® February 25, 2014

®  February 25 th - IRP Schedule - Review of IRP Order - December 5 th Weather Event - Wexpro II - Master Planning of System

®  April 2 nd - Gas Control Coordination - Clean Air - Heating Season Review - Monticello Event

®  April 30 th - Annual Demand & Peak Day Forecasting (Impact of Energy Efficiency) - Report on Lakeside - Review RFP  June 25 th - Present IRP to Utah PSC

®  Wexpro Gas  Need for New Capacity  Impact of Energy Efficiency (EE) Programs on Peak Demand  Lost-and-Unaccounted for Gas (LAUF)

® Company Use – Compressors, etc. Loss due to tear-outs Lost and Unaccounted for Gas “The difference between the gas injected into a distribution system and the gas measured at customers’ meters.”

®  Pipe Leaks  Measurement Error - Temperature and pressure difference - Heat value conversion - Meter inaccuracies  Accounting error  Company use  Third-party damage  Cycle Billing  Consumption on inactive meters  Stolen Gas  “Blowdown”

® Total Recorded at City Gates Table 3.5 (page 3-9) in most recent IRP Recorded at customer meters What we know or can estimate LAUF

® YearLost & Unaccounted For Company Use Lost & Unaccounted For AGA Lost & Unaccounted for %3.43% %1.78% %1.06%1.53% %.28%1.18% %.49%.90% %.72% YearLost & Unaccounted For Company Use Lost & Unaccounted For %3.43% %1.78% %1.06% %.28% %.49% %.72%

® SourceCompany Action Pipe Leaks-Pipeline Integrity Program -Infrastructure replacement tracker Measurement Error-Meter testing program -Installing temperature- compensating meters -New temperature/elevation policy in 2010 Third-party damage-Larger penalties for line damage -Constant training of blue stakes employees Stolen Gas-Tamper proof meters -Automated checks in billing system (usage on inactive meters, etc)

® - December 4, December 5, 2013 Timely Nominations (Cycle 1) Sent by 10:30 am to the TSP by 10:45 am Scheduled at 3:30 pm 8:00 am GD2 Gas Flow Evening Nominations (Cycle 2) Sent by 5:00 pm to the TSP by 5:15 pm Confirmations by 8:00 pm Scheduled by 9:00 pm 8:00 am GD2 Gas Flow Intraday 1 Nominations (Cycle 3) Sent by 9:00 am to the TSP by 9:15 am Confirmations by 1:00 pm Scheduled by 1:00 pm 4:00 pm GD2 Gas Flow Intraday 2 Nominations (Cycle 4) Sent by 4:00 pm to the TSP by 4:15 pm Confirmations by 7:00 pm Scheduled by 8:00 pm 8:00 pm GD2 Gas Flow 10:00 am Nominations in for Dec 5 th (GD5) - 154,953 Dth Evening Noms for (GD5) - 139,945 Dth Reductions for (GD5) - 2,348 Dth 9:45 am QGC notified by QEP of cuts at Blacks Fork and Red Wash plants - QGC started working with scheduling to determine the extent of cuts for transportation customers 6:00 am – QGC Gas Supply notices reduced flow from Blacks Fork (Pipeviewer) 7:30 am QGC Gas Supply purchases gas (ID1) to make up for assumed cuts at Blacks Fork 8:30 am and 10:00 am LeRoy and Chalk Creek aquifers to withdrawal (Coalville was already on withdrawal) 12:00 pm - A list of customers that required reductions was sent to Questar Gas account representatives 1:00 pm - Official cut notifications were sent out to transportation customer’s agents as part of the confirmation of the ID1 cycle 7:00 pm - Questar Gas notified customers that they could resume usage to match their increased supply that was scheduled to arrive at 8pm. Gas Day 1 Gas Day 2 December 5, 2013

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®  What is the maximum manageable percentage of Wexpro production without excess gas?  What are the costs of excess Wexpro gas?  What percentage of Wexpro production causes significant increases in shut-ins?  How much Wexpro gas can feasibly be shut in?

®  Trail Unit II became a Wexpro II property as of February 1.  Wexpro and the Company are tracking and accounting for this property separately.  Coordinating to establish procedures to sell cost-of-service production  Potential properties may be available in this low-cost environment.