SECURITIES AND EXCHANGE COMMISSION
                           Washington, D.C.  20549

                                  FORM 10-Q

(Mark One)

x     QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE
      SECURITIES EXCHANGE ACT OF 1934 FOR THE QUARTERLY PERIOD ENDED
      MARCH 31, 2000
                                      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. 0-14147

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

 STATE OF UTAH                                                87-0307414
(State or other jurisdiction of                            (I.R.S. Employer
 incorporation or organization)                           Identification No.)


P.O. Box 45360, 180 East 100 South, Salt Lake City, Utah        84145-0360
(Address of principal executive offices)                        (Zip Code)

Registrant's telephone number, including area code:         (801) 324-2400

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 the number of shares outstanding of each of the issuer's
classes of common stock, as of the latest practicable date.

   Class                                  Outstanding as of April 30, 2000
Common Stock, $1.00 par value                     6,550,843 shares

Registrant meets the conditions set forth in General Instruction
H(a)(1) and (b) of Form 10-Q and is filing this Form 10-Q with the reduced
disclosure format.

PART I  FINANCIAL INFORMATION
Item 1.  Financial Statements

QUESTAR PIPELINE COMPANY AND SUBSIDIARIES
CONSOLIDATED STATEMENTS OF INCOME
(Unaudited)
<TABLE>
<CAPTION>
                                      3 Months Ended              12 Months Ended
                                        March 31,                    March 31,
                                           2000          1999          2000           1999
                                      (In Thousands)
<S>                                   <C>           <C>           <C>            <C>
REVENUES                               $     29,858  $     27,166  $     114,852  $    108,474

OPERATING EXPENSES
  Operating and maintenance                   9,965         9,389         39,110        38,294
  Depreciation                                4,180         3,976         16,947        14,060
  Other taxes                                   678           737          2,429         2,664

    TOTAL OPERATING EXPENSES                 14,823        14,102         58,486        55,018

    OPERATING INCOME                         15,035        13,064         56,366        53,456

INTEREST AND OTHER
    INCOME                                      880           809          4,300           973

OPERATIONS OF UNCONSOLIDATED
    AFFILIATES
  Income (loss)                                 220         1,491         (6,380)        5,095
  Write-down of investment
    in partnership                                                       (49,700)
                                                220         1,491        (56,080)        5,095

DEBT EXPENSE                                 (4,699)       (4,177)       (17,988)      (15,199)

    INCOME (LOSS) BEFORE
        INCOME TAXES                         11,436        11,187        (13,402)       44,325

INCOME TAXES (CREDITS)                        4,312         4,225         (5,173)       16,026

         NET INCOME (LOSS)             $      7,124  $      6,962  $      (8,229) $     28,299

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

QUESTAR PIPELINE COMPANY AND SUBSIDIARIES
CONDENSED CONSOLIDATED BALANCE SHEETS
<TABLE>
<CAPTION>
                                        March 31,                  December 31,
                                           2000          1999          1999
                                       (Unaudited)
                                                    (In Thousands)
<S>                                   <C>           <C>           <C>
ASSETS
Current assets
  Cash and short-term
      investments                      $      1,363                $       2,387
  Notes receivable from
      Questar Corporation                     2,300                        1,100
  Accounts receivable                         8,300  $      4,893         21,704
  Inventories - materials
     and supplies                             2,538         2,890          2,443
  Other current assets                        1,550         1,572          1,782
    Total current assets                     16,051         9,355         29,416

Property, plant and equipment               708,002       671,908        698,236
Less allowances for
    depreciation                            231,699       219,630        228,784
  Net property, plant
        and equipment                       476,303       452,278        469,452

Investment in unconsolidated
     affiliates                              18,968        58,054         11,724
Other assets                                 12,356         9,683         12,435

                                       $    523,678  $    529,370  $     523,027

LIABILITIES AND SHAREHOLDER'S EQUITY
Current liabilities
  Checks outstanding in excess
    of cash balances                                 $        820
  Notes payable to Questar
    Corporation                        $      8,400        20,500  $      42,500
  Accounts payable and accrued
    expenses                                 17,125        40,506         15,206
    Total current liabilities                25,525        61,826         57,706

Long-term debt                              245,006       203,007        245,001
Other liabilities                             3,319         1,562          3,118
Deferred income taxes                        50,768        64,185         49,891

Common shareholder's equity
  Common stock                                6,551         6,551          6,551
  Additional paid-in capital                112,034        82,034         82,034
  Retained earnings                          80,475       110,205         78,726
    Total common shareholder's equity       199,060       198,790        167,311

                                       $    523,678  $    529,370  $     523,027
</TABLE>
See notes to consolidated financial statements
<PAGE>

QUESTAR PIPELINE COMPANY AND SUBSIDIARIES
CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS
(Unaudited)
<TABLE>
<CAPTION>
                                      3 Months Ended
                                        March 31,
                                           2000          1999
                                      (In Thousands)
<S>                                   <C>           <C>
OPERATING ACTIVITIES
  Net income                           $      7,124  $      6,962
  Depreciation                                4,454         4,063
  Deferred income taxes                         877           675
  Earnings from unconsolidated
   affiliates, net of cash
   distributions                               (220)         (642)
                                             12,235        11,058
  Change in operating assets and
    liabilities                              15,745         5,181

        NET CASH PROVIDED FROM
          OPERATING ACTIVITIES               27,980        16,239

INVESTING ACTIVITIES
  Capital expenditures
    Purchase of property, plant
      and equipment                         (10,592)       (2,180)
    Investment in unconsolidated
         affiliates                          (7,024)       (2,700)
      Total capital expenditures            (17,616)       (4,880)
   Proceeds from (costs of)
   disposition of  property,
      plant and equipment                      (713)          706

      NET CASH USED IN INVESTING
        ACTIVITIES                          (18,329)       (4,174)

FINANCING ACTIVITIES
  Checks outstanding in excess
      of cash balances                                        820
  Increase in notes receivable from
      Questar Corporation                    (1,200)
  Decrease in notes payable to
      Questar Corporation                   (34,100)      (17,500)
  Capital contribution                       30,000
  Payment of dividends                       (5,375)       (5,375)

      NET CASH USED IN
        FINANCING ACTIVITIES                (10,675)      (22,055)

      DECREASE IN CASH AND SHORT-
       TERM INVESTMENTS                $     (1,024) $     (9,990)
</TABLE>
See notes to consolidated financial statements
<PAGE>

QUESTAR PIPELINE COMPANY AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
March 31, 2000
(Unaudited)

Note 1 - Basis of Presentation

The interim financial statements reflect all adjustments which are,
in the opinion of management, necessary for a fair presentation of
the results for the interim periods presented.  All such
adjustments are of a normal recurring nature.  The results of
operations for the three-month period ended March 31, 2000, are not
necessarily indicative of the results that may be expected for the
year ending December 31, 2000.  For further information refer to
the financial statements and footnotes thereto included in the
Company's annual report on Form 10-K for the year ended December
31, 1999.

Note 2 - Investment in Unconsolidated Affiliates

Questar Pipeline has interests in partnerships accounted for on an
equity basis.  Transportation and processing of natural gas is the
primary business activity of these partnerships.  Summarized
operating results of the partnerships are listed below.  Income
before income taxes includes capitalized financing charges called
allowance for funds used during construction (AFUDC).

                                      3 Months Ended
                                        March 31,
                                          2000          1999
                                      (In Thousands)

Revenues                               $      2,478  $      1,055
Operating income (loss)                      (2,644)          282
Income (loss) before
   income taxes                              (5,490)        2,665


Note 3 - Receipt of Capital Contribution

On March 1, 2000, Questar Pipeline received a $30 million
contribution of capital from its parent company that was used to
repay short-term debt owed to Questar Corporation.

<PAGE>

Item 2.  Management's Discussion and Analysis of Financial
Conditions and Results of Operations

QUESTAR PIPELINE COMPANY AND SUBSIDIARIES
March 31, 2000
(Unaudited)

Operating Results

Following is a summary of financial and operating information for
the Company:
<TABLE>
<CAPTION>

                                      3 Months Ended              12 Months Ended
                                        March 31,                    March 31,
                                           2000          1999          2000           1999
<S>                                   <C>           <C>           <C>            <C>
FINANCIAL RESULTS - (dollars in thousands)
Revenues
  From unaffiliated customers          $      9,596  $      9,021  $      37,497  $     37,112
  From affiliates                            20,262        18,145         77,355        71,362
    Total revenues                     $     29,858  $     27,166  $     114,852  $    108,474

Operating income                       $     15,035  $     13,064  $      56,366  $     53,456
Net income (loss)                             7,124         6,962         (8,229)       28,299

OPERATING STATISTICS
Natural gas transportation volumes (in
  thousands of decatherms)
    For unaffiliated customers               29,095        25,946        139,035       113,915
    For Questar Gas

                        36,315        35,635        106,179       104,805
    For other affiliated customers            1,325         3,380         10,098        25,400
      Total transportation                   66,735        64,961        255,312       244,120

   Transportation revenue
     (per decatherm)                   $       0.27  $       0.27  $        0.28  $       0.29
</TABLE>
<PAGE>

Revenues were higher in the 3-and 12-month periods of 2000 compared
with the 1999 periods due primarily to the addition of
gas-processing operations.  A subsidiary of Questar Pipeline,
Questar Transportation Services, began operations at mid-year 1999
to remove carbon dioxide from certain gas supplies to make them
suitable for Questar Gas' system. Revenues for firm-transportation
increased 4% in the 2000 quarter compared to 1999 from the addition
of several firm-transportation contracts. Transportation revenues
were flat in the twelve month periods.

Operating and maintenance expenses were higher in the 2000 periods
when compared with the 1999 periods due primarily from the
inclusion of gas-processing operations in mid-1999.  Increased
investments in capital projects, mainly the gas processing plant,
resulted in higher depreciation charges in the 2000 periods
compared with the 1999 periods. Other taxes declined 8% in the 2000
quarter compared with the year ago quarter mainly from lower
property tax rates in 2000.

Interest and other income was higher in the 2000 periods presented
compared to the 1999 periods mainly from AFUDC (capitalized
financing costs) associated with Questar Pipeline's capital
projects.

Earnings from unconsolidated affiliate were lower in the 2000
periods compared with the 1999 periods. AFUDC of $1,265,000
associated with the TransColorado pipeline was recorded in the
first quarter 1999, with no comparable amounts recorded in the 2000
quarter. The decline in earnings for the twelve months was due
mainly to lower AFUDC from TransColorado and a 1999 pretax
operating loss from a TransColorado of $8.2 million.

Debt expense was higher in the 2000 periods compared to the 1999
periods because of additional long-term borrowings. The Company
borrowed $42 million in October 1999 through a medium-term note
program. The notes have a 10-year life and a weighted-average
coupon rate of 7.48%.  The Company capitalizes a portion of
interest costs associated with construction projects in 2000.

The effective income tax rate was 37.7% in the 2000 quarter
compared with 37.8% in the 1999 quarter.

Liquidity and Capital Resources

Operating Activities

Net cash provided by operating activities of $27,980,000 in the
first quarter of 2000 was $11,741,000 more than the amount reported
for the same period of 1999 due primarily to changes in operating
assets and liabilities. The changes were associated primarily from
lower payments to vendors when compared with a year ago due to the
completion of construction projects.

Investing Activities

Capital expenditures were $17,616,000 in the first quarter of 2000
compared with $4,880,000 in the corresponding 1999 period.  The
increase in the 2000 period is primarily due to expenditures for
the Southern Trails pipeline and the purchase of an additional 18%
interest in the Overthrust Pipeline partnership effective January
1, 2000. Capital expenditures for calendar year 2000 are estimated
to be $68.3 million.

Financing Activities

On March 1, 2000, Questar Pipeline received a $30 million
contribution of capital from its parent company.  The capital
contribution plus the cash generated from operations allowed the
Company to repay $34.1 million of short-term debt borrowed from
Questar Corporation and to fund first-quarter capital expenditures.
Questar Corporation makes loans to the Company under a short-term
arrangement. As of  March 31, Questar Pipeline had borrowed from
Questar $8.4 million in 2000 and $20.5 million in 1999.   Remaining
2000 capital expenditures are expected to be financed with net cash
provided from operating activities, borrowings from Questar
Corporation and issuing medium-term debt.

Regulatory Matters

The Federal Energy Regulatory Commission (FERC) issued a
preliminary determination approving Questar Southern Trails'
proposal to convert a 700-mile pipeline from liquid transportation
to natural gas transportation.  However, an issuance of a
certificate is dependent on completion of a favorable environmental
review.  Questar Pipeline is actively working to complete the
environmental review and on marketing efforts to subscribe the
pipeline capacity.

Revenue Recognition Guideline Issued by the Securities and Exchange
Commission (SEC)

In December 1999, the SEC issued Staff Accounting Bulletin (SAB)
101, "Revenue Recognition in Financial Statements." The issue is
the timing of recording revenues given that sales transactions may
contain some conditions allowing customers to return products or
receive refunds.  The effect of adopting this accounting guideline
is not known at this time because the Company has not completed its
evaluation.  For the Company, the guidelines of  SAB 101are
effective in the second quarter of 2000.

Forward-Looking Statements

This 10-Q contains forward-looking statements about future
operations, capital spending, regulatory matters and expectations
of Questar Pipeline. According to management, these statements are
made in good faith and are reasonable representations of the
Company's expected performance at the time. Actual results may vary
from management's stated expectations and projections due to a
variety of factors.

Important assumptions and other significant factors that could
cause actual results to differ materially from those discussed in
forward-looking statements include changes in general economic
conditions, gas prices and availability of gas supplies,
competition, regulatory issues, weather conditions and other
factors beyond the control of the Company. These other factors
include the rate of inflation and adverse changes in the business
or financial condition of the Company.

These factors are not necessarily all of the important factors that
could cause actual results to differ significantly from those
expressed in any forward-looking statements.  Other unknown or
unpredictable factors could also have a significant adverse effect
on future results. The Company does not undertake an obligation to
update forward-looking information contained herein or elsewhere to
reflect actual results, changes in assumptions or changes in other
factors affecting such forward-looking information.

                               PART II
                          OTHER INFORMATION

Item 1.  Legal Proceedings.

     Questar Pipeline Company (Questar Pipeline or the Company) is
involved in two active cases filed by an independent producer, Jack
Grynberg.  (See the Company's Form 10-K for 1999, Item 3. Legal
Proceedings, for a discussion of the two cases and related matters.)
 One of the two cases is pending in a Utah state district court and
involves allegations of breach of contract, fraud, breach of
fiduciary responsibilities, and negligent misrepresentation.  The
trial court judge ruled against the Company's initial motions to
dismiss or stay the proceedings pending the resolution of issues
involving the parties in other forums.  Questar Pipeline recently
filed a new motion to dismiss, urging that Grynberg's claims are
barred by the relevant statute of limitations, are preempted by
federal law with the Federal Energy Regulatory Commission having
exclusive authority, are not plead with the necessary particularity
for fraud, etc.  The Company has also requested the court to stay
discovery until ruling on the motion and has formally objected to
all of Grynberg's discovery requests.

     The second case is part of Grynberg's massive attack on
pipelines and their affiliates alleging industry-wide mismeasurement
of the value of gas on which royalty payments are due the federal
government.  The case against Questar Pipeline is one of 76
substantially similar complaints filed under the Federal False
Claims Act.  The cases have been consolidated for discovery and
pre-trial rulings in Wyoming's federal district court.  The district
judge has not ruled on the defendants' joint motion to dismiss the
lawsuit.

Item 6.  Exhibits and Reports on Form 8-K

     a.   The following exhibits have been filed as part of this
report.

     Exhibit No.         Exhibit

         12.             Ratio of earnings to fixed charges.

     b.  The Company did not file a Current Report on Form 8-K
during the quarter.

                              SIGNATURES

     Pursuant to the requirements 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.

                                   QUESTAR PIPELINE COMPANY
                                       (Registrant)



May 12, 2000                            /s/ D. N. Rose
                                        D. N. Rose
                                        President and Chief Executive
                                        Officer


May 12, 2000                            /s/ S. E. Parks
                                        S. E. Parks
                                        Vice President, Treasurer, and
                                        Chief Financial Officer


                            EXHIBIT INDEX

Exhibit
Number    Exhibit

   12.    Ratio of earnings to fixed charges.