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SUBSIDIARIES (Tables) | 12 Months Ended
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Dec. 31, 2018
Interests In Other Entities [Abstract] |
Disclosure of interests in subsidiaries | The following provides information about our partnership’s wholly-owned subsidiaries as of December 31, 2018 and 2017:
|  |  |  |  |  | Ownership interest (%)
|  |  |  | Country of incorporation |
Defined Name |  | Name of entity |  | 2018 |  | 2017
Transport |  |  |  |  |  |  |  |
Australian rail operation |  | Arc Infrastructure Holdings No. 1 Pty Ltd |  | Australia |  | 100 |  | 100
Energy |  |  |  |  |  |  |  |
Australian energy distribution operation |  | Tas Gas Networks Pty Ltd |  | Australia |  | 100 |  | 100
The following table presents details of non-wholly owned subsidiaries of our partnership:
|  |  |  |  |  | Effective Ownership Interest (%) |  | Voting interest (%)
|  |  |  | Country of incorporation |
Defined Name |  | Name of entity |  | 2018 |  | 2017 |  | 2018 |  | 2017
Utilities |  |  |  |  |  |  |  |  |  |  |  |
U.K. regulated distribution operation |  | BUUK Infrastructure Holdings Limited |  | U.K. |  | 80 |  | 80 |  | 80 |  | 80
Australian regulated terminal operation |  | DBCT Management Pty Ltd(1) |  | Australia |  | 71 |  | 71 |  | 100 |  | 100
Colombian regulated distribution operation |  | Empresa de Energia de Boyaca S.A.(1) |  | Colombia |  | 17 |  | 17 |  | 100 |  | 100
Brazilian regulated gas transmission operation |  | Nova Transportadora do Sudeste S.A. (1),(2) |  | Brazil |  | 28 |  | 28 |  | 90 |  | 90
Colombian natural gas distribution operation |  | Gas Natural, S.A. ESP(1),(2) |  | Colombia |  | 16 |  | — |  | 55 |  | —
Transport |  |  |  |  |  |  |  |  |  |  |  |
U.K. ports operation |  | Brookfield Port Acquisitions (UK) Limited(1) |  | U.K. |  | 59 |  | 59 |  | 100 |  | 100
Australian port operation |  | Linx Cargo Care Group Pty Ltd(1) |  | Australia |  | 27 |  | 27 |  | 67 |  | 67
Chilean toll roads |  | Sociedad Concesionaria Vespucio Norte Express S.A.(1) |  | Chile |  | 51 |  | 51 |  | 89 |  | 89
Indian toll roads |  | BIF India Holdings Pte Ltd(1) |  | Singapore |  | 40 |  | 40 |  | 93 |  | 93
Peruvian toll roads |  | Rutas de Lima S.A.C(1) |  | Peru |  | 17 |  | 17 |  | 57 |  | 57
Indian toll roads |  | Simhapuri Expressway Limited(1),(2) |  | India |  | 29 |  | — |  | 93 |  | —
Indian toll roads |  | Rayalseema Expressway Private Limited(1),(2) |  | India |  | 26 |  | — |  | 84 |  | —
Energy |  |  |  |  |  |  |  |  |  |  |  |
North American gas storage operation(6) |  | Warwick Gas Storage L.P. |  | Canada |  | 25 |  | 25 |  | 100 |  | 100
Canadian district energy operation |  | Enwave Energy Corporation |  | Canada |  | 25 |  | 25 |  | 100 |  | 100
U.S. district energy operation |  | Enwave USA |  | U.S. |  | 40 |  | 40 |  | 100 |  | 100
North American gas storage operation(6) |  | Lodi Gas Storage |  | U.S. |  | 40 |  | 40 |  | 100 |  | 100
North American gas storage operation(6) |  | Rockpoint Gas Storage Partners L.P. |  | U.S. |  | 40 |  | 40 |  | 100 |  | 100
Western Canadian natural gas gathering and processing operation |  | NorthRiver Midstream Inc.(1),(2) |  | Canada |  | 29 |  | — |  | 100 |  | —
North American residential energy infrastructure operation |  | Enercare Inc.(1),(2) |  | Canada |  | 30 |  | — |  | 100 |  | —
Data Infrastructure |  |  |  |  |  |  |  |  |  |  |  |
U.S. data center operation |  | Dawn Acquisitions LLC(1),(2) |  | U.S. |  | 29 |  | — |  | 100 |  | —
Corporate |  |  |  |  |  |  |  |  |  |  |  |
Holding LP |  | Brookfield Infrastructure L.P. |  | Bermuda |  | 70 |  | 70 |  | 100 |  | 100
(1) | For the above noted subsidiaries, our partnership has entered into voting arrangements to provide our partnership with the ability to direct the relevant activities of the investee. Our partnership controls these investees given that our partnership is exposed, or has rights, to variable returns from its involvement with the investee and has the ability to affect those returns through its power over the investee. Our partnership exercises judgment to determine the level of variability that will achieve control over an investee, particularly in circumstances where our partnership’s voting interest differs from its ownership interest in an investee. The following were considered to determine whether our partnership controls these investees: the degree of power (if any) held by other investors, the degree of exposure to variability of each investor, the determination of whether any general partner removal rights are substantive and the purpose and design of the investee.
(2) | See Note 6 Acquisition of Businesses for further details.

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