERMEDIATE HOLDCO, LLC | | Delaware |
| BCP PHP, LLC | | Delaware |
| BCP RAPTOR HOLDCO GP, LLC | | Delaware |
| BCP RAPTOR HOLDCO, LP | | Delaware |
| BCP RAPTOR, LLC | | Delaware |
| BCP RAPTOR II, LLC | | Delaware |
| BCP RAPTOR III, LLC | | Delaware |
| BCP RAPTOR INTERMEDIATE HOLDCO, LLC | | Delaware |
| BCP RAPTOR INTERMEDIATE HOLDCO II, LLC | | Delaware |
| BCP RAPTOR INTERMEDIATE HOLDCO III, LLC | | Delaware |
| BCP RAPTOR MIDCO, LLC | | Delaware |
| BCP RESIDUE PIPECO, LLC | | Delaware |
| BRANDYWINE NGL, LLC | | Delaware |
| CR FIELD SERVICES, LLC | | Texas |
| CR PERMIAN CRUDE, LLC | | Texas |
| CR PERMIAN HOLDINGS, LLC | | Texas |
| CR PERMIAN NATURAL GAS TRANSMISSION, LLC | | Texas |
| CR PERMIAN PROCESSING LLC | | Texas |
| DELAWARE LINK VENTURES HOLDINGS, LLC | | Delaware |
| DELAWARE LINK VENTURES, LLC | | Delaware |
| DURANGO PERMIAN LLC | | Delaware |
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| EAGLECLAW MIDSTREAM VENTURES, LLC | | Delaware |
| EAGLECLAW TOYAH VENTURES HOLDINGS, LLC | | Delaware |
| EAGLECLAW TOYAH VENTURES, LLC | | Delaware |
| FFS FINANCIAL HOLDINGS, LLC | | Delaware |
| FRONTIER FIELD SERVICES, LLC | | Delaware |
| KINETIK BARILLA, LLC | | Delaware |
| KINETIK CRUDE MARKETING, LLC | | Delaware |
| KINETIK EC HOLDCO, LLC | | Delaware |
| KINETIK GAS GATHERING, LLC | | Delaware |
| KINETIK HOLDINGS GP LLC | | Delaware |
| KINETIK HOLDINGS INC. | | Delaware |
| KINETIK HOLDINGS LP | | Delaware |
| KINETIK INTRASTATE VENTURES, LLC | | Delaware |
| KINETIK MARKETING, LLC | | Delaware |
| KINETIK NGL, LLC | | Delaware |
| KINETIK NM GAS GATHERING, LLC | | Delaware |
| KINETIK PROCUREMENT COMPANY, LLC | | Delaware |
| KINETIK RECEIVABLES, LLC | | Delaware |
| PERMIAN GAS, LLC | | Delaware |
| PINNACLE MIDSTREAM, LLC | | Delaware |
| PINNACLE TRANSPECOS MIDSTREAM GAS, LLC | | Delaware |
| PINNACLE TRANSPECOS MIDSTREAM, LLC | | Delaware |
| PINNACLE TRANSPECOS PROCESSING, LLC | | Delaware |
| PINNACLE TRANSPECOS STABILIZATION, LLC | | Delaware |
| RC PERMIAN GATHERING, LLC | | Delaware |
| SIERRA GRANDE CONNECTOR, LLC | | Delaware |