FORM 4

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility
Holding Company Act of 1935 or Section 30(f) of the Investment Company Act of 1940

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Check this box if no longer
subject to Section 16. Form 4 or
Form 5 obligations may continue.
See Instruction 1(b).

 (Print or Type Responses)

1. Name and Address of Reporting Person*          

Adamson, Brent L.

 Questar Corporation - STR

6. Relationship of Reporting Person(s) to Issuer
                  (Check all applicable)

Director

10% Owner

 X

Officer (give
title below)

Other (specify
below)

Executive Officer 

 180 East 100 South, P.O. Box 45360

 February 18 & 19, 2003

7. Individual or Joint/Group Filing (Check Applicable Line)

Form filed by One Reporting Person

(Street)
Salt Lake City, Utah 84145-0360

Form filed by More than One Reporting Person

(City)                      (State)                  (Zip)

Table I   Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned

1. Title of Security
   (Instr. 3)

2. Trans-
    action
    Date

  (Month/
   Day/
   Year)

2A.
Deemed
Execution
Date, if
any
  (Month/
   Day/
   Year)

3. Trans-
    action
    Code
    (Instr.8)

4. Securities Acquired (A)
    or Disposed of (D)
    (Instr. 3, 4 and 5)

5. Amount of
    Securities
    Beneficially
    Owned
    Following
    Reported
    Transaction(s)

    (Instr. 3 and 4)

6. Owner-
    ship
    Form:
    Direct
    (D) or
    Indirect
    (I)

 (Instr. 4)

7. Nature of
    Indirect
    Beneficial
    Owner-
    ship



   (Instr. 4)

Code

V

Amount

(A)
or
(D)

Price

Common Stock (and attached Common Stock Purchase Rights) 

02-18-2003

M

4,000

A

$15.75

Common Stock (and attached Common Stock Purchase Rights) 

02-18-2003

F

2,330

D

$28.10

11,057

D

Common Stock (and attached Common Stock Purchase Rights)

02-19-2003

I

7,641.5430

D

$28.05

0.0000 ¹

I 

Through Trust for Benefit Plan

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.

*

If the form is filed by more than one reporting person, see Instruction 4(b)(v).

Persons who respond to the collection of information contained
in this form are not required to respond unless the form displays
a currently valid OMB control number.

SEC 1474 (9-02)

FORM 4 (continued)

Table II   Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)

1. Title of Derivative
    Security
    (Instr. 3)

2. Conver-
    sion or
    Exercise
    Price of
    Deri-
    vative
   Security

(Month/
Day/
Year)

  (Month/
   Day/
   Year)

4. Trans-
    action
    Code
    (Instr.8)

5. Number of Deriv-
    ative Securities Ac-
    quired (A) or Dis-
    posed of (D)
    (Instr. 3, 4 and 5)

6. Date Exer-
    cisable and
    Expiration
    Date
    (Month/Day/
    Year)

7. Title and Amount of
    Underlying Securities
    (Instr. 3 and 4)

8. Price
    of
    Deriv-
    ative
    Secur-
    ity
    (Instr.
    5)

9. Number
   of deriv-
   ative
   Secur-
   ities
   Bene-
   ficially
   Owned
   Follow-
   ing
   Reported
   Trans-
   action(s)
   (Instr. 4)

10. Owner-
     ship
     Form of
     Deri-
     vative
     Security:
     Direct
     (D) or
     Indirect
     (I)
     (Instr. 4)

11. Nature
     of
     Indirect
     Benefi-
     cial
     Owner-
     ship
     (Instr. 4)

Code

V

(A)

(D)

Date
Exer-
cisable

Expira-
tion
Date

Title

Amount or
Number of
Shares

Stock Option

$15.75

02-18-2003

M

4,000

08-08-1994
08-08-1995
08-08-1996
08-08-1997

02-08-2004

Common Stock (and attached Common Stock Purchase Rights)

4,000

35,750 ²

Explanation of Responses:

1

I directed the trustee of Questar's Employee Investment Plan to sell 7,641.5430 equivalent shares in my account and transfer the proceeds to alternative investments.

2

These numbers include vested options only. Detailed information concerning my options has been previously disclosed.

/s/ Connie C. Holbrook

 February 20, 2003

**

Intentional misstatements or omissions of facts constitute Federal Criminal Violations.

Connie C. Holbrook as Attorney in Fact
for Brent L. Adamson

Date

See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).

**Signature of Reporting Person

Note: File three copies of this Form, one of which must be manually signed. If space is insufficient,
          see Instruction 6 for procedure.

Potential persons who are to respond to the collection of information contained in this form are not
required to respond unless the form displays a currently valid OMB Number.