Kinder Morgan Inc. Energy | S&P 500 | KMI | | 2019 - 19,700,000 2020 - 18,700,000 2021 - 18,400,000 -7% | 2019 - 7,692,000 2020 - No data 2021 - No data No data | 2019 - 9,539 2020 - 6,255 2021 - 4,836 -49% | 2019 - 1,489,000 2020 - 1,208,000 2021 - 1,361,000 Fluctuating | 2019 - 242 2020 - 548 2021 - 503 Fluctuating | 2019 - 1.1 2020 - 1 2021 - 0.9 -18% |