CHENIERE ENERGY, INC. AND SUBSIDIARIES NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—CONTINUED NOTE 17—NET INCOME (LOSS) PER SHARE ATTRIBUTABLE TO COMMON STOCKHOLDERS NOTE 18—LEASES The following table reconciles basic and diluted weighted average common shares outstanding for the years ended December 31, 2018, 2017 and 2016 (in millions, except per share data): Potentially dilutive securities that were not included in the diluted net income (loss) per share computations because their effects would have been anti-dilutive were as follows (in millions): During the years ended December 31, 2018, 2017 and 2016, we recognized rental expense for all operating leases of $335 million, $199 million and $86 million, respectively, related primarily to LNG vessel time charters, office space and land sites. Our land site leases for the Sabine Pass LNG terminal have initial terms varying up to 30 years with multiple options to renew up to an additional 60 years. Future annual minimum lease payments, excluding inflationary adjustments, for operating leases are as follows (in millions):  (1) Does not include 0.4 million shares, 0.2 million shares and 5.0 million shares for each of the years ended December 31, 2018, 2017 and 2016, of unvested stock because the performance conditions had not yet been satisfied as of December 31, 2018, 2017 and 2016, respectively. (2) Includes number of shares in aggregate issuable upon conversion of the 2021 Cheniere Convertible Unsecured Notes and the 2045 Cheniere Convertible Senior Notes. There were no shares included in the computation of diluted net income (loss) per share for the 2025 CCH HoldCo II Convertible Senior Notes because substantive non-market-based contingencies underlying the eligible conversion date have not been met as of December 31, 2018. (1) Includes certain lease option renewals that are reasonably assured and payments for certain non-lease components (2) Does not include $43 million in aggregate payments we will receive from our LNG vessel time charter subleases. 102 Year Ended December 31, 2018 2017 2016 Weighted average common shares outstanding: Basic 245.6 233.1 228.8 Dilutive unvested stock 2.4 — — Diluted 248.0 233.1 228.8 Basic net income (loss) per share attributable to common stockholders $ 1.92 $ (1.68 ) $ (2.67 ) Diluted net income (loss) per share attributable to common stockholders $ 1.90 $ (1.68) $ (2.67) Year Ended December 31, 2018 2017 2016 Unvested stock (1) 0.8 3.4 0.6 Convertible notes (2) 17.5 16.9 16.3 Total potentially dilutive common shares 18.3 20.3 16.9 Years Ending December 31, Operating Leases (1) 2019 (2) $ 380 2020 184 2021 238 2022 264 2023 264 Thereafter 999 Total $ 2,329