EXHIBIT 3(b)
 
                                TRUST AGREEMENT
                                ---------------

     This TRUST AGREEMENT, dated as of March __, 1997 (this "Trust Agreement"),
among (i) South Jersey Gas Company, a New Jersey corporation (the "Depositor"),
(ii) The Bank of New York (Delaware), a Delaware banking corporation, as
trustee, (iii) The Bank of New York, a New York banking corporation, as trustee,
and (iv) David A. Kindlick, an individual, as trustee (each of such trustees in
(ii), (iii) and (iv) a "Trustee" and collectively, the "Trustees"). The
Depositor and the Trustees hereby agree as follows:

          1.   The trust created hereby (the "Trust") shall be known as "SJG
Capital Trust" in which name the Trustees, or the Depositor to the extent
provided herein, may engage in the transactions contemplated hereby, make and
execute contracts, and sue and be sued.

          2.   The Depositor hereby assigns, transfers conveys and sets over to
the Trustees the sum of $10.  The Trustees hereby acknowledge receipt of such
amount in trust from the Depositor, which amount shall constitute the initial
trust estate.  The Trustees hereby declare that they will hold the trust estate
in trust for the Depositor.  It is the intention of the parties hereto that the
Trust created hereby constitute a business trust under Chapter 38 of Title 12 of
the Delaware Code, 12 Del. C. (S) 3801, et seq. (the "Business Trust Act"), and
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that this document constitutes the governing instrument of the Trust.  The
Trustees are hereby authorized and directed to execute and file a certificate of
trust with the Delaware Secretary of State in accordance with the provisions of
the Business Trust Act.

          3.   The Depositor and the Trustees will enter into an amended and
restated Trust Agreement, satisfactory to each such party and substantially in
the form included as an exhibit to the 1933 Act Registration Statement (as
defined below), to provide for the contemplated operation of the Trust created
hereby and the issuance of the Preferred Securities and Common Securities
referred to therein.  Prior to the execution and delivery of such amended and
restated Trust Agreement, the Trustees shall not have any duty or obligation
hereunder or with respect to the trust estate, except as otherwise required by
applicable law or as may be necessary to obtain prior to such execution and
delivery of any licenses, consents or approvals required by applicable law or
otherwise.

          4.   The Depositor, as the sponsor of the Trust, is hereby authorized
(i) to file with the Securities and Exchange Commission (the "Commission") and
execute, in each case on behalf of the Trust, (a) the Registration Statement on
Form S-3 (the "1933 Act Registration Statement"), including any pre-effective or
post-effective amendments to the 1933 Act Registration Statement, relating to
the registration under the Securities Act of 1933, as amended, of the Preferred
Securities of the Trust and possibly certain other securities and (b) a
Registration Statement on Form 8-A (the "1934 Act Registration Statement")
(including all pre-effective and post-effective amendments thereto) relating to
the registration of the Preferred Securities of the Trust under the Securities
Exchange Act of 1934, as amended; (ii) to file with the New York Stock Exchange
or any other national stock exchange or The Nasdaq National Market (each, an
"Exchange") and execute on behalf of the Trust one or more listing applications
and all other applications, statements, certificates, agreements and other
instruments as shall be necessary or desirable to cause the Preferred Securities
to be listed on any of the Exchanges; (iii) to file and 

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execute on behalf of the Trust such applications, reports, surety bonds,
irrevocable consents, appointments of attorney for service of process and other
papers and documents as shall be necessary or desirable to register the
Preferred Securities under the securities or blue sky laws of such jurisdictions
as the Depositor, on behalf of the Trust, may deem necessary or desirable and
(iv) to execute on behalf of the Trust that certain Underwriting Agreement
relating to the Preferred Securities, among the Trust, the Depositor and the
several Underwriters named therein, substantially in the form included as an
exhibit to the 1933 Act Registration Statement. In the event that any filing
referred to in clauses (i), (ii) and (iii) above is required by the rules and
regulations of the Commission, an Exchange or state securities or blue sky laws,
to be executed on behalf of the Trust by one or more of the Trustees, each of
the Trustees, in its or his capacity as a Trustee of the Trust, is hereby
authorized and directed to join in any such filing and to execute on behalf of
the Trust any and all of the foregoing, it being understood that neither The
Bank of New York (Delaware) nor The Bank of New York in its capacity as a
Trustee of the Trust shall be required to join in any such filing or execute on
behalf of the Trust any such document unless required by the rules and
regulations of the Commission, the Exchange or state securities or blue sky
laws. In connection with the filings referred to above, the Depositor and David
A. Kindlick, as a Trustee and not in his individual capacity, hereby constitutes
and appoints George L. Baulig and David A. Kindlick, and each of them, as their
true and lawful attorneys-in-fact and agents, with full power of substitution
and resubstitution, for the Depositor or such Trustee or in the Depositor's or
such Trustee's name, place and stead, in any and all capacities, to sign any and
all amendments (including post-effective amendments) to the 1933 Act
Registration Statement and the 1934 Act Registration Statement and to file the
same, with all exhibits thereto, and other documents in connection therewith,
with the Commission, the Exchange and administrators of state securities or blue
sky laws, granting unto said attorneys-in-fact and agents full power and
authority to do and perform each and every act and thing requisite and necessary
to be done in connection therewith, as fully to all intents and purposes as the
Depositor or such Trustee might or could to in person, hereby ratifying and
confirming all that said attorneys-in-fact and agents or any of them, or their
respective substitute or substitutes, shall do or cause to be done by virtue
hereof.

          5.   This Trust Agreement may be executed in one or more counterparts.

          6.   The number of Trustees initially shall be three (3) and
thereafter the number of Trustees shall be such number as shall be fixed from
time to time by a written instrument signed by the Depositor which may increase
or decrease the number of Trustees; provided, however, that to the extent
required by the Business Trust Act, one Trustee shall either be a natural person
who is a resident of the State of Delaware or, if not a natural person, an
entity which has its principal place of business in the State of Delaware and
otherwise meets the requirements of applicable Delaware law.  Subject to the
foregoing, the Depositor is entitled to appoint or remove without cause any
Trustee at any time.  The Trustees may resign upon thirty (30) days' prior
notice to the Depositor.

          7.   This Trust Agreement shall be governed by, and construed in
accordance with, the laws of the State of Delaware (without regard to conflict
of laws of principles).

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     IN WITNESS WHEREOF, the parties hereto have caused this Trust Agreement to
be duly executed as of the day and year first above written.

 
                              South Jersey Gas Company            
                              as Depositor


                              By:   _________________________
                                    Name:  George L. Baulig
                                    Title: Secretary


                              The Bank of New York (Delaware), not in its
                              individual capacity but solely as Trustee of the
                              Trust


                              By:   __________________________
                                    Name:
                                    Title:


                              The Bank of New York, not in its individual
                              capacity but solely as Trustee of the Trust


                              By:   __________________________
                                    Name:
                                    Title:


                              _________________________________
                              David A. Kindlick, not in his individual capacity
                              but solely as Trustee of the Trust

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