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GrowSmart Summit

October, 2012

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Summit Utilities, Inc. (SUI) is a leader in the natural gas utility industry through its strategy of expanding natural gas distribution service to un-served areas.

SUI currently manages approximately $260M in assets through its subsidiaries in Colorado, Missouri and Maine.

SUI is wholly-owned by the Infrastructure Investments Fund, a private equity fund advised by JP Morgan Asset Management

Summit Utilities, Inc.(Holdings Company)

Colorado Natural Gas, Inc. (Distribution)

Summit Natural Gas of Missouri, Inc. (Distribution)

Summit Gas Transmission, Inc. (Transmission)

Summit Natural Gas of Maine, Inc.

(Distribution)

Wolf Creek Energy, LLC. (Gas Supply)

Summit Utilities Management Services, LLC

(Contract Services)

Infrastructure InvestmentFund(IIF)

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SUI Key Facts Summit Utilities, Inc. was formed in 2004 to be the holding company for the operating

utilities and related companies.

Colorado Natural Gas, Inc. (CNG) was founded in 1997 to provide natural gas service to the mountain communities west of Denver and Colorado Springs.

2012 customer count is 19,000 2012 natural gas throughput is over 1.7 billion cubic feet (BCF) Over 890 miles of natural gas mains installed since 1997

Summit Natural Gas of Missouri, Inc. was founded in 2004 when the municipal-owned gas systems in Gallatin and Hamilton, Missouri were purchased.

2012 customer count is approximately 15,000 2012 natural gas throughput is over 2.6 BCF in 2012 Over 400 miles of natural gas mains installed since 2004 Acquired the Southern Missouri Natural Gas system on January 1, 2012

Wolf Creek Energy, LLC, founded in 1997 provide gas procurement and supply services to the large transportation customers of Colorado Natural Gas, Inc.

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Summit Natural Gas of Maine

Summit Natural Gas of Maine, Inc. was founded in 2012 in order to pursue the opportunities we have identified in Maine: The Kennebec Valley:

15,000 homes and businesses on gas by the 4th year Savings to our customers of $40,000,000 per year

The Penobscot Valley and Aroostook County 10,000 homes and businesses on gas by the 4th year Savings to our customers of $25,000,000 per year

Rockland area and the Mid-Maine Coast Yarmouth, Falmouth, Cumberland

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21st Century Infrastructure: Key decisions today will impact our economy, environment and communities.  What’s ahead in broadband, natural gas lines and transmission lines for renewable electricity sources?

What's on the horizon at the intersection of Maine's economy, community, environment?

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Maine’s Economy

Natural Gas service will: Strengthen the competitive position of Maine

companies in the world markets Save 40% of heating costs relative to #2 Fuel Oil Bring approximately $10,000 of investment in the

utility for each customer Bring approximately $5,000 of additional work for

the HVAC industry for conversions from oil to gas Create hundreds of new jobs Reduce our dependence on foreign oil

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Maine’s Communities

Natural Gas service will: Reduce required government assistance (LIHEAP)

for heating assistance for low-income residents Reduce heavy truck traffic on our roads Increase local property tax revenues Lower operating costs for schools, hospitals, other

community buildings

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Maine’s Environment

Fuel Kg CO2 /mmbtu Percent Reduction     Residual Oil (#6) 78.80 33%Distillate Oil (#2 Heating Oil) 73.15 28%

Kerosene 72.31 27%Propane 63.10 16%

Natural Gas service will: Reduce the carbon footprint of all who convert from fuel

oil or propane

Reduce the potential for environmentally disastrous incidents from spills

Provide the infrastructure support for the conversion to natural gas fueled vehicles

Improve indoor air quality

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American Gas Association

The Promise of Natural Gas

• America has seen a fundamental shift in the natural gas marketplace

• Technological advances, a newly accessible and abundant domestic resource, and an extensive delivery infrastructure make natural gas the foundation fuel for our economy

• This abundance of home-grown natural gas provides an opportunity to satisfy significant new demand at affordable prices well into the future

The Promise of Natural Gas

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Domestic Abundance

Supporting Increases in Demand

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2022

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Natural Gas Use

Residential Commercial Industrial Power

Other LNG Net Exports

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10.0

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30.0

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Natural Gas Supply

Conventional Associated Coal Bed Methane Tight

Shale Pipeline Net Imports

Source: Wood Mackenzie Spring 2012.

A Future of Market Stability

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Relative natural gas market stability during the next ten years —an outlook that supports responsible resource development and reflects continued advancements in extraction and impacts technology

1997

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Henry Hub Spot Price$2011/MMBtu

Base Case

Historical Prices

High and Low De-mand

Source: Wood Mackenzie Spring 2012.

Investing in our Energy Future

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Southern Missouri Natural Gas

In 2011, SUMS took over management of the SMNG System Infill Project

$13MM project completed on time and under budget Original Scope 1775 new customers, currently

marketing has signed up 2086 new customers and 1800 new service lines have been installed