|ENTERPRISE PRODUCTS PARTNERS L P filed this Form 10-K on 02/28/2018|
The following table presents selected historical consolidated financial data of our partnership. This information has been derived from and should be read in conjunction with our audited financial statements included under Part II, Item 8 of this annual report, which presents our audited balance sheets as of December 31, 2017 and 2016 and related statements of consolidated operations, comprehensive income, cash flows and equity for the three years ended December 31, 2017, 2016 and 2015, respectively. As presented in the table, amounts are in millions (except per unit data).
Fluctuations in our consolidated revenues and cost of sales amounts are explained in large part by changes in energy commodity prices. Energy commodity prices fluctuate for a variety of reasons, including supply and demand imbalances and geopolitical tensions. For additional information regarding energy commodity prices, see “Selected Energy Commodity Price Data” included under Part II, Item 7 of this annual report. General information regarding our results of operations can also be found under Part II, Item 7 of this annual report.
Property, plant and equipment balances increased in each of the years presented due to our ongoing capital expenditure program, which includes business combinations such as EFS Midstream and Oiltanking. For information regarding our capital spending program, see “Capital Spending” included under Part II, Item 7 of this annual report. For information regarding our recent business combinations, see Note 12 of the Notes to Consolidated Financial Statements included under Part II, Item 8 of this annual report.
Investments in unconsolidated affiliates decreased in 2015 primarily due to the sale of our Offshore Business, which included a number of pipeline and platform joint ventures operating in the Gulf of Mexico. See Note 10 of the Notes to Consolidated Financial Statements included under Part II, Item 8 of this annual report for additional information regarding the sale of this business.