UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
SCHEDULE 13G
Under the Securities Exchange Act of 1934
(Amendment No. 1)*
Bonneville Pacific Corporation
_______________________________________________________
(Name of Issuer)
Common Stock
_______________________________________________________
(Title of Class of Securities)
098904 20 4
________________________
(CUSIP Number)
December 31, 1999
________________________________________________________
(Date of Event which Requires Filing of this Statement)
Check the appropriate box to designate the rule pursuant to
which this Schedule is filed:
[X] Rule 13d-1(b)
[ ] Rule 13d-1(c)
[ ] Rule 13d-1(d)
* The remainder of this cover page shall be filled out
for a reporting person's initial filing on this form with
respect to the subject class of securities, and for any
subsequent amendment containing information which would
alter disclosures provided in a prior cover page.
The information required in the remainder of this cover
page shall not be deemed to be "filed" for the purpose of
Section 18 of the Securities Exchange Act of 1934 ("Act") or
otherwise subject to the liabilities of that section of the
Act but shall be subject to all other provisions of the Act
(however, see the Notes).
<PAGE>
CUSIP No. 098904204 Schedule 13G Page 2 of 10 Pages
1 NAMES OF REPORTING PERSONS
I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY):
Halcyon/Alan B. Slifka Management Company LLC
2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (SEE
INSTRUCTIONS):
(a) [ ] (b) [ ]
3 SEC USE ONLY:
4 CITIZENSHIP OR PLACE OF ORGANIZATION:
Delaware
NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON
WITH:
5 SOLE VOTING POWER:
6 SHARED VOTING POWER 649,495
7 SOLE DISPOSITIVE POWER
8 SHARED DISPOSITIVE POWER 649,495
9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING
PERSON:
649,495
10 CHECK IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN
SHARES (SEE INSTRUCTIONS): [x]
11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9):
8.9%
12 TYPE OF REPORTING PERSON (SEE INSTRUCTIONS):
IA
<PAGE>
CUSIP No.098904204 Schedule 13G Page 3 of 10 Pages
1 NAMES OF REPORTING PERSONS
I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY):
Halcyon Offshore Management Company LLC
2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (SEE
INSTRUCTIONS):
(a) [ ] (b) [ ]
3 SEC USE ONLY:
4 CITIZENSHIP OR PLACE OF ORGANIZATION:
Delaware
NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON
WITH:
5 SOLE VOTING POWER:
6 SHARED VOTING POWER 127,504
7 SOLE DISPOSITIVE POWER
8 SHARED DISPOSITIVE POWER 127,504
9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING
PERSON:
127,504
10 CHECK IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN
SHARES (SEE INSTRUCTIONS): [x]
11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9):
1.8%
12 TYPE OF REPORTING PERSON (SEE INSTRUCTIONS):
IA
<PAGE>
CUSIP No. 098904204 Schedule 13G Page 4 of 10 Pages
1 NAMES OF REPORTING PERSONS
I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY):
Alan B. Slifka & Company, Limited
2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (SEE
INSTRUCTIONS):
(a) [ ] (b) [ ]
3 SEC USE ONLY:
4 CITIZENSHIP OR PLACE OF ORGANIZATION:
New York State
NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON
WITH:
5 SOLE VOTING POWER:
6 SHARED VOTING POWER 649,495
7 SOLE DISPOSITIVE POWER
8 SHARED DISPOSITIVE POWER 649,495
9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING
PERSON:
649,495
10 CHECK IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN
SHARES (SEE INSTRUCTIONS): [x]
11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9):
8.9%
12 TYPE OF REPORTING PERSON (SEE INSTRUCTIONS):
HC; CO
<PAGE>
CUSIP No. 098904204 Schedule 13G Page 5 of 10 Pages
1 NAMES OF REPORTING PERSONS
I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY):
Alan B. Slifka
2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (SEE
INSTRUCTIONS):
(a) [ ] (b) [ ]
3 SEC USE ONLY:
4 CITIZENSHIP OR PLACE OF ORGANIZATION:
U.S.A.
NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON
WITH:
5 SOLE VOTING POWER:
6 SHARED VOTING POWER 776,999
7 SOLE DISPOSITIVE POWER
8 SHARED DISPOSITIVE POWER 776,999
9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING
PERSON:
776,999
10 CHECK IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN
SHARES (SEE INSTRUCTIONS): [x]
11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9):
10.7%
12 TYPE OF REPORTING PERSON (SEE INSTRUCTIONS):
IN
<PAGE>
Page 6 of 10 Pages
Item 1(a). Name of Issuer
Bonneville Pacific Corporation
Item 1(b). Address of Issuer's Principal Executive Offices
50 West 300 South, Suite 300
Salt Lake City, Utah 84104
Item 2 (a). Name of Person Filing
Halcyon/Alan B. Slifka Management Company LLC
Item 2(b). Address of Principal Business Office or, if
none, Residence
477 Madison Avenue
New York, NY 10022
Item 2(c). Citizenship
The Filing Persons' citizenship or place of
organization is set forth on their respective cover pages
and incorporated herein by reference.
Item 2(d). Title of Class of Securities
Common Stock
Item 2(e). CUSIP Number
098904 20 4
<PAGE>
Page 7 of 10 Pages
Item 3. If this statement is filed pursuant to Sections
240.13d-1(b) or 240.13d-2(b) or (c), check whether the
person filing is a:
(a) [ ] Broker of dealer registered under section 15
of the Act (15 U.S.C. 78o);
(b) [ ] Bank as defined in section 3(a)(6) of the Act
(15 U.S.C. 78c);
(c) [ ] Insurance company as defined in section
3(a)(19) of the Act (15 U.S.C. 78c);
(d) [ ] Investment company registered under section 8
of the Investment Company Act of 1940 (15 U.S.C.
80a-8);
(e) [x] An investment adviser in accordance with
Section 240.13d-1(b)(1)(ii)(E);
(f) [ ] An employee benefit plan or endowment fund in
accordance with Section 240.13d-1(b)(1)(ii)(F);
(g) [x] A parent holding company or control person in
accordance with Section 240.13d-1(b)(1)(ii)(G);
(h) [ ] A savings association as defined in Section
3(b) of the Federal Deposit Insurance Act
(12 U.S.C. 1813);
(i) [ ] A church plan that is excluded from the definition
of an investment company under section 3(c)(14) of
the Investment Company Act of 1940 (15 U.S.C. 80a-3);
(j) [ ] Group, in accordance with Section 240.13d-1(b)(1)
(ii)(J).
<PAGE>
Page 8 of 10 Pages
Item 4. Ownership.
Provide the following information regarding the
aggregate number and percentage of the class of securities
of the issuer identified in Item 1.
(a) Amount beneficially owned
The Filing Persons beneficially own the
number of shares reflected on the cover
pages which are incorporated herein by
reference.
(b) Percent of class
The Filing Persons' beneficial ownership
on a percentage basis are reflected on
the cover pages and are incorporated by
reference herein.
(c) Number of shares as to which such person has:
(i) Sole power to vote or to direct the
vote:
The shares for which the Filing
Persons have sole voting powers are
set forth on the cover pages and
are incorporated herein by
reference.
(ii) Shared power to vote or to direct
the vote:
None.
(iii) Sole power to dispose or to direct the
disposition of:
The shares for which the Filing
Persons have sole disposition
powers are set forth on the cover
pages and are incorporated herein
by reference.
(iv) Shared power to dispose or to direct the
disposition of:
None.
Item 5. Ownership of Five Percent or Less of a Class.
If this statement is being filed to report the
fact that as of the date hereof the reporting person has
ceased to be the beneficial owner of more than five percent
of the class or securities, check the following [ ].
Not Applicable.
<PAGE>
Page 9 of 10 Pages
Item 6. Ownership of More than Five Percent on Behalf of
Another Person.
The advisees of Halcyon/Alan B. Slifka Management
Company LLC and Halcyon Offshore Management
Company LLC have a right to receive distributions
on the proceeds of sale of the shares. All
securities reported are owned by the advisees, and
each Filing Person disclaims beneficial ownership
of such securities.
Item 7. Identification and Classification of the
Subsidiary Which Acquired the Security Being Reported
on By the Parent Holding Company.
Halcyon/Alan B. Slifka Management Company LLC
Item 8. Identification and Classification of Members of
the Group.
Not Applicable.
Item 9. Notice of Dissolution of Group.
Not Applicable.
Item 10. Certification.
By signing below I certify that, to the best of my
knowledge and belief, the securities referred to
above were acquired and are held in the ordinary
course of business and were not acquired and are
not held for the purpose of or with the effect of
changing or influencing the control of the issuer
of the securities and were not acquired and are
not held in connection with or as a participant in
any transaction having that purpose or effect.
<PAGE>
Page 10 of 10 Pages
SIGNATURE
After reasonable inquiry and to the best of my knowledge and
belief, I certify that the information set forth in this
statement is true, complete and correct.
HALCYON/ALAN B. SLIFKA MANAGEMENT
COMPANY LLC
By:
/s/ James H. Schropp
__________________________
Name: James H. Schropp
Title: Attorney-in-Fact,duly
authorized under Power of
Attorney dated February 9,
1999, filed with Abraxas Petroleum
Corporation Schedule 13G
filed January 6, 2000
Dated: January 10, 2000
