• Gas Management Matters  On behalf of Nicor Gas, expert rebuttal and surrebuttal testimony was provided to explain the Company’s
           natural gas management and procurement practices during 2000 – 2002, when it operated under performance-based regulation. In a later
           proceeding, testimony regarding Nicor's management of aquifer storage fields and accounting for the gas quantities held for interstate and
           intrastate customers was provided for the 2003 gas cost reconciliation. See Illinois Commerce Commission Docket Nos. 01-0705, 02-0067,
           02-0725 consol.), and 03-0703.

    • Gas Transportation Rate Disputes On behalf of a shipper on an intrastate pipeline, submitted direct and rebuttal testimony in a private
             arbitration that addressed the typical costs included in pipeline transportation rates, and whether ad valorem surcharges on the value of the
             transportation service were properly included. Also provided testimony before the Maine Public Utilities commission regarding the
             ​appropriate rate to be charged for transportation service. This latter case is MPUC 2012-00598.
  • Pipeline Rate Cases  Served as a rebuttal witness on behalf of the PNGTS Shippers Group in the Portland Natural Gas Transmission
           System (PNGTS) rate cases (RP08-306-000 and RP10-729-000) filed at the Federal Energy Regulatory Commission . Provided
           competitive analyses of the pipeline systems serving the northeastern United States and risks faced by PNGTS due to changing market
           conditions, and testified that the decline in natural gas exports from western Canada would be replaced by additional production from the 
           Marcellus and Utica production zones..
  • Natural Gas Integrated Resource Plans  On behalf of a number of natural gas utilities, participated in the development of Integrated
           Resource Plans for natural gas resource portfolios, with a focus on identifying least-cost portfolios, describing methods for determining
           the avoided cost of gas, and modeling demand-side management measures as supply-side resources.