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•	Exhibit 12 - Computation of Ratio of Earnings to Fixed Charges

•	Exhibit 99.1

◦	Item 6. Selected Financial Data

◦	Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations

◦	Item 7A. Quantitative and Qualitative Disclosures About Market Risk

◦	Item 8. Financial Statements and Supplementary Data

•	Exhibit 101.INS - XBRL Instance Document.

•	Exhibit 101.SCH - XBRL Taxonomy Extension Schema.

•	Exhibit 101.CAL - XBRL Taxonomy Extension Calculation Linkbase.

•	Exhibit 101.DEF - XBRL Taxonomy Extension Definition Linkbase.

•	Exhibit 101.LAB - XBRL Taxonomy Extension Label Linkbase.

•	Exhibit 101.PRE - XBRL Taxonomy Extension Presentation Linkbase.

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•	Expected levels of cash distributions by Williams Partners L.P. (WPZ) with respect to general partner interests, incentive distribution rights, and limited partner interests;

•	Levels of dividends to stockholders;

•	Our future credit ratings;

•	Amounts and nature of future capital expenditures;

•	Expansion and growth of our business and operations

•	Financial condition and liquidity;

•	Business strategy;

•	Cash flow from operations or results of operations;

•	Seasonality of certain business components;

•	Natural gas, natural gas liquids and olefins supply, prices and demand;

•	Demand for our services.

•	Whether WPZ will produce sufficient cash flows to provide the level of cash distributions we expect;

•	Whether we are able to pay current and expected levels of dividends;

•	Availability of supplies, market demand, and volatility of prices;

•	Inflation, interest rates, fluctuation in foreign exchange rates, and general economic conditions (including future disruptions and volatility in the global credit markets and the impact of these events on our customers and suppliers);

•	The strength and financial resources of our competitors and the effects of competition;

•	Whether we are able to successfully identify, evaluate and execute investment opportunities;

•	Our ability to acquire new businesses and assets and successfully integrate those operations and assets into our existing businesses, as well as successfully expand our facilities;

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•	Development of alternative energy sources;

•	The impact of operational and development hazards and unforeseen interruptions;

•	Costs of, changes in, or the results of laws, government regulations (including safety and environmental regulations), environmental liabilities, litigation, and rate proceedings;

•	Our costs and funding obligations for defined benefit pension plans and other postretirement benefit plans;

•	Changes in maintenance and construction costs;

•	Changes in the current geopolitical situation;

•	Our exposure to the credit risk of our customers and counterparties;

•	Risks related to financing, including restrictions stemming from our debt agreements, future changes in our credit ratings, as well as the credit rating of WPZ as determined by nationally-recognized credit rating agencies and the availability and cost of capital;

•	The amount of cash distributions from and capital requirements of our investments and joint ventures in which we participate;

•	Risks associated with weather and natural phenomena, including climate conditions;

•	Acts of terrorism, including cybersecurity threats and related disruptions;

•	Additional risks described in our filings with the SEC.

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(a)	None

(b)	None

(c)	None

(d)	Exhibits.

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