Shareholder Early Warning News Release

CALGARY, Sept. 14, 2018 /CNW/ - AltaGas Ltd. (AltaGas) (TSX: ALA) filed an early warning report dated September 14, 2018 advising of a change in its holdings in Tidewater Midstream and Infrastructure Ltd. (the "Issuer").

AltaGas Processing Partnership ("APP"), a wholly owned subsidiary of AltaGas, sold 43,703,571 common shares of the Issuer (the "Tidewater Shares"), and is decreasing its securityholding percentage from approximately 13.3% to 0.0% of the Tidewater Shares.  The sale of the securities was pursuant to a share purchase agreement with Birch Hill Equity Partners Management Inc., as general partner on behalf of Birch Hill Equity Partners V, LP, Birch Hill Equity Partners (US) V, LP and Birch Hill Equity Partners (Entrepreneurs) V, LP. APP received cash consideration of $1.45 per Tidewater Share and aggregate cash consideration of $63,370,178.

APP sold the Tidewater Shares as part of the first phase of the sale of selected non-core smaller scale gas midstream and power assets in Canada, as well as AltaGas' commercial and industrial customer portfolio in Canada for aggregate purchase price of approximately $165 million. Closing of the second and final phase is subject to customary closing conditions, various National Energy Board approvals, the Competition Act, Canada Transport Act and various other provincial utilities' commission approvals, which are expected to be received by year-end. 

An early warning report will be electronically filed with the applicable securities commission in each jurisdiction where Tidewater is reporting and will be available on SEDAR at For further information or to obtain a copy of the early warning report, please contact Ashley Nuell at 1 877 691 7199.

About AltaGas
AltaGas is an energy infrastructure company with a focus on natural gas, power and regulated utilities. AltaGas creates value by growing and optimizing its energy infrastructure, including a focus on clean energy sources. For more information visit:

This news release contains forward-looking statements. When used in this news release, the words "may", "would", "could", "will", "intend", "plan", "anticipate", "believe", "seek", "propose", "estimate", "expect", and similar expressions, as they relate to AltaGas or an affiliate of AltaGas, are intended to identify forward-looking statements. In particular, this news release contains forward-looking statements with respect to, among other things, expected filings on SEDAR; receipt of required regulatory approvals; and the closing and timing of closing of the transaction. These statements involve known and unknown risks, uncertainties and other factors that may cause actual results or events to differ materially from those anticipated in such forward-looking statements. Such statements reflect AltaGas' current views with respect to future events based on certain material factors and assumptions and are subject to certain risks and uncertainties, including without limitation, changes in market competition, governmental or regulatory developments, general economic conditions and other factors set out in AltaGas' public disclosure documents. Many factors could cause AltaGas' actual results, performance or achievements to vary from those described in this news release, including without limitation those listed above. These factors should not be construed as exhaustive. Should one or more of these risks or uncertainties materialize, or should assumptions underlying forward-looking statements prove incorrect, actual results may vary materially from those described in this news release as intended, planned, anticipated, believed, sought, proposed, estimated or expected, and such forward-looking statements included in, or incorporated by reference in this news release, should not be unduly relied upon. Such statements speak only as of the date of this news release. AltaGas does not intend, and does not assume any obligation, to update these forward-looking statements. The forward-looking statements contained in this news release are expressly qualified by this cautionary statement.

SOURCE AltaGas Ltd.