Exhibit 10.18.1 
                       EASTERN ENTERPRISES HEADQUARTERS 
                               RETIREMENT PLAN 
Amendment 

Pursuant to Section 14.01 of the Eastern Enterprises Headquarters Retirement 
Plan, said Plan is hereby amended as follows: 

1. Effective July 1, 1994, Section 2.03 is amended by inserting the following 
at the end of the first paragraph thereof: 

"Notwithstanding the foregoing, the Annual Earnings of an Eligible Employee 
who is participating in the Employer's 'Sales Department Compensation 
Program' as of each Earnings Measurement Date shall mean such Employee's 
annual salary rate plus the annual performance bonus awarded to him under 
such program for the calendar year immediately preceding such Earnings 
Measurement Date." 

2. Effective July 1, 1994, Section 2.03 is amended further by deleting the 
last paragraph thereof and substituting the following therefor: 

"For each Plan Year ending before July 1, 1994, a Member's Annual Earnings 
shall be limited for all purposes under the Plan to $200,000 (or such larger 
amount as the Secretary of the Treasury may determine for such Plan Year 
under section 401(a)(17) of the Code). For each Plan Year beginning after 
June 30, 1994 (and for each prior Plan Year in which Annual Earnings are 
taken into account in computing benefits in any Plan Year beginning after 
June 30, 1994), Annual Earnings shall be limited for all purposes under the 
Plan to $150,000 (or such larger amount as the Secretary of the Treasury may 
determine for such Plan Year under section 401(a)(17) of the Code.) In 
applying the above limitations, the special rules of Section 5.06 below shall 
apply. In addition, the family aggregation rules of Code section 414(q)(6) 
shall apply, except that in applying such rules, the term 'family' shall 
include only the spouse of the Member and any lineal descendants who have not 
attained age 19 before the close of the Plan Year." 

3. Effective July 1, 1993, Section 2.11 is amended by deleting subsections 
(c) and (d) and by substituting the following therefor: 

"(c) employed in a location to which the Plan has not been specifically 
extended by the Board of Trustees, 

(d) considered an Employee solely by reason of the leased-employee rules of 
section 414(n) of the Code and the second sentence of paragraph 2.12, or 

(e) employed to perform or complete a specific project, and classified as a 
temporary employee for other purposes of the Employer." 

4. Section 2.11 is amended further by inserting the following sentences at 
the end thereof: 

"Effective July 1, 1993, any Employee who is employed by Midland Enterprises 
Inc. or a subsidiary thereof with a salary grade of 18 or 19 shall be 
considered an Eligible Employee under this Plan. Effective January 1, 1994, 
the term Eligible Employee shall also include the employee(s) of WaterPro 
Supplies Corporation listed on Schedule A." 

5. Effective July 1, 1994, Section 2.19(d) is amended by inserting, 
immediately following subparagraph (iii), the following subparagraph (iv): 

"(iv) pursuant to an approved leave of absence under the terms of the Family 
and Medical Leave Act, but only to the extent required by that Act as 
reasonably determined by the Administrator,". 

6. Effective July 1, 1994, Section 2.19 is further amended by inserting the 
following at the end thereof: 

"Notwithstanding the foregoing and except as otherwise provided by law, no 
more than 501 Hours of Service will be credited to any Employee on account of 
any single continuous period during which the Employee performs no duties. 

 Except as hereinafter provided, Hours of Service to be credited to an 
Employee under (a), (b) or (c) above will be calculated and credited pursuant 
to paragraphs (b) and (c) of section 2530.200b-2 of the Department of Labor 
Regulations, which are incorporated herein by reference." 

7. Effective July 1, 1994, Article V is amended by adding at the end thereof 
the following new section: 

"5.06 Members Subject to Limitations on Annual Earnings. Notwithstanding 
anything to the contrary in Sections 5.01 through 5.05, 

   (a) in the case of a Member whose Annual Earnings for any Plan Year prior 
to July 1, 1989 exceeded $200,000, the Member's accrued benefit at any time 
after June 30, 1989 and before July 1, 1994, and the amount of benefits 
determined for the Member under Sections 5.01 through 5.05 at any time during 
such period, shall be the greater of: 

    (1) the amount determined under the applicable formula taking into 
account the Member's total Years of Benefit Service, or 

    (2) the Member's accrued benefit as of June 30, 1989. 

   (b) in the case of a Member whose Annual Earnings for any Plan Year prior 
to July 1, 1994, exceeded $150,000, the Member's accrued benefit at any time 
after June 30, 1994, and the amount of benefits determined for the Member 
under Sections 5.01 through 5.05 at any time after that date shall be the 
greater of: 

   (1) the amount determined under the applicable formula taking into account 
the Member's total Years of Benefit Service, or 

   (2) the sum of (i) the Member's accrued benefit as of June 30, 1994, 
determined after giving effect to Section 5.06(a), and (ii) the amount 
determined under the applicable formula as of the date benefits are 
determined, taking into account only Years of Benefit Service after June 30, 
1994. 

   (c) For purposes of (b)(2) above, Years of Benefit Service shall be 
determined by treating the Year of Benefit Service that includes June 30, 
1994 as consisting of two fractional years, the earlier of which shall be 
included in Years of Benefit Service in determining the Member's accrued 
benefit as of June 30, 1994 and the later of which shall be included in Years 
of Benefit Service after June 30, 1994." 

8. Effective July 1, 1994, Article VII is renamed "Forms of Benefit". 

9. Effective with respect to individuals whose annuity starting date (as 
defined in Code section 417(f)(2)) is on or after July 1, 1994, Article VII 
is further amended by adding the following at the end thereof: 

"7.07 Optional Forms of Benefit for Non-Married Members. In lieu of a monthly 
benefit payable for his lifetime only, a Member who is not married on his 
annuity starting date may elect (in the manner prescribed by the 
Administrator) to receive: 

   (a) a reduced monthly benefit during his lifetime with one-half of such 
reduced benefit to continue after his death to his designated Beneficiary for 
the Beneficiary's lifetime, or 

   (b) a reduced monthly benefit during his lifetime with two-thirds of such 
reduced benefit to continue after his death to his designated Beneficiary for 
the Beneficiary's lifetime, or 

   (c) a reduced monthly benefit during his lifetime with the entire such 
reduced benefit to continue after his death to his designated Beneficiary for 
the Beneficiary's lifetime. 

Notwithstanding any other provision of the Plan to the contrary, the 
provisions of this Section 7.07 shall apply only with respect to 
Beneficiaries who are "designated beneficiaries" within the meaning of Code 
section 401(a)(9)(E) and the rules promulgated thereunder, and the forms of 
benefit described in (b) and (c) above shall be available only with respect 
to Beneficiaries whose age is such as to satisfy the incidental death benefit 
requirements under section 401(a)(9) of the Code (as construed by said 
rules)." 

10. Effective January 1, 1993, Article VII is amended further by adding at 
the end thereof the following: 

"7.08 Direct Rollovers. Notwithstanding any provision of the Plan to the 
contrary that may otherwise limit a distributee's election under this Section 
7.08, for distributions made on or after January 1, 1993, a distributee may 
elect, at the time and in the manner prescribed by the Administrator, to have 
any portion of an eligible rollover distribution, subject to the limitations 
imposed in temporary Treasury Regulation section 1.401(a)(31)-1T, paid 
directly to an eligible retirement plan specified by the distributee in a 
direct rollover. For purposes of this Section 7.08, the following definitions 
shall apply: 

   (a) An 'eligible rollover distribution' is any distribution of all or any 
portion of the distributee's benefit, provided such portion is equal to or in 
excess of $200, except that an eligible rollover distribution does not 

include the following: any distribution that is one of a series of 
substantially equal periodic payments (not less frequently than annually) 
made for the life (or life expectancy) of the distributee or the joint lives 
of the distributee and the distributee's beneficiary, or for a specified 
period of ten years or more, or any distribution to the extent such 
distribution is required under Code section 401(a)(9). 

   (b) With respect to a distributee other than the Member's surviving 
spouse, an 'eligible retirement plan' is an individual retirement account 
described in Code section 408(a), an individual retirement annuity described 
in Code section 408(b), an annuity plan described in Code section 403(a), or 
a qualified trust described in Code section 401(a). With respect to a 
distributee who is a Member's surviving spouse, an eligible retirement plan 
is an individual retirement account or an individual retirement annuity. 

   (c) A 'distributee' includes an Employee or former Employee. In addition, 
the Employee's or former Employee's surviving spouse and the Employee's or 
former Employee's spouse or former spouse who is an alternate payee under a 
Qualified Domestic Relations Order described in Section 2.24A above, are 
distributees with regard to the interest of the spouse or former spouse. 

   (d) A 'direct rollover' is a payment by the Plan to the eligible 
retirement plan specified by the distributee." 

11. Effective July 1, 1994, Section 9.02 is amended by adding immediately 
after the phrase "Member's severance from service for any reason" the 
following: ", including death". 

12. Effective July 1, 1994, Section 9.02 is amended further by deleting the 
first sentence of the second paragraph thereof in its entirety and by 
substituting the following therefor: 

"For purposes of determining the present value of an individual's benefit or 
the actuarial equivalency of an individual's benefit or the actuarial 
equivalency of alternative forms under this paragraph, the same interest and 
mortality assumptions as are specified in paragraph 15.04 shall be applied to 
the Member's accrued benefit payable commencing at the later of retirement or 
the Member's Normal Retirement Date, provided that the interest assumption 
used for purposes of this paragraph 9.02 shall not be greater than the 
schedule of immediate and deferred interest rate(s) which would be used by 
the Pension Benefit Guaranty Corporation, as of the beginning of the Plan 
Year in which the lump sum is paid, for purposes of determining the present 
value of benefits on plan termination." 

13. Effective July 1, 1994, Section 15.04 is amended by deleting the phrase 
"retires, separates from service or dies" in the second sentence thereof and 
by substituting the following therefor: "separates from service (whether by 
death, retirement or otherwise)". 

14. Effective January 1, 1994, the Plan is amended by inserting the following 
at the end thereof: