QUESTAR CORP
10-K405, 1999-03-29
NATURAL GAS TRANSMISISON & DISTRIBUTION
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                SECURITIES AND EXCHANGE COMMISSION
                      Washington, D.C.  20549

                             FORM 10-K
(Mark One)
 [x] ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE 
     SECURITIES EXCHANGE ACT OF 1934 FOR THE FISCAL YEAR ENDED 
     DECEMBER 31, 1998 OR

 [ ] TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE 
     SECURITIES EXCHANGE ACT OF 1934 FOR THE TRANSITION PERIOD FROM 
     _____ TO _____.

                    Commission File No. 1-8796

                        QUESTAR CORPORATION
        (Exact name of registrant as specified in its charter)

     State of Utah                                     87-0407509
(State or other jurisdiction of                 (I.R.S. Employer 
 incorporation or organization)               Identification No.)

180 East 100 South, P.O. Box 45433, Salt Lake City, Utah 84145-0433
(Address of principal executive offices)               (Zip code)

Registrant's telephone number, including area code: (801) 324-5000

    SECURITIES REGISTERED PURSUANT TO SECTION 12(b) OF THE ACT:

                                         Name of each exchange on
          Title of each class                which registered    

          Common Stock, Without Par Value, withNew York Stock Exchange 
          Common Stock Purchase Rights 

    SECURITIES REGISTERED PURSUANT TO SECTION 12(g) OF THE ACT:

                               None

     Indicate by check mark whether the registrant (1) has filed all 
reports required to be filed by Section 13 or 15(d) of the Securities 
Exchange Act of 1934 during the preceding 12 months (or for such 
shorter period that the registrant was required to file such reports), 
and (2) has been subject to such filing requirements for the past 90 
days.  Yes   x                          No        

     Indicate by check mark if disclosure of delinquent filers 
pursuant to Item 405 of Regulation S-K is not contained herein and 
will not be contained, to the best of registrants' knowledge, in 
definitive proxy or information statements incorporated by reference 
in Part III of this Form 10-K or any amendment to this Form 10-K.   
[x]

     The aggregate market value of the registrant's common stock, 
without par value, held by nonaffiliates on March 1, 1999, was 
$1,450,204,572 (based on the closing price of such stock).

     On March 1, 1999, 82,660,389 shares of the registrant's common 
stock, without par value, were outstanding.  

Documents Incorporated by Reference.  Portions of the definitive Proxy 
Statement for the 1999 Annual Meeting of Stockholders are incorporated 
by reference into Part III.  The sections of the Proxy Statement 
labelled "Committee Report on Executive Compensation" and "Cumulative 
Total Shareholder Return" are expressly not incorporated into this 
document.


                         TABLE OF CONTENTS


Heading                                                      Page

                              PART I

Items 1.
and 2.    BUSINESS AND PROPERTIES
             General
             Market Resources, Exploration and Production 
             Market Resources, Wholesale Marketing
             Market Resources, Gathering and Processing
             Market Resources, General
             Regulated Services, Introduction
             Regulated Services, Retail Distribution
             Regulated Services, Transmission and Storage
             Other Operations
             Employees
             Environmental Matters
             Research and Development
             Oil and Gas Operations 
             
Item 3.   LEGAL PROCEEDINGS

Item 4.   SUBMISSION OF MATTERS TO A VOTE OF
          SECURITY HOLDERS

                              PART II

Item 5.   MARKET FOR REGISTRANT'S COMMON EQUITY
          AND RELATED STOCKHOLDER MATTERS

Item 6.   SELECTED FINANCIAL DATA

Item 7.   MANAGEMENT'S DISCUSSION AND ANALYSIS OF
          FINANCIAL CONDITION AND RESULTS OF
          OPERATION  

Item 8.   FINANCIAL STATEMENTS AND
          SUPPLEMENTARY DATA

Item 9.   CHANGES IN AND DISAGREEMENTS WITH 
          ACCOUNTANTS ON ACCOUNTING AND 
          FINANCIAL DISCLOSURE

                             PART III

Item 10.  DIRECTORS AND EXECUTIVE OFFICERS
          OF THE REGISTRANT

Item 11.  EXECUTIVE COMPENSATION

Item 12.  SECURITY OWNERSHIP OF CERTAIN BENEFICIAL
          OWNERS AND MANAGEMENT

Item 13.  CERTAIN RELATIONSHIPS AND RELATED
          TRANSACTIONS

                              PART IV

Item 14.  EXHIBITS, FINANCIAL STATEMENT SCHEDULES,
          AND REPORTS ON FORM 8-K

SIGNATURES 


                             FORM 10-K
                        ANNUAL REPORT, 1998

                              PART I

ITEMS 1. AND 2.  BUSINESS AND PROPERTIES

General

     Registrant Questar Corporation ("Questar" or "the Company") is an 
integrated energy services holding company.  It has two basic 
divisions, Market Resources and Regulated Services.  Market Resources 
engages in energy development and production; gas gathering and 
processing; and wholesale gas, electricity and hydrocarbon liquids 
trading.  Regulated Services conducts interstate gas transmission and 
storage activities and retail gas distribution services.  The Company 
is also involved in information and communication systems and 
technologies.  

     The Company was organized in 1984 and became a publicly held 
entity when the shareholders of Questar Gas Company (then known as 
Mountain Fuel Supply Company, "Questar Gas") approved a corporate 
reorganization.  Questar was created to provide organizational and 
financial flexibility and to achieve a more clearly defined separation 
of utility and nonutility activities.  Questar is a "holding company," 
as that term is defined in the Public Utility Holding Company Act of 
1935, because Questar Gas is a natural gas utility.  The Company, 
however, qualifies for and claims an exemption from provisions of such 
act applicable to registered holding companies.

     As is noted in the following organization chart, Questar's 
Regulated Services unit includes a subholding entity,Questar Regulated 
Services Company ("QRS"), Questar Gas, Questar Pipeline Company 
("Questar Pipeline") and Questar Energy Services, Inc. ("QES").  
Market Resources entities are owned through another subholding 
company, Questar Market Resources, Inc. ("QMR").  They include Wexpro 
Company ("Wexpro"), Celsius Energy Company ("Celsius"), and its 
Canadian subsidiary, Celsius Energy Resources Ltd. ("Celsius Ltd."), 
Questar Exploration and Production Company ("Questar E&P," formerly 
Universal Resources Corporation), Questar Gas Management Company 
("QGM"), Questar Energy Trading ("Questar Energy Trading"), and 
Questar URC Company ("Questar URC").  The Company's information and 
communication activities are conducted by Questar InfoComm, Inc. 
("Questar InfoComm").

                              
Questar Corporation
                              
     QuestarInfoComm, Inc.
      (Information,Communication, and Electronic
       Measurement Services)

     Questar Market Resources, Inc.
      (Subholding Company)

            Wexpro Company
             (Production)

            Questar Exploration and Production Company
             (Questar URC Company)
             (Exploration and Production)*

            Celsius Energy Company
             (Celsius Energy Resources Ltd.)
             (Exploration and Production)*

            Questar Energy Trading Company
             (Marketing)

            Questar Gas Management Company
             (Gathering and Processing)

     Questar Regulated Services Company
      (Subholding Company)
                                                        
            Questar Gas Company
             (Retail Distribution)

            Questar Pipeline Company
             (Transportation and Storage)

            Questar Energy Services Company
             (Retail Services)            

*Market Resources intends to merge Celsius Energy into Questar E&P.

     As an integrated provider of energy services, the Company
believes that its structure enhances its operating flexibility as 
traditional regulated activities (interstate transmission and storage 
and retail distribution) become deregulated and more competitive and 
as previously packaged services become unbundled.  Questar's 
integrated structure also enhances its financial strength by providing 
a balance between the stability of regulated operations and revenues 
associated with rate-base assets and the earnings growth potential of 
exploration and production operations, and wholesale marketing, 
gathering and processing.

     Questar intends to continue emphasizing the ownership of 
assets, reserves, pipelines, storage reservoirs, distribution 
systems, as it offers new and traditional services in a changed  
environment with different rules.  The Company has important
partnerships and joint venture arrangements and will continue
to pursue new alliances to strengthen its position and to
minimize its risks.

     Financial information concerning the Company's lines of business, 
including information relating to the amount of total revenues 
contributed by any class of similar products or services responsible 
for 10 percent or more of consolidated revenues, is presented in Note 
12 in the Notes to Consolidated Financial Statements.

     The Company's activities are discussed below.

Market Resources, Exploration and Production

     The Company has been in the exploration and production ("E&P") 
business since its organization in 1935.  Through the ensuing years, 
the Company's E&P activities have generated substantial economic 
benefits for the Company and its shareholders and customers and have 
expanded in size and geographic location.  The year 1998 was a 
difficult year for Questar's E&P operations, as reserve acquisitions 
and production increases could not compensate for the significant 
decrease in commodity prices.  The Company took a write-down at 
year-end 1998 for both Canadian and domestic operations.  The E&P 
group, however, did achieve its objective to purchase additional 
reserves with the HSRTW acquisition.

     The Company has five affiliates, Wexpro, Celsius, Celsius Ltd., 
Questar E&P, and Questar URC, that are directly engaged in E&P 
operations.  The division of activities into five companies is a 
result of historical developments.  All of the companies are managed 
by the same group of officers, although each also has a separate 
general manager.  Together, the companies form a unique E&P group that 
conducts a blended program of low-cost development drilling, low-risk 
reserve acquisition, and high-quality exploration.

     The E&P group also has a geographical balance and diversity, with 
Wexpro and Celsius located in the Rocky Mountain area, Celsius active 
in the Southwest, and Questar E&P and Questar URC concentrated in the 
Midcontinent area, including East Texas and the Upper Gulf Coast.  
Celsius Ltd. owns the Canadian assets acquired in 1996.

     Natural gas remains the primary focus of the Company's E&P 
operations.  As of year-end 1998, the Company had proved reserves 
(excluding Questar Gas's cost-of-service reserves) of 489.0 billion 
cubic feet ("Bcf") of gas and 16.4 million barrels ("MMBbls") of oil 
liquids, compared to 379.0 Bcf of gas and 17.5 MMBbls of oil as of the 
same date in 1997.  (Any references to oil in this report include 
natural gas liquids.)  Natural gas reserves constituted 83 percent of 
the Company's total nonutility reserves at year-end 1998, compared to 
78 percent at year-end 1997.  See "Oil and Gas Operations," a separate 
section of this report, for additional information concerning the 
Company's oil and gas activities on a consolidated basis.

     The E&P companies participated in 205 (gross) wells in 1998, 
compared to 235 wells in 1997.  The 205 wells were divided between 14 
exploratory wells and 191 development wells and included 114 gas 
wells, 43 oil wells, 23 dry holes and 25 wells in progress (waiting on 
completion or drilling) at year-end.  The overall drilling success in 
1998 was 87 percent.

     The E&P group continued to generate Section 29 tax credits during 
1998.  These tax credits are available for production from wells that 
meet specified criteria, including a requirement that drilling of the 
wells be commenced prior to January 1, 1993.  Properties are often 
referred to as "tight sands," coal seams," or low permeability 
formations from which it is generally more expensive to produce gas.  
During 1998, Celsius and Questar E&P recorded $5.7 million in Section 
29 credits.  (Wexpro does not have an economic interest in the 
cost-of-service gas produced from Questar Gas's properties.)  

     The production of oil and gas is subject to regulation by 
appropriate federal and state agencies.  In general, these regulatory 
agencies are authorized to make and enforce regulations to prevent 
waste of oil and gas, protect the correlative rights and opportunities 
to produce oil and gas by owners of a common reservoir, and protect 
the environment.  Many leases held or operated by the E&P group are 
federal leases subject to additional regulatory requirements.  Both 
federal and state agencies are imposing more restrictions on access to 
leasehold acreage, thereby increasing the planning time to obtain 
drilling permits and limiting the E&P group's flexibility to adapt 
quickly to circumstances.

     The following description of Questar's E&P group is bifurcated 
between Wexpro and the combined Celsius/Questar E&P.

     Wexpro Company.  Wexpro was incorporated in 1976 as a subsidiary 
of Questar Gas.  Questar Gas's efforts to transfer producing 
properties and leasehold acreage to Wexpro resulted in protracted 
regulatory proceedings and legal adjudications that ended with a 
court-approved settlement agreement that was effective August 1, 1981.

     Wexpro, unlike Celsius and Questar E&P, does not conduct 
exploratory operations and does not acquire leasehold acreage for 
exploration activities.  It conducts oil and gas development and 
production activities on certain producing properties located in the 
Rocky Mountain region under the terms of the settlement agreement. 
(The terms of the settlement agreement are described in Note 9 in the 
Notes to Consolidated Financial Statements.)  Wexpro produces gas from 
specified properties for Questar Gas and is reimbursed for its costs 
plus a return on its investment.  In connection with its successful 
development gas drilling, Wexpro charges Questar Gas for its costs 
plus a specified rate of return (currently 21.70 percent and adjusted 
annually based on a specified formula) on its net investment in such 
properties adjusted for working capital and deferred taxes.  At 
year-end 1998, Wexpro's investment (net of deferred income taxes) in 
cost-of-service operations was $97.6 million.  Under the terms of the 
settlement agreement, Wexpro bears all dry hole costs.  The settlement 
agreement is monitored by the Utah Division of Public Utilities and 
retained experts.

     The gas volumes produced by Wexpro for Questar Gas are reflected 
in the latter's rates at cost-of-service prices.  Cost-of-service gas 
(defined to include the gas attributable to royalty interest owners) 
produced by Wexpro satisfied 45 percent of Questar Gas's system 
requirements during 1998.  Questar Gas relies upon Wexpro's drilling 
program to develop the properties from which the cost-of-service gas 
is produced.  During 1998, the average wellhead cost of Questar Gas's 
cost-of-service gas was $1.54 per decatherm ("Dth"), which is lower 
than Questar Gas's average price for field-purchased gas.  

     Wexpro participates in drilling activities in response to the 
demands of other working interest owners, to protect its rights, and 
to meet the needs of Questar Gas.  Wexpro, in 1998, produced 37.5 
billion cubic feet equivalent ("Bcfe") of natural gas and liquids from 
Questar Gas's cost-of-service properties and added reserves of 40.2 
Bcfe through drilling activities and reserve estimate revisions.  
(These numbers do not include the related royalty gas.)  

     Wexpro, under the terms of the Wexpro agreement, owns 
oil-producing properties.  Under the terms of the settlement 
agreement, the revenues from the sale of crude oil produced from such 
properties are used to recover operating expenses and provide Wexpro 
with a return on its investment.  In addition, Wexpro receives 46 
percent of any residual income.  (The remaining income is received by 
Questar Gas and is used to reduce natural gas costs reflected in 
customer rates.)

     Wexpro has an ownership interest in the wells and appurtenant 
facilities related to its oil reservoirs and in the facilities that 
have been installed to develop and produce gas reservoirs described 
above since August 1, 1981 (a date specified by the settlement 
agreement referred to above).  Wexpro maintains an office in Rock 
Springs, Wyoming, in addition to its principal office in Salt Lake 
City, Utah.

     Celsius Energy Company/Questar E&P.  Celsius and Questar E&P are 
combined from an operating and financial perspective.  Historically, 
Celsius operated in the Rocky Mountain area and emphasized exploration 
and development opportunities while Questar E&P, acquired as an 
independent company in 1987, operated in the Midcontinent and 
emphasized development and acquisition opportunities.  Effective 
September 1, 1998, 150 Bcfe of proved oil and gas reserves located in 
the Midcontinent were added when HSRTW Inc. was acquired from HS 
Resources Inc. for $155 million.  The companies continue to maintain 
division offices in Denver, Colorado, Oklahoma City, Oklahoma, and 
Tulsa, Oklahoma. (As part of a reorganization, Celsius will be merged 
into Questar E&P.)

     Gas production increased from 47.4 Bcf in 1997 to 51.3 Bcf in 
1998.  The increase in production was attributable to the reserve 
acquisitions.  Celsius  and Questar E&P received an average selling 
price of $1.92 per thousand cubic feet ("Mcf") in 1998, compared to 
$1.89 per Mcf in 1997.  Gas production belonging to the two entities 
is produced from four separate gas producing  regions, the Midcontinent 
area, the San Juan Basin area, the Rocky Mountain area, and the 
western Canada area.  Production from each of these areas is generally 
priced below the Henry Hub pricing center in Louisiana, reflecting 
demand and access to transportation. 

     Gas prices remained volatile during 1998.  The Company hedges as 
much as 50 to 55 percent of its production in order to minimize the 
effect of price volatility on revenues.  Hedging activities are 
conducted by Questar Energy Trading.

     The E&P companies increase their activities and minimize their 
risks by finding partners that will drill wells on their acreage to 
acquire an interest in any resulting production.  An example of this 
kind of arrangement is a joint exploration program with Texaco 
Exploration and Production Company in the Ham's Fork region located in 
southwestern Wyoming.  Celsius was also involved with deep drilling 
activities conducted by Union Pacific Resources Company in the Brady 
unit in southwestern Wyoming.

     During 1998, the E&P companies, on a combined basis, produced 2.9 
MMBbls of oil, which is equivalent to its crude production in 1997.  
The production was sold at an average price of $12.69 per barrel in 
1998, compared to $18.29 per barrel in 1997.

     The E&P group adopted several cost-cutting measures in early 1999 
to respond to the low-price environment.  These measures included 
terminating 10 employees, freezing salaries for highly compensated 
employees, reducing market salary adjustments for other employees, and 
allowing exempt employees to reduce their hours and salaries by 10 
percent.  The Market Resources group is exploring additional 
cost-cutting measures, e.g., the integration of some administrative 
functions.  

Market Resources, Wholesale Marketing

     Questar Energy Trading conducts energy marketing activities.  It 
combines gas volumes purchased from third parties and equity 
production (production that is produced by affiliates) to build a 
flexible and reliable portfolio.  Questar Energy Trading aggregates 
supplies of natural gas for delivery to large customers, including 
industrial users, municipalities, and other marketing entities.  
During 1998, Questar Energy Trading marketed a total of 96.5 million 
decatherms ("MMDth") of natural gas, 2.3 MMBbls of liquids, and 
327,000 megawatt-hours of electricity and earned a gross profit margin 
of $2,470,000.  (The volumes and margins exclude affiliated 
production.)

     Questar Energy Trading uses derivatives as a risk management tool 
to provide price protection for physical transactions involving owned 
production and marketing purchases.  Questar Energy Trading hedges 
with a third party at least a portion of owned production and does so 
with a variety of contracts for different periods of time.  Questar 
Energy Trading does not engage in speculative hedging transitions.

     As a wholesale marketing entity, Questar Energy Trading 
concentrates on markets in the Pacific Northwest, Rocky Mountains, 
Midwest, and western Canada that are close to reserves owned by 
affiliates or accessible by major pipelines. 

     To sustain its activities in an increasingly competitive 
environment in which sellers and purchasers are becoming more 
sophisticated, Questar Energy Trading needs to expand its 
capabilities.  Through a limited liability company, Questar Energy 
Trading has a certificate issued by the Federal Energy Regulatory 
Commission ("FERC") to construct and operate an open-access storage 
reservoir in southwestern Wyoming adjacent to several interstate 
pipelines. It is also exploring partnerships with electricity 
providers and others to obtain additional expertise and access to 
sophisticated information technology.

Market Resources, Gathering and Processing

     QGM conducts gathering and processing activities in the Rocky 
Mountain and Midcontinent areas.  Its activities are not subject to 
regulation by the FERC.  QGM was originally established in 1993 to 
construct and operate the Blacks Fork processing plant in southwestern 
Wyoming.  It expanded in 1996 when Questar Pipeline spun down its 
gathering assets and activities.  QGM was then moved from Questar 
Pipeline to the Market Resources group in mid-1996 and acquired the 
processing plants that formerly belonged to Questar E&P and Celsius.

     QGM's gathering system, which consists of 1,400 miles of 
gathering lines, compressor stations, field dehydration plants, and 
measuring stations, was largely built to gather production from 
Questar Gas's cost-of-service properties.  During 1998, QGM gathered 
29.9 MMDth of natural gas for Questar Gas, compared to 28.5 MMDth in 
1997, for which it received $5 million in demand charges.  Under the 
terms of a contract that was assigned with the gathering assets from 
Questar Pipeline, QGM is obligated to gather Questar Gas's 
cost-of-service production for the life of the properties. 

     QGM's gathering system was originally built as a regulated asset; 
QGM now must operate in a different competitive environment.  Often, 
new wells will have connections with more than one gathering system, 
and producers insist that gathering systems be tied to more than one 
pipeline.  

     In addition to gathering activities, QGM is also engaged in 
processing activities.  It owns a 50 percent interest in the Blacks 
Fork processing plant, which has a total daily capacity of 84 million 
cubic feet ("MMcf").  This plant, which is located in southwestern 
Wyoming, strips liquids (e.g., ethane, butane) from natural gas 
volumes.  QGM and Wexpro jointly own a processing facility located in 
the Canyon Creek area of southwestern Wyoming that has a total 
operating capacity of 45 MMcf per day.  QGM also owns interests in 
other processing plants in the Rocky Mountain and MidContinent areas.

Market Resources, General

     Investment in Questar's Market Resources segment is growing 
faster than its Regulated Services segment.  The Company expects to 
spend more capital budget funds on this segment to expand reserves 
through acquisitions and drilling and to enlarge its infrastructure of 
gathering systems, processing plants, header facilities, and 
nonregulated storage facilities.  The volatility of commodity prices 
makes it imperative for the Market Resources group to manage risks and 
form strategic alliances.  This segment will continue to expand the 
scope of its activities and joint venture or alliance relationships.  
Questar expects this segment to account for at least 58 percent of 
corporate earnings by 2002.

     Although the activities of the Market Resources companies are 
diverse, they are complementary and support the Company's overall goal 
to build value with energy resources and services.  As the E&P 
companies find or acquire new reserves, QGM has more opportunities to 
expand gathering and processing activities, and Questar Energy Trading 
has more physical production to support its marketing programs.

Regulated Services, Introduction

     Questar's Regulated Services segment includes Questar Gas, a 
retail distribution utility; Questar Pipeline, an interstate pipeline; 
Questar Energy Services Inc. ("QES"), an entity engaged in retail 
energy services that was transferred by QMR effective January 1, 1999; 
and QRS, a subholding company that provides administrative services to 
all these entities.  All members of the Regulated Services group have 
common officers and share service functions, e.g., marketing, 
planning, business development, engineering, compensation, legal, 
regulatory affairs, accounting, and budgeting.  All Regulated Services 
employees share base and incentive compensation programs and are 
expected to work together to improve customer service and operating 
efficiency.  The integration of the entities has resulted in lower 
operating and maintenance costs and better coordination of activities 
and projects.  During 1998, the Regulated Services group offered an 
early retirement program to eligible employees.  Most of the 178 
employees accepting the program will not be replaced, resulting in 
lower labor and overhead costs.

Regulated Services, Retail Distribution

     Questar Gas distributes natural gas as a public utility in Utah, 
southwestern Wyoming, and a small portion of southeastern Idaho.  As 
of December 31, 1998, it was serving 663,392 sales and transportation 
customers, a 3.4 percent increase from the 641,696 customers as of 
year-end 1997.  (Customers are defined in terms of active meters.)

     Approximately 96 percent of Questar Gas's customers live in Utah.  
Questar Gas distributes gas to customers in the major populated areas 
of Utah, commonly referred to as the Wasatch Front in which the Salt 
Lake metropolitan area, Provo, Ogden, and Logan are located.  It also 
serves customers in eastern, central, and southwestern Utah with 
Price, Roosevelt, Fillmore, Richfield, Cedar City, and St. George as 
the primary cities.  Questar Gas supplies natural gas in the 
southwestern Wyoming communities of Rock Springs, Green River, and 
Evanston, and the southeastern Idaho community of Preston.  Questar 
Gas has the necessary regulatory approvals granted by the Public 
Service Commission of Utah ("PSCU"), the Public Service Commission of 
Wyoming ("PSCW"), and the Public Utilities Commission of Idaho 
("PUCI") to serve these areas.  It also has long-term franchises 
granted by communities and counties within its service area.

     Questar Gas added 21,696 customers in 1998, which was the fifth 
consecutive year in which it added at least 20,000 customers.  The 
customer growth reflects Utah's economic prosperity and continued 
in-migration.  Utah's population is growing faster than the national 
average, and Questar Gas expects to add 18,000-21,000 customers each 
year.

     Questar Gas's sales to residential and commercial customers are 
seasonal, with a substantial portion of such sales made during the 
heating season.  The typical residential customer in Utah (defined as 
a customer using 115 Dth per year) consumes over 75 percent of his 
total gas requirements in the coldest six months of the year.  Questar 
Gas's revenue forecasts used to set rates are based on normal 
temperatures.  As measured in degree days, temperatures in Questar 
Gas's service area were 6 percent warmer than normal in 1998, which 
was the fifth consecutive year in which temperatures have been warmer 
than normal.

     Questar Gas's sensitivity to weather and temperature conditions, 
however, has been ameliorated by adopting a weather normalization 
mechanism for its general service customers in Utah and Wyoming.  The 
mechanism, which has been in effect for 1997 and 1998, adjusts the 
non-gas portion of a customer's monthly bill as the actual degree days 
in the billing cycle are warmer or colder than normal. This mechanism 
reduces the sometimes dramatic fluctuations in any given customer's 
monthly bill from year to year.

     During 1998, Questar Gas sold 83.2 MMDth to residential and 
commercial customers, compared to 85.7 MMDth in 1997.  General service 
sales to residential and commercial customers were responsible for 89 
percent of Questar Gas's total revenues in 1998.

     Questar Gas has designed its distribution system and annual gas 
supply plan to handle design-day demand requirements.  It periodically 
updates its design-day demand, which is the volume of gas that firm 
customers could use during extremely cold weather.  For the 1998-99 
heating season, Questar Gas used a design-day demand of 977,251 Dth 
for firm sales customers.  Questar Gas is also obligated to have 
pipeline capacity, but not gas supply, for firm transportation 
customers.  Questar Gas's management believes that the distribution 
system is adequate to meet the demands of its firm customers.

     Questar Gas's total industrial deliveries, including both sales 
and transportation, increased from 60.8 MMDth in 1997 to 65.1 MMDth in 
1998, reflecting Utah's continued economic growth.

     Questar Gas has been providing transportation service since 1986.  
It has worked diligently to retain its transportation customers with 
cost-based rates.  Transportation service is attractive to customers 
that can buy volumes of gas directly from producers and have such 
volumes transported at aggregate prices lower than Questar Gas's sales 
rates.  

     Questar Gas's largest transportation customers, as measured by 
revenue contributions in 1998, are the Geneva Steel plant in Orem, 
Utah; the Kennecott copper processing operations, located in Salt Lake 
County; and the mineral extraction operations of Magnesium Corporation 
of America in Tooele County, west of Salt Lake City.

     Questar Gas's competitive position has been strengthened as a 
result of owning natural gas producing properties.  During 1998, it 
satisfied 45 percent of its system requirements with the 
cost-of-service gas produced from such properties.  These properties 
are operated by Wexpro, and the gas produced from such properties is 
transported by Questar Pipeline.  Questar Gas's investment in these 
properties is included in its utility rate base.    

     Questar Gas had reserves of 339.8 Bcf as of year-end 1998, 
compared to 336.9 Bcf as of year-end 1997.  (The reserve numbers do 
not include volumes attributable to royalty interests.)  The average 
wellhead cost associated with Questar Gas's cost-of-service reserves 
was below the cost of purchased.  During 1998, Questar Gas recorded 
$2.2 million in Section 29 tax credits associated with production from 
wells on its cost-of-service properties that qualify for such credits.  
Questar Gas believes that it is important to continue owning gas 
reserves, producing them in a manner that will serve the best 
interests of its customers, and satisfying a significant portion of 
its supply requirements with gas produced from such properties.

     Questar Gas uses storage capacity at Clay Basin to provide 
flexibility for handling gas volumes produced from cost-of-service 
properties.  It stores gas at Clay Basin during the summer and 
withdraws it during the heating season.

     Questar Gas has a balanced and diversified portfolio of gas 
supply contracts with suppliers located in the Rocky Mountain states 
of Wyoming, Colorado, and Utah.  It purchases gas on the spot market 
and under longer-term contracts, primarily during the winter heating 
season.  The contracts have market-price provisions and are either of 
short-term duration or renewable on an annual basis upon agreement of 
the parties.  Questar Gas's gas acquisition objective is to obtain 
reliable, diversified sources of gas supply at competitive prices.  In 
its latest semi-annual purchased-gas-cost filing, Questar Gas 
estimated that its average wellhead cost of field-purchased gas would 
be $1.92 per Dth for 1999.

     Questar Gas has historically enjoyed a favorable price comparison 
with all energy sources used by residential and commercial customers 
except coal and occasionally fuel oil.  This historic price advantage, 
together with the convenience and handling advantages associated with 
natural gas, has permitted Questar Gas to retain over 90 percent of 
the residential space and water heating markets in its service area 
and to distribute more energy, in terms of Btu content, than any other 
energy supplier to residential and commercial markets in Utah.  
Questar Gas has virtually 100 percent of the space heating and water 
heating offered in new homes within its service area.

     Although Questar Gas is a public utility and has no direct 
competition from other distributors of natural gas for residential and 
commercial customers, it competes with other energy sources.  Questar 
Gas continues to monitor its competitive position, in terms of 
commodity costs and efficiency of usage, with other energy sources.

     Questar Gas is also interested in Utah's economic development in 
order to enhance market growth and is encouraging the use of natural 
gas in additional appliances.  Most households in Questar Gas's 
service area already use natural gas for space and water heating.  Its 
market share for other gas appliances, e.g., ranges and dryers, has 
historically been less than 30 percent, which is significantly lower 
than its over 90 percent market share for furnaces and water heaters.  
Questar Gas has marketing campaigns to convince existing customers to 
take advantage of natural gas's lower prices and greater efficiency by 
converting other appliances to natural gas.  It also has marketing 
campaigns to encourage contractors to install the necessary lines for 
gas fireplaces, ranges, and dryers in new homes.  

     Questar Gas believes that it must maintain a competitive price 
advantage in order to retain its residential and commercial customers 
and to build incremental load by convincing current customers to 
convert additional appliances to natural gas.  Consequently, Questar 
Gas follows an annual gas supply plan that provides for a judicious 
balance between cost-of-service gas and purchased gas and that allows 
it to increase operating efficiency.  

     Questar Gas raised its rates for natural gas service in the fall 
of 1997 to reflect higher gas costs and to implement a special 
surcharge to collect a deficiency in its gas balance account.  The 
magnitude of this increase caused some customers to adjust their 
usage.  During the 1997-98 winter heating season, Questar Gas's net 
income was negatively affected by the impact of charging higher rates 
for natural gas.  On a temperature-adjusted basis, per-customer usage 
declined for the first time in several years, but stabilized later in 
1998.

     Questar Gas reduced its rates effective January 1, 1999, to 
reflect changes in natural gas costs and eliminate the special 
surcharge.  The typical residential customer in Utah would have an 
annual bill of $552.79, using rates in effect as of January 1, 1999, 
compared to an annual bill of $594.53, using rates in effect as of the 
same date in the prior year.

     The Kern River pipeline, which was built to transport gas from 
southwestern Wyoming to Kern County, California, runs through portions 
of Questar Gas's service area and provides an alternative delivery 
source for transportation customers.  As of the date of this report, 
Questar Gas has lost no industrial load as a result of the Kern River 
pipeline.  The existence of this interstate pipeline system has made 
it possible for Questar Gas to extend service into a new area in Utah 
and to develop a second source of supply for its central and its 
southern Utah system.  Questar Gas has a tap on the Kern River line in 
Salt Lake County for the delivery of additional peak-day supplies to 
meet increasing demand.

     Questar Gas and all other local distribution companies are faced 
with the challenges and opportunities posed by the unbundling and 
restructuring of traditional utility services.  As a local 
distribution company, Questar Gas owns and controls the lines through 
which gas is delivered, is the only supplier of natural gas to 
residential customers, measures the consumption of gas used by its 
customers, and bills for consumption and related services.  The 
services provided by Questar Gas are packaged and priced as a 
"bundle."  Most unbundling discussions focus on extending residential 
and commercial customers the same choices provided industrial 
customers, i.e., allowing them to separate the commodity supply from 
the transportation service.  (Industrial customers have enjoyed the 
benefit of supplier choice for over 10 years.)

     Questar Gas has been reviewing the opportunities and risks 
associated with unbundling and believes that it is well-positioned to 
succeed in a competitive environment.  Questar Gas is accurately 
described as an efficient local distribution company.  It increased 
the number of customers served per employee from 475 in 1997 to 537 in 
1998.  Its operating efficiency is buttressed by owning the reserves 
to meet 40-50 percent of its current demand and by having storage 
capacity to balance the relationship between production of its 
reserves and seasonal demands of residential customers.

     Questar Gas and other retail distribution companies have been 
subject to governmental regulation as a substitute for competition.  
Other industries, airline, trucking, telecommunication, financial 
service, and interstate pipeline, have been and are being deregulated, 
and competitive market forces are forcing these industries to focus on 
operating efficiency.  The substitution of competition for regulation 
has caused Questar Gas and other distribution companies to continue to 
review their costs and reexamine their commitment to sales service.

     Questar Gas offers its Wyoming customers a "supplier choice" 
program that was approved by the PSCW in 1998.  Under the terms of 
this program, general service customers in Wyoming have the option of 
selecting a different supplier of natural gas while purchasing 
transportation and associated services from Questar Gas.  During the 
program's initial open-season, which was conducted in the spring of 
1998, no other supplier offered to provide service under the program.  
Questar Gas expects to continue offering the program to its Wyoming 
customers and hopes that it will provide valuable information about 
customer preferences.

     The state of Utah and the PSCU are actively involved in reviewing 
the restructuring and unbundling of telephone and electric utility 
services.  Questar Gas anticipates that electric utility service will 
be unbundled before retail gas distribution service.  Given its 
attractive rates and high customer service ratings, Questar Gas does 
not believe that its residential customers will push for rapid 
unbundling in Utah.

     As a public utility, Questar Gas is subject to the jurisdiction 
of the PSCU and PSCW.  (Questar Gas's customers in Idaho are served 
under the provisions of its Utah tariff.  Pursuant to a special 
contract between the PUCI and the PSCU, rates for Questar Gas's Idaho 
customers are regulated by the PSCU.)  Questar Gas's natural gas sales 
and transportation services are made under rate schedules approved by 
the two regulatory commissions.  

     Questar Gas has consistently endeavored to balance the costs of 
adding more than 20,000 customers each year with the cost savings 
associated with reducing labor costs, consolidating activities, and 
utilizing new technology.  Questar Gas does not expect to file a 
general rate case application with the PSCU or the PSCW in 1999.  It 
is currently authorized to earn a return on rate base of 10.4 percent 
in Wyoming and 10.22 to 10.34 percent in Utah.

     Both the PSCU and the PSCW have authorized Questar Gas to use a 
balancing account procedure for changes in the cost of natural gas, 
including supplier non-gas costs, and to reflect changes on at least a 
semi-annual basis.  Questar Gas received regulatory approval from the 
PSCU and PSCW to decrease its rates effective  January 1, 1999.  New 
rates for Utah customers reflect a gas-cost component of $2.78 per 
Dth, compared to $3.20 per Dth for the prior period; rates for Wyoming 
customers reflect a gas-cost component of $2.63 per Dth compared to 
$2.88 per Dth.  (The gas-cost numbers include storage and 
transportation costs.)

     The PSCU, by order December 31, 1998, settled claims raised by 
the Division of Public Utilities ("Division"), a Utah state agency, 
concerning the rates paid by Questar Gas for gathering services 
provided by QGM.  The Division claimed that a reduction in gathering 
rates that was effective September 1, 1997, should be extended 
retroactively to March of 1996, when Questar Pipeline transferred the 
gathering assets to QGM.  The PSCU ruled against the Division's 
claims, which involved approximately $7.6 million plus interest in 
potential refunds.

     Questar Gas owns and operates distribution systems throughout its 
Utah, Wyoming and Idaho service areas and has a total of 19,976 miles 
of street mains, service lines, and interconnecting pipelines.  
Questar Gas has consolidated many of its activities in its operations 
center, warehouse and garage located in Salt Lake City, Utah.  It also 
owns operations centers, field offices, and service center facilities 
throughout other parts of its service area.  The mains and service 
lines are constructed pursuant to franchise agreements or 
rights-of-way.  Questar Gas has fee title to the properties on which 
its operation and service centers are constructed.  

Regulated Services, Transmission and Storage

     Questar Pipeline is an interstate pipeline company that is 
engaged in the transportation and storage of natural gas in the Rocky 
Mountain states of Utah, Wyoming and Colorado.  As a "natural gas 
company" under the Natural Gas Act of 1938, Questar Pipeline is 
subject to regulation by the FERC as to rates and charges for storage 
and transportation of gas in interstate commerce, construction of new 
facilities, extensions or abandonments of service and facilities, 
accounts and records, and depreciation and amortization policies.  
Questar Pipeline holds certificates of public convenience and 
necessity granted by the FERC for the transportation and underground 
storage of natural gas in interstate commerce and for the facilities 
required to perform such operations.

     Questar Pipeline, as an open-access pipeline, transports gas for 
affiliated and unaffiliated customers.  It also owns and operates the 
Clay Basin storage facility, which is a large underground storage 
project in northeastern Utah, and other underground storage operations 
in Utah and Wyoming.  Questar Pipeline has a 54 percent ownership 
interest in Overthrust Pipeline Company ("Overthrust") and, through a 
subsidiary, a 50 percent ownership interest in TransColorado Gas 
Transmission Company ("TransColorado").

     During 1998, Questar Pipeline significantly expanded its 
potential transportation capacity.  As equal partners, wholly-owned 
subsidiaries of Questar Pipeline and KN Energy built the TransColorado 
pipeline project, which is a 292-mile pipeline that runs from 
northwestern Colorado to northern New Mexico.  Questar Pipeline also 
acquired a 700-mile crude oil pipeline that extends from northern New 
Mexico to southern California, renamed it "Southern Trails," and 
commenced the necessary regulatory and environmental proceedings to 
convert the line to transport natural gas.

     As an open-access pipeline, Questar Pipeline transports gas for 
affiliated and unaffiliated customers.  It also owns and operates the 
Clay Basin storage facility, which is a large underground storage 
project in northeastern Utah, and other underground storage operations 
in Utah and Wyoming.  

     Questar Pipeline's transmission system is strategically located 
in the Rocky Mountain area near large reserves of natural gas.  It is 
referred to as a "hub and spoke" system, rather than a "long-line" 
pipeline, because of its physical configuration, multiple connections 
to other major pipeline systems and access to major producing areas.  
Questar Pipeline's transmission system connects with the transmission 
systems of Colorado Interstate Gas Company ("CIG"), the middle segment 
(commonly referred to as the "WIC segment") of the Trailblazer 
pipeline system, The Williams Companies, Inc. ("Williams") including 
Kern River Gas Transmission Company ("Kern River"), and TransColorado.  
These connections provide access to markets outside Questar Gas's 
service area and allow Questar Pipeline to transport gas for 
nonaffiliated customers.

     Questar Pipeline's transmission system includes 1,726 miles of 
transmission lines that interconnect with other pipelines and link 
producers of natural gas with Questar Gas's distribution operations in 
Utah and Wyoming.  (The transmission mileage figure includes lines at 
storage fields and tap lines used to serve Questar Gas.)  This system 
includes two major segments, often referred to as the northern and 
southern systems; the northern system segment extends from 
northwestern Colorado through southwestern Wyoming into northern Utah, 
and the southern system segment extends from western Colorado to 
Payson in central Utah.  The two portions are linked together and have 
significant connections with other pipeline systems, making it a fully 
integrated system.

     Questar Pipeline's largest transportation customer is Questar 
Gas.  During 1998, Questar Pipeline transported 107.5 MMDth for 
Questar Gas, compared to 110.3 MMDth in 1997.  These transportation 
volumes include cost-of-service gas produced by Wexpro on properties 
owned by Questar Gas, as well as some volumes purchased by Questar Gas 
directly from field producers.  

     Questar Gas has a reserved firm transportation capacity of about 
800,000 Dth per day, or 74 percent of Questar Pipeline's reserved 
capacity.  Questar Gas paid reservation charges of $50.7 million to 
Questar Pipeline in 1998;  these charges include reservation charges 
attributable to firm and "no-notice" transportation.  Questar Gas only 
needs its total reserved capacity during peak-demand situations.  When 
it is not fully utilizing such capacity, Questar Gas releases it to 
others, primarily industrial transportation customers and marketing 
entities, and receives revenue credits from Questar Pipeline.

     Questar Pipeline's transportation agreement with Questar Gas 
expires on June 30, 1999.  The parties have agreed to extend the 
contract for three years, reflecting Questar Gas's growing design-day 
requirements and Questar Pipeline's competitive transportation rates.  

     Questar Pipeline recovers approximately 95 percent of its 
transmission cost of service through demand charges from firm 
transportation customers.  In other words, these customers pay 
primarily for access to transportation capacity, rather than on the 
basis of volumes actually transported.  Consequently, Questar 
Pipeline's throughput volumes do not have a significant effect on its 
short-term operating results.  Questar Pipeline's transportation 
revenues are not significantly impacted by fluctuating demand based on 
the vagaries of weather or natural gas prices.  Questar Pipeline's 
revenues may be adversely affected if the FERC changes its basic 
regulatory scheme of "straight fixed-variable" rates.

     Questar Pipeline's total system throughput decreased from 264.3 
MMDth in 1997 to 255.1 MMDth in 1998.  This decrease was primarily 
attributable to lower transportation volumes for affiliated customers, 
which declined from 148.1 MMDth in 1997 to 134.4 MMDth in 1998.  
Despite this decrease in volumes, Questar Pipeline's transportation 
revenues increased by 3 percent between two years, from $68.8 million 
in 1997 to $70.8 million in 1998.

     Questar Pipeline's transmission system is an open-access system 
and has been since September of 1988.  The FERC's Order No. 636 and 
Questar Pipeline's tariff provisions based on Order No. 636 require it 
to transport gas on a nondiscriminatory basis when it has available 
transportation capacity.  Questar Pipeline does have limited 
opportunities for interruptible transportation service.

     Questar Pipeline will continue to develop and build new lines and 
related facilities that will allow it to meet customer needs or 
improve transportation services.  During 1998, Questar Pipeline 
completed a project begun in 1997 to build a 20-inch diameter line 
extending from Clay Basin to Coleman Compressor Station in 
southwestern Wyoming, which added 88 thousand decatherms ("MDth") of 
firm capacity, in 1998.  The project significantly expanded Questar 
Pipeline's capacity to move gas north from its storage facility at 
Clay Basin and its southern system.  Questar Pipeline also installed 
new compression facilities on its southern system near Price, Utah.  
The new facilities, referred to as the Oak Spring compression 
facilities, added approximately 52 MDth of firm capacity.

     In addition to the transmission system described above, Questar 
Pipeline has a 54 percent interest and is the operating partner in 
Overthrust, a general partnership that owns and operates the 
Overthrust segment of Trailblazer.  Trailblazer, in turn, is a major 
800-mile line that transports gas from producing areas in the Rocky 
Mountains to the Midwest.  The 88-mile Overthrust segment is the 
western-most of Trailblazer's three segments.  Although the Overthrust 
segment is currently underutilized, Questar Pipeline and its remaining 
partners are reviewing opportunities, including backhauling, to 
increase its value.

     The Kern River pipeline, which is currently owned by Williams, 
was built to transport gas from Wyoming to the enhanced oil recovery 
projects in Kern County, California.  It runs through Utah's Wasatch 
Front, making it possible for some large industrial customers to 
bypass both Questar Gas and Questar Pipeline by buying transportation 
service on Kern River.  The Kern River line has diverted some 
transportation volumes from both Questar Pipeline and Overthrust.  The 
Kern River line, on the other hand, has also provided Questar Pipeline 
with opportunities to make additional connections with outside 
markets.

     Questar Pipeline's Clay Basin storage facility in northeastern 
Utah is the largest underground storage reservoir in the Rocky 
Mountains.  During 1998, storage capacity was expanded by 5 Bcf of 
working gas and 2.5 Bcf of cushion gas, bringing total capacity to 
117.5 Bcf.  Clay Basin has been operational since 1977 and has been 
successfully expanded several times.  

     Questar Pipeline owns and operates a major compressor complex 
near Rock Springs, Wyoming, that compresses volumes of gas from the 
transmission system for delivery to the WIC segment of the Trailblazer 
system and to CIG.  The complex has become a major delivery point on 
Questar Pipeline's system, with five of its major natural gas lines 
connected to the system at the complex.  In addition, both of CIG's 
Wyoming pipelines and the WIC segment are connected to the complex.

     April 1, 1999 is the scheduled start-up date for the 
TransColorado pipeline project.  This $295 million project, which was 
originally announced in 1990, has a design capacity of 300 MMcf, but 
will operate on a reduced basis until market demand improves and 
additional facilities are installed.  The line originates at a point 
on Questar Pipeline's system 25 miles east of Rangely in northwestern 
Colorado and extends 292 miles to the Blanco hub in northwestern New 
Mexico.  It was constructed to transport natural gas from the Rocky 
Mountain area that was traditionally priced lower than other gas 
supplies, e.g., San Juan, to California and Midwestern markets through 
interconnections with major pipeline systems.  At the current time, 
natural gas prices and the resulting lack of basis differentials 
between Rocky Mountain production and San Juan production will require 
the TransColorado partners to discount transportation rates.

     Questar Pipeline acquired a 700-mile, 16-inch diameter oil 
pipeline from ARCO Pipeline Company during 1998.  This line extends 
from the Four Corners area where the states of Arizona, New Mexico, 
Colorado, and Utah meet to Long Beach, California.  After acquiring 
the line, the Questar Pipeline renamed it Southern Trails, conducted 
an open season to gauge customer interest, and filed the necessary 
application to obtain FERC certification.  Converting the line to 
natural gas will require extensive environmental review.  Questar 
Pipeline is handling the project on an expedited basis and expects the 
line to be in service by mid-2000.  Questar Pipeline believes that 
completion of the Southern Trails conversion will improve the ability 
to market capacity on TransColorado.

     Storage service is important to parties that need a "shock 
absorber" to balance purchases with fluctuating customer demand, 
improve service reliability, and avoid imbalance penalties.  The 
storage capacity at Clay Basin is fully subscribed by customers under 
long-term agreements.  Questar Gas currently has 13.3 Bcf of working 
gas capacity at Clay Basin.  Other large customers, in addition to 
Questar Gas, include Williams; Washington Natural Gas Company, a 
utility in the state of Washington; and BC Gas Utility Ltd., a 
distribution utility in British Columbia, Canada.

     Questar Pipeline also offers interruptible storage service at 
Clay Basin and allows firm storage service customers the right to 
transfer their injection and withdrawal rights to other parties.

     Questar Pipeline does not currently plan to file a general rate 
case in 1999 and has no open rate case issues before the FERC.  It, 
however, will continue to review its revenues and costs as it adds new 
facilities that are not included in its rate base and makes 
expenditures to comply with regulatory mandates.

     In July of 1998, the FERC issued a Notice of Proposed Rulemaking 
("NOPR") in Docket No. RM98-10-000, seeking comments on a wide range 
of issues relating to competition in short-term transportation 
markets.  The NOPR includes proposed rules requiring pipelines to 
report and auction all unused daily capacity and to provide shippers 
with greater operational flexibility.  In a companion Notice of 
Inquiry issued at the same time, the FERC proposed permitting 
incentive-based rate alternatives to cost-based rates for long-term 
service.  Both regulatory initiatives indicate that the FERC is 
continuing to push for even-greater competitive conditions within the 
transportation industry and to view transportation capacity as a 
commodity, even as it proposes additional regulations for 
jurisdictional pipelines.  Questar Pipeline is closely monitoring the 
FERC's rulemaking proceedings, but maintains that it is premature to 
speculate concerning the final rules and to measure their impact on 
its operations.

     Questar Pipeline recently amended its FERC application for the 
Southern Trails project to request "optional" certification because it 
did not demonstrate, to the immediate satisfaction of the FERC staff, 
sufficient evidence of market support for the project, i.e., signed 
contracts with shippers, and did not want to delay commencement of the 
necessary regulatory and environmental review.  When proposing and 
building new pipeline projects under the optional-certificate, Questar 
Pipeline is generally at full-risk for changes in market conditions.

     Competition for Questar Pipeline's transportation and storage 
services has intensified in recent years.  Regulatory changes have 
significantly increased customer flexibility and increased the risks 
associated with new projects.  Questar Pipeline has two key assets 
that contribute to its continued success.  It has a strategically 
located and integrated transmission system with interconnections to 
major pipeline systems and with access to major producing areas and 
markets.  Questar Pipeline's Clay Basin storage facility has been 
expanded in response to customer interest.  Questar Pipeline intends 
to take advantage of these assets by increasing its "intra-hub 
capacity" or its ability to quickly and reliably move gas between 
+receipt and delivery points and by expanding its storage capacity and 
services.

     Questar Pipeline has a strong commitment to increase its 
footprint in other parts of the western United States as witnessed by 
its participation in the TransColorado pipeline project and by its 
acquisition of direct transportation capacity that reaches California 
markets.  Questar Pipeline's ability to compete with other pipelines 
is affected by natural gas prices in the supply basins connected to 
its pipeline system compared to prices in other basins connected to 
competing pipelines.  Questar Pipeline's ability to contract with 
industrial customers in California for capacity on the Southern Trails 
line is affected by regulatory provisions that protect local 
distribution companies in California.  Questar Pipeline's future 
success in new markets may be affected by its ability to compete with 
other entities that are often larger and possess greater resources.

Other Operations

     In addition to the two primary segments of Market Resources and 
Regulated Services, Questar has "other operations."  This group 
includes Questar InfoComm, which is a full-service provider of 
integrated information and communication services to affiliates and 
external businesses; miscellaneous real estate activities; and the 
ownership of stock issued by Nextel Communications Inc. ("Nextel").

     Questar InfoComm provides information, communication, and 
electronic measurement services.  It operates a regional microwave 
system that covers much of Utah and southwestern Wyoming.  This 
digital system was originally built to satisfy the needs of Questar's 
operations, but also carries data for alternative telephone providers 
and other external customers.  Questar InfoComm installs and maintains 
telephone-switching equipment and voice-mail systems.  It built and 
leases a fiber optic telephone network in parts of Salt Lake City for 
an alternative telephone provider, NextLink Communications, and owns 
shares of stock issued by NextLink.  

     Questar InfoComm also owns and operates the Business Continuity 
Center, which is a 22,800 square-foot facility in Salt Lake City 
designed to protect critical communication and data processing 
equipment in the event of a natural disaster.  Although built to allow 
Questar companies to continue vital operations, the facility 
accommodates other tenants that have the same need to safeguard 
information and equipment.  

     During 1998, Questar InfoComm acquired Baseline Industries, Inc. 
("Baseline"), a Colorado-based developer and manufacturer of 
gas-analysis systems.  The purchase supports Questar InfoComm's 
strategy to expand its gas-analysis expertise and applied technology 
services.  Questar InfoComm recently acquired an equity interest in 
ParkerVision, a Florida-based firm that develops wireless technology 
and audiovisual products.  Questar InfoComm is working with 
ParkerVision to develop new communications systems for the energy 
industry using new wireless radio technology.

     Through an affiliate, Questar also owns 14.5 acres of commercial 
real estate in Salt Lake County that was the site of the Wasatch 
Chemical clean-up activities.  See Legal Proceedings.  Although the 
Company intends to continue owning the property to minimize any future 
problems associated with environmental compliance, it believes that 
the property can earn attractive returns when leased.

     As of the date of this report, Questar retains approximately 1.5 
million shares of stock issued by Nextel, an international wireless 
communication company.  The Company acquired this stock in 1994 when 
it sold Questar Telecom, a specialized mobile radio subsidiary, to 
Nextel.  Questar has sold approximately 2.4 million of its original 
3.9 million shares and intends to continue selling such stock when 
market conditions are favorable.

     During 1998, Questar sold its office building in downtown Salt 
Lake City that had recently been remodeled, enlarged, and upgraded 
from a seismic protection perspective.  The Company has leased the 
building through 2012 and has 800 employees in the building.  Questar 
continues to own property adjacent to the building that is currently 
used for parking and will continue to review proposals to develop it.

Employees

     As of December 31, 1998, Questar and its affiliates had 2,338 
employees compared to 2,437 at year-end 1997.  Of this total, 1,509 
worked for the Regulated Services segment, 425 worked for Market 
Resources entities, and 404 worked for corporate, Questar InfoComm, 
and Baseline.  None of these employees is represented under collective 
bargaining agreements.  Questar has comprehensive benefit plans for 
its employees.  Employee relations are generally deemed to be 
satisfactory.

Environmental Matters

     Questar and its affiliates are subject to the National 
Environmental Policy Act and other federal and state legislation 
regulating the environmental aspects of their businesses.  During 
1998, Questar continued to be involved in actions involving local and 
federal environmental enforcement agencies and allegations of 
"hazardous waste" problems.  QMR's liability for contamination is 
described in "Legal Proceedings".  The Company does not believe that 
environmental protection provisions will have any significant effect 
on its competitive position; it does believe, however, that such 
provisions have added and will continue to add to capital expenditures 
and operating costs. 

     Questar is actively promoting the environmental advantages of 
natural gas in comparison to other fuels.  It has actively 
participated in various clean air committees and has promoted the use 
of natural gas in automobiles.  Questar's management believes that 
increasing concerns about environmental pollution will result in an 
increased demand for natural gas.

Research and Development

     Questar Gas has the primary responsibility for the Company's 
research and development activities.  It evaluates gas conversion 
equipment, gas piping, and engines using natural gas and also 
evaluates technological developments with electrical appliances.  The 
total amount spent by Questar on research and development activities 
either directly or through contributions is not significant.

Oil and Gas Operations

     Oil and gas operations are significant to the business functions 
and financial condition of Questar.  (All information set forth below 
relates to the Company on a consolidated basis.)  Certain information 
concerning the Company's oil and gas operations is presented in Note 
10 in the Notes to Consolidated Financial Statements.  The Company 
does not have any long-term supply contracts with foreign governments 
or reserves of equity investees.

     Reserve Reports.  The following is a reconciliation of reserve 
quantities reported in Note 10 in the Notes to Consolidated Financial 
Statements and reserve quantities reported to other regulatory 
agencies:

     The Company, on a consolidated basis, is reporting 829 Bcf of 
natural gas reserves at year-end 1998.  This total represents the net 
revenue interest of all owned reserves and includes quantities 
attributable to cost-of-service properties.

     Questar Gas files information using a FERC Form 2 format with the 
PSCU and PSCW and lists gas reserves of 396.8 Bcf (working interest) 
at December 31, 1998, which include reserves attributable to royalty 
interests.  The 339.8 Bcf (net revenue interest) reported as 
cost-of-service gas reserves in Note 10 exclude reserves attributable 
to royalty interests.

     Questar Pipeline files a Form 2 (Annual Report) with the FERC.  
The Form 2 discloses Questar Pipeline's cushion gas of 61.6 Bcf at 
December 31, 1998.  This gas is not included in the total reserve 
number.

     Oil and Gas Production.1

                            1998          1997         1996  

    Natural gas (MMcf)     88,447        84,896       77,259 
    Oil (Mbbl)              2,953         2,962        2,558 

    1Production quantities from all properties, including 
cost-of-service properties.

    Average Sales Price.2

                             1998          1997          1996 

    Natural gas per Mcf    $ 1.92         $1.89         $1.53 
    Oil per bbl             12.69         18.29         18.80 

    2Average sales price is calculated on production excluding 
cost-of-service volumes.

    Average Production (Lifting) Cost.  The average production cost 
Mcfe excludes costs and volumes associated with production of 
cost-of-service reserves.  One barrel of oil equals the energy content 
of 6 Mcf of gas.

                               1998          1997           1996

    Production cost per Mcfe   $.67          $.68           $.62

    Producing Wells at December 31, 1998.

                                  Gas    Oil  

    Gross wells                  3,934  3,033 
    Net wells                    1,289    648 

     The numbers for gross wells include 139 wells with multiple 
completions.

     Leasehold Acreage at December 31, 1998.  Questar can retain its 
interest in undeveloped acreage by either drilling activity that 
establishes commercial production or by the payment of delay rentals.  
A portion of the unproved acreage may be allowed to lapse prior to the 
primary terms of the lease.  Leasehold acreage is located in the 
United States and Canada.  Approximately 81 percent of the domestic 
unproved acreage consists of federal and state leases that generally 
have ten-year terms.  The remaining 19 percent is attributable to fee 
leases that generally have three- to five-year terms.  About 30 
percent of the unproved acreage is scheduled to expire within the next 
five years if no drilling or development activity is undertaken.  
Substantially all the Canadian unproved acreage is related to Crown or 
government leases, which provide for five-year terms.

     The following chart lists the Company's consolidated productive 
and unproved acreage:

                               Productive           Unproved
                       Gross        Net          Gross      Net

United States      2,649,319    859,272      1,753,340  734,745
Canada                75,861     21,989        112,943   47,759
   Total           2,725,180    881,261      1,866,283  782,504

     Net Productive and Dry Wells Drilled.

               Exploratory WellsDevelopment Wells

                1998     1997     1996      1998     1997     1996

    Productive     2        3        3        61       36       19
    Dry            3                 -         5        7        2

    Total          5        3        3        66       43       21

    Present Activities.  At year-end 1998, Questar affiliates had a 
working interest in 15 wells waiting on completion and 10 wells being 
drilled.

    Delivery Commitments.  Questar Gas is obligated to deliver natural 
gas to approximately 663,400 customers in Utah, Wyoming and Idaho, but 
future quantities associated with such service are neither fixed nor 
determinable.  

    Celsius and Questar E&P sell a majority of their oil and gas 
production through Questar Energy Trading on the spot-market or under 
short-term contracts that provide for price readjustments.

ITEM 3.  LEGAL PROCEEDINGS

    There are various legal proceedings pending against the Company 
and its affiliates.  Significant cases are discussed below.

    Questar E&P is a named defendant in a class action lawsuit 
involving royalty payments in Oklahoma state court.  In Bridenstine 
vs. Kaiser-Francis Oil Company, the plaintiffs allege fraud and 
contract claims and assert damages against all defendants for a 
15-year period in excess of $35,000,000 plus punitive damages.  The 
plaintiff's primary claim alleges that a transportation fee charged 
against royalty payments was improper or excessive.  The claims 
involve wells connected to an intrastate gathering system that QGM 
presently owns and operates.  Kaiser-Francis and Questar E&P are the 
major working interest owners and operators of a majority of the wells 
connected to this pipeline system.  

    The Oklahoma Supreme Court has denied defendants' appeal from the 
trial court's decision to certify the Bridenstine case as a class 
action.  At this point, Questar E&P cannot predict the outcome of the 
lawsuit but believes it will not have a material effect on the 
Company.

    Questar Pipeline and some its affiliates have been named as 
defendants in a lawsuit filed under the federal false claims act by an 
individual who is engaged in natural gas production.  The case is one 
of 77 substantially similar cases filed contemporaneously by this 
producer against pipelines and their respective affiliates, in which 
the producer alleges mismeasurement of the heat content of natural gas 
volumes and understatement of the value of gas on which royalty 
payments are due the federal government.  The complaint also claims 
treble damages and seeks imposition of civil penalties.  The 
producer's complaint does not include a request for any specific 
monetary damages.  Management believes that the producer's allegations 
and claims against Questar Pipeline do not have merit.  The outcome of 
the case cannot be predicted at this time.

    As a result of acquiring Questar Pipeline's gas purchase contracts 
in 1994, Questar Gas is responsible for any judgment rendered against 
Questar Pipeline in a lawsuit that was tried before a Wyoming federal 
district court jury in 1994.  On June 2, 1998, the trial court judge 
entered a judgment that set aside all aspects of the jury's award in 
favor of the producer except for $500,000 relating to specified 
take-or-pay issues.  The producer has filed an appeal with the United 
States Court of Appeals for the Tenth Circuit.

    Prior to the trial court judge's action, the producer filed 
another action in Wyoming's federal district court alleging antitrust 
violations in addition to similar claims raised in the first case for 
the period since the jury verdict.  This second case has been stayed 
pending appellate review of the first case.

    QMR continues to monitor the Wasatch Chemical property in Salt 
Lake City, which is still included on the national priorities list, 
commonly known as the "Superfund" list.  The Wasatch Chemical property 
was the location of chemical mixing operations and is the subject of a 
1992 consent order.  QMR conducted the necessary soil remediation and 
groundwater remediation activities and expects that the site will be 
removed from the Superfund list.             

    See "Regulated Services, Retail Distribution" and "Regulated 
Services, Transmission and Storage" for a review of significant 
regulatory proceedings.

ITEM 4.  SUBMISSION OF MATTERS TO A VOTE OF SECURITY HOLDERS

    The Company did not submit any matters to a vote of stockholders 
during the last quarter of 1998.

                              PART II

ITEM 5.  MARKET FOR REGISTRANT'S COMMON EQUITY AND RELATED STOCKHOLDER 
MATTERS

    Information concerning the market for the common equity of the 
Company and the dividends paid on such stock is located in Note 11 in 
the Notes to Consolidated Financial Statements.  As of March 22, 1999, 
Questar had 12,934 shareholders of record and estimates that it had an 
additional 20,000-23,000 beneficial holders.


ITEM 6. SELECTED FINANCIAL DATA
<TABLE>
<CAPTION>
                                             1998       1997       1996       1995        1994
                                          (In Thousands, Except Per Share Amounts)
<S>                                       <C>        <C>        <C>        <C>        <C>
Revenues                                    $906,256   $936,337   $817,981   $649,287    $670,318
Operating expenses
  Natural gas and other product purchases    365,168    399,941    314,271    199,419     212,528
  Other expenses                             408,307    366,241    332,087    307,842     303,132
    Total operating expenses                 773,475    766,182    646,358    507,261     515,660
    Operating income                        $132,781   $170,155   $171,623   $142,026    $154,658

Write-down of investment in
   Nextel Communications                                                                 $(61,743)

Income from continuing operations            $76,899   $104,795    $98,145    $83,786      49,417
Gain from sale of Questar Telecom
   to Nextel Communications                                                                38,126
Loss from discontinued operations
     Net income                              $76,899   $104,795    $98,145    $83,786     $87,543

Basic earnings per common share
  From continuing operations                   $0.93      $1.27      $1.20      $1.03       $0.61
  Gain from sale of Questar Telecom                                                          0.47
  Loss from discontinued operations
     Net income                                $0.93      $1.27      $1.20      $1.03       $1.08

Diluted earnings per common share
  From continuing operations                   $0.93      $1.27      $1.19      $1.02       $0.60
  Gain from sale of Questar Telecom                                                          0.47
  Loss from discontinued operations
     Net income                                $0.93      $1.27      $1.19      $1.02       $1.07

Dividends per share                            $0.65      $0.62      $0.60      $0.58       $0.57
Book value per common share                    10.62      10.30       9.41       8.76        8.09
Total assets                               2,161,281  1,945,017  1,816,225  1,584,553   1,585,575
Net cash provided from
    operating activities                     284,685    202,678    182,921    204,171     163,375
Capital expenditures                         461,347    212,797    291,835    118,188     276,882

Capitalization
   Long-term debt, less current portion      615,770    541,986    555,509    421,695     494,684
   Redeemable cumulative preferred stock                             4,828      4,957       6,324
   Common stock                              877,958    845,778    772,085    712,675     653,589
     Total capitalization                 $1,493,728 $1,387,764 $1,332,422 $1,139,327  $1,154,597
</TABLE>


ITEM 7.  MANAGEMENT'S DISCUSSION AND ANALYSIS OF
RESULTS OF OPERATIONS AND FINANCIAL CONDITION

SUMMARY

Questar Corporation reported 1998 net income of  $76,899,000,
or $.93 per share, which includes the effect of a write-down of
oil and gas properties by $20,315,000 after-tax, or $.25 per
share. Questar reported 1997 net income of $104,795,000, or
$1.27 per share (including a $3,540,000, or $.04 per share,
after-tax write-down), and $98,145,000, or $1.19 per diluted
share, in 1996.

Questar's Market Resources group, which engages in various
nonregulated activities, had net income of $13,737,000 in 1998
compared with $42,099,000 in 1997 and $42,447,000 in 1996.  A
31% decline in the price of oil and natural gas liquids in 1998
caused a $34 million pretax write-down of oil and gas
properties under full-cost accounting rules. A weakness in
Canadian energy prices and revision of pricing in a gathering
contract resulted in a $6 million pretax write-down in 1997.

Questar's Regulated Services group, consisting of gas
distribution, interstate gas-transportation and storage and
retail energy services achieved net income of $54,827,000
compared with $54,639,000 in 1997 and $51,309,000 in 1996.

Corporate and other operations reported net income of
$8,335,000 in 1998 compared with $8,057,000 in 1997 and
$4,389,000 in 1996.  Other operations benefited from the sales
of shares of a communications-technology company and the
conversion of an interest in a local company into shares of
another communications-technology company resulting in
after-tax gains of $6.3 million in 1998, $5.5 million in 1997
and $3.7 million in 1996.

Net cash provided from operating activities increased to
$284,685,000 in 1998 from $202,678,000 in 1997 and $182,921,000
in 1996 due to increased cash flow from working capital
changes.  Capital expenditures amounted to $461,347,000 in 1998
and were financed primarily through net cash flow provided from
operations, short- and long-term debt, and asset sales.  Common
equity represented 59% and long-term debt 41% of consolidated
capitalization at December 31, 1998.

RESULTS OF OPERATIONS

MARKET RESOURCES - Market Resources conducts Questar's
exploration and production, energy marketing, and gas gathering
and processing.  Retail energy services were transferred with
Regulated Services for all periods presented.  Following is a
summary of financial results and operating information.
<TABLE>
<CAPTION>
                                          Year Ended December 31,
                                         1998        1997        1996
                                     (Dollars In Thousands)
<S>                                  <C>         <C>         <C>
OPERATING INCOME
Revenues
  Natural gas sales                      $98,767     $89,489     $61,970
  Oil and natural gas liquids sales       36,722      53,722      47,045
  Cost-of-service gas operations          61,448      52,950      53,119
  Energy marketing                       234,565     297,413     286,042
  Gas gathering and processing            23,796      28,175      31,851
  Other                                    4,816       4,068       4,053
        Total revenues                   460,114     525,817     484,080
Operating expenses
  Energy purchases                       232,135     293,174     272,610
  Operating and maintenance               75,032      72,712      66,301
  Depreciation and amortization           71,377      67,078      58,679
  Write-down of oil and gas propertie     34,000       6,000
  Other taxes                             24,988      25,569      19,034
  Oil-income sharing                       1,053       2,347       2,768
        Total expenses                   438,585     466,880     419,392
          Operating income               $21,529     $58,937     $64,688

OPERATING STATISTICS
Production volumes
    Natural gas (in MMcf)                 51,309      47,442      40,519
    Oil and natural gas
     liquids (in Mbbl)                     2,894       2,938       2,502
Production revenue
     Natural gas (per Mcf)                 $1.92       $1.89       $1.53
     Oil and natural gas
      liquids (per bbl)                   $12.69      $18.29      $18.80
Wexpro settlement investment base, net
     of deferred income taxes (in 000    $97,594     $72,867     $74,806
Energy-marketing volumes
    (in thousands of equivalent dth)     113,513     142,601     152,280
Natural gas-gathering volumes (in Mdth)
    For unaffiliated customers            72,908      57,586      48,525
    For Questar Gas                       29,893      28,506      30,199
    For other affiliated customers        17,720      17,679       8,794
        Total gathering                  120,521     103,771      87,518
    Gathering revenue (per dth)            $0.16       $0.21       $0.24
</TABLE>

Revenues for Market Resources decreased 12% in 1998 compared
with 1997, due primarily to lower markeitng revenues and lower
selling prices for oil and natural gas liquids (NGL).  Natural
gas production improved 8% primarily as a result of producing
properties acquired in September 1998. Also, Market Resources
increased its investment in cost-of-service gas operations.

A 31% drop in the average selling price of oil and NGL caused
lower revenues from oil and NGL production and a write-down of
oil and gas properties in the fourth quarter of 1998.  The
write-down, under full-cost accounting rules, amounted to $34
million before income taxes and included $19 million for U.S.
properties and $15 million for Canadian properties.  The
write-down reduced income by $20.3 million after taxes. Market
Resources wrote down oil and gas properties by $3 million
before taxes or $1.7 million after taxes in the fourth quarter
of 1997.  The 1997 write-down resulted from lower Canadian oil
and gas prices.

The average price for oil and NGL declined from $18.29 in 1997
to $12.69 in 1998 largely due to surplus supplies.  Production
of oil and NGL was 1% lower in 1998 after registering a 17%
increase in 1997 attributable to reserve acquisitions in 1996.
Natural gas selling prices increased 2% in 1998 following a 24%
increase in 1997. Gas production rose 3.9 billion cubic feet
(Bcf) or 8% in 1998 due to the acquisition of reserves.

On September 1, 1998, Market Resources completed the purchase
of an estimated 150 billion cubic feet equivalent of proved oil
and gas reserves, primarily in Oklahoma, as well as in Texas,
Arkansas and Louisiana. Approximately 80 percent of the
reserves are natural gas. The purchase price was $155 million.
Production from these new properties was about .9 Bcf of gas
and 25,000 barrels (bbls) of oil and NGL per month.  In a
separate purchase also effective September 1998, Market
Resources acquired 4.8 Bcfe of proved reserves (90% gas) for
$3.1 million in western Canada.

Market Resources achieved a five-year average finding cost of
$.93 per thousand cubic feet equivalent (Mcfe), including
cost-of-service reserves, in 1998 compared with  $.78 per Mcfe
in 1997. Noncost-of-service reserve additions amounted to 173
Bcfe in 1998, representing a production-replacement ratio of
250%.  Reserve additions in 1997 of 45 Bcfe resulted in a 62%
production-replacement ratio.

Revenues from Wexpro's cost-of-service gas operations increased
16% in 1998 as a result of investments made in cost-of-service
properties.  Wexpro's investment base, net of deferred income
taxes, grew 34% to $97,594,000 as of  December 31, 1998.
Wexpro's after-tax return on investment in those properties
averaged 20.6% in 1998.  For more details, see a summary of the
Wexpro settlement agreement in Note 9 to the consolidated
financial statements.

Market Resources periodically enters into swaps, futures
contracts or option agreements to hedge its exposure to price
fluctuations in connection with marketing production of natural
gas and oil.  Market Resources currently has hedged
approximately 57% of its existing 1999 gas production at a
price of about $1.99 per Mcf, net back to the well.  Roughly
46% of its existing 1999 oil production is currently hedged at
$14.66 per bbl, net back to the well.

A 21% decline in marketing revenues was parallel to a 20% drop
in the quantities of energy-marketing volumes.  Natural gas
volumes, which comprise 85% of the total, fell 23% in 1998. The
margin received on energy-marketing transactions decreased by
43% in 1998 after falling by 68% in 1997.  The 1998 decrease
was caused by increased competition and reduced value of
firm-transportation contracts. The 1997 decrease was the result
of paying higher prices for production from affiliated
companies. Market Resources also markets oil and electricity,
which represented 18% of energy-marketing revenues in 1998 and
16% in 1997.  Market Resources periodically enters into swaps,
futures contracts or option agreements to secure a known margin
for the purchase and resale of gas, oil and electricity in
marketing activities.

Revenues from gas gathering and processing fell 16% in 1998
when compared with 1997 due to a negotiated decrease in rates
charged to Questar Gas.  Revenues from gas gathering and
processing declined by 12% in 1997.  The 1997 decrease was the
result of selling two processing plants and revising a
gathering contract with Questar Gas.

A reduction in projected gathering-contract revenues caused a
$3 million pretax, or $1.9 million after-tax, writedown of
gathering assets in the fourth quarter of 1997.  The write-down
was triggered after the Questar Gas contract revision when it
was determined that undiscounted future cash flows measured
less than the investment in plant assets.

Operating and maintenance (O & M) expenses increased 3% in 1998
and 10% in 1997 when compared with the prior year, primarily
due to the addition of oil and gas properties.  Also, in 1998
there was an increase in cost-of-service activities. In 1997,
two processing plants were sold and an early-retirement program
was offered, which partially offset increases discussed.

REGULATED SERVICES - Regulated Services conducts Questar's
natural gas distribution, transmission and storage and
nonregulated retail energy services.

Natural Gas Distribution - Questar Gas conducts the Company's
natural gas distribution operations.  Following is a summary of
financial results and operating information:
<TABLE>
<CAPTION>
                                          Year Ended December 31,
                                         1998        1997        1996
                                          (Dollars In Thousands)
<S>                                  <C>         <C>         <C>
OPERATING INCOME
Revenues
  Residential and commercial sales      $425,452    $399,174    $328,785
  Industrial sales                        29,555      24,459      18,357
  Industrial transportation                6,480       6,491       5,898
  Other                                   15,336      18,099      18,888
    Total revenues                       476,823     448,223     371,928
  Natural gas purchases                  281,004     248,933     182,400
   Revenues less natural gas purchases   195,819     199,290     189,528

Operating expenses
  Operating and maintenance               96,923     101,719      97,110
  Depreciation and amortization           33,261      31,160      28,309
  Other taxes                              8,185       8,174       8,071
        Total expenses                   138,369     141,053     133,490
          Operating income               $57,450     $58,237     $56,038

OPERATING STATISTICS
Natural gas volumes (in Mdth)
  Residential and commercial sales        83,231      85,747      80,844
  Industrial deliveries
    Sales                                  9,681       9,523       8,584
    Transportation                        55,461      51,313      49,499
      Total industrial                    65,142      60,836      58,083
        Total deliveries                 148,373     146,583     138,927
Natural gas revenue (per dth)
  Residential and commercial               $5.11       $4.66       $4.07
  Industrial sales                          3.05        2.57        2.14
  Transportation for industrial customers   0.12        0.13        0.12
System natural gas cost (per dth)          $2.57       $2.62       $2.44
Heating degree days (normal 5,801)         5,462       5,465       5,307
  Warmer than normal                           6%          6%          9%
Number of customers at December 31,
   Residential and commercial            662,084     640,496     617,241
   Industrial                              1,308       1,200         990
                                         663,392     641,696     618,231
</TABLE>

Revenues, less natural gas purchases, decreased $3,471,000 in
1998 when compared with 1997 as a result of lower usage per
customer in 1998 and switching between rate classifications.
These downward pressures were partially offset by increased
sales due to the addition of new customers. Revenues, net of
gas costs, increased $9,762,000 in 1997 when compared with 1996
primarily from higher heating demand caused by colder
temperatures and customer additions.

Usage of gas per retail customer fell during the first half of
1998 after increasing in the first half of 1997. This reduced
usage appears to have been a reaction to rising gas costs
included in rates during the latter part of 1997 and first part
of 1998. Usage per customer had stablized by the end of 1998,
coinciding with lower gas costs.  A rate surcharge, associated
with constructing a distribution pipeline into southern Utah
and in effect for the past 10 years, began phasing out in
September of 1997.  Also, some general-service customers, who
met higher load-factor standards in 1998, shifted to firm
commercial rates that have a lower margin.

Questar Gas added 21,696 customers in 1998 and 23,465 customers
in 1997, representing increases of 3.4% and 3.8%, respectively.
Customer additions in 1999 are expected to reach 20,000 to
21,000.

Temperatures were warmer than normal for the three years
presented.  The revenue impact of warmer-than-normal
temperature trend was mitigated as a result of a
weather-normalization adjustment, which was part of a 1995 rate
settlement. Virtually all of Questar Gas' residential and
commercial volumes were covered under the weather-normalization
adjustment in 1998 and 1997 compared with about 50% in 1996.

Gas deliveries to industrial customers increased 7% in 1998 and
5% in 1997 compared with the prior year.  The increases were
due to the effects of a strong regional economy, which produces
expansion of operations and addition of industrial customers.
Margins from gas delivered to industrial customers, either for
gas sold or transported, are substantially lower than from gas
delivered to residential and commercial customers.

Questar Gas' natural gas purchases increased in 1998 and 1997,
resulting in a rising natural gas cost component allowed in
rates.  The gas-cost component in Utah rates was also increased
in 1998 and 1997 in an effort to recover sharply increased
natural gas-purchase costs incurred during the 1996-1997
heating season.  By the end of 1998, those costs had been
substantially recovered.  The balance in the purchased gas cost
account had decreased from $37.3 million at December 31, 1997
to $2.1 million at December 31, 1998.  In response to requests
by Questar Gas, regulatory agencies approved on an interim
basis decreases in gas costs charged to customers.  The winter
residential and small commercial customer gas-cost component
for Utah decreased from $3.20 per dth to $2.78 beginning in
January 1999 and from $2.88 to $2.63 per dth in Wyoming.

Questar Gas' O & M expenses decreased by 5% in 1998 compared
with 1997 as a result of lower labor costs and capitalizing
costs associated with installing new computer systems.  Labor
costs were $2 million lower in 1998 due to a reduction in the
number of employees following an early retirement program
offered to employees of Regulated Services.  O & M expenses
increased 5% in 1997 due primarily to the costs of serving an
expanding customer base, higher labor costs and modernization
of key computer systems. In 1997, Questar Gas and Questar
Pipeline combined functions common to gas-distribution and
gas-transmission operations in order to eliminate duplications.

Natural Gas Transmission  - Questar Pipeline conducts the
Company's natural gas transmission and storage operations.
Following is a summary of financial results and operating
information:
<TABLE>
<CAPTION>
                                           Year Ended December 31,
                                         1998        1997        1996
                                           (Dollars In Thousands)
<S>                                  <C>         <C>         <C>
OPERATING INCOME
Revenues
  Transportation                         $70,824     $68,837     $67,656
  Storage                                 36,463      34,410      34,280
  Other                                    1,270       2,190       2,242
        Total revenues                   108,557     105,437     104,178

Operating expenses
  Operating and maintenance               38,832      37,334      39,959
  Depreciation and amortization           13,927      14,797      14,206
  Other taxes                              2,600       2,816       2,519
        Total expenses                    55,359      54,947      56,684
          Operating income               $53,198     $50,490     $47,494

OPERATING STATISTICS
Natural gas transportation volumes (in Mdth)
    For unaffiliated customers           120,747     116,215     131,895
    For Questar Gas                      107,501     110,311     100,161
    For other affiliated customers        26,878      37,797      44,327
       Total transportation              255,126     264,323     276,383
   Transportation revenue (per dth)        $0.28       $0.26       $0.24
Clay Basin storage, working gas-
    capacity (in Bcf)                       51.3        46.3        46.3
</TABLE>

Revenues were $3,120,000 higher in 1998 when compared with 1997
as a result of increasing firm-transportation reservation fees
and expanding firm-storage capacity. Revenues increased
$1,259,000 or 1% in 1997 when compared with 1996 as a result of
adding firm-transportation contracts. The new contracts cover
several short-haul portions of the pipeline.

Transportation revenues were $1,987,000 higher in 1998 when
compared with 1997 as a result of higher average
firm-transportation fees.  However, transportation volumes
declined by 3% from 1997. Marketing programs continue to seek
replacement of customers that leave the system.  As of December
31, 1998, approximately 76% of  Questar Pipeline's
transportation system was reserved by firm-transportation
customers under contracts with varying terms and lengths. The
remaining 24% of transportation system capacity, which has
multiple delivery points, is available for interruptible
transportation.

Questar Gas has reserved transportation capacity from Questar
Pipeline of approximately 800,000 dth per day, representing 74%
of the total reserved daily-transportation capacity at December
31, 1998. This contract, which accounts for 79% of the demand
charges collected by Questar Pipeline, expires June 30, 1999.
Management intends to extend the contract and does not believe
that the new contract will have a material impact on the
results of operations, financial position or cash flows of
Questar Pipeline.

Questar Pipeline expanded working gas capacity at its Clay
Basin underground storage facility in 1998 by 5 Bcf  to 51.3
Bcf.   Questar Pipeline was able to sign-up customers for the
new capacity under long-term commitments.  The expansion, which
began service in May 1998, added $2,026,000 to 1998 revenues.
Customers pay a fixed fee to reserve firm-storage capacity.
Storage revenues were flat in 1997 when compared with 1996.
Storage capacity at the end of 1998 was 100% subscribed and
about 76% of the contractual volumes had remaining terms of at
least 10 years. Questar Gas has reserved 24% of firm-storage
capacity for at least 10 years.

Questar Pipeline's O & M expenses increased 4% in 1998 compared
with 1997 due primarily to expansion of data processing and
telecommunications networks and more spending on general
maintenance and repair projects. However, labor costs were
$750,000 lower in 1998 due to a reduction in the number of
employees. An early-retirement program was offered to employees
of Regulated Services effective July 31, 1998.  O & M expenses
decreased 7% in 1997 because of cost-containment measures and
reduced labor and related costs.  In 1997, Questar Gas and
Questar Pipeline combined functions common to gas-distribution
and gas-transmission operations in order to eliminate
duplications.

Questar Pipeline has a 50% ownership interest in a partnership
that constructed the 270-mile Phase II of the TransColorado
Pipeline in western Colorado and northwestern New Mexico.
Construction of Phase II began in July 1998 and was
substantially completed at December 31, 1998.  The in-service
date for Phase II is expected to be April 1999.  With
completion of Phase II, Questar Pipeline will acquire El Paso
Energy Corporation's 50% interest in Phase I of the pipeline
project completed in 1996, making Questar Pipeline a 50% owner
of the entire project with KN Energy.

The 292-mile pipeline cost roughly $295 million, including the
costs of Phase I.  During its startup period, the pipeline's
capacity is expected to be about 138 MMcf per day.  Pipeline
capacity will be increased to its designed capacity of 300 MMcf
per day by adding compression as load requirements develop. The
two owners have agreed to contract for some capacity at a
discounted rate during the first three years of operation.
However, the cost of operating the pipeline during this period
is expected to exceed the revenue for transporting gas. The
pipeline has a tariff rate of $.40 per dth, but likely will be
required to offer discounts to shippers during the first
several years of service because of competitive market
conditions. A major factor is the differential in gas prices
between the San Juan basin and the Rocky Mountains.  The
differential is generally seasonal with higher prices occurring
during the summer to meet demand for electricity generation.

TransColorado Gas Transmission Co., a partnership in which
Questar Pipeline owns a 50% interest through a subsidiary,
entered into a $200 million, three-year revolving credit
facility on October 14, 1998. Questar Pipeline and KN Energy
have each guaranteed the repayment of their proportionate share
of the loan.  Proceeds from this debt were used to finance the
construction of the TransColorado Pipeline. The partnership had
borrowed $160 million under this arrangement as of December 31,
1998.

A subsidiary of Questar Pipeline, Questar Line 90 Company,
purchased an oil pipeline extending from the Paradox producing
basin of northwestern New Mexico to Long Beach, California, in
1998 for $38 million.  The Company intends to convert this
line, named the Southern Trails Pipeline, to transport natural
gas to customers in the Los Angeles basin.  At this time,
conversion and compression facilities are expected to add
approximately $117 million to the total cost of the project and
to be in-service by mid-2000. The pipeline capacity is expected
to be 120 MMcf per day after modifications. Questar Pipeline
plans to connect the Southern Trails Pipeline to the
TransColorado and other pipelines.

CORPORATE AND OTHER OPERATIONS - This segment's activities
include data processing, communications and corporate services.

Net income reported by other operations amounted to $8,335,000
in 1998, $8,057,000 in 1997, and $4,389,000 in 1996. Questar
sold 220,000 shares of Nextel Communications in 1998, 805,000
shares in 1997 and 620,000 shares in 1996.  These sales
resulted in after-tax gains of  $2.8 million in 1998, $5.5
million in 1997 and $3.7 million in 1996.  In 1998, Questar
InfoComm converted an interest in a Utah affiliate of Nextlink
into 189,312 shares of Nextlink and realized a $3,536,000
after-tax gain. Another significant aspect of other operations
is providing data processing and communications services to
other Questar-affiliated companies.

CONSOLIDATED OPERATING RESULTS

Revenues:  Consolidated revenues were lower by $30,081,000 or
3% in 1998 compared with 1997. Reduced energy-marketing sales
and lower oil and NGL prices were partially offset by increased
revenues from natural gas distribution and transmission
operations and higher natural gas production and prices from
Market Resources.   Consolidated revenues rose 14% in 1997
because of increased gas-and -oil production and higher
gas-selling prices plus increased natural gas-distribution
revenues.

Natural gas and other product purchases:  Natural gas and other
product purchases were 9% lower in 1998 compared with 1997 as a
result of a decrease in purchases for energy-marketing sales.
In 1997, natural gas and other product purchases increased
$85,670,000 or 27% primarily due to higher gas-purchase costs
for natural gas distribution and energy-marketing customers.

Operating and maintenance expenses:  Operating and maintenance
expenses increased 4% in 1998 compared with 1997.  The primary
causes of the higher expenses were related to development of
new computer and communications systems, operations of
additional gas properties and the growth in the number of
customers served.

Eligible employees in Regulated Services were offered an
early-retirement package that was effective July 31, 1998.
Enhanced benefits were paid to 178 employees who took advantage
of the offer. Regulated Services' work force was reduced by
more than 10%, which will decrease future operating expenses.
For the last five months of 1998, the net reduction of
operating expenses in excess of the cost of the program was
approximately $2.8 million.  Regulated Services is amortizing
the costs associated with the early-retirement program over a
five-year period in accordance with anticipated regulatory
treatment.

Depreciation expenses:  Depreciation and amortization expenses
increased 6% in 1998 and 12% in 1997 as a result of increased
capital investment in all business segments and higher gas and
oil production. The full-cost amortization rate was $.85 per
Mcfe in 1998, $.84 per Mcfe in 1997 and $.79 per Mcfe in 1996.
In addition to depreciation expense, the Company wrote down the
book value of oil and gas properties by $34 million in 1998 and
$6 million in 1997.

Other taxes:  Other taxes, primarily production and property
related, decreased in 1998 because of lower oil revenues.
Other taxes increased in 1997 because of higher gas prices and
gas and oil production.

Interest and other income:  Interest and other income was
$1,465,000 lower in 1998 compared with 1997 and $7,627,000
higher in 1997 compared with 1996 as described in the following
details:
<TABLE>
<CAPTION>
                                                    Year ended December 31,
                                                     1998        1997        1996
                                                       (In Thousands)
<S>                                              <C>         <C>         <C>
Sales and conversion of interests in securities      $10,474      $9,376      $6,265
Return earned on working-gas inventory                 1,892       1,317       1,827
Write-off of Western Market Center                                            (2,970)
Interest and other                                     5,836       8,974       6,918
     Interest and other income                       $18,202     $19,667     $12,040
</TABLE>

Earnings from unconsolidated affiliates: Earnings from
unconsolidated affiliates were $1,424,000 or 33% lower in 1998
when compared with 1997 due to lower amounts of capitalized
interest costs and operating losses incurred by a processing
plant. Financing costs that accumulated during the planning
phase of the TransColorado Pipeline were capitalized in 1997.
Depressed prices for NGLs and higher operating costs have
caused an operating loss in a processing plant that is
partially owned by Market Resources.  A rate increase in effect
for all of 1998 at the Overthrust Pipeline partially offset the
lower earnings reported by other unconsolidated affiliates.

Interest expense:  Interest expense increased $4,205,000 or 10%
in 1998 when compared with 1997 due to an increase in short-
and long-term borrowings to finance a portion of the Company's
capital expenditures.

Income taxes:  The effective combined federal, state and
foreign income tax rate was 27.4% in 1998, 30.3% in 1997, and
31.6% in 1996.  Income tax rates were below the combined
statutory rate of about 38% primarily due to tax credits for
tight-sands gas production.  Production tax credits of
$7,953,000 in 1998, $9,319,000 in 1997 and $9,491,000 in 1996
reduced income tax expenses.


LIQUIDITY AND CAPITAL RESOURCES

Net cash provided from operating activities increased to
$284,685,000 in 1998 from $202,678,000 reported in 1997.
Capital expenditures amounted to $461,347,000 in 1998, up from
$212,797,000 reported in 1997. Common equity and long-term debt
represented 59% and 41%, of consolidated capitalization at
December 31, 1998, respectively, compared with 61% and 39% a
year earlier.

Operating Activities:
                                            Year Ended December 31,
                                         1998        1997        1996
                                                 (In Thousands)

Net cash provided from operating
  activities                            $284,685    $202,678    $182,921


Net cash provided from operating activities increased 40% to
$284,685,000 in 1998 as a result of the collection of
purchased-gas costs from natural gas distribution customers and
accounts receivable, and an increase in accounts payable in
connection with pipeline construction.  Net cash provided from
operating activities in 1997 increased 11% when compared with
the amount reported for 1996 due primarily to higher net income
and depreciation charges and a smaller increase in accounts
receivable. The write-downs of oil and gas properties in both
1998 and 1997 were noncash expenses.

Investing Activities:

Capital expenditures amounted to $461,347,000 in 1998.
Following is a summary of capital expenditures for 1998 and
1997, and a forecast for 1999:
<TABLE>
<CAPTION>
                                                      Year Ended December 31,
                                                     1999
                                                  Estimated      1998        1997
                                                 (In Thousands)
<S>                                              <C>         <C>         <C>
Market Resources
            Exploratory drilling                     $12,900      $5,898      $6,677
            Development drilling                      49,000      60,402      33,301
            Other exploration                          8,000       6,789       8,733
            Reserve acquisitions                     238,500     158,000       2,155
            Production                                15,600       8,434       8,754
            Gathering and processing                  27,400      11,046      29,405
            General                                    2,200       3,977       3,285
                                                     353,600     254,546      92,310
Regulated Services
Natural gas distribution
            New-customer service                      35,100      35,106      30,794
            Distribution system                       11,200      15,338      10,507
            Buildings                                    600         396       5,388
            Computer software and hardware             3,700      14,859       9,083
            General                                    9,400      10,629       9,603
                                                      60,000      76,328      65,375
Natural gas transmission
            Transmission system                       26,100      21,395      19,622
            Storage                                    1,700       6,284       1,399
            Partnerships                              10,200      26,000       6,214
            Southern Trails Pipeline                  30,000      39,471
            CO2 plant                                 12,800      16,259
            General                                    8,200       4,909       5,361
                                                      89,000     114,318      32,596

Other                                                  3,900         493          77
            Total Regulated Services                 152,900     191,139      98,048

Corporate and other operations
            General office building                                1,724       9,676
            Technology                                             5,300
            Data processing and communications         4,900       2,550       6,429
            Uncommitted                               25,000
            Other                                      9,100       6,088       6,334
                                                      39,000      15,662      22,439
                                                    $545,500    $461,347    $212,797
</TABLE>

Market Resources
Capital expenditures included the purchase of producing
properties, exploration and development of gas and oil reserves
and construction of  NGL processing plants. The group
participated in drilling 205 wells (71 wells on a net revenue
basis) in 1998 that resulted in 114 gas wells, 43 oil wells, 23
dry holes and 25 wells in progress at year end. The 1998
success rate was 87%.  Projected 1999 capital spending includes
$192 million designated for a large gas-and-oil reserve
acquisition should the opportunity exist.

Regulated Services - Natural gas distribution
Expansion of the distribution system in response to the rapid
growth in the number of customers was the focus of capital
spending.  The distribution system was extended by 720 miles of
main, feeder and service lines.

Regulated Services - Natural gas transmission
In 1998, transmission included the purchase a 700-mile
pipeline, substantial completion of construction of Phase II of
the TransColorado Pipeline, initial construction of a CO2
plant, replacement and expansion projects on sections of
existing transmission lines and expandsion of the Clay Basin
storage reservoir.

Corporate and Other Operations
The largest part of capital spending for other operations
included completion of a remodeling of corporate offices,
upgrading data processing and communication systems and
investment in technology companies.  In 1998, Questar sold its
corporate headquarters and entered a long-term sale-leaseback
arrangement.

Financing Activities:

Funding for 1998 capital spending was obtained primarily from
internal sources, short- and long-term debt and sales of
assets.  Net cash flow provided from operating activities, plus
the cash raised from selling excess assets, less dividends,
amounted to $282,193,000.  Short-term debt provided $89,900,000
and long-term debt provided a net increase of $75,545,000.
Capital expenditures for 1999 will be funded primarily through
internally generated cash, short- and long-term borrowings and
the continuing disposition of securities available for sale.

Questar has short-term line-of-credit arrangements with several
banks under which it may borrow up to $285,200,000.  These
lines have interest rates generally below the prime interest
rate. The balance of commercial paper and short-term bank debt
outstanding at December 31, 1998, amounted to $221,100,000 with
a weighted average interest rate of 5.38%.   The balance of
commercial paper outstanding at December 31, 1997, amounted to
$131,200,000, with a weighted average interest rate of 6.14%.
Commercial-paper borrowings are backed by the short-term
line-of-credit arrangements, and rated P1 and A1 by Moody's and
Standard and Poor's, respectively.

The Company typically has negative net working capital at
December 31 because of short-term borrowings.  These borrowings
are seasonal and generally peak at the end of the year because
of cold-weather gas purchases.  However, Questar had
substantially more current liabilities than current assets at
December 31, 1998, because of the short-term debt connected
with the Market Resources' acquisitions.  The Company expects
to convert a portion of that short-term debt to long-term debt
with the proceeds of a $300 million senior credit facility
being obtained by Market Resources.

Questar had a consolidated capital structure consisting of 41%
long-term debt and 59% common shareholders' equity at December
31, 1998.  Moody's and Standard and Poor's have rated the
long-term debt of Questar Gas and Questar Pipeline A1 and A+,
respectively. Market Resources' debt rating  is BBB+ by
Standard and Poor's and Baa3 by Moody's.

Market Risk

Questar's primary market risk exposures arise from commodity
price changes for natural gas, oil and other hydrocarbons and
changes in long-term interest rates.  The Company has an
investment in a foreign operation that may subject it to
exchange rate risk.  However, the exposure is not significant
due to the amount of the foreign investment.  Market Resources
also has reserved certain volumes of pipeline capacity for
which it is obligated to pay $3 million annually for the next
eight years, whether or not it is able to market the capacity
to others.

Energy Price Risk Management:  Energy price risk is a function
of changes in commondity prices as supply and demand fluctuate.
Market Resource bears a majority of the risk associated with
changes in commodity prices.  A primary objective of
energy-price hedging is to protect product sales from adverse
changes in energy prices. The Company does not enter into
hedging contracts for speculative purposes.

Market Resources held hedge contracts covering the price
exposure for about 45.3 million dth of gas and 464,000 bbls of
oil at December 31, 1998 and 45 million dth of natural gas and
167,000 bbls of oil at December 31, 1997.  The hedging
contracts are for gas and oil marketing activities and
Questar-owned production.  The contracts at December 31, 1998,
had terms extending through March 2000 with about 96% of those
contracts expiring by the end of 1999.

The fair value of gas and oil price-hedging contracts at
December 31, 1998 was $6 million.  The fair value calculation
used energy prices posted on the NYMEX, Inside FERC or other
indices at the end of 1998. A 10% decline in gas and oil prices
would cause the fair value of the contracts to increase by $3.9
million.  Conversely, a 10% increase in prices results in a
$4.1 million lower fair value calculation. This sensitivity
calculation does not consider the effect of gains or losses
recognized on the underlying physical side of these
transactions, which we expect would largely offset the change
in value.

Interest-Rate Risk Management:  The Company owed $622.2 million
of long-term debt at December 31, 1998, of which $434.6 million
was secured at a fixed rate.  The fair value of fixed-rate debt
is subject to change as interest rates fluctuate. The fair
value of Questar's long-term debt amounted to $670.1 million at
December 31, 1998.   The fair value calculation was based upon
quoted market prices, and the discounted present value of cash
flows using the Company's current borrowing rates.  If interest
rates declined by 10%, fair value would increase to $693.6
millions and interest costs paid on variable-rate long-term
debt would decrease about $1.1 million.  This sensitivity
calculation does not represent the cost to Company to retire
the debt securities. The book value of variable-rate debt
approximates fair value.

Foreign Currency Risk Management:  The Company does not hedge
the foreign currency exposure of its foreign operation's net
assets and long-term debt.  The net assets of foreign operation
were negative at December 31, 1998.  Long-term debt held by the
foreign operation, amounting to $51.6 million (U.S.), is
expected to be repaid from future operations of the foreign
company.


YEAR 2000

Introduction

    Questar established a team to address the issue of computer 
programs and embedded computer chips being unable to distinguish 
between the year 1900 and the year 2000 (Y2K).
  
    The basic approach is to provide corporate-wide management and 
coordination combined with distributed compliance responsibility at 
the various business units.  The corporate Y2K team is responsible for 
fostering awareness, establishing corporate-level, corporate-wide 
strategy; coordinating  Questar action items and information; and 
providing periodic internal status reports. The composition of the 
team includes representation from each major Questar business unit. 
The effort is designed to be consistent with the prudent efforts of 
publicly traded companies of similar size, business, and complexity.

    Questar InfoComm, Inc. (an affiliate which provides information 
technology services to other Questar affiliates) is responsible for 
Y2K compatibility of all communications systems; networks (LANs and 
WANs); corporate-wide applications and operating systems; mainframe 
resident commercial off-the-shelf products; and for developing, 
implementing and coordinating testing procedures.

General

    Questar's Y2K team has developed a written plan (the Plan) 
addressing infrastructure, applications software (infrastructure and 
applications software are sometimes collectively referred to as "IT 
systems"), outside suppliers and customers, and process control and 
instrumentation containing embedded chips (non-IT systems).  The 
Company's in-house programmers and systems analysts are primarily 
responsible for the conversion and testing of certain non-compliant 
application software code. In addition, the services of outside 
consultants and programmers were engaged to assist with project 
management and completion of coding for certain software programs. The 
general phases common to all business units are:

    (1) Inventory
    (2) Prioritization
    (3) Project start-up
    (4) Assessment
    (5) Remediation
    (6) Testing; and
    (7) Project closeout.

Implementation of the Plan is generally proceeding on schedule. 

Status

    Inventory and Assessment. The inventory and assignment of priority 
for each business unit were essentially completed on September 30, 
1998. Throughout the ongoing Y2K project, these inventory listings 
continue to be monitored.  Material items were defined as those the 
Company believed to involve a risk to the safety of individuals; or 
which may cause damage to property or the environment; or which may 
affect the Company's ability to provide gas production, 
transportation, or delivery. 
 
    Projects Planning. Based on the inventory and determined 
priorities, more than 700 individual items have been combined into 60 
projects. Project managers have been assigned, standard project 
documentation has been established, training sessions are being held 
with the various project managers, and standard management reporting 
forms have been devised and are being utilized. All of the foregoing 
activities comprise what has been defined as "project start-up."

    Infrastructure. The infrastructure section of the Plan addresses 
hardware and systems software other than applications software.  This 
effort is on schedule. The testing phase for this section has 
commenced and is ongoing as hardware or system software is remediated, 
upgraded or replaced.  Currently there are 20 projects identified in 
this section: 18 in start-up, 1 in assessment, 0 in remediation, 1 in 
testing, and 0 completed. Contingency planning for this section 
commenced in the third quarter of 1998.  All infrastructure activities 
are expected to be completed by mid-1999.
 
    Applications Software. The applications software section of the 
Plan addresses both the conversion of applications software that is 
not Y2K compliant and the replacement of such software.  The testing 
phase of this section is scheduled for completion by third quarter 
1999. The testing phase is conducted as the software is remediated or 
replaced.  Currently there are 39 projects identified in this section 
: 24 in start-up, 9 in assessment, 0 in remediation, 2 in testing, and 
4 completed and deemed to be Y2K ready.  Contingency planning for this 
section began in the third quarter of 1998 and is scheduled to be 
completed by mid-1999.

    Non-IT Equipment. Inventory and assessment phases are in progress 
for non- IT systems. This section of the Plan is considered to be one 
project and addresses hardware, software and associated embedded 
computer chips used in the operation of all facilities operated by the 
Company.  This section presents unique problems in that it is often 
difficult to determine whether embedded chips have a date function 
that present a Y2K problem.  It is also difficult to take certain 
critical systems, such as compressors and pipeline valves, off- line 
for testing. Because of this, the Company has engaged the services of 
a consultant, Stone & Webster, to help with this effort. The Company 
believes the replacement, repair and testing of non-IT systems 
equipment is on schedule to be completed by year end 1999. As of 
December 31, 1998, the embedded chip project is active and in the 
assessment phase. Contingency planning for this section began in the 
third quarter of 1998 and will be completed by year end 1999.

    Testing. The testing phases of the Plan are underway.  The Company 
has developed a testing procedure and guidelines to help system users 
and project managers develop their specific test plans and to ensure 
consistency in testing. The Company has assembled a test facility 
which duplicates, in essential details, the production environment.  
The test facility is in operation.  Critical systems already tested 
and determined to be Y2K ready include the SCADA gas control system 
and the company's internal telephone system (including switches) which 
connects to the local access provider. Other critical systems 
currently in the test facility include customer information systems 
(CIS) and gas measurement. Responsible project managers and system 
users continue to develop their test plans and schedule testing in the 
facility.

    Critical Third Parties. The outside vendors and customers section 
of the Plan includes the process of identifying and prioritizing 
critical suppliers and customers and communicating with them about 
their plans and progress in addressing their Y2K problems. The various 
business units have formed Project teams which have begun the detailed 
evaluation of the most critical third parties and to elicit required 
information.  The process of evaluating these external agents 
commenced in the third quarter of 1998 and first contacts with vendors 
have been made. This process is scheduled for completion by mid-1999, 
with follow-up reviews scheduled through the remainder of 1999. This 
procedure will include the development of contingency plans, scheduled 
for the second quarter of 1999, with completion by late 1999.  The 
Company estimates that this section was on schedule at December 31, 
1998.

Costs

    The total cost associated with efforts to become Y2K compliant is 
not expected to be material to the Company's financial position.  The 
current expense estimate of the Year 2000 Project is $ 5.1 million, 
with $2.3 million attributable to Questar Gas Company, $ 1.0 million 
attributable to Questar Pipeline Company and $0.4 million attributable 
to the Questar Market Resources group. The remainder is attributable 
to Questar InfoComm, Inc. and a small portion to Questar Corporation. 
This estimate does not include Questar's potential share of Y2K costs 
that may be incurred by partnerships and joint ventures in which the 
Company participates but is not the operator. The expense estimate is 
expected to change as the Project progresses. Funds for the Project 
are included in existing operating budgets.

Risks

    Failure to correct a material Y2K problem could result in an 
interruption, or a failure of, certain normal business activities or 
operations.  Such failures could materially and adversely affect the 
Company's results of operations, liquidity and financial condition.  
Due to the general uncertainty inherent in the Y2K problem, resulting 
in part from the uncertainty of the Y2K readiness of outside suppliers 
and customers and the embedded chip problems, the Company is unable to 
determine at this time whether the consequences of Y2K failures will 
have a material impact on the Company's results of operations, 
liquidity or financial condition. The Y2K Project has reduced and is 
expected to continue to significantly reduce the Company's level of 
uncertainty about the Y2K problem and, in particular, about the Y2K 
compliance and readiness of its material outside vendors and 
customers.  The Company believes that the possibility of significant 
interruptions of normal operations is not significant.

Forward-Looking Statements

    This annual report contains some forward-looking statements about 
future operations and expectations of Questar Corporation and its 
subsidiaries.  Management believes they are reasonable representations 
of Questar's expected performance at this time.  Actual results may 
vary from management's stated expectations and projections.

ITEM 8.  FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA

     The financial statements required by this Item are submitted in a 
separate section of this report.

ITEM 9.  CHANGES IN AND DISAGREEMENTS WITH ACCOUNTANTS ON ACCOUNTING 
AND FINANCIAL DISCLOSURE

     The Company has not changed its independent auditors or had any 
disagreements with them concerning accounting matters and financial 
statement disclosures within the last 24 months.

                             PART III

ITEM 10.  DIRECTORS AND EXECUTIVE OFFICERS OF THE REGISTRANT

     The information requested in this item concerning Questar's 
directors is presented in the Company's definitive Proxy Statement 
under the section entitled "Election of Directors" and is incorporated 
herein by reference.  A copy of the definitive Proxy Statement will be 
filed with the Securities and Exchange Commission on or about April 5, 
1999.

     The following individuals are serving as executive officers of 
the Company:

                               Primary Positions Held with
Name                           the Company and Affiliates

R. D. Cash       56    Chairman of the Board of Directors (May 1985); 
                       President and Chief Executive Officer, Director 
                       (May 1984); Chairman of the Boards of 
                       Directors, all affiliates except Questar Energy 
                       Trading.

D. N. Rose       54    President and Chief Executive Officer, Questar 
                       Gas (October 1984); President and Chief 
                       Executive Officer, Questar Pipeline (March 
                       1997); President and Chief Executive Officer, 
                       QRS (December 1996); President and Chief 
                       Executive Officer, QES (January 1999); 
                       Executive Vice President, Questar (February 
                       1996);  Senior Vice President, Questar (May 
                       1985 to February 1996); Director (May 1984); 
                       Director, Questar Gas (May 1984), Questar 
                       Pipeline (May 1996), QRS (December 1996), and 
                       QES (January 1999).

Gary L. Nordloh  51    President and Chief Executive Officer, Wexpro, 
                       Celsius, Questar E&P, QGM, Questar Energy 
                       Trading, Questar E&P, and Celsius Ltd. (at 
                       various times beginning in March 1991); 
                       Executive Vice President, Questar (February 
                       1996); Senior Vice President, Questar (March 
                       1991 to February 1996); Director, (October 
                       1996); Director, QMR (May 1991), all Market 
                       Resources subsidiaries (various times beginning 
                       in June 1989);  Chairman, Questar Energy 
                       Trading (August 1998).

Clyde M. Heiner  60    Senior  Vice  President,  Questar (May 1984); 
                       President and Chief Executive Officer, Questar 
                       InfoComm (February 1993); Director, QMR (May 
                       1984) and Questar InfoComm (February 1993).  

S. E. Parks      47    Vice President, Treasurer and Chief Financial 
                       Officer, Questar and all affiliates except 
                       Questar Energy Trading (February 1996); 
                       Treasurer, Questar and affiliates except 
                       Questar Energy Trading (at various dates 
                       beginning in May 1984); Director, Celsius and 
                       Questar E&P (May 1996).

Gary G. Sackett  58    Vice President and General Counsel (February 
                       1997 to April 1999); Associate General Counsel 
                       (May 1980 to February 1997) and Assistant Vice 
                       President (May 1986 to February 1997.)

Connie C. Holbrook 52  Vice President and Corporate Secretary (October 
                       1984); General Counsel (April 1999); Corporate 
                       Secretary, Questar Gas and other affiliates 
                       except Questar Energy Trading (at various dates 
                       beginning in March 1982); Director, Celsius 
                       (May 1985) and Questar E&P (June 1987).  

     There is no "family relationship" between any of the listed 
officers or between any of them and the Company's directors.  The 
executive officers serve at the pleasure of the Board of Directors. 
There is no arrangement or understanding under which the officers were 
selected.  Information concerning compliance with Section 16(a) of the 
Securities Exchange Act of 1934, as amended, is presented in the 
Company's definitive Proxy Statement under the section entitled 
"Section 16(a) Compliance" and is incorporated herein by reference.

ITEM 11.  EXECUTIVE COMPENSATION

     The information requested in this item is presented in Questar's 
definitive Proxy Statement for the Company's 1999 annual meeting, 
under the sections entitled "Executive Compensation" and "Election of 
Directors" and is incorporated herein by reference.  The sections of 
the Proxy Statement labelled "Committee Report on Executive 
Compensation" and "Cumulative Total Shareholder Return" are expressly 
not incorporated into this document.

ITEM 12.  SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND 
MANAGEMENT

     The information requested in this item for certain beneficial 
owners is presented in Questar's definitive Proxy Statement for the 
Company's 1999 annual meeting under the section entitled "Security 
Ownership, Principal Holders" and is incorporated herein by reference.  
Similar information concerning the securities ownership of directors 
and executive officers is presented in the definitive Proxy Statement 
for the Company's 1999 annual meeting under the section entitled 
"Security Ownership, Directors and Executive Officers" and is 
incorporated herein by reference.

ITEM 13.  CERTAIN RELATIONSHIPS AND RELATED TRANSACTIONS

     The information requested in this item for related transactions 
involving the Company's directors and executive officers is presented 
in the definitive Proxy Statement for the Questar's 1999 annual 
meeting under the section entitled "Election of Directors."

                              PART IV

ITEM 14.  EXHIBITS, FINANCIAL STATEMENT SCHEDULES, AND REPORTS ON FORM 
8-K

     (a)(1)(2)  Financial Statements and Financial Statement 
Schedules.  The financial statements identified in the List of 
Financial Statements are filed as part of this report.  

     (a)(3) Exhibits.  The following is a list of exhibits required to 
be filed as a part of this report in Item 14(c).

Exhibit No. Exhibit

  2.*       Plan and Agreement of Merger dated as of December 16, 
            1986, by and among the Company, Questar Systems 
            Corporation, and Questar E&P Corporation.  (Exhibit No. 
            (2) to Current Report on Form 8-K dated December 16, 
            1986.)

  3.1.*     Restated Articles of Incorporation as amended effective 
            May 19, 1998.  (Exhibit No. 3.1. to Form 10-Q Report for 
            Quarter ended June 30, 1998.)

  3.2.*     Bylaws (as amended effective August 11, 1998).  (Exhibit 
            No. 3.2. to Form 10-Q Report for Quarter ended June 30, 
            1998.)

  4.3.*1    Rights Agreement dated as of February 13, 1996, between 
            the Company and Chemical Mellon Shareholder Services 
            L.L.C. pertaining to the Company's Shareholder Rights 
            Plan.  (Exhibit No. 4. to Current Report on Form 8-K dated 
            February 13, 1996.)

  10.1.*    Stipulation and Agreement, dated October 14, 1981, 
            executed by Mountain Fuel; Wexpro; the Utah Department of 
            Business Regulations, Division of Public Utilities; the 
            Utah Committee of Consumer Services; and the staff of the 
            Public Service Commission of Wyoming.  (Exhibit No. 10(a) 
            to Mountain Fuel Supply Company's Form 10-K Annual Report 
            for 1981.)

  10.2.*2   Questar Corporation Annual Management Incentive Plan, as 
            amended and restated effective May 19, 1998.  (Exhibit No. 
            10.1. to Form 10-Q Report Quarter ended June 30, 1998.)

  10.3.*2   Questar Corporation Executive Incentive Retirement Plan, 
            as amended and restated effective May 19, 1998.  (Exhibit 
            No. 10.2. to Form 10-Q Report for Quarter Ended June 30, 
            1998.)

  10.4.*2   Questar Corporation Long-Term Stock Incentive Plan, as 
            amended and restated effective February 10, 1998.  
            (Exhibit No. 10.4. to Form 10-K Annual Report for 1997.)

  10.5.*2   Questar Corporation Executive Severance Compensation Plan, 
            as amended and restated effective May 19, 1998.  (Exhibit 
            No. 10.3. to Form 10-Q Report for Quarter Ended June 30, 
            1998.)

  10.6.*2   Questar Corporation Deferred Compensation Plan for 
            Directors, as amended and restated effective May 19, 1998.  
            (Exhibit No. 10.5. to Form 10-Q Report for Quarter Ended 
            June 30, 1998.)

  10.7.*2   Questar Corporation Supplemental Executive Retirement 
            Plan, as amended and restated effective June 1, 1998.  
            (Exhibit No. 10.6. to Form 10-Q Report for Quarter Ended 
            June 30, 1998.)

  10.8.*2   Questar Corporation Stock Option Plan for Directors, as 
            amended and restated effective October 29, 1998.  (Exhibit 
            No. 10.10. to Form 10-Q Report for Quarter Ended September 
            30, 1998.)

  10.9.*2   Form of Individual Indemnification Agreement dated 
            February 9, 1993 between Questar Corporation and 
            Directors.  (Exhibit No. 10.11. to Form 10-K Annual Report 
            for 1992.)

  10.10.*2  Questar Corporation Deferred Share Plan, as amended and 
            restated effective May 19, 1998.  (Exhibit No. 10.7. to 
            Form 10-Q Report for Quarter Ended June 30, 1998.)

  10.11.*2  Questar Corporation Deferred Compensation Plan, as amended 
            and restated effective May 19, 1998.  (Exhibit No. 10.10. 
            to Form 10-Q Report for Quarter Ended June 30, 1998.)

  10.12.*   Agreement and Plan of Reorganization dated April 29, 1994, 
            by and between Nextel Communications, Inc.; Questar 
            Corporation; Advance MobilComm, Inc.; Robert C. Mearns and 
            Francis G. Fuson.  (Exhibit No. 10.14. to Form 10-Q Report 
            for Quarter ended June 30, 1994.)

  10.13.*2  Questar Corporation Directors' Stock Plan as approved May 
            21, 1996.  (Exhibit No. 10.15. to Form 10-Q Report for 
            Quarter ended June 30, 1996.)

  10.14.*2  Questar Corporation Deferred Share Make-Up Plan.  (Exhibit 
            No. 10.8. to Form 10-Q Report for Quarter Ended June 30, 
            1998.)

  10.15.*2  Questar Corporation Special Situation Retirement Plan.  
            (Exhibit No. 10.10. to Form 10-Q Report for Quarter Ended 
            June 30, 1998.)

  21.       Subsidiary Information.

  23.       Consent of Independent Auditors.

  24.       Power of Attorney.

  27.       Financial Data Schedule.  

  99.1.     Undertakings for Registration Statements on Form S-3 (No. 
            33-48168) and on Form S-8 (Nos. 33-4436, 33-15149, 
            33-40800, 33-40801, 33-48169, 333-04913, and 333-04951).
________________________

     *Exhibits so marked have been filed with the Securities and 
Exchange Commission as part of the indicated filing and are 
incorporated herein by reference.

     1The name of the Rights Agent has been changed to ChaseMellon 
Shareholder Services, L.L.C.

     2Exhibit so marked is management contract or compensation plan or 
arrangement.

     (b)  The Company did not file any Current Reports on Form 8-K 
during the last quarter of 1998.



                    ANNUAL REPORT ON FORM 10-K

              ITEM 8, ITEM 14(a) (1) and (2), and (d)

                   LIST OF FINANCIAL STATEMENTS

            FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA

                   YEAR ENDED DECEMBER 31, 1998

                        QUESTAR CORPORATION

                       SALT LAKE CITY, UTAH


FORM 10-K -- ITEM 14 (a) (1) AND (2)

QUESTAR CORPORATION AND SUBSIDIARIES

LIST OF FINANCIAL STATEMENTS AND 
FINANCIAL STATEMENT SCHEDULES


The following financial statements of Questar Corporation and 
subsidiaries are included in Item 8:

     Consolidated Statements of income for Years ended December 31, 1998, 
     1997 and 1996

     Consolidated balance sheets at December 31, 1998 and 1997

     Consolidated statements of common shareholder's equity for Years 
     ended December 31, 1998, 1997 and 1995 

     Consolidated statements of cash flows for Years ended December 31, 
     1998, 1997 and 1996

     Notes to consolidated financial statements

Financial statement schedules, for which provision is made in the 
applicable accounting regulations of the Securities and Exchange 
Commission, are not required under the related instructions or are 
inapplicable, and therefore have been omitted.
<PAGE>

Report of Independent Auditors

Shareholders and Board of Directors
Questar Corporation

We have audited the accompanying consolidated balance sheets of
Questar Corporation and subsidiaries as of December 31, 1998 and
1997, and the related consolidated statements of income and
common shareholders' equity and cash flows for each of the three
years in the period ended December 31, 1998.  These financial
statements are the responsibility of the Company's management.
Our responsibility is to express an opinion on these financial
statements based on our audits.

We conducted our audits in accordance with generally accepted
auditing standards.  Those standards require that we plan and
perform the audit to obtain reasonable assurance about whether
the financial statements are free of material misstatement.  An
audit includes examining, on a test basis, evidence supporting
the amounts and disclosures in the financial statements.  An
audit also includes assessing the accounting principles used and
significant estimates made by management, as well as evaluating
the overall financial statement presentation.  We believe that
our audits provide a reasonable basis for our opinion.

In our opinion, the financial statements referred to above
present fairly, in all material respects, the consolidated
financial position of Questar Corporation and subsidiaries at
December 31, 1998 and 1997, and the consolidated results of their
operations and their cash flows for each of the three years in
the period ended December 31, 1998 in conformity with generally
accepted accounting principles.


/s/ ERNST & YOUNG LLP

Salt Lake City, Utah
February 8, 1999
<PAGE>


QUESTAR CORPORATION AND SUBSIDIARIES
CONSOLIDATED STATEMENTS OF INCOME
<TABLE>
<CAPTION>
                                                                Year Ended December 31,
                                                        1998        1997       1996
                                                                (In Thousands, Except Per Share Amounts)
<S>                                                 <C>         <C>         <C>
REVENUES                                               $906,256    $936,337  $817,981

OPERATING EXPENSES
  Natural gas and other product purchases               365,168     399,941   314,271
  Operating and maintenance                             212,358     204,834   196,389
  Depreciation and amortization                         125,157     118,037   105,209
  Write-down of oil and gas properties                   34,000       6,000
  Other taxes                                            36,792      37,370    30,489

    TOTAL OPERATING EXPENSES                            773,475     766,182   646,358

     OPERATING INCOME                                   132,781     170,155   171,623

INTEREST AND OTHER INCOME                                18,202      19,667    12,040

EARNINGS FROM UNCONSOLIDATED
     AFFILIATES                                           2,917       4,341       927

DEBT EXPENSE                                            (47,971)    (43,766)  (41,083)

     INCOME BEFORE INCOME TAXES                         105,929     150,397   143,507

INCOME TAXES                                             29,030      45,602    45,362

     NET INCOME                                         $76,899    $104,795   $98,145

EARNINGS PER COMMON SHARE
   Basic                                                  $0.93       $1.27     $1.20
   Diluted                                                 0.93        1.27      1.19

Average common shares outstanding
  Basic                                                  82,365      82,166    81,655
  Diluted                                                82,817      82,667    82,072
</TABLE>

See notes to consolidated financial statements


QUESTAR CORPORATION AND SUBSIDIARIES
CONSOLIDATED BALANCE SHEETS
<TABLE>
<CAPTION>
ASSETS                                              December 31,
                                                        1998        1997
                                                    (In Thousands)
<S>                                                 <C>         <C>
CURRENT ASSETS
  Cash and short-term investments                       $17,489     $17,271
  Accounts receivable                                   141,186     149,712
  Unbilled gas accounts receivable                       36,444      37,302
  Inventories, at lower of average cost or market
    Gas stored underground                               26,797      19,881
    Materials and supplies                               11,020       9,187
      Total inventories                                  37,817      29,068
  Purchased-gas adjustments                               2,067      37,251
  Prepaid expenses and deposits                          11,864      14,420
     TOTAL CURRENT ASSETS                               246,867     285,024

PROPERTY, PLANT AND EQUIPMENT
  Market Resources                                    1,412,641   1,175,241
  Regulated Services - gas distribution                 948,280     882,936
  Regulated Services - gas transmission                 670,456     580,603
  Regulated Services - other                              3,066       2,579
  Corporate and other operations                         70,079     100,578
                                                      3,104,522   2,741,937
LESS ALLOWANCES FOR DEPRECIATION
     AND AMORTIZATION
  Market Resources                                      717,129     617,065
  Regulated Services - gas distribution                 382,657     354,761
  Regulated Services - gas transmission                 215,589     202,427
  Regulated Services - other                              2,216       1,940
  Corporate and other operations                         39,290      34,524
                                                      1,356,881   1,210,717
     NET PROPERTY, PLANT AND EQUIPMENT                1,747,641   1,531,220

SECURITIES AVAILABLE FOR SALE,
     approximates fair value                             56,910      55,925

INVESTMENT IN UNCONSOLIDATED
     AFFILIATES                                          58,638      29,952

OTHER ASSETS
  Unamortized costs of reacquired debt                   13,326      11,666
  Income taxes recoverable from customers                 9,409      10,923
  Other noncurrent assets                                28,490      20,307
      TOTAL OTHER ASSETS                                 51,225      42,896

                                                     $2,161,281  $1,945,017
</TABLE>

LIABILITIES AND SHAREHOLDERS' EQUITY
<TABLE>
<CAPTION>
                                                           December 31,
                                                        1998        1997
                                                    (In Thousands)
<S>                                                 <C>         <C>
CURRENT LIABILITIES
  Short-term debt                                      $221,100    $131,200
  Accounts payable and accrued expenses
    Accounts and other payables                         170,670     134,976
    Federal income taxes                                  8,698       6,447
    Other taxes                                          22,712      19,527
    Interest                                              7,676       7,994
      Total accounts payable and accrued expenses       209,756     168,944
  Current portion of long-term debt                       6,006       6,068
     TOTAL CURRENT LIABILITIES                          436,862     306,212


LONG-TERM DEBT, less current portion                    615,770     541,986


DEFERRED INCOME TAXES                                   197,206     214,818


OTHER LONG-TERM LIABILITIES                              27,450      29,801


DEFERRED INVESTMENT TAX CREDITS                           6,035       6,422


COMMITMENTS AND CONTINGENCIES - Note 6


COMMON SHAREHOLDERS' EQUITY
  Common stock - without par value; 350,000,000
     shares authorized;  82,632,078 outstanding at
     December 31, 1998 and 82,142,084 outstanding
     at December 31, 1997                               298,888     291,322
  Retained earnings                                     564,958     541,663
  Other comprehensive income                             18,067      22,966
  Note receivable from employee
    investment plan (ESOP)                               (3,955)    (10,173)
     TOTAL COMMON SHAREHOLDERS' EQUITY                  877,958     845,778

                                                     $2,161,281  $1,945,017
</TABLE>

See notes to consolidated financial statements
<PAGE>

QUESTAR CORPORATION AND SUBSIDIARIES
CONSOLIDATED STATEMENTS OF COMMON SHAREHOLDERS' EQUITY
<TABLE>
<CAPTION>
                                                                                         Other
                                                                               Note     Compre-   Compre-
                                         Common Stock             Retained  Receivable   hensive   hensive
                                           Shares      Amount     Earnings  from ESOP    Income    Income
                                         (Dollars in Thousands)
<S>                                      <C>        <C>         <C>         <C>       <C>         <C>
Balances at January 1, 1996              81,395,628    $283,776    $438,284  $(21,238)    $11,853
  Issuance of common stock                  744,334      10,396
  Purchase of common stock                  (90,188)     (1,559)
  1996 net income                                                    98,145                       $98,145
  Payment of dividends
    Preferred stock                                                    (391)
    Common stock of $.595 per share                                 (48,589)
  Income tax benefit of dividends
   paid to ESOP                                                         350
  Collection of note receivable from ESOP                                       5,682
  Other comprehensive income
  Unrealized loss on securities available
  for sale, net of income tax benefits of
  $2,752,000                                                                               (4,443) (4,443)
  Foreign currency translation adjustment,
  net of income tax benefits of $97,000                                                      (181)   (181)
Balances at December 31, 1996            82,049,774     292,613     487,799   (15,556)      7,229 $93,521
  Issuance of common stock                  745,212      11,328
  Purchase of common stock                 (652,902)    (12,619)
  1997 net income                                                   104,795                       104,795
  Payment of dividends
    Preferred stock                                                    (192)
    Common stock of $.62 per share                                  (50,943)
  Premium paid on retired preferred stock                               (48)
  Income tax benefit of dividends
  paid to ESOP                                                          252
  Collection of note receivable from ESOP                                       5,383
  Other comprehensive income
  Unrealized gain on securities
  available for sale,
  net of income taxes of $9,642,000                                                        15,564  15,564
  Foreign currency translation adjustment,
     net of income taxes of $98,000                                                           173     173
Balances at December 31, 1997            82,142,084     291,322     541,663   (10,173)     22,966 120,532
  Issuance of common stock                  521,879       8,243
  Purchase of common stock                  (31,885)       (677)
  1998 net income                                                    76,899                       $76,899
  Payment of common stock dividends
      of $.6525 per share                                           (53,747)
  Income tax benefit of dividends
    paid to ESOP                                                        143
  Collection of note receivable from ESOP                                       6,218
  Other comprehensive income
    Unrealized loss on securities
     available for sale,
  net of income tax benefit of $3,086,000                                                  (4,992) (4,992)
  Foreign currency translation adjustment,
        net of income taxes of $53,000                                                         93      93
Balances at December 31, 1998            82,632,078    $298,888    $564,958   $(3,955)    $18,067 $72,000
</TABLE>

See notes to consolidated financial statements
<PAGE>

QUESTAR CORPORATION AND SUBSIDIARIES
CONSOLIDATED STATEMENTS OF CASH FLOWS
<TABLE>
<CAPTION>
                                                    Year Ended December 31,
                                                        1998        1997       1996
                                                                (In Thousands)
<S>                                                 <C>         <C>         <C>
OPERATING ACTIVITIES
  Net income                                            $76,899    $104,795   $98,145
  Depreciation and amortization                         128,664     122,517   110,006
  Deferred income taxes                                 (14,524)      5,929    17,137
  Deferred investment tax credits                          (387)       (388)     (461)
  Write-down of oil and gas properties                   34,000       6,000
  Income from unconsolidated affiliates, net
     of cash distributions                                 (360)     (2,541)     (655)
  Gain from sales and conversion of securities          (10,474)     (9,376)   (6,265)
                                                        213,818     226,936   217,907
  Changes in operating assets and liabilities
    Accounts receivable                                   9,922      (9,555)  (51,604)
    Inventories                                          (7,238)     (6,725)    5,767
    Prepaid expenses and deposits                         2,556        (865)   (2,590)
    Accounts payable and accrued expenses                38,207         686    44,571
    Federal income taxes                                  2,251       7,444     3,048
    Purchased-gas adjustments                            35,184     (13,041)  (33,392)
    Other                                               (10,015)     (2,202)     (786)
    NET CASH PROVIDED FROM OPERATING
        ACTIVITIES                                      284,685     202,678   182,921

INVESTING ACTIVITIES
  Capital expenditures
1     Purchase of property, plant and equipment         (427,680)   (199,919) (287,489)
     Other investments                                  (33,667)    (12,878)   (4,346)
         Total capital expenditures                    (461,347)   (212,797) (291,835)
  Proceeds from disposition of property, plant
    and equipment, and investments                       44,496      13,118    10,418
  Proceeds from sales of securities                       6,759      17,268    13,202
   NET CASH USED IN INVESTING ACTIVITIES               (410,092)   (182,411) (268,215)

FINANCING ACTIVITIES
  Issuance of common stock                                8,243      11,328    10,396
  Purchase of Questar common stock                         (677)    (12,619)   (1,559)
  Redemption of preferred stock                                      (4,876)     (129)
  Issuance of long-term debt                            152,743      60,047   181,500
  Repayment of long-term debt                           (77,198)    (70,479)  (61,985)
  Increase in short-term loans                           89,900      53,400       600
  Collection of note receivable from ESOP                 6,218       5,383     5,682
  Income tax benefit of dividends paid to ESOP              143         252       350
  Payment of dividends                                  (53,747)    (51,135)  (48,980)
    NET CASH PROVIDED FROM (USED IN)
      FINANCING ACTIVITIES                              125,625      (8,699)   85,875
CHANGE IN CASH AND SHORT-TERM INVESTMENTS                   218      11,568       581
BEGINNING CASH AND SHORT-TERM INVESTMENTS                17,271       5,703     5,122
ENDING CASH AND SHORT-TERM INVESTMENTS                   17,489      17,271     5,703

</TABLE>
See notes to consolidated financial statements
<PAGE>

QUESTAR CORPORATION AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

Note 1 - Summary of Accounting Policies

Principles of Consolidation:  The consolidated financial
statements contain the accounts of Questar Corporation and
subsidiaries (Questar or the Company).  Questar is an intregrated
resources and energy services holding company with two principal
lines of business: nonregulated and regulated. The Company's
nonregulated activities of exploration and production, gas
gathering and processing, and energy marketing are conducted by
Market Resources. The Company's regulated activities of
natural-gas distribution, transmission and storage operations are
conducted by Regulated Services. Natural gas-distribution
activities are conducted by Questar Gas, formerly named Mountain
Fuel, and transmission and storage activities are conducted by
Questar Pipeline. Regulated Services also includes Questar Energy
Services, formerly part of Market Services, which conducts retail
energy-services operations.  Corporate and other operations
include data processing, telecommunications and corporate
activities. All significant intercompany accounts and
transactions have been eliminated in consolidation.

Investments in Unconsolidated Affiliates:  Questar uses the
equity method to account for investments in affiliates in which
it does not have control.  Principal affiliates include:
Overthrust Pipeline Company, TransColorado Gas Transmission
Company, Canyon Creek Compression Company, Western Market Center
and Blacks Fork Gas Processing Company.  Generally, the Company's
investment in these affiliates equals the underlying equity in
net assets.

Regulation:  Questar Gas is regulated by the Public Service
Commission of Utah (PSCU) and the Public Service Commission of
Wyoming (PSCW).  While Questar Gas also serves a small area of
southeastern Idaho, the Public Utilities Commission of Idaho has
deferred to the PSCU for rate oversight of this area. Questar
Pipeline is regulated by the Federal Energy Regulatory Commission
(FERC).  These regulatory agencies establish rates for the
storage, transportation and sale of natural gas.  The regulatory
agencies also regulate, among other things, the extension and
enlargement or abandonment of jurisdictional natural gas
facilities.  Regulation is intended to permit the recovery,
through rates, of the cost of service, including a rate of return
on investment.

The financial statements of rate-regulated businesses are
presented in accordance with regulatory requirements.  Methods of
allocating costs to time periods, in order to match revenues and
expenses, may differ from those of nonrate regulated businesses
because of cost-allocation methods used in establishing rates.

Use of Estimates:  The preparation of financial statements in
conformity with generally accepted accounting principles requires
management to make estimates and assumptions that affect the
amounts of assets and liabilities and disclosure of contingent
liabilities reported in the financial statements and accompanying
notes.  Actual results could differ from those estimates.

Revenue Recognition:   Revenues are recognized in the period that
services are provided or products are delivered.  Questar Gas
records gas-distribution revenues for gas delivered to
residential and commercial customers but not billed at the end of
the accounting period.  Rate regulated companies periodically
collect revenues subject to possible refunds pending final orders
from regulatory agencies. These companies establish reserves for
revenues collected subject to refund.

Purchased-Gas Adjustments:  Questar Gas accounts for
purchased-gas costs in accordance with procedures authorized by
the PSCU and PSCW under which purchased-gas costs that are
different from those provided for in present rates are
accumulated and recovered or credited through future rate
changes.

Cash and Short-Term Investments:  Short-term investments consist
principally of repurchase agreements with maturities of three
months or less.

Securities Available for Sale:  The value of securities available
for sale approximates fair value at the balance sheet date based
on published share prices.  The Company records unrealized gains
or losses, based on market value net of income taxes, as a
separate component of other comprehensive income in shareholders'
equity at the balance sheet date.  Gains or losses resulting from
the sale of securities are included in the determination of
income.

Property, Plant and Equipment:  Property, plant and equipment is
stated at cost.  The Company employs the full-cost accounting
method for a majority of its gas and oil exploration and
development activities. Under the full-cost method, all costs
associated with the acquisition, exploration and development of
oil and gas reserves are capitalized.  If net capitalized costs
exceed the present value of estimated future net revenues from
proved gas and oil reserves plus the fair value of unproved
properties, (the full-cost ceiling) the excess is expensed.
Wexpro, a company in the Market Resources group, uses the
successful-efforts accounting method to account for its
development activities under the terms of the Wexpro settlement
agreement (Note 9). Questar follows the provisions of Statement
of Financial Accounting Standards (SFAS) 121, "Accounting for the
Impairment of Long-Lived Assets and for Long-Lived Assets to be
Disposed of." The provisions of SFAS 121 do not supersede
full-cost accounting rules, which require a quarterly full-cost
ceiling test.

The provision for depreciation and amortization is based upon
rates that will systematically charge the costs of assets against
income over the estimated useful lives of those assets.  The
investment in natural gas distribution, transmission, storage and
gathering property, plant and equipment, and processing plants is
charged to expense using the straight-line method.  The costs of
gas and oil wells and leaseholds are charged to expense using the
units-of-production method.  Average depreciation and
amortization rates used were as follows:
<TABLE>
<CAPTION>
                                             1998        1997        1996
<S>                                      <C>        <C>         <C>
Market Resources
  Exploration and production,
   per Mcf equivalent
      Full-cost amortization rate
       (U.S. and Canada)                      $0.85       $0.84       $0.79
      Wexpro depreciation rate                $0.39       $0.39       $0.45
  Gas gathering                                 4.9%        5.8%        4.3%
Regulated Services
  Natural gas distribution
     Distribution plant                         4.3%        4.2%        4.1%
     Gas wells, per Mcf                       $0.17       $0.16       $0.16
  Natural gas transmission                      3.2%        3.5%        3.7%
Other operations                                8.5%        6.7%        7.0%
</TABLE>

Acquisition:  A subsidiary of Market Resources acquired 100
percent of the common stock of HSRTW, Inc., a wholly owned
subsidiary of HS Resources, Inc. for $155 million, effective
September 1, 1998.  Market Resources obtained an estimated 150
billion cubic feet equivalent of proved oil and gas reserves
primarily in Oklahoma, as well as in Texas, Arkansas and
Louisiana as a result of the transaction.  The transaction was
accounted for as a purchase.

Capitalized Interest:   Questar's regulated subsidiaries
capitalize the cost of capital employed during the construction
period of plant and equipment and the Company's nonregulated
subsidiaries capitalize interest costs during construction of
assets when applicable.  The sum of allowance for funds used
during construction (AFUDC) and capitalized interest amounted to
$2,847,000 in 1998, $2,268,000 in 1997 and $1,486,000 in 1996.

Reacquisition of Debt:  Gains and losses on the reacquisition of
debt by regulated affiliates are deferred and amortized as debt
expense over the would-be remaining life of the retired debt or
the life of the replacement debt in order to match regulatory
treatment.

Foreign Currency Translation:  The local currency is the
functional currency of the Company's foreign operations.
Translation from the functional currency to U. S. dollars is
performed for balance sheet accounts using the exchange rate in
effect at the balance sheet date.  Revenue and expense accounts
are translated using an average exchange rate.   Adjustments
resulting from such translations are reported as a separate
component of other comprehensive income in shareholders' equity.
Deferred income taxes have been provided on translation
adjustments because the earnings are not considered to be
permanently invested.

Energy Price Risk Management:  Market Resources enters into
swaps, futures contracts or option agreements to hedge exposure
to price fluctuations in connection with marketing of the
Company's natural gas and oil production, and to secure a known
margin for the purchase and resale of gas, oil and electricity in
marketing activities. There is a high degree of correlation
between such contracts and the physical transactions. The timing
of production and of the hedge contracts is closely matched.
Hedge prices are established in the areas of Market Resources'
production operations.  The Company settles most contracts in
cash and recognizes the gains and losses on hedge transactions
during the same time period as the related physical transactions.
Contracts no longer qualifying for high correlation with the
physical transactions would be marked-to-market and recognized in
current period income. Cash flows from the hedge contracts are
reported in the same category as cash flows from the hedged
assets. The Company does not enter into hedging contracts for
speculative purposes.

Interest Rate Risk Management:  The Company uses fixed and
variable rate debt as part of its financing plans. These
agreements expose the Company to market risk related to changes
in interest rates.  The Company has entered into interest-rate
swaps for the purpose of managing interest costs. Changes in
interest payable or receivable under these agreements are
recorded as increases or decreases of interest expense in the
accounting period incurred.  The Company does not hold or issue
derivative financial instruments for speculative purposes.

Income Taxes:  Regulated operations record cumulative increases
in deferred taxes as income taxes recoverable from customers.
Questar Gas and Questar Pipeline have adopted procedures with
their regulatory commissions to include under-provided deferred
taxes in customer rates on a systematic basis.  Questar Gas and
Questar Pipeline use the deferral method to account for
investment tax credits as required by regulatory commissions.
Questar allocates income taxes to subsidiaries on a separate
return basis except that subsidiaries are paid for all tax
benefits utilized in the consolidated tax return.

Earnings Per Share:  The Company presents basic and diluted
earnings per share (EPS) on the face of the income statement.
Basic EPS are computed by dividing net income available to common
shareholders by the weighted average number of common shares
outstanding during the accounting period, including ESOP shares.
Diluted EPS include the potential dilution as a result of
exercising stock options, which represents the difference between
the number of basic and diluted average shares outstanding shown
on the Consolidated Statements of Income. In June 1998, Questar's
common stock was split two shares for each share outstanding.

Comprehensive Income: Questar reports comprehensive income on the
Consolidated Statement of Shareholders' Equity. Other
comprehensive income transactions that currently apply to Questar
are the unrealized gains and losses in the value of investments
available for sale and foreign currency translation adjustments.
The accumulated foreign currency translation adjustments and
unrealized gains on securities available for sale amounted to
$85,000 and $17,982,000, respectively, at December 31, 1998 and
($8,000) and $22,947,000, respectively at December 31, 1997.
Income tax expenses associated with realized gains from selling
securities available for sale, which were included in other
comprehensive income in prior years, were $1.9 million in 1998,
$3.8 million in 1997 and $2.6 million in 1996.

Business Segments:  Questar's lines of business disclosures are
presented in accordance with SFAS 131, "Disclosures about
Segments of an Enterprise and Related Information," based on how
top management evaluates the performance of its business
segments.  The new standard affects the level of information
disclosed, not the measurement of operating results, cash flows
or financial position. Certain intersegment sales include
intercompany profit.

Reclassifications:  Certain reclassifications were made to the
1997 and 1996 financial statements to conform with the 1998
presentation.

New accounting standard:  The Company is required to adopt the
accounting provisions of Statement of Financial Accounting (SFAS)
133 "Accounting for Derivative Instruments and Hedging
Activities" in 2000.  The new accounting rules require that the
fair value of hedging instruments be measured and recorded as
either assets or liabilities on the balance sheet with a regular,
periodic mark-to-market adjustment.  A majority of the Company's
hedging activities will likely qualify as cash flow hedges where
mark-to-market adjustments are recorded in other comprehensive
income. The new accounting rule is not expected to have a
significant effect on cash flow or net income. However, the
Company has not completed its evaluation of the impact of SFAS
133.


Note 2 - Debt

Questar has short-term line-of-credit arrangements with several
banks under which it may borrow up to $285,200,000.  The
Company's lines of credit borrowing capacity was expanded in 1998
to provide interim financing to accommodate capital spending
until long-term financing can be arranged.  These lines have
interest rates generally below the prime interest rate.
Commercial paper borrowings are backed by the short-term
line-of-credit arrangements. The details of short-term debt were
as follows:
<TABLE>
<CAPTION>
                                                         December 31,
                                                        1998        1997
                                                    (Dollars In Thousands)
<S>                                                 <C>         <C>
Commercial paper with variable interest rates          $171,100    $131,200
Bank loans with variable interest rates                  50,000
                                                       $221,100    $131,200
Weighted average interest rate at December 31              5.38%       6.14%

The details of long-term debt were as follows:
                                                         December 31,
                                                        1998        1997
                                                         (In Thousands)
Market Resources
  Revolving-credit loan due 2002 with variable
     interest rates (5.68% at December 31, 1998)       $181,624    $133,387
Regulated Services - Natural gas distribution
  Medium-term notes 6.85% to 8.43%, due 2007
    to 2024                                             225,000     225,000
Regulated Services - Natural gas transmission
  Medium-term notes 5.85% to 6.48%, due 2008
    to 2018                                              88,400
  9 3/8% debentures due 2021                             85,000      85,000
  9 7/8% debentures due 2020                             30,000      50,000
Corporate and other
  Revolving-credit term loan due 2001 with variable
    interest rates (5.72% at December 31, 1998)           6,000      13,000
  8.28% ESOP notes due 1999                               6,000      11,300
  7.11% senior notes due 2012 secured by real estate                 30,638
  Other                                                     161         166
    Total long-term debt outstanding                    622,185     548,491
 Less current portion                                     6,006       6,068
 Less unamortized debt discount                             409         437
                                                       $615,770    $541,986
</TABLE>

Maturities of long-term debt for the five years following
December 31, 1998, are as follows:

                                         (In Thousands)
    1999                                     $6,006
    2000                                          7
    2001                                      6,008
    2002                                    185,883
    2003                                      4,260

Cash paid for interest was $49,430,000 in 1998, $42,289,000 in
1997 and $41,338,000 in 1996.

The 7.11% senior notes due 2012 were repaid in the fourth quarter
of 1998 in connection with the sale and lease-back of Questar's
headquarters building.

At December 31, 1998, Questar Pipeline guaranteed $80 million of
long-term debt borrowed by TransColorado Gas Transmission
Company.  Market Resources guaranteed $9 million of long-term
debt borrowed by Blacks Fork Gas Processing Company.


Note 3 - Common Stock

In June 1998, Questar's common stock was split into two shares
for each share outstanding.  Common stock disclosures in prior
period financial statements have been restated to reflect the
stock split.

Employee Investment Plan:  The Employee Investment Plan (ESOP)
allows eligible employees to purchase shares of Questar
Corporation common stock or other investments through payroll
deduction. Beginning January 1, 1999, employee purchases will be
limited to pretax contributions.  The Company will increase its
matching contributions of common stock to the ESOP from 75% to
80% of the employees' purchases and continue to contribute an
additional $200 of common stock to the account of each eligible
employee.  In June 1989, Questar sold 3,985,768 shares of its
common stock (LESOP shares) to the trustee of the ESOP to prefund
its matching obligation for a 10-year period.  This prefunding
arrangement combined with an increase in stock price has enabled
the Company to provide an additional annual contribution of 10%
to 80% to the 75% matching contribution since 1993. The
prefunding terms of the LESOP expire in June of 1999.

The ESOP trustee financed the purchase of stock by borrowing $35
million from the Company.  A note receivable from the ESOP was
recorded as a reduction of common shareholders' equity.  At the
same time, Questar borrowed $35 million from a group of insurance
companies. Final payment of the loan will be made July 1999.
Interest expense on these notes to the insurance companies
totaled $716,000 in 1998, $1,130,000 in 1997 and $2,109,000 in
1996.

The ESOP is repaying the loan to Questar over 10 years using
Company contributions and dividends on LESOP shares.  As the
LESOP loan is repaid, shares are released and allocated to
employee accounts. Employee accounts are credited with an
equivalent number of shares for dividends paid on allocated LESOP
shares and used by the ESOP to repay the Company.  At December
31, 1998, 3,682,809 shares were allocated to employees, with the
remaining 302,959 shares unallocated. The Company's contribution
to the ESOP is determined by the amount of debt service required
after considering dividends paid on LESOP shares.  Questar's
expense and contribution to the ESOP, dividends paid by the
Company to the ESOP, and income tax benefits for dividends paid
on ESOP shares and dividends paid directly to the ESOP are
summarized below:
<TABLE>
<CAPTION>

                                                                Year Ended December 31,
                                                        1998        1997       1996
                                                                (In Thousands)
<S>                                                 <C>         <C>         <C>
Company's expense and contribution to the ESOP
Dividends paid by the Company to the ESOP                $4,542      $4,289    $3,849
  Allocated shares
  Unallocated shares                                     $2,195      $1,879    $1,571
                                                            374         660       915
Income tax benefits for dividends paid on                $2,569      $2,539    $2,486
  ESOP shares were recorded as
     Reduction of income tax expense                       $840        $719      $601
     Direct increase to retained earnings                   143         252       350
                                                           $983        $971      $951
</TABLE>

Dividend Reinvestment and Stock Purchase Plan:  The Dividend
Reinvestment and Stock Purchase Plan (Reinvestment Plan) allows
shareholders to reinvest dividends or invest additional funds in
common stock.  The Reinvestment Plan purchased common stock from
the Company amounting to 329,794 shares in 1998, 296,178 shares
in 1997 and 261,874 shares in 1996.  At December 31, 1998,
2,614,808 shares were reserved for future issuance.

Stock Plans:  The Company has a Long-term Stock Incentive Plan
for officers and key employees and a Stock Option Plan for
nonemployee directors (Stock Plans). The number of shares made
available for a given year for options or other stock awards
under the Long-term Stock Incentive Plan is 1% of the outstanding
shares of common stock on the first day of the calendar year.  No
awards may be granted under the Stock Plans after May 2001.  The
option price equals the market price of the stock on the grant
date.  Stock options for employees have a 10-year life and vest
in four equal annual installments beginning six months after
grant date.  Nonemployee directors may receive shares of common
stock instead of cash in payment for directors fees under a
separate plan.  At December 31, 1998 there were 95,602 shares
available for future issuance under this plan.

No expense has been recorded on the options granted to
nonemployee directors to date.  However, a new accounting
interpretation expected to be finalized in 1999 contains a
provision that will require the Company to record an expense
based on the fair value of the options on the vesting date.  Fair
value will be determined using a mathematical model.

No compensation expense is recorded for stock options issued to
employees.  If compensation expense had been recorded, it would
be based on an estimate of the fair value of stock options
granted, and the Company's net income and earnings per share
would have been lower.  The pro forma amounts of net income and
earnings per share shown below were calculated for options
granted since January 1, 1995. For purposes of the pro forma
expense, the weighted average fair value of the options was
amortized over the vesting period. The pro forma estimates rely
upon subjective assumptions and the use of a mathematical model
to estimate value, and may not be representative of future
results.
<TABLE>
<CAPTION>
                                            1998        1997        1996
                                      (In Thousands, Except Per Share Amounts)
<S>                                      <C>        <C>         <C>
As reported
     Net income                             $76,899    $104,795     $98,145
     Diluted earnings per share               $0.93       $1.27       $1.19
Pro forma
     Net income                             $74,347    $102,073     $95,874
     Diluted earnings per share               $0.90       $1.24       $1.17
</TABLE>

Transactions involving option shares in the Stock Plans are
summarized as follows:
<TABLE>
<CAPTION>
                                                                  Weighted
                                                                   Average
                                                                 Exercise
                                           Shares   Price Range    Price
<S>                                      <C>        <C>         <C>
Balance at January 1, 1996                2,958,526  $8.85- $15.     $13.56
Granted                                     858,200       16.81       16.81
Cancelled                                   (76,500)  13.69 - 16      15.28
Exercised                                  (701,416)  8.85 - 16.      12.00
Balance at December 31, 1996              3,038,810 9.81 - 16.81      14.80
Granted                                     795,400       19.13       19.13
Cancelled                                  (155,200)  13.69 - 19      16.34
Exercised                                  (738,400)  9.81 - 16.      13.43
Balance at December 31, 1997              2,940,610  9.81 - 19.1      16.22
Granted                                     857,800       21.38       21.38
Cancelled                                   (77,200)13.69 - 21.3      17.33
Exercised                                  (437,209)9.81 - 16.81      14.72
Balance at December 31, 1998              3,284,001 $9.81 -$21.3     $17.74

Exercisable at December 31, 1998          2,140,251                  $16.53
Available for future grant at December 31 1,163,974
</TABLE>

The stock options at December 31, 1998 had a weighted average
remaining life of 7.3 years. The fair value of the stock options
was determined on the grant date using the Black-Scholes option
valuation model.  The calculated fair value of options granted
and major assumptions used in the model at the date of grant were
as follows:
<TABLE>
<CAPTION>
                                            1998        1997        1996
<S>                                      <C>        <C>         <C>
Fair value of options at grant date           $3.94       $3.76       $3.75
Risk-free interest rate                        5.56%       6.15%       5.73%
Expected price volatility                      20.2%       19.0%       20.9%
Expected dividend yield                        3.09%       3.19%       3.51%
Expected life in years                          4.4         5.1           8
</TABLE>

In addition to stock options, the Company issued restricted
shares to officers and key employees as part of  its payment of
bonuses.  Compensation expense is recorded when the bonus is
earned.  Restricted stock vests in two equal, annual installments
beginning one year after grant.  Stock is issued at the market
price on date of issuance.  Recipients of restricted stock awards
are entitled to full voting rights and receipt of dividends.
<TABLE>
<CAPTION>
                                            1998        1997        1996
<S>                                      <C>        <C>         <C>
Shares of restricted stock awarded            7,620      24,274      46,972
Market price at award date                   $17.00      $21.38      $19.13
</TABLE>

Shareholder Rights:  On February 13, 1996, Questar's Board of
Directors declared a stock right dividend for each outstanding
share of common stock.  The stock rights were issued March 25,
1996. The rights become exercisable if a person, as defined,
acquires 15% or more of the Company's common stock or announces
an offer for 15% or more of the common stock.  Each right
initially represents the right to buy one share of the Company's
common stock for $87.50.  Once any person acquires 15% or more of
the Company's common stock, the rights are automatically
modified.  Each right not owned by the 15% owner becomes
exercisable for the number of shares of Questar's stock that have
a market value equal to two times the exercise price of the
right.  This same result occurs if a 15% owner acquires the
Company through a reverse merger when Questar and its stock
survive.  If the Company is involved in a merger or other
business combination at any time after the rights become
exercisable, rightsholders will be entitled to buy shares of
common stock in the acquiring company having a market value equal
to twice the exercise price of each right. The rights may be
redeemed by the Company at a price of $.005 per right until 10
days after a person acquires 15% ownership of the common stock.
The rights expire March 25, 2006.


Note 4 -  Financial Instruments and Risk-Management Activities

The carrying value and estimated fair values of the Company's
financial instruments were as follows:
<TABLE>
<CAPTION>
                                         December 31, 1998      December 31, 1997
                                          Carrying   Estimated   Carrying   Estimated
                                            Value    Fair Value    Value    Fair Value
                                         (In Thousands)         (In Thousands)
<S>                                      <C>        <C>         <C>         <C>
Financial assets
    Cash and short-term investments         $17,489     $17,489     $17,271   $17,271
Financial liabilities
    Short-term loans                        221,100     221,100     131,200   131,200
    Long-term debt, including
     current portion                        622,185     670,075     548,491   596,804
Gas and oil price hedging contracts                       6,000                 2,600
</TABLE>

The Company used the following methods and assumptions in
estimating fair values:  (1) Cash and short-term investments and
short-term loans - the carrying amount approximates fair value;
(2) Long-term debt - the carrying amount of variable-rate debt
approximates fair value. The fair value of fixed-rate debt is
based on quoted market prices, and on the discounted present
value of cash flows using the Company's current borrowing rates;
(3) Gas and oil price hedging contracts - the fair value of
contracts is based on market prices as posted on the NYMEX,
Inside FERC or other indices at the end of the year.

The average price of the oil contracts at December 31, 1998, was
$17.75 per bbl and was based on the average of fixed amounts in
contracts which settle against the NYMEX.  All oil contracts
relate to Company-owned production where basis adjustments would
result in a net to the well price of $16.26 per bbl.  The average
price of the gas contracts at December 31, 1998 was $1.97 per Mcf
representing the average of contracts with different terms
including fixed, various into-the-pipe postings and NYMEX
references.  Gas-hedging contracts were in place for Market
Resources-owned production and gas-marketing transactions.
Transportation and heat-value adjustments on the hedges of
Company-owned gas as of December 31, 1998, would result in an
average price of $2.07 per Mcf, net back to the well.

Fair value is calculated at a point in time and does not
represent the amount the Company would pay to retire the debt
securities.  In the case of gas and oil price-hedging activities,
the fair value calculation does not consider the physical side of
gas and oil transactions.

Energy Price Risk Management:  The Market Resources group held
open hedge contracts covering the price exposure for about 45.3
million dth of gas and 464,000 bbls of oil at December 31, 1998,
and 45 million dth of natural gas and 167,000 bbls of oil at
December 31, 1997.   The contracts at December 31, 1998 had terms
extending through March 2000, with about 96% of those contracts
expiring by the end of 1999. A primary objective of energy-price
hedging is to protect product sales from adverse changes in
energy prices. The Company does not enter into hedging contracts
for speculative purposes.

Interest Rate Risk Management:  The Market Resources group
entered into a three-year interest rate-swap agreement in 1995
covering $25 million notional principal of floating-rate debt.
The Market Resources group recognizes interest expense and
receives a payment based on LIBOR (5.3125% at December 31, 1998)
in exchange for making a payment at a fixed rate of 5.55%.   The
agreement terminated January 1999.

Credit Risk:  The Company's primary market areas are the Rocky
Mountain and Midcontinent regions of the United States.  Exposure
to credit risk may be impacted by the concentration of customers
in these regions due to changes in economic or other conditions.
Customers include individuals and numerous industries that may be
affected differently by changing conditions.  Management believes
that its credit-review procedures, loss reserves and customer
deposits have adequately provided for usual and customary
credit-related losses.


Note 5 - Income Taxes

Details of Questar's income tax expenses and deferred income
taxes are provided in the following tables. The components of
income taxes were as follows:
<TABLE>
<CAPTION>
                                               Year Ended December 31,
                                            1998        1997        1996
                                                    (In Thousands)
<S>                                      <C>        <C>         <C>
  Federal
    Current                                 $39,454     $36,131     $21,412
    Deferred                                 (7,160)      6,773      18,732
  State
    Current                                   3,918       5,742       4,442
    Deferred                                    346         639       1,273
  Deferred investment tax credits              (387)       (388)       (461)
  Foreign income tax benefits                (7,141)     (3,295)        (36)
                                            $29,030     $45,602     $45,362
</TABLE>

The difference between income tax expense reported and the tax
computed by applying the statutory federal income tax rate of 35%
to income before income taxes is explained as follows:
<TABLE>
<CAPTION>
                                                    Year Ended December 31,
                                            1998        1997        1996
                                                    (In Thousands)
<S>                                      <C>        <C>         <C>
  Income before income taxes               $105,929    $150,397    $143,507

  Federal income taxes at 35%             $  37,075  $   52,639  $   50,227
  State income taxes, net of federal income
    tax benefit                               2,773       4,138       4,160
  Tight-sands gas production credits         (7,953)     (9,319)     (9,491)
  Investment tax credits utilized              (387)       (388)       (461)
  Deferred taxes related to regulated assets
    that were not provided in prior years       922         884         857
  Tax benefits from dividends paid to ESO      (840)       (719)       (601)
  Foreign income tax benefits                (1,061)     (1,340)        (36)
  Other                                      (1,499)       (293)        707
    Income tax expense                      $29,030     $45,602     $45,362
  Effective income tax rate                    27.4%       30.3%       31.6%
</TABLE>

Significant components of the Company's deferred tax liabilities
and assets were as follows:
<TABLE>
<CAPTION>
                                                    December 31,
                                                        1998        1997
                                                    (In Thousands)
<S>                                                 <C>         <C>
Deferred tax liabilities
  Property, plant and equipment                        $200,213    $199,888
  Purchased-gas adjustments                                 785      14,155
  Other                                                  24,901      29,275
    Total deferred tax liabilities                      225,899     243,318
Deferred tax assets
  Alternative minimum tax and production credit
    carryforwards                                        12,591      15,133
  Depletion and ITC carryforwards                                     3,661
  Other                                                  16,102      13,367
    Total deferred tax assets                            28,693      32,161
Less a valuation allowance                                            3,661
    Net deferred tax assets                              28,693      28,500
       Net deferred tax liabilities                    $197,206    $214,818
</TABLE>

Cash paid for income taxes was $35,036,000 in 1998, $29,653,000
in 1997 and $22,455,000 in 1996.


Note 6 - Litigation and Commitments

Universal Resources, a subsidiary of Market Resources, is a named
defendant in a class action lawsuit involving royalty payments in
Oklahoma state court.  In Bridenstine v. Kaiser-Francis Oil
Company, the plaintiffs allege fraud and contract claims and
assert damages against all defendants for a 15-year period in
excess of $35,000,000 plus punitive damages.  The plaintiffs'
primary claim alleges that a transportation fee charged against
royalty payments was improper or excessive. The claims involve
wells connected to an intrastate gathering system that Questar
Gas Management, a subsidiary of Market Resources, presently owns
and operates.  Kaiser-Francis and Universal Resources are the
major working interest owners and operators of a majority of the
wells connected to this pipeline system.

The Oklahoma Supreme Court has denied defendants' appeal from the
trial court's decision to certify the Bridenstine case as a class
action.  Universal Resources disputes these claims. Management
cannot predict the outcome of the lawsuit, but believes it will
not have a material effect on results of operations, cash flows
or the balance sheet.

Questar Pipeline and some of its affiliates have been named as
defendants in a lawsuit filed under the federal false claims act
by an individual who is engaged in natural gas production. The
case is one of 77 substantially similar cases filed
contemporaneously by this producer against pipelines and their
respective affiliates, in which the producer alleges
mismeasurement of the heat content of natural gas volumes and
understatement of the value of gas on which royalty payments are
due the federal government. The complaint also claims treble
damages and seeks imposition of civil penalties.  The producer's
complaint does not include a request for any specific monetary
damages. Management believes that the producer's allegations and
claims against the Company do not have merit.  The outcome of the
case cannot be predicted at this time.

As a result of acquiring Questar Pipeline's gas purchase
contracts in 1994, Questar Gas is responsible for any judgment
rendered against Questar Pipeline in a lawsuit that was tried
before a Wyoming federal district court jury in 1994.  The jury
awarded several million dollars to the producer from whom Questar
Pipeline purchased gas, however, in a ruling issued June 2, 1998,
the trial judge set aside all aspects of the jury's verdict,
except for $500,000 related to certain take-or-pay contract
issues.   The producer is pursuing an appeal at the U. S. Court
of Appeals for the 10th Circuit.

There are various other legal proceedings against Questar and its
subsidiaries.  While it is not currently possible to predict or
determine the outcomes of these proceedings, it is the opinion of
management that the outcomes will not have a materially adverse
effect on the Company's results of operations, financial position
or liquidity.

Each year, Questar Gas purchases significant quantities of
natural gas under numerous gas-purchase contracts with varying
terms and conditions.  Purchases under these agreements totalled
$100,058,000 in 1998, $122,106,000 in 1997 and $67,249,000 in
1996.   Historically, gas-purchase contracts extended over many
years.  Current practice, however, sets contract terms for
anywhere from one day up to one year. As of February 1, 1998,
substantially all long-term contracts had expired.

Questar Energy Trading has reserved certain volumes of pipeline
capacity for which it is obligated to pay $3 million annually for
the next eight years, whether or not it is able to market the
capacity to others.

Questar sold its headquarters building under a sale and
lease-back arrangement in 1998. The operating agreement commits
the Company to occupy the building for the next 13 years with an
option for renewal. The annual lease payment is $3.4 million for
the next five years.


Note 7 - Rate Matters

Questar Gas and Questar Pipeline last filed general rate cases in
1995.  In its 1995 rate case, Questar Gas was granted a return on
rate base between 10.22% and 10.34% in Utah and 10.54% in
Wyoming.  A rate of return on equity was not specified. Questar
Pipeline was granted an 11.75% return on equity in its last FERC
rate proceeding. Neither company currently plans to file a
general rate case in 1999.

A subsidiary of Questar Pipeline, Questar Southern Trails
Pipeline Company, filed an application with the FERC in January
1999 requesting permission to convert a 700-mile crude oil
pipeline, extending from New Mexico to Long Beach, California, to
carry natural gas.  The application also seeks authority to
install required compression equipment and to upgrade the system
to carry 120 MMdth of gas per day.

Questar Gas routinely files for adjustment of purchased-gas costs
with the PSCU and the PSCW on a semiannual basis.  Because of
lower forecasted gas prices and  the fact that prior gas cost
increases have been largely recovered, Questar Gas received
approval to reduce annual gas costs in rates by $1.1 million in
Utah and $356,000 in Wyoming effective July 1, 1998.  Also, in
January 1999, Questar Gas received approval, pending a final
order, to further reduce annual gas costs by $39.3 million in
Utah and $801,000 in Wyoming.

In an order issued December 31, 1998, the PSCU rejected the
request of the Utah Division of Public Utilities to deny Questar
Gas recovery of approximately $7.6 million in costs paid by
Questar Gas to Questar Gas Management for field gathering of
Questar Gas' system supplies.

In an order issued March 2, 1998, in FERC Docket No. IN97-1, the
FERC found that Questar Pipeline was not liable for any refunds
related to charges paid by Questar Gas to Questar Pipeline for
rendering gathering services from 1988 through 1992.  The FERC
had investigated whether Questar Pipeline may have violated a
provision of the Natural Gas Act and its tariff by charging
gathering rates higher than the rates specified in Questar
Pipeline's tariff.

In March 1998, the PSCW approved Questar Gas' gas-merchant
unbundling proposal that was offered in 1997. Under this plan, a
transportation-service option is extended to residential and
commercial customers as well as industrial customers each year.
Customers choosing transportation service are allowed to secure
gas supplies directly from producers and marketers and pay
Questar Gas a fee for transportation services. Questar Gas
continues to offer a traditional bundled service as well. In
1998, no competitors qualified under the program.  Questar
expects that the option of unbundled service in Wyoming will not
have a material effect on earnings. Questar Gas will maintain its
current structure in Utah.  As of  December 31, 1998, Questar Gas
served 21,858 customers in Wyoming, representing 3% of its total
customers.


Note 8 - Employee Benefits

Pension Plan:  The Company has a defined-benefit pension plan
covering the majority of its employees. Benefits are generally
based on the employee's age at retirement, years of service and
highest earnings in a consecutive 72 pay-period interval during
the ten years preceding retirement.  The Company's policy is to
make contributions to the plan at least sufficient to meet the
minimum funding requirements of the Internal Revenue Code.  Plan
assets consist principally of equity securities and corporate and
U.S. government debt obligations.

Eligible employees in Regulated Services were offered an
early-retirement program that was effective July 31, 1998.
Enhanced benefits were paid to 178 employees taking advantage of
the offer.   Costs associated with the early-retirement program
are being amortized over a five-year period in accordance with
anticipated regulatory treatment.

A summary of pension expense is as follows:
<TABLE>
<CAPTION>
                                                    Year Ended December 31,
                                            1998        1997        1996
                                                    (In Thousands)
<S>                                      <C>        <C>         <C>
Service cost                                 $7,746      $7,226      $7,606
Interest cost                                18,617      18,270      16,829
Expected return on plan assets              (23,016)    (20,970)    (19,059)
Prior service and other costs                   872         678         547
Amortization of early retirement costs          530         651         232
    Pension expense                          $4,749      $5,855      $6,155
</TABLE>

Assumptions used to calculate pension costs were as follows:
<TABLE>
<CAPTION>
                                         December 31,
                                            1998        1997        1996
<S>                                      <C>        <C>         <C>
    Discount rate                              6.75%       7.50%       7.00%
    Rate of increase in compensation           5.00%       5.35%       5.35%
    Long-term return on assets                 8.50%       8.50%       8.50%
</TABLE>
The status of the pension plan was as follows:

<TABLE>
<CAPTION>
Pension Plan                                            1998        1997
                                                    (In Thousands)
<S>                                                 <C>         <C>
Change in benefit obligation
Projected benefit obligation at January 1,             $269,259    $234,234
Service cost                                              7,746       7,226
Interest cost                                            18,617      18,270
Plan amendments                                           7,022
Actuarial loss                                           15,768      20,339
Benefits paid                                           (11,577)    (10,391)
Early retirement settlements                            (54,036)       (419)
Projected benefit obligation at December 31,            252,799     269,259

Change in plan assets
  Fair value of plan assets at January 1,               284,698     252,071
Actual return on plan assets                             40,347      38,217
Contributions to the plan                                 5,200       5,220
Benefits paid                                           (11,577)    (10,391)
Early retirement settlements                            (54,036)       (419)
  Fair value of plan assets at December 31,             264,632     284,698

Plan assets in excess of
projected benefit obligation                             11,833      15,439
  Unrecognized net actuarial gain                       (18,012)    (13,265)
  Unrecognized prior service cost                        11,482       5,188
  Unrecognized transition obligation                        353         497
  Prepaid pension cost recorded
     in current assets                                   $5,656      $7,859
</TABLE>

Postretirement Benefits Other Than Pensions: Generally,
postretirement health-care benefits and life insurance are
provided only to employees hired before January 1, 1997. The
Company pays a portion of the costs of health-care benefits, as
determined by an employee's years of service, and limited to 170%
of the 1992 contribution.  The Company's policy is to fund
amounts allowable for tax deduction under the Internal Revenue
Code.  Plan assets consist of equity securities and corporate and
U.S. government debt obligations. The Company is amortizing its
transition obligation over a 20-year period, which began in 1992.

Regulated Services accounts for approximately 64% of the
postretirement benefit costs.  The impact of postretirement
benefit costs on Questar's future net income will be mitigated by
recovery of these costs from customers.  The regulatory agencies
allowed Questar Gas and Questar Pipeline to recover future costs
if the amounts are funded in external trusts.

A summary of the expense of postretirement benefits other than
pensions follows:
<TABLE>
<CAPTION>
                                         Year Ended December 31,
                                            1998        1997        1996
                                         (In Thousands)
<S>                                      <C>        <C>         <C>
Service cost                                 $1,138      $1,075      $1,015
Interest cost                                 4,094       4,050       3,452
Expected return on plan assets               (1,830)     (1,647)     (1,408)
Amortization of transition obligation         1,878       1,971       1,971
Actuarial gain                                              (68)       (138)
   Postretirement benefit expense            $5,280      $5,381      $4,892
</TABLE>

Assumptions used to calculate postretirement benefit costs were
as follows:

<TABLE>
<CAPTION>
                                         December 31,
                                            1998        1997        1996
<S>                                      <C>        <C>         <C>
Discount rate                                  6.75%        7.5%        7.0%
Long-term return on assets                     8.50%        8.5%        8.5%
Health care inflation rate                    11.00%      11.50%       12.0%
                                         decreasing  decreasing  decreasing
                                         to 5.5% by to 5.5% by  to 5.5% by
                                            2010        2010        2010
</TABLE>

A 1% increase in the health care inflation rate would increase
the service cost and interest cost by $153,000 and the
accumulated postretirement benefit obligation by $2,252,000. A 1%
decrease in the health care inflation rate would decrease the
service cost and interest cost by $142,000 and the accumulated
postretirement benefit obligation by $2,101,000.

The status of the postretirement benefit programs was as follows:

Postretirement Benefits Other Than Pensions
<TABLE>
<CAPTIOP>
                                                        1998        1997
                                                    (In Thousands)
<S>                                                 <C>         <C>
Change in benefit obligation
Projected benefit obligation at January 1,              $59,743     $48,424
Service cost                                              1,138       1,075
Interest cost                                             4,094       4,050
Plan amendments                                          (1,409)
Actuarial loss                                            2,435       7,976
Benefits paid                                            (1,756)     (1,782)
Projected benefit obligation at December 31,             64,245      59,743

Change in plan assets
  Fair value of plan assets at January 1,                24,684      20,477
Actual return on plan assets                              4,161       2,919
Contributions to the plan                                 3,756       3,070
Benefits paid                                            (1,756)     (1,782)
  Fair value of plan assets at December 31,              30,845      24,684

Projected benefit obligation
       in excess of plan assets                         (33,400)    (35,059)
  Unrecognized transition obligation                     26,284      29,571
  Unrecognized net gain                                  (3,195)     (3,299)
Accrued postretirement benefit
      liability recorded in current liabilities        ($10,311)    ($8,787)
</TABLE>

Postemployment Benefits:  The Company recognizes the net present
value of the liability for postemployment benefits, such as
long-term disability benefits and health-care and life-insurance
costs, when employees become eligible for such benefits.
Postemployment benefits are paid to former employees after
employment has been terminated but before retirement benefits are
paid.  The Company accrues both current and future costs.
Questar's postemployment liability at December 31 was $2,252,000
in 1998, $2,468,000 in 1997 and $2,412,000 in 1996. The PSCU and
the PSCW have allowed Questar Gas to recover postemployment costs
of about $1.1 million, as measured at December 31, 1994, over a
10-year period. The FERC has allowed Questar Pipeline to recover
$138,000 per year in 1998, 1997 and 1996 but required that
payments be deposited in an external trust.


Note 9 - Wexpro Settlement Agreement

Wexpro's operations are subject to the terms of the Wexpro
settlement agreement.  The agreement was effective August 1,
1981, and sets forth the rights of Questar Gas' utility
operations to share in the results of Wexpro's operations.  The
agreement was approved by the PSCU and PSCW in 1981 and affirmed
by the Supreme Court of Utah in 1983.  Major provisions of the
settlement agreement are as follows:

a.  Wexpro continues to hold and operate all oil-producing
properties previously transferred from Questar Gas' nonutility
accounts. The oil production from these properties is sold at
market prices, with the revenues used to recover operating
expenses and to give Wexpro a return on its investment.  The rate
of return is adjusted annually and is currently 13.7%.  Any net
income remaining after recovery of expenses and Wexpro's return
on investment is divided between Wexpro and Questar Gas, with
Wexpro retaining 46%.

b.  Wexpro conducts developmental oil drilling on productive oil
properties and bears any costs of dry holes.  Oil discovered from
these properties is sold at market prices, with the revenues used
to recover operating expenses and to give Wexpro a return on its
investment in successful wells.  The rate of return is adjusted
annually and is currently 18.7%.  Any net income remaining after
recovery of expenses and Wexpro's return on investment is divided
between Wexpro and Questar Gas, with Wexpro retaining 46%.

c.  Amounts received by Questar Gas from the sharing of Wexpro's
oil income are used to reduce natural-gas costs to utility
customers.

d.  Wexpro conducts developmental gas drilling on productive gas
properties and bears any costs of dry holes.  Natural gas
produced from successful drilling is owned by Questar Gas. Wexpro
is reimbursed for the costs of producing the gas plus a return on
its investment in successful wells.  The return allowed Wexpro
currently is 21.7%.

e.  Wexpro operates natural-gas properties owned by Questar Gas.
Wexpro is reimbursed for its costs of operating these properties,
including a rate of return on any investment it makes.  This rate
of return is currently 13.7%.


Note 10 - Oil and Gas Producing Activities (Unaudited)

The following information discusses Questar's oil and gas producing
activities, which are located in the United States and Canada.
Separate disclosures are presented for cost-of-service and
noncost-of-service activities.

Cost-of-service properties are those for which the operations and
return on investment are governed by the Wexpro settlement agreement
(Note 9). Production from gas properties owned or operated by Wexpro
is delivered to Questar Gas at cost of service.  Production from
noncost-of-service properties is sold at market prices. These
properties include all Celsius Energy and Universal Resources
properties and Wexpro oil properties.  Production from Wexpro oil
properties is sold at market prices and the income is shared with
Questar Gas after operating costs are recovered and a specified
return on investment is earned.

Information on the results of operations and standardized measure of
future net cash flows has not been included for cost-of-service
activities because operating results and the value of the related
properties are dependent upon returns established by state
regulatory agencies based on historical costs or the terms of the
Wexpro settlement agreement.

NONCOST-OF-SERVICE ACTIVITIES

Capitalized Costs:  The aggregate amounts of costs capitalized for
noncost-of-service oil-and-gas producing activities and the related
amounts of accumulated depreciation and amortization follow:

                                December 31, 1998
                              United State   Canada      Total
                              (In Thousands)

  Proved properties              $974,768     $49,652  $1,024,420
  Unproved properties              49,724      12,763      62,487
                                1,024,492      62,415   1,086,907
  Accumulated depreciation
     and amortization             538,480      29,163     567,643
                                 $486,012     $33,252    $519,264

                                December 31, 1997
                              United State   Canada      Total
                                          (In Thousands)

  Proved properties              $805,614     $42,882    $848,496
  Unproved properties              19,200      13,390      32,590
                                  824,814      56,272     881,086
  Accumulated depreciation
     and amortization             472,773       9,643     482,416
                                 $352,041     $46,629    $398,670

                                            December 31,
                                  1996
                              United State   Canada      Total
                                          (In Thousands)

  Proved properties              $760,329     $43,721    $804,050
  Unproved properties              16,448       8,351      24,799
                                  776,777      52,072     828,849
  Accumulated depreciation
     and amortization             428,708       1,494     430,202
                                 $348,069     $50,578    $398,647

Full-Cost Amortization:  Unproved properties held by Celsius Energy
and Universal Resources are excluded from amortization until
evaluation.  A summary of costs excluded from the amortization pool
at December 31, 1998, and the year in which these costs were
incurred are listed below.   Costs excluded from amortization
include $12,763,000 associated with Canadian properties.
<TABLE>
<CAPTION>

                                                               Year Costs Incurred
                                                                               1995 and
                                 Total        1998        1997       1996       Prior
                                                      (In Thousands)
<S>                           <C>         <C>         <C>         <C>       <C>
  Leaseholds                      $49,729     $28,873      $5,747    $7,607        $7,502
  Exploration                      12,758       2,930       3,109     1,245         5,474
                                  $62,487     $31,803      $8,856    $8,852       $12,976
</TABLE>

Costs Incurred:  The following costs were incurred in
noncost-of-service oil-and gas-producing activities:

                                          Year Ended December 31,
                                  1998
                              United State   Canada      Total
                              (In Thousands)

  Property acquisition
    Unproved                      $29,367        $145     $29,512
    Proved                        126,723       3,144     129,867
  Exploration                      10,055       1,222      11,277
  Development                      45,497       5,363      50,860
                                 $211,642      $9,874    $221,516

                                          Year Ended December 31,
                                  1997
                              United State   Canada      Total
                                          (In Thousands)

  Property acquisition
    Unproved                       $4,057        $203      $4,260
    Proved                          2,155                   2,155
  Exploration                       9,975       1,198      11,173
  Development                      45,067       4,437      49,504
                                  $61,254      $5,838     $67,092

                                          Year Ended December 31,
                                  1996
                              United State   Canada      Total
                                          (In Thousands)

  Property acquisition
    Unproved                       $1,159      $8,114      $9,273
    Proved                        111,994      42,380     154,374
  Exploration                       3,639         800       4,439
  Development                      13,367         778      14,145
                                 $130,159     $52,072    $182,231

Results of Operations:  Following are the results of operations of
noncost-of-service oil- and gas-producing activities before
corporate overhead and interest expenses.  The Company recorded
write-downs of oil and gas properties in 1998 and 1997.

                              Year Ended December 31,
                                  1998
                              United State   Canada      Total
                              (In Thousands)
 Revenues
   From unaffiliated customers    $60,092     $10,384     $70,476
   From affiliates                 69,561                  69,561
     Total revenues               129,653      10,384     140,037

 Production expenses               42,739       3,004      45,743
 Oil-income sharing under Wexpro
     settlement agreement           1,053                   1,053
 Depreciation and amortization     50,628       5,275      55,903
 Write-down of oil and gas
     properties                    19,000      15,000      34,000
     Total expenses               113,420      23,279     136,699
                                   16,233     (12,895)      3,338
 Income tax expense
    (benefit) - Note 1                634      (5,300)     (4,666)
    Results of operations
    before corporate overhead
      and interest expenses       $15,599     ($7,595)     $8,004

                                          Year Ended December 31,
                                              1997
                              United State   Canada      Total
                                          (In Thousands)
 Revenues
  From unaffiliated customers     $60,650      $8,694     $69,344
  From affiliates                  76,858                  76,858
      Total revenues              137,508       8,694     146,202

 Production expenses               41,981       2,424      44,405
 Oil-income sharing under Wexpro
      settlement agreement          2,347                   2,347
 Depreciation and amortization     46,372       5,374      51,746
 Write-down of oil and gas
     properties                                 3,000       3,000
     Total expenses                90,700      10,798     101,498
                                   46,808      (2,104)     44,704
 Income tax expense
    (benefit) - Note 1             10,500      (1,729)      8,771
    Results of operations
    before corporate overhead
     and interest expenses        $36,308       ($375)    $35,933

                              Year Ended December 31,
                                  1996
                              United State   Canada      Total
                                          (In Thousands)
 Revenues
   From unaffiliated customers    $77,235      $3,233     $80,468
   From affiliates                 30,814                  30,814
     Total revenues               108,049       3,233     111,282

 Production expenses               33,824         750      34,574
 Oil-income sharing under Wexpro
     settlement agreement           2,768                   2,768
 Depreciation and amortization     40,655       1,526      42,181
      Total expenses               77,247       2,276      79,523
                                   30,802         957      31,759
 Income tax expense
    (benefit) - Note 1              5,349         186       5,535
    Results of operations before
    corporate overhead and
       interest expenses          $25,453        $771     $26,224

Note 1 - Income tax expense has been reduced by gas production tax
credits of $5,736,000 in 1998, $6,633,000 in 1997 and $6,245,000 in
1996.

Estimated Quantities of Proved Oil and Gas Reserves for
Noncost-of-Service Properties:  The majority of the reserve
estimates located in the United States were made by Ryder Scott
Company, H. J. Gruy and Associates and Netherland, Sewell &
Associates, independent reservoir engineers, and the remainder by
the Company's reservoir engineers.  Estimated Canadian reserves were
prepared by Gilbert Laustsen Jung Associates Ltd.  Reserve estimates
are based on a complex and highly interpretive process that is
subject to continuous revision as additional production and
development-drilling information becomes available. The quantities
reported below are based on existing economic and operating
conditions using current prices and operating costs.  All oil and
gas reserves reported were located in the United States and Canada.
The Company does not have any long-term supply contracts with
foreign governments or reserves of equity investees.
<TABLE>
<CAPTION>

                                          Natural Gas                Oil
                                 United                             United
                                 States      Canada      Total      States      Canada       Total
                              (In Million Cubic Feet)             (In Thousands of Barrels )
<S>                           <C>         <C>         <C>         <C>       <C>           <C>
Proved Reserves
 Balance at January 1, 1996      258,687                 258,687    12,444                    12,444
  Revisions of estimates          19,219       3,354      22,573     1,286          (774)        512
  Extensions and discoveries       8,331       2,534      10,865       540            84         624
  Purchase of reserves in place  116,855      19,600     136,455     6,816         2,920       9,736
  Sale of reserves in place       (4,014)                 (4,014)      (30)                      (30)
  Production                      (39,506)     (1,013)    (40,519)   (2,399)         (103)     (2,502)
 Balance at December 31, 1996     359,572      24,475     384,047    18,657         2,127      20,784
  Revisions of estimates           11,409      (4,635)      6,774    (1,847)         (316)     (2,163)
  Extensions and discoveries       24,353       4,366      28,719     1,060           898       1,958
  Purchase of reserves in place     8,166                   8,166       351                       351
  Sale of reserves in place        (1,292)                 (1,292)     (450)           (3)       (453)
  Production                      (44,370)     (3,072)    (47,442)   (2,667)         (271)     (2,938)  
 Balance at December 31, 1997     357,838      21,134     378,972    15,104         2,435      17,539
  Revisions of estimates              334      (3,568)     (3,234)   (3,199)          238      (2,961)
  Extensions and discoveries       28,688       1,984      30,672       730           261         991
  Purchase of reserves in place   129,207       5,110     134,317     3,720            71       3,791
  Sale of reserves in place          (440)                   (440)      (76)                      (76)
  Production                      (48,584)     (2,725)    (51,309)   (2,490)         (404)     (2,894)
  Balance at December 31, 1998    467,043      21,935     488,978    13,789         2,601      16,390

Proved Developed Reserves
 Balance at January 1, 1996       245,357                 245,357    11,756                    11,756
 Balance at December 31, 1996     299,219      14,683     313,902    16,686         1,880      18,566
 Balance at December 31, 1997     300,859      16,670     317,529    13,209         1,851      15,060
 Balance at December 31, 19 98    412,181      17,835     430,016    12,583         2,281      14,864
</TABLE>

Standardized Measure of Future Net Cash Flows Relating to Proved
Reserves for Noncost-of-Service Activities:  Future net cash flows
were calculated at December 31 using year-end prices and known
contract-price changes.  Year-end production, development costs and
income tax rates were used to compute the future net cash flows.
All cash flows were discounted at 10% to reflect the time value of
cash flows, without regard to the risk of specific properties.

The assumptions used to derive the standardized measure of future
net cash flows are those required by accounting standards and do not
necessarily reflect the Company's expectations.  The usefulness of
the standardized measure of future net cash flows is impaired
because of the reliance on reserve estimates and production
schedules that are inherently imprecise, and because the costs of
oil-income sharing under the Wexpro settlement agreement were not
included.

                                          Year Ended December 31,
                                              1998
                              United State   Canada      Total
                                          (In Thousands)

Future cash inflows            $1,012,259     $66,873  $1,079,132
Future production and
  development costs              (374,046)    (22,784)   (396,830)
Future income tax expenses        (81,076)                (81,076)
Future net cash flows             557,137      44,089     601,226
 10% annual discount for estimated
  timing of net cash flows       (220,117)    (14,809)   (234,926)
Standardized measure of discounted
  future net cash flows          $337,020     $29,280    $366,300

                                          Year Ended December 31,
                                              1997
                              United State   Canada      Total
                                          (In Thousands)

Future cash inflows              $937,059     $68,550  $1,005,609
Future production and
  development costs              (349,624)    (25,066)   (374,690)
Future income tax expenses        (99,107)                (99,107)
Future net cash flows             488,328      43,484     531,812
 10% annual discount for estimated
  timing of net cash flows       (198,070)    (14,885)   (212,955)
Standardized measure of discounted
  future net cash flows          $290,258     $28,599    $318,857

                                          Year Ended December 31,
                                              1996
                              United State   Canada      Total


Future cash inflows            $1,259,525    $123,186  $1,382,711
Future production and
  development costs              (443,074)    (37,445)   (480,519)
Future income tax expenses       (187,263)    (15,857)   (203,120)
Future net cash flows             629,188      69,884     699,072
 10% annual discount for estimated
  timing of net cash flows       (259,602)    (23,188)   (282,790)
Standardized measure of discounted
  future net cash flows          $369,586     $46,696    $416,282

The principal sources of change in the standardized measure of
discounted future net cash flows were:

                                     Year Ended December 31,
                                  1998        1997        1996
                                          (In Thousands)

Beginning balance                 $318,857    $416,282    $222,082
  Sales of oil and gas produced,
      net of production costs     (94,294)   (101,797)    (76,708)
 Net changes in prices and
      production costs            (61,660)   (138,678)    168,288
 Extensions and discoveries,
     less related costs            25,787      31,535      16,400
 Revisions of quantity estimates  (14,805)     (4,979)     25,298
 Purchase of reserves in place    129,867       2,155     154,374
 Sale of reserves in place          (540)     (3,606)     (3,045)
 Accretion of discount             31,886      41,629      22,208
 Net change in income taxes        15,727      73,804     (79,386)
 Change in production rate          7,314       5,025     (19,738)
 Other                              8,161      (2,513)    (13,491)
    Net change                     47,443     (97,425)    194,200
Ending balance                   $366,300    $318,857    $416,282

COST-OF-SERVICE ACTIVITIES

Capitalized Costs:  Capitalized costs for cost-of-service oil- and
gas-producing activities net of the related accumulated depreciation
and amortization were as follows:

                                          December 31,
                                  1998        1997        1996
                                          (In Thousands)

  Questar Gas                     $27,739     $32,399     $34,334
  Wexpro                          104,492      87,927      81,229
                                 $132,231    $120,326    $115,563

Costs Incurred:  Costs incurred by Wexpro for cost-of-service
gas-producing activities were $24,549,000 in 1998, $10,281,000 in
1997 and $3,931,000 in 1996.

Estimated Quantities of Proved Oil and Gas Reserves for
Cost-of-Service Properties:  The following estimates were made by
the Company's reservoir engineers.  No estimates are available for
cost-of-service proved undeveloped reserves that may exist.

                              Natural Gas     Oil
                              (In Million (In Thousands
                              Cubic Feet) of Barrels)
Proved Developed Reserves
  Balance at January 1, 1996      389,440         662
    Revisions of estimates          4,365         (44)
    Extensions and discoveries      2,812           2
    Production                    (36,740)        (56)
  Balance at December 31, 1996    359,877         564
    Revisions of estimates          7,008          41
    Extensions and discoveries      7,439          28
    Production                    (37,454)        (24)
  Balance at December 31, 1997    336,870         609
    Revisions of estimates         15,061         (12)
    Extensions and discoveries     24,987          45
    Production                    (37,138)        (59)
  Balance at December 31, 1998    339,780         583

Note 11 - Quarterly Financial and Stock Price Data (Unaudited)
Following is a summary of quarterly financial and stock price data.
<TABLE>
<CAPTION>
                                               First       Second      Third      Fourth
                                              Quarter     Quarter     Quarter    Quarter      Year
                                                                    (Dollars In Thousands, Except Per Share Amounts)
<S>                                         <C>         <C>         <C>         <C>       <C>
                    1998
Revenues                                       $300,083    $179,157    $150,282  $276,734    $906,256
Operating income                                 67,056      25,084      18,173    22,468     132,781
Net income                                       40,882      16,196       8,235    11,586      76,899
Basic earnings per common share                    0.50        0.19        0.10      0.14        0.93
Diluted earnings per common share                  0.49        0.19        0.10      0.14        0.93
Dividends per common share                       0.1575       0.165       0.165     0.165      0.6525
Market price per common share
  High                                          22  9/32    22  3/8     19 13/16    20 3/8      22 3/8
  Low                                           20  3/16    18 11/16    15 13/16    17 3/8    15  3/16
  Close                                       $ 20 25/32   $19  5/8    $19  1/4  $19  3/8    $19  3/8
Price-earnings ratio on closing price              16.4        15.1        15.9      20.8         20.8
Annualized dividend yield on closing price          3.2%        3.4%        3.4%      3.4%        3.4%
Market-to-book ratio on closing price              1.94        1.84        1.82      1.82         1.82
Average number of common shares
  traded per day                                    171         165         169       188         173

                    1997
Revenues                                       $358,378    $151,453    $138,632  $287,874    $936,337
Operating income                                 71,922      23,448      20,342    54,443     170,155
Net income                                       40,974      13,607      15,726    34,488     104,795
Basic and diluted earnings per common share        0.50        0.16        0.19      0.42        1.27
Dividends per common share                       0.1525      0.1525      0.1575    0.1575        0.62
Market price per common share
  High                                            20 1/4      21 1/2    21  7/16    22 3/8      22 3/8
  Low                                           17 13/16      17 1/8    19  3/16    18 3/8      17 1/8
  Close                                          $18        $20 3/16    $20 9/32 $22  5/16   $22  5/16
Price-earnings ratio on closing price              14.2        16.3        16.0      17.5         17.5
Annualized dividend yield on closing price          3.4%        3.0%        3.1%      2.8%        2.8%
Market-to-book ratio on closing price              1.84        2.05        2.01      2.17         2.17
Average number of common shares
  traded per day                                    124         182         172       148         157

                    1996
Revenues                                       $225,723    $148,968    $156,469  $286,821    $817,981
Operating income                                 61,061      25,169      23,268    62,125     171,623
Net income                                       34,596      16,068      12,787    34,694      98,145
Basic earnings per common share                    0.42        0.20        0.15      0.43        1.20
Diluted earnings per common share                  0.42        0.19        0.15      0.42        1.19
Dividends per common share                       0.1475      0.1475      0.1475    0.1525       0.595
Market price per common share
  High                                            17 1/4      17 5/8    18 11/16  20 11/16    20 11/16
  Low                                           15  7/16      15 3/4    15 11/16    17 1/8    15  7/16
  Close                                          $16 1/2     $17       $17 11/16   $18 3/8     $18 3/8
Price-earnings ratio on closing price              14.9        15.0        15.5      15.4         15.4
Annualized dividend yield on closing price          3.6%        3.5%        3.3%      3.3%        3.3%
Market-to-book ratio on closing price              1.80        1.85        1.90      1.94         1.94
Average number of common shares
  traded per day                                    142         104         156       139         135
</TABLE>


Note 12 - Operations by Line of Business
Following is a summary of operations by line of business for the
Year Ended December 31. This summary has been restated from
previous years to include another line for Market Resources.
<TABLE>
<CAPTION>
                                                           Regulated Services
                                        Natural   Natural    Other   Corporate   Interco.  Questar
                                Market    Gas       Gas                & Other    Trans-   Consol-
                             Resources   Dist.     Trans.            Operations  actions    idated
                               (In Thousands)
<S>                         <C>        <C>       <C>       <C>       <C>        <C>       <C>
        1998
Revenues
  From unaffiliated customers $382,791  $475,754   $37,156    $2,355     $8,200            $906,256
  From affiliated companies     77,323     1,069    71,401        99     39,707 $(189,599)
                               460,114   476,823   108,557     2,454     47,907  (189,599)  906,256
Operating expenses
  Natural gas and other
    product purchases          232,135   281,004                                 (147,971)  365,168
  Operating and maintenance     75,032    96,923    38,832     3,518     38,628   (40,575)  212,358
  Depreciation and
    amortization                71,377    33,261    13,927        17      6,575             125,157
  Write-down of oil and
    gas properties              34,000                                                       34,000
  Other expenses                26,041     8,185     2,600                1,019    (1,053)   36,792
    Total operating expenses   438,585   419,373    55,359     3,535     46,222  (189,599)  773,475
    Operating income (loss)     21,529    57,450    53,198    (1,081)     1,685             132,781
Interest and other income        3,638     3,566        78       655     22,756   (12,491)   18,202
Income (loss) from
   unconsolidated affiliates      (930)              4,011                 (164)              2,917
Debt expense                   (12,631)  (19,792)  (14,456)     (385)   (13,198)   12,491   (47,971)
Income tax (expense) credit      2,131   (13,816)  (14,940)      339     (2,744)            (29,030)
    Net income (loss)          $13,737   $27,408   $27,891     ($472)    $8,335             $76,899
Identifiable assets           $778,694  $699,727  $556,226    $8,519   $118,115          $2,161,281
Investment in unconsolidated
    affiliates                   3,673              54,712                  253             $58,638
Capital expenditures           254,546    76,328   114,318       493     15,662            $461,347

        1997
Revenues
  From unaffiliated customers $451,233  $445,684   $36,343      $595     $2,482            $936,337
  From affiliated companies     74,584     2,539    69,094       135     36,453 $(182,805)        -
                               525,817   448,223   105,437       730     38,935  (182,805)  936,337
Operating expenses
  Natural gas and other
    product purchases          293,174   248,933                                 (142,166)  399,941
  Operating and maintenance     72,712   101,719    37,334     2,359     29,002   (38,292)  204,834
  Depreciation and
    amortization                67,078    31,160    14,797         9      4,993             118,037
  Write-down of oil and gas
    properties                   6,000                                                        6,000
  Other expenses                27,916     8,174     2,816                  811    (2,347)   37,370
    Total operating expenses   466,880   389,986    54,947     2,368     34,806  (182,805)  766,182
    Operating income (loss)     58,937    58,237    50,490    (1,638)     4,129             170,155
Interest and other income        5,854     3,388     1,323       314     19,488   (10,700)   19,667
Income (loss) from
    unconsolidated affiliate      (288)              4,629                                    4,341
Debt expense                   (10,882)  (19,119)  (13,536)     (186)   (10,743)   10,700   (43,766)
Income tax (expense) credit    (11,522)  (13,492)  (16,338)      567     (4,817)            (45,602)
    Net income (loss)          $42,099   $29,014   $26,568     ($943)    $8,057            $104,795
Identifiable assets           $648,170  $601,720  $410,481    $2,610   $282,036          $1,945,017
Investment in unconsolidated
    affiliates                   2,508              26,977                  467              29,952
Capital expenditures            92,310    65,375    32,596        77     22,439             212,797

    1996
Revenues
  From unaffiliated customers $408,202  $368,905   $38,837        $3     $2,034            $817,981
  From affiliated companies     75,878     3,023    65,341               29,723 $(173,965)
                               484,080   371,928   104,178         3     31,757  (173,965)  817,981
Operating expenses
  Natural gas and other
      product purchases        272,610   182,400                                 (140,739)  314,271
  Operating and maintenance     66,301    97,110    39,959       514     22,963   (30,458)  196,389
  Depreciation and
    amortization                58,679    28,309    14,206         2      4,013             105,209
  Other expenses                21,802     8,071     2,519                  865    (2,768)   30,489
    Total operating expenses   419,392   315,890    56,684       516     27,841  (173,965)  646,358
    Operating income (loss)     64,688    56,038    47,494      (513)     3,916             171,623
Interest and other income         (600)    3,033     1,798               15,447    (7,638)   12,040
Income from
    unconsolidated affiliate       745                 182                                      927
Debt expense                    (8,699)  (16,637)  (13,416)       (6)    (9,963)    7,638   (41,083)
Income tax (expense) credit    (13,687)  (13,446)  (13,415)      197     (5,011)            (45,362)
    Net income (loss)          $42,447   $28,988   $22,643     ($322)    $4,389             $98,145
Identifiable assets           $667,949  $554,476  $396,019      $272   $197,509          $1,816,225
Investment in unconsolidated
    affiliates                  $4,378    14,347                            467              19,192
Capital expenditures           191,788    51,657    23,808         4     24,578             291,835
</TABLE>

Market Resources revenues and operating expenses in 1997 have
been increased by $3,063,000 to conform with the 1998
presentations.
<PAGE>

                           SIGNATURES

     Pursuant to the requirements of Section 13 or 15(d) of the 
Securities Exchange Act of 1934, the registrant has duly caused this 
report to be signed on its behalf by the undersigned, thereunto duly 
authorized, on the 25th day of March, 1999.

                              QUESTAR CORPORATION
                                 (Registrant)


                              By /s/ R. D. Cash
                                  R. D. Cash
                                  Chairman, President and Chief 
                                  Executive Officer

     Pursuant to the requirements of the Securities Exchange Act of 
1934, this report has been signed below by the following persons on 
behalf of the registrant and in the capacities and on the date 
indicated.


  /s/ R. D. Cash              Chairman, President and Chief 
 R. D. Cash                   Executive Officer (Principal 
                              Executive Officer)


  /s/ S. E. Parks             Vice President, Treasurer and Chief 
 S. E. Parks                  Financial Officer (Principal Financial 
                              and Accounting Officer)

*R. D. Cash                   Director
*Patrick J. Early             Director
*U. Edwin Garrison            Director
*W. W. Hawkins                Director
*Robert E. Kadlec             Director
*Marilyn S. Kite              Director
*Dixie L. Leavitt             Director
*Gary G. Michael              Director
*G. L. Nordloh                Director
*Scott S. Parker              Director
*D. N. Rose                   Director
*Harris H. Simmons            Director



March 25, 1999                *By /s/ R. D. Cash
      Date                         R. D. Cash, Attorney in Fact


                           EXHIBIT INDEX

Exhibit
Number    Exhibit

 2.*      Plan and Agreement of Merger dated as of December 16, 1986, 
          by and among the Company, Questar Systems Corporation, and 
          Questar E&P Corporation.  (Exhibit No. (2) to Current Report 
          on Form 8-K dated December 16, 1986.)

 3.1.*    Restated Articles of Incorporation as amended effective May 
          19, 1998.  (Exhibit No. 3.1. to Form 10-Q Report for Quarter 
          ended June 30, 1998.)

 3.2.*    Bylaws (as amended effective August 11, 1998).  (Exhibit No. 
          3.2. to Form 10-Q Report for Quarter ended June 30, 1998.)

 4.3.*1   Rights Agreement dated as of February 13, 1996, between the 
          Company and Chemical Mellon Shareholder Services L.L.C. 
          pertaining to the Company's Shareholder Rights Plan.  
          (Exhibit No. 4. to Current Report on Form 8-K dated February 
          13, 1996.)

 10.1.*   Stipulation and Agreement, dated October 14, 1981, executed 
          by Mountain Fuel; Wexpro; the Utah Department of Business 
          Regulations, Division of Public Utilities; the Utah 
          Committee of Consumer Services; and the staff of the Public 
          Service Commission of Wyoming.  (Exhibit No. 10(a) to 
          Mountain Fuel Supply Company's Form 10-K Annual Report for 
          1981.)

 10.2.*2  Questar Corporation Annual Management Incentive Plan, as 
          amended and restated effective May 19, 1998.  (Exhibit No. 
          10.1. to Form 10-Q Report Quarter ended June 30, 1998.)

 10.3.*2  Questar Corporation Executive Incentive Retirement Plan, as 
          amended and restated effective May 19, 1998.  (Exhibit No. 
          10.2. to Form 10-Q Report for Quarter Ended June 30, 1998.)

 10.4.*2  Questar Corporation Long-Term Stock Incentive Plan, as 
          amended and restated effective February 10, 1998.  (Exhibit 
          No. 10.4. to Form 10-K Annual Report for 1997.)

 10.5.*2  Questar Corporation Executive Severance Compensation Plan, 
          as amended and restated effective May 19, 1998.  (Exhibit 
          No. 10.3. to Form 10-Q Report for Quarter Ended June 30, 
          1998.)

 10.6.*2  Questar Corporation Deferred Compensation Plan for 
          Directors, as amended and restated effective May 19, 1998.  
          (Exhibit No. 10.5. to Form 10-Q Report for Quarter Ended 
          June 30, 1998.)

 10.7.*2  Questar Corporation Supplemental Executive Retirement Plan, 
          as amended and restated effective June 1, 1998.  (Exhibit 
          No. 10.6. to Form 10-Q Report for Quarter Ended June 30, 
          1998.)

 10.8.*2  Questar Corporation Stock Option Plan for Directors, as 
          amended and restated effective October 29, 1998.  (Exhibit 
          No. 10.10. to Form 10-Q Report for Quarter Ended September 
          30, 1998.)

 10.9.*2  Form of Individual Indemnification Agreement dated February 
          9, 1993 between Questar Corporation and Directors.  (Exhibit 
          No. 10.11. to Form 10-K Annual Report for 1992.)

 10.10.*2 Questar Corporation Deferred Share Plan, as amended and 
          restated effective May 19, 1998.  (Exhibit No. 10.7. to Form 
          10-Q Report for Quarter Ended June 30, 1998.)

 10.11.*2 Questar Corporation Deferred Compensation Plan, as amended 
          and restated effective May 19, 1998.  (Exhibit No. 10.10. to 
          Form 10-Q Report for Quarter Ended June 30, 1998.)

 10.12.*  Agreement and Plan of Reorganization dated April 29, 1994, 
          by and between Nextel Communications, Inc.; Questar 
          Corporation; Advance MobilComm, Inc.; Robert C. Mearns and 
          Francis G. Fuson.  (Exhibit No. 10.14. to Form 10-Q Report 
          for Quarter ended June 30, 1994.)

 10.13.*2 Questar Corporation Directors' Stock Plan as approved May 
          21, 1996.  (Exhibit No. 10.15. to Form 10-Q Report for 
          Quarter ended June 30, 1996.)

 10.14.*2 Questar Corporation Deferred Share Make-Up Plan.  (Exhibit 
          No. 10.8. to Form 10-Q Report for Quarter Ended June 30, 
          1998.)

 10.15.*2 Questar Corporation Special Situation Retirement Plan.  
          (Exhibit No. 10.10. to Form 10-Q Report for Quarter Ended 
          June 30, 1998.)

 21.      Subsidiary Information.

 23.      Consent of Independent Auditors.

 24.      Power of Attorney.

 27.      Financial Data Schedule.  

 99.1.    Undertakings for Registration Statements on Form S-3 (No. 
          33-48168) and on Form S-8 (Nos. 33-4436, 33-15149, 33-40800, 
          33-40801, 33-48169, 333-04913, and 333-04951).
________________________

     *Exhibits so marked have been filed with the Securities and 
Exchange Commission as part of the indicated filing and are 
incorporated herein by reference.

     1The name of the Rights Agent has been changed to ChaseMellon 
Shareholder Services, L.L.C.

     2Exhibit so marked is management contract or compensation plan or 
arrangement.

     (b)  The Company did not file any Current Reports on Form 8-K 
during the last quarter of 1998.

                      SUBSIDIARY INFORMATION


     Registrant Questar Corporation has the following subsidiaries:  
Questar Regulated Services Company, Questar Market Resources, Inc., 
Questar InfoComm, Inc., Interstate Land Corporation, and Questar 
Employee Services, Inc.  Each of these companies is a Utah 
corporation.

     Questar Market Resources, Inc., has the following subsidiaries:  
Wexpro Company, Celsius Energy Company, Questar Exploration and 
Production Company, and Questar Energy Trading Company.  Celsius 
Energy is a Nevada corporation and Questar Exploration and Production 
is a Texas corporation.  The other listed companies are incorporated 
in Utah.

     Celsius Energy has a wholly owned subsidiary, Celsius Energy 
Resources, Ltd., which is an Alberta corporation.

     Questar Exploration and Production has three active subsidiaries:  
URC Canyon Creek Compression Company, Questar WMC Corporation, and 
Questar URC Company.  The first two entities are Utah corporations; 
the third entity is a Delaware corporation.  Questar Exploration and 
Production also does business under the names Universal Resources 
Corporation, Questar Energy Company and URC Corporation.

     Questar Regulated Services has three subsidiaries, all of which 
are Utah corporations:  Questar Gas Company, Questar Pipeline Company, 
and Questar Energy Services, Inc.  Questar Pipeline, in turn, has four 
wholly owned subsidiaries:  Questar TransColorado, Inc., Questar Line 
90 Company, Questar Southern Trails Company, and Questar 
Transportation Services Company, which are all Utah corporations.  
  

                                                      Exhibit 23.



                  Consent of Independent Auditors


We consent to the incorporation by reference in the Registration 
Statement (Form S-8, No. 33-15149, Post-effective Amendment No. 3 to 
No. 33-4436, No. 33-40800, No. 33-40801, and No. 33-48169; Form S-8, 
No. 333-04951; and Form S-8, No. 333-04913) and the Registration 
Statement (Form S-3, No. 33-48168) of Questar Corporation and in the 
related Prospectus of our report dated February 8, 1999, with respect 
to the consolidated financial statements of Questar Corporation 
included in this Annual Report (Form 10-K) for the year ended December 
31, 1998.



Salt Lake City, Utah
March 24, 1999


                      POWER OF ATTORNEY


     We, the undersigned directors of Questar Corporation, hereby 
severally constitute R. D. Cash and S. E. Parks, and each of them 
acting alone, our true and lawful attorneys, with full power to them 
and each of them to sign for us, and in our names in the capacities 
indicated below, the Annual Report on Form 10-K for 1998 and any and 
all amendments to be filed with the Securities and Exchange Commission 
by Questar Corporation, hereby ratifying and confirming our signatures 
as they may be signed by the attorneys appointed herein to the Annual 
Report on Form 10-K for 1998 and any and all amendments to such 
Report.  

     Witness our hands on the respective dates set forth below.  

     Signature                      Title             Date

 /s/ R. D. Cash            Chairman of the Board,     2-9-99 
 R. D. Cash                   President & Chief
                              Executive Officer

 /s/ Patrick J. Early             Director           2-9-99  
 Patrick J. Early


 /s/ U. Edwin Garrison            Director            2-9-99 
 U. Edwin Garrison


 /s/ W. Whitley Hawkins           Director            2-9-99 
 W. Whitley Hawkins


 /s/ R. E. Kadlec                 Director            2-9-99 
 R. E. Kadlec


 /s/ Marilyn S. Kite              Director            2-9-99 
 Marilyn S. Kite


 /s/ Dixie L. Leavitt             Director            2-9-99 
 Dixie L. Leavitt


 /s/ Gary G. Michael              Director            2-9-99
 Gary G. Michael


 /s/ Gary L. Nordloh              Director            2-9-99 
 Gary L. Nordloh


 /s/ Scott S. Parker              Director            2-9-99 
 Scott S. Parker


 /s/ D. N. Rose                   Director            2-9-99 
 D. N. Rose


 /s/ Harris H. Simmons            Director            2-9-99 
 Harris H. Simmons




<TABLE> <S> <C>

<ARTICLE> 5
<LEGEND>
The following schedule contains summarized financial information extracted
from the Questar Corporation Consolidated Statements of Income and Balance
Sheet for the period ended December 31, 1998, and is qualified in its
entirety by reference to such audited financial statements.
</LEGEND>
<RESTATED> 
<MULTIPLIER> 1,000
       
<S>                             <C>                     <C>
<PERIOD-TYPE>                   12-MOS                   12-MOS
<FISCAL-YEAR-END>                          DEC-31-1998             DEC-31-1997
<PERIOD-END>                               DEC-31-1998             DEC-31-1997
<CASH>                                          17,489                  17,271
<SECURITIES>                                         0                       0
<RECEIVABLES>                                  177,630                 187,014
<ALLOWANCES>                                         0                       0
<INVENTORY>                                     37,817                  29,068
<CURRENT-ASSETS>                               246,867                 285,024
<PP&E>                                       3,104,522               2,741,937
<DEPRECIATION>                               1,747,641               1,531,220
<TOTAL-ASSETS>                               2,161,281               1,945,017
<CURRENT-LIABILITIES>                          436,862                 306,212
<BONDS>                                        615,770                 541,986
                                0                       0
                                          0                       0
<COMMON>                                       298,888                 291,322
<OTHER-SE>                                     579,070                 554,456
<TOTAL-LIABILITY-AND-EQUITY>                 2,161,281               1,945,017
<SALES>                                              0                       0
<TOTAL-REVENUES>                               906,256                 936,337
<CGS>                                                0                       0
<TOTAL-COSTS>                                  577,526                 604,775
<OTHER-EXPENSES>                               195,949                 161,407
<LOSS-PROVISION>                                     0                       0
<INTEREST-EXPENSE>                              47,971                  43,766
<INCOME-PRETAX>                                105,929                 150,397
<INCOME-TAX>                                    29,030                  45,602
<INCOME-CONTINUING>                             76,899                 104,795
<DISCONTINUED>                                       0                       0
<EXTRAORDINARY>                                      0                       0
<CHANGES>                                            0                       0
<NET-INCOME>                                    76,899                 104,795
<EPS-PRIMARY>                                      .93                    1.27
<EPS-DILUTED>                                      .93                    1.27
        

</TABLE>

         TO BE INCORPORATED BY REFERENCE INTO REGISTRATION
           STATEMENTS ON FORM S-3 (NO. 33-48168) AND ON
      FORM S-8 (NOS. 33-4436, 33-15149, 33-40800, 33-40801, 
                33-48169, 333-04913, and 333-04951)

                           UNDERTAKINGS

     (a)  Rule 415 Offering.

     The undersigned registrant hereby undertakes:

          (l)  To file, during any period in which offers or sales are 
     being made, a post-effective amendment to this registration 
     statement;

               (i)  To include any prospectus required by Section 
          10(a)(3) of the Securities Act of 1933;

               (ii) To reflect in the prospectus any facts or events 
          arising after the effective date of the registration 
          statement (or the most recent post-effective amendment 
          thereof) that, individually or in the aggregate, represents 
          a fundamental change in the information set forth in the 
          registration statement.  Notwithstanding the foregoing, any 
          increase or decrease in volume of securities offered (if the 
          total dollar value of securities offered would not exceed 
          that which was registered) and any deviation from the low or 
          high end of the estimated maximum offering range may be 
          reflected on the form of prospectus filed by the Commission 
          pursuant to Rule 424(b) if, in the aggregate, the changes in 
          volume and price represent no more than a 20% change in the 
          maximum aggregate offering price set forth in the 
          "calculation of Registration Fee" table in the effective 
          registration statement;

               (iii) To include any material information with respect 
          to the plan of distribution not previously disclosed in the 
          registration statement or any material change to such 
          information in the registration statement;

     Provided, however, that paragraphs (a)(1)(i) and (a)(1)(ii) do 
not apply if the registration statement is on Form S-3 or Form S-8 and 
the information required to be included in a post-effective amendment 
by those paragraphs is contained in periodic reports filed by the 
registrant pursuant to Section 13 or Section 15(d) of the Securities 
Exchange Act of 1934 that are incorporated by reference in the 
registration statement.

          (2)  That, for the purpose of determining any liability 
     under the Securities Act of 1933, each such post-effective 
     amendment shall be deemed to be a new registration statement 
     relating to the securities offered therein, and the offering of 
     such securities at that time shall be deemed to be the initial 
     bona fide offering thereof.

          (3)  To remove from registration by means of a 
     post-effective amendment any of the securities being registered 
     that remain unsold at the termination of the offering.

     (b)  Incorporation of Documents by Reference.

     The undersigned registrant hereby undertakes that, for purposes 
of determining any liability under the Securities Act of 1933, each 
filing of the registrant's annual report pursuant to Section 13(a) or 
Section 15(d) of the Securities Exchange Act of 1934 (and, where 
applicable, each filing of an employee benefit plan's annual report 
pursuant to Section 15(d) of the Securities Exchange Act of 1934) that 
is incorporated by reference in the registration statement shall be 
deemed to be a new registration statement relating to the securities 
offered therein, and the offering of such securities at that time 
shall be deemed to be the initial bona fide offering thereof.

     (e)  Incorporated Annual and Quarterly Reports.

     The undersigned registrant hereby undertakes to deliver or cause 
to be delivered with the prospectus, to each person to whom the 
prospectus is sent or given, the latest annual report to security 
holders that is incorporated by reference in the prospectus and 
furnished pursuant to and meeting the requirements of Rule 14a-3 or 
Rule 14c-3 under the Securities Exchange Act of 1934; and where 
interim financial information required to be presented by Article 3 of 
Regulation S-X are not set forth in the prospectus, to deliver or 
cause to be delivered to each person to whom the prospectus is sent or 
given, the latest quarterly report that is specifically incorporated 
by reference in the prospectus to provide such interim financial 
information.

     (h)  Registration Statements on Form S-8.

     Insofar as indemnification for liabilities arising under the 
Securities Act of 1933 may be permitted to directors, officers and 
controlling persons of the registrant, the registrant has been advised 
that in the opinion of the Securities and Exchange Commission such 
indemnification is against public policy as expressed in the Act and 
is, therefore, unenforceable.  In the event that a claim for 
indemnification against such liabilities (other than the payment by 
the registrant of expenses incurred or paid by a director, officer or 
controlling person of the registrant in the successful defense of any 
action, suit or proceeding) is asserted by such director, officer or 
controlling person in connection with the securities being registered, 
the registrant will, unless in the opinion of its counsel the matter 
has been settled by controlling precedent, submit to a court of 
appropriate jurisdiction the question whether such indemnification by 
it is against public policy as expressed in the Act and will be 
governed by the final adjudication of such issue.



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