SECURITIES AND EXCHANGE COMMISSION
                           WASHINGTON, DC 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, 1999 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 NUMBER 0-10721
     
                        YANKEE ENERGY SYSTEM, INC.
          (EXACT NAME OF REGISTRANT AS SPECIFIED IN ITS CHARTER)

          CONNECTICUT                          06-1236430
(STATE OR OTHER JURISDICTION OF              (I.R.S. EMPLOYER
INCORPORATION OR ORGANIZATION)               IDENTIFICATION NO.)

     599 RESEARCH PARKWAY     
     MERIDEN, CONNECTICUT                       06450-1030
(ADDRESS OF PRINCIPAL EXECUTIVE                 (ZIP CODE)
OFFICES)

               REGISTRANT'S TELEPHONE NUMBER (203) 639-4000

                              NOT APPLICABLE
(FORMER NAME, FORMER ADDRESS AND FORMER FISCAL YEAR, IF CHANGED
 SINCE LAST REPORT)

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 ____

                   APPLICABLE ONLY TO CORPORATE ISSUERS:

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

NUMBER OF SHARES OF COMMON STOCK ($5.00 PAR VALUE) 
OUTSTANDING AT APRIL 30, 1999                10,623,484         

          



        


                    PART 1. FINANCIAL INFORMATION

Item 1.   Financial Statements


                YANKEE ENERGY SYSTEM, INC. AND SUBSIDIARIES
               CONSOLIDATED STATEMENTS OF INCOME (UNAUDITED)


                            Three Months Ended
                                          March 31,
                                       1999       1998
                                     _______    ______
                                     (In thousands,except 
						         per share amounts)

                                          
Revenues
  Utility revenues                   $110,871   $106,325
  Nonutility revenues                   6,573      6,868
                                      _______    _______
     Total revenues                   117,444    113,193
                                      _______    _______
Operating expenses:
  Cost of gas/goods sold               59,482     60,805
  Operations                           16,318     14,990
  Maintenance                           1,605      1,424
  Depreciation and amortization         5,273      5,055
  Taxes other than income taxes         7,731      7,091
                                      _______    _______ 
     Total operating expenses          90,409     89,365
                                      _______    _______
 
Operating income                       27,035     23,828

Other income/expense:
  Other income, net                        18        181
  Interest expense, net                 3,741      3,954
                                      _______    _______
Income before income taxes             23,312     20,055

Provision for income taxes             11,862      9,245
                                      _______    _______
                                 
Net Income                           $ 11,450   $ 10,810
                                      _______    _______
                                      _______    _______

Basic and Diluted Earnings Per 
   Common Share		                		  $   1.08   $   1.03
                                      _______    _______
                                      _______    _______

                             

The accompanying notes are an integral part of these consolidated
financial statements.




                YANKEE ENERGY SYSTEM, INC. AND SUBSIDIARIES
               CONSOLIDATED STATEMENTS OF INCOME (UNAUDITED)


                              Six Months Ended
                                          March 31,      
                                       1999       1998
                                       ____       ____
                                    (In thousands, except
                                      per share information)

                                          
Revenues
  Utility revenues                   $188,053   $203,443
  Nonutility revenues                  14,392     12,345
                                      _______    _______
    Total revenues                    202,445    215,788
                                      _______    _______
Operating expenses:
  Cost of gas/goods sold              102,314    117,212
  Operations                           30,704     29,955
  Maintenance                           3,043      2,615
  Depreciation and amortization        10,359      9,733
  Taxes other than income taxes        12,924     12,111
                                      ________   ________
    Total operating expenses          159,344    171,626
                                      _______    _______

Operating income                       43,101     44,162

Other income/expense:
  Other income, net                        79        250
  Interest expense, net                 7,263      6,928 
                                      _______    _______
Income before income taxes             35,917     37,484

Provision for income taxes             16,621     17,583
                                      _______    _______

Net Income                           $ 19,296   $ 19,901
                                      _______    _______
                                      _______    _______

Basic and Diluted Earnings Per 
   Common Share		                		  $   1.82   $   1.90
                                      _______    _______
                                      _______    _______





The accompanying notes are an integral part of these consolidated
financial statements.




               YANKEE ENERGY SYSTEM, INC. AND SUBSIDIARIES
                        CONSOLIDATED BALANCE SHEETS


                                      March 31,  September 30,  
                                        1999         1998
                                      ________    ___________
                                     (Unaudited)
                                        (In thousands)

                                  
ASSETS                                       
Utility Plant, at original cost      $562,440   $547,098
  Less:  Accumulated provision for 
         depreciation                 214,867    207,872
                                     ________   ________
                                      347,573    339,226
Construction work in progress          24,165     28,707
                                     ________   ________

   Total net utility plant            371,738    367,933
                                     ________   ________
                                      
Other property and investments         13,147     12,778
Assets held for sale			    15,523     12,361

Current assets:
  Cash and temporary cash 
    investments                        10,986      1,881
  Accounts receivable, net             61,597     35,946
  Fuel supplies                         1,354      1,418
  Other materials and supplies          2,091      1,972
  Accrued utility revenues             10,945      4,028
  Deferred gas costs, current portion   1,827      1,879
  Prepaid expenses and other            4,595     25,327
                                      _______    _______
   Total current assets                93,395     72,451
                                      _______    _______

  Deferred gas costs, net                ---       8,601
  Recoverable environmental
    cleanup costs                      33,493     33,670
  Recoverable income taxes              4,986     10,673
  Recoverable postretirement
    benefits costs                      1,844      1,725
  Other deferred debits                13,868     15,092
                                      _______    _______
                                                 
   Total Assets                      $547,994   $535,284
                                      _______   ________
                                      _______   ________



The accompanying notes are an integral part of these consolidated
financial statements.





                YANKEE ENERGY SYSTEM, INC. AND SUBSIDIARIES
                        CONSOLIDATED BALANCE SHEETS

                            March 31,  September 30,
                                       1999         1998         
                                     _________   ____________
                                    (Unaudited)
                                         (In thousands)
                                          
CAPITALIZATION AND LIABILITIES

Capitalization:
  Common shares - $5.00 par value.
  Authorized 20,000,000 shares; 10,621,389
  shares outstanding at March 31, 1999
  and 10,545,362 outstanding at
  September 30, 1998                 $ 53,107   $ 52,727
  Capital surplus, paid in             90,761     89,818
  Retained earnings                    35,034     23,047
  Employee stock ownership
    plan guarantee                       (200)      (600)
                                      ________   ________
  Total common shareholders' equity   178,702    164,992
  Long-term debt, net of
    current portion                   164,000    131,048
                                      _______    _______
     Total capitalization             342,702    296,040
                                      _______    _______
Current liabilities:
  Notes payable to banks               16,500     75,700
  Long-term debt, current portion      20,615      4,217
  Accounts payable                     12,330     19,643
  Accrued taxes                        18,799       --- 
  Accrued interest                      3,518      3,176
  Pipeline transition costs payable     2,035      2,516 
  Other                                 5,274      8,402
                                      _______    _______
     Total current liabilities         79,071    113,654
                                      _______    _______

Deferred gas costs, net                11,608       ---
Accumulated deferred income taxes      60,066     72,816
Accumulated deferred investment 
  tax credits                           8,137      8,325
Liability for environmental
  cleanup costs                        35,000     35,000
Postretirement benefits obligation      3,522      3,353
Other deferred credits                  7,888      6,096
                                      
Commitments and contingencies (Note 4)   ---        ---
                                     ________   ________     
     Total Capitalization and
        Liabilities                  $547,994   $535,284
                                     ________   ________
                                     ________   ________


The accompanying notes are an integral part of these consolidated
financial statements.

        


            YANKEE ENERGY SYSTEM, INC. AND SUBSIDIARIES
          CONSOLIDATED STATEMENTS OF CASH FLOWS (UNAUDITED)


                            Six Months Ended
                                        March 31,
                                     __________________
                                     1999       1998
                                     ____       ____
                                      (In thousands) 

                                          
CASH FLOWS FROM OPERATING ACTIVITIES:
  Net income                         $19,296    $19,901
  Adjusted for the following:
    Depreciation and amortization     10,359      9,733 
    Equity earnings from investments     154        (77)
    Deferred income taxes, net        (7,251)    (3,674)
    Deferred gas costs activity and 
      other non-cash items            22,940     16,025
  Changes in working capital:
    Accounts receivable and accrued
      utility revenues               (32,568)   (44,340)
    Prepaid expenses and other        39,531     (4,720)
    Accounts payable                  (7,313)    24,897
    Other working capital 
      (excludes cash)                 (6,281)     9,694
                                     _______    _______     
Net cash provided by 
  operating activities                38,867     27,439
                                     _______    _______     
CASH FLOWS FROM FINANCING ACTIVITIES:
  Net proceeds from common stock 
     issuance                          1,188      1,040
  Issuance of long-term debt          50,000       ---
  Retirement of long-term debt          (650)      (650)
  Decrease in short-term debt        (59,200)      (500)
  Cash dividends                      (7,309)    (7,013)
                                     ________   ________
Net cash used for financing 
   activities                        (15,971)    (7,123)         
                                     ________   ________
                                     
INVESTMENT IN PLANT AND OTHER:
  Utility plant                      (12,938)   (14,945)
  Other property and investments        (853)    (3,413) 
                                    ________   ________
Net cash used for plant and other    (13,791)   (18,358)
                                     ________    _______

Net Increase in Cash and Temporary
   Cash Investments for the Period     9,105      1,958 

Cash and Temporary Cash Investments,
   beginning of period                 1,881      2,239 
                                     ________   ________
Cash and Temporary Cash Investments,
   end of period                     $10,986    $ 4,197 
                                     ________   _______
                                     ________   _______     
Supplemental Cash Flow Information:
  Cash paid during the period for:
  Interest, net of amounts 
   capitalized                       $ 7,468    $ 6,228 
  Income taxes                       $   351    $   856     



The accompanying notes are an integral part of these consolidated
financial statements.



YANKEE ENERGY SYSTEM, INC. AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (UNAUDITED)


1)	GENERAL

The accompanying unaudited consolidated financial statements 
should be read in conjunction with the Annual Report of 
Yankee Energy System, Inc. (the Company) on Form 10-K for 
the fiscal year ended September 30, 1998 (1998 Form 10-K), 
including the audited financial statements (and notes 
thereto) incorporated by reference therein and the Company's 
quarterly report on Form 10-Q for the quarter ended December 
31, 1998.  In the opinion of the Company, the accompanying 
unaudited consolidated financial statements contain all 
adjustments (consisting only of normal recurring accruals) 
necessary to present fairly the financial position of the 
Company as of March 31, 1999, and its results of operations 
for the three and six months ended March 31, 1999 and 1998 
and cash flows for the six months ended March 31, 1999 and 
1998.  The results of operations for the three and six 
months ended March 31, 1999 and 1998 are not necessarily 
indicative of the results expected for a full year, due 
mainly to the highly seasonal nature of the gas business.

2)	ACCOUNTING FOR THE EFFECTS OF REGULATION

The Company's wholly-owned subsidiary, Yankee Gas Services 
Company (Yankee Gas), is subject to regulation by the 
Connecticut Department of Public Utility Control (DPUC).  
The Company prepares its financial statements in accordance 
with generally accepted accounting principles which includes 
the provisions of Statement of Financial Accounting 
Standards No. 71, "Accounting for the Effects of Certain 
Types of Regulation," (FAS 71).  FAS 71 requires a cost-
based, rate-regulated enterprise such as Yankee Gas to 
reflect the impact of regulatory decisions in its financial 
statements.  The DPUC, through the rate regulation process, 
can create regulatory assets that result when costs are 
allowed for ratemaking purposes in a period other than the 
period in which the costs would be charged to expense by an 
unregulated enterprise.

Following the provisions of FAS 71, Yankee Gas has recorded 
regulatory assets or liabilities as appropriate, primarily 
related to deferred gas costs, pipeline transition costs, 
hardship customer receivables, environmental cleanup costs, 
income taxes and postretirement benefit costs.  The specific 
amounts related to these items are disclosed in the 
consolidated balance sheets.  For additional information 
about these items see the 1998 Form 10-K.

Yankee Gas continues to be subject to cost-of-service based 
rate regulation by the DPUC.  Based upon current regulation 
and recent regulatory decisions, Yankee Gas believes that its 
use of regulatory accounting in accordance with the provisions 
of FAS 71 is appropriate and its regulatory assets are 
probable of recovery.


3) 	EARNINGS PER SHARE

The Company computes and presents basic and diluted earnings 
per share. The basic weighted average shares outstanding for 
the three months ended March 31, 1999 and 1998 were 
10,608,406 and 10,483,265, respectively, and for the six 
months ended March 31, 1999 and 1998 were 10,587,947 and 
10,472,510, respectively.  The diluted weighted average 
shares outstanding for the three months ended March 31, 1999 
and 1998 were 10,616,244 and 10,492,271, respectively, and 
for the six months ended March 31, 1999 and 1998 were 
10,601,952 and 10,479,491, respectively.  As such, there is 
no difference between basic and diluted earnings per share.

4) 	COMMITMENTS AND CONTINGENCIES

The Company faces a number of contingencies which arise 
during the normal course of business and which have been 
discussed in Note 9 (entitled "Commitments and 
Contingencies") to the Consolidated Financial Statements 
included in the Company's 1998 Form 10-K Report.  Except as 
 disclosed below, for the six months ended March 31, 1999, 
there have been no material changes in the matters discussed 
in Note 9 to the Company's 1998 Form 10-K Report.

YESCo Power Division: The Company's wholly-owned subsidiary, 
Yankee Energy Services Company (YESCo), is currently 
negotiating the sale of its more significant Power division 
investments with several interested parties. These 
investments include an operating land fill gas (LFG) fueled 
generating facility in Brookhaven, NY, interests in two 
operating cogeneration facilities, development stage 
projects and other less significant assets.  The total 
investment at March 31, 1999 is approximately $15.5 million. 
Management expects that the sale of the Power division 
assets will have no material effect on the Company's 
consolidated balance sheets. 

One of Yankee Gas' largest customers was the Foxwoods Hotel 
and Casino (Foxwoods) operated by the Mashantucket Pequot 
Indian Tribe (Pequots). The City of Norwich, Connecticut, 
pursuant to an agreement with the Pequots, became the sole 
provider of gas transportation service to the Pequots.  
Yankee Gas has made a claim against the Pequots for payment 
for distribution facilities, which Yankee Gas constructed 
pursuant to agreement with the Pequots, which claim seeks to 
compensate Yankee Gas for its investment. Yankee Gas has on-
reservation distribution facilities totaling approximately 
$0.4 million and off-reservation distribution facilities 
totaling approximately $4.9 million.  Yankee Gas is 
evaluating the Pequots' response to the claim in an effort 
to resolve the dispute consensually before any legal action 
is taken.

5)	FORWARD-LOOKING STATEMENTS

This report contains statements which, to the extent they 
are not recitations of historical fact, constitute "forward-
looking statements" within the meaning of Section 27A of the 
Securities Act of 1933, as amended, and Section 21E of the 
Securities Exchange Act of 1934, as amended.  When used in 
this report, the words "anticipate," "plan," "believe," 
"estimate," "expect," and similar expressions as they 
relate to the Company or its management are intended to 
identify forward-looking statements.  All forward-looking 
statements involve risks and uncertainties. Actual results 
may differ materially from those discussed in, or implied 
by, the forward-looking statements for reasons including, 
but not limited to, changes to and developments in the 
legislative and regulatory environments affecting the 
Company's business, the impact of competitive products and 
services, changes in the natural gas industry caused by 
deregulation and other factors, certain environmental 
matters and internal and/or third party delays or failures 
in achieving Year 2000 compliance, as well as such other 
factors as set forth in the Company's Form 10-K for the year 
ended September 30, 1998 and in other filings with the 
Securities and Exchange Commission.


6)	USE OF ESTIMATES

The preparation of financial statements in conformity with 
generally accepted accounting principles requires management 
to make estimates and assumptions that affect the reported 
amounts of assets and liabilities and disclosure of 
contingent assets and liabilities at the date of the 
financial statements and the reported amounts of revenues 
and expenses during the reporting period.  Actual results 
could differ from those estimates.

7)	RECLASSIFICATIONS

Certain prior year amounts have been reclassified to conform 
with current year presentation.





REPORT OF INDEPENDENT PUBLIC ACCOUNTANTS


To the Board of Directors and Shareholders of
Yankee Energy System, Inc.:


We have reviewed the accompanying consolidated balance sheet of 
Yankee Energy System, Inc. (a Connecticut corporation) and 
subsidiaries (the Company) as of March 31, 1999, and the related 
consolidated statements of income for the three- and six-month 
period then ended and cash flows for the six-month period then 
ended.  These financial statements are the responsibility of the 
Company's management.

We conducted our review in accordance with standards established 
by the American Institute of Certified Public Accountants.  A 
review of interim financial information consists principally of 
applying analytical procedures to financial data and making 
inquiries of persons responsible for financial and accounting 
matters.  It is substantially less in scope than an audit 
conducted in accordance with generally accepted auditing 
standards, the objective of which is the expression of an opinion 
regarding the financial statements taken as a whole.  
Accordingly, we do not express such an opinion.

Based on our review, we are not aware of any material 
modifications that should be made to the financial statements 
referred to above for them to be in conformity with generally 
accepted accounting principles.

We have previously audited, in accordance with generally accepted 
auditing standards, the consolidated balance sheet of Yankee 
Energy System, Inc. as of September 30, 1998 (not presented 
herein), and, in our report dated November 16, 1998, we expressed 
an unqualified opinion on that statement.  In our opinion, the 
information set forth in the accompanying consolidated balance 
sheet as of September 30, 1998 is fairly stated, in all material 
respects, in relation to the balance sheet from which it has been 
derived.

	                            Arthur Andersen LLP
Hartford, Connecticut
April 26, 1999



                                     
ITEM 2.	Management's Discussion and Analysis of Financial 
Condition and Results of Operations


RESULTS OF OPERATIONS

Consolidated net income was $11.5 million for the three months 
ended March 31, 1999, compared to $10.8 million for the same 
period a year earlier.  The corresponding basic and diluted 
earnings per share were $1.08 and $1.03 for the three months 
ended March 31, 1999 and 1998, respectively.

Earnings for the second quarter of fiscal year 1999 increased 
approximately five percent due to weather that was 15 percent 
colder than the same period last year.  Operating income 
increased 14 percent over the same period last year, partially 
offset by an increase in income taxes due to a higher effective 
tax rate.  This quarter's overall earnings were negatively 
impacted by two items.  First, weather again played a role by 
virtue of a seven percent warmer-than-normal quarter.  Management 
estimates that warmer weather reduced earnings by $1.4 million, 
or $0.13 per share.  The prior year's quarter experienced even 
warmer than normal weather with management estimating a weather-
related reduction to earnings of $3.9 million, or $0.38 per 
share.  Second, a metering problem with an industrial customer 
resulted in approximately $0.4 million in lost margin during the 
second quarter.  The prior year's quarter was also negatively 
impacted by customer bill credits of $0.9 million, or $0.09 per 
share, as part of a rate review settlement reached with the 
Connecticut Department of Public Utility Control. 

A favorable impact to this quarter's results was the continuing 
operations from nonutility subsidiaries, which performed at a 
break even level.  The recent financial performance at Yankee 
Energy Services Company (YESCo) reflects the cost reduction 
initiatives that have now been fully implemented. R. M. Services 
(RMS), our receivables management company, again positively 
contributed to quarterly results.  As a result of continuing 
growth for its collection services, RMS is completing a new call 
center in East Hartford, Connecticut, which is expected to be 
operational in the third quarter.


COMPARISON OF THE SECOND QUARTER OF FISCAL 1999 WITH THE SECOND 
QUARTER OF FISCAL 1998 


OPERATING REVENUES

Utility revenues increased $4.5 million, or 4 percent, in the 
second quarter of fiscal 1999 compared with the same period in 
the prior fiscal year. This increase was partially offset by a 
$0.3 million decrease in operating revenues from nonutility 
operations.  The components of the change in operating revenues 
are as follows: 



 
                              
                                  Three Months Ended
                                       March 31,        Increase/
                                 1999        1998      (Decrease)
(In thousands)

                                              
Firm sales                    $ 94,766       $ 92,853  $  1,913 
Firm transportation              8,801          5,419     3,382
Interruptible/off-system sales   4,923          5,409      (486)
Interruptible transportation       700            943      (243)
Other utility revenues           1,681          1,701       (20)
                               _______        _______    _______

Total Utility revenues         110,871        106,325     4,546 
Nonutility revenues              6,573          6,868      (295)
                               _______        _______    _______

Total operating revenues      $117,444       $113,193  $  4,251 
                               _______        _______    _______
                               _______        _______    _______
                         


The corresponding changes in Yankee Gas' throughput were as
follows:



                       Three Months Ended 
                           March 31,         Increase/
(Mcf - thousands)        1999      1998      (Decrease)  
 
                                    
Firm sales               10,229     9,902       327 
Firm transportation       4,116     3,008     1,108
Interruptible/
   off-system sales       1,468     1,228       240 
Interruptible 
   transportation           955     1,889      (934)   
                         _______   ______      _____ 
Total throughput         16,768    16,027       741 
                         _______   ______      _____ 
                         _______   ______      _____ 


                         
The change in utility revenues was due primarily to weather that 
was 15 percent colder than the prior year.  The colder weather in 
the second quarter of the fiscal 1999 heating season directly 
increased sales to firm sales customers.  However, this increase 
was partially offset by interruptible customers switching to 
alternative fuels as a result of continued lower oil prices.  The 
slight decrease in nonutility revenues in the second quarter of 
fiscal 1999 compared to the same period in fiscal 1998 is 
primarily due to the reorganization of YESCo's operations, offset 
by an increase in RMS' revenues due to expansion of its 
collection business.


OPERATING EXPENSES

Total operating expenses increased $1.0 million in the second 
quarter of fiscal 1999 compared to the same period in the prior 
year as a result of the following items:

- -	Cost of gas decreased $1.3 million, or 2 percent, for 
the three months ended March 31, 1999 compared to the three months 
ended March 31, 1998 due primarily to the continued shift of 
customers to transportation service, partially offset by an 
increase in costs due to additional firm sales.

- -	Cost of goods sold increased slightly in the second 
quarter of fiscal 1999 compared to the second quarter of fiscal 
1998 due to increased nonutility activity resulting primarily from 
an expansion of RMS'collection business, partially offset by the 
corresponding decrease in YESCo's revenues due to management's 
reorganization of YESCo. 

- -	Operations and maintenance expenses increased $1.5 
million, primarily due to increases in Yankee Gas expenses for 
pension, uncollectible accounts, and data center operations.  
These increases were offset by a slight decrease in nonutility 
expenses due to cost reduction initiatives implemented by YESCo.

- -	Depreciation and amortization expense increased $0.2 
million, primarily due to additions in plant, property 
and investments.

- -	Taxes other than income taxes increased $0.6 million, 
primarily due to higher Connecticut gross earnings taxes as a 
result of the increase in revenues.

INTEREST EXPENSE

Interest expense decreased $0.2 million primarily due to lower 
short-term debt outstanding.  This decrease was partially offset 
by an increase in long-term debt interest expense, primarily due 
to a $50 million new long-term debt financing completed in 
January 1999.

INCOME TAXES

Federal and state income taxes increased $2.6 million primarily 
due to higher pre-tax income and a higher effective tax rate for 
the three months ended March 31, 1999 compared to the three 
months ended March 31, 1998. The second quarter effective tax 
rate reflects a retroactive adjustment to the effective tax rate 
for the six months ended March 31, 1999.


COMPARISON OF THE FIRST SIX MONTHS OF FISCAL 1999 WITH THE FIRST 
SIX MONTHS OF FISCAL 1998 


OPERATING REVENUES

Utility revenues decreased $15.4 million, or 8 percent, in the 
first six months of fiscal 1999 compared with the same period in 
the prior fiscal year. This decrease was offset by a $2.0 million 
increase in operating revenues from nonutility operations.  The 
components of the change in operating revenues are as follows: 

                               	   
                                         

                 
                                  Six Months Ended
                                       March 31,        Increase/
                                 1999        1998      (Decrease)
(In thousands)

                                              
Firm sales                    $158,596       $175,358  $(16,762)
Firm transportation             15,799          9,938     5,861
Interruptible/off-system sales   9,613         13,459    (3,846)
Interruptible transportation     1,605          1,488       117
Other utility revenues           2,440          3,200      (760)
                               _______        _______    _______

Total utility revenues         188,053        203,443   (15,390)
Nonutility revenues             14,392         12,345     2,047
                               _______        _______    _______

Total operating revenues      $202,445       $215,788  $(13,343)
                               _______        _______    _______
                               _______        _______    _______
                         



                                           
The corresponding changes in Yankee Gas' throughput were as
follows:





                        Six Months Ended
                           March 31,         Increase/
(Mcf - thousands)        1999      1998      (Decrease)   

                                    
Firm sales               17,322    19,254    (1,932)
Firm transportation       7,298     5,257     2,041
Interruptible/
   off-system sales       2,801     2,994      (193)
Interruptible 
   transportation         2,329     3,216      (887)   
                         ______    ______      ______
Total throughput         29,750    30,721      (971)
                         ______    ______      ______
                         ______    ______      ______


                         
The change in utility revenues was due to a combination of items 
directly related to warmer than normal weather experienced over 
the past two heating seasons. Firm sales continue to decrease as 
an increasing number of commercial and industrial customers 
continued to shift from gas sales to transportation service 
resulting in a decrease in utility revenues.  The switch to 
transportation has no effect on margin because the cost of gas 
has traditionally been a pass through item.  Interruptible 
revenues decreased primarily as a result of lower oil prices in 
the first six months of fiscal 1999 compared to the same period 
in the prior year, which enabled these customers to use a less 
costly alternative fuel.  These decreases were partially offset 
by an increase in nonutility revenues in the second quarter of 
fiscal 1999 compared to the same period in fiscal 1998.  This 
increase was primarily due to an increase in R.M. Services' 
revenues due to expansion of its collection business, offset by a 
slight decrease in YESCo's revenues due to management's 
reorganization of YESCo.


OPERATING EXPENSES

Total operating expenses decreased $12.3 million in the first six 
months of fiscal 1999 compared with the same period in the prior 
year as a result of the following items:

- -	Cost of gas decreased $16.6 million, or 15 percent, for 
the six months ended March 31, 1999 compared to the six months 
ended March 31, 1998 due primarily to the weather impact on firm 
sales customers and the continued increase in transportation 
customers.
  
- -	Cost of goods sold increased $1.8 million in the first 
six months of fiscal 1999 compared to the first six months of 
fiscal 1998 due to expansion of R.M. Services' collection 
business, partially offset by the corresponding decrease in 
YESCo's revenues due to management's reorganization of YESCo.

- -	Operations and maintenance expenses increased $1.2 
million, primarily due to increases in data center operation 
expense, expenses related to nonutility activity, uncollectible 
expense and pension expenses.  
 
- -	Depreciation and amortization expense increased $0.6 
million, primarily due to additions in plant, property 
and investments.	
	
- -	Taxes other than income taxes increased $0.8 million, 
primarily due to increases in Connecticut unemployment taxes and 
municipal taxes in fiscal 1999.

INTEREST EXPENSE

Interest expense increased $0.3 million mainly due to higher 
short-term debt outstanding during the six months ended March 31, 
1999 and higher interest on long-term debt, primarily due to a 
$50 million new long-term debt financing completed in January 
1999. 

INCOME TAXES

Federal and state income taxes decreased $1.0 million primarily 
due to lower pre-tax income for the six months ended March 31, 
1999 compared to the six months ended March 31, 1998, partially 
offset by a slight increase in the effective tax rate.  


LIQUIDITY AND CAPITAL RESOURCES


Cash and temporary cash investments at March 31, 1999 totaled 
$11.0 million. Cash provided by operating activities was $38.9 
million in the second quarter of fiscal 1999.  The increase in 
cash provided by operating activities was primarily due to a 
decrease in working capital requirements.  The Company also 
generated cash through financing activities, primarily by the 
issuance of new common stock and issuance of long-term debt.  
Cash from operating activities and financing activities was used 
primarily for repayments of short-term debt, dividend payments 
and capital expenditures in the first six months of fiscal 1999. 
Expenditures for investment in plant, property and investments 
totaled $13.8 million for the first six months of fiscal 1999.

The seasonal nature of gas revenues, inventory purchases and 
construction expenditures creates a need for short-term borrowing 
to supplement internally generated funds.  As of March 31, 1999, 
Yankee Gas had a revolving line of credit of $60 million with a 
group of four banks.  Under the agreement, funds may be borrowed 
on a short-term revolving basis using either fixed or variable 
rate loans.  Yankee Gas also had uncommitted credit lines of $20 
million as of March 31, 1999.  At March 31, 1999, Yankee Gas had 
no amounts outstanding under its agreements.  Yankee Energy had 
$16.5 million outstanding at March 31, 1999 under its $25 million 
committed line of credit, which is used to fund development of 
the Company's nonutilty businesses.  In January 1999, Yankee Gas 
completed a $50 million new long-term debt financing at 6.2 
percent, for the purposes of replacing a portion of the existing 
outstanding short-term debt.  Yankee Gas plans to redeem its 
Series A Tranche D First Mortgage Bonds in August 1999, with cash 
on hand and short-term debt available at that time. Series A 
Trance D First Mortgage Bonds become eligible for early 
redemption in August 1999.

The long-term credit needs of Yankee Gas are being met by a first 
mortgage bond indenture which provides for the issuance of bonds 
from time to time, subject to certain issuance tests.  At March 
31, 1999, indenture requirements, including the required coverage 
ratio, would allow for the issuance of an additional $174 million 
of bonds at an assumed interest rate of 6.6 percent.

Yankee Gas has entered into fixed revenue-rate contracts with two 
customers for the delivery of natural gas.  Yankee Gas has hedged 
these commitments with the purchase of natural gas swaps.  In 
order to satisfy certain provisions of the arrangement, Yankee 
Gas has provided a letter of credit for $1.75 million, as of 
March 31, 1999.  The Company's results of operations are 
unaffected by the hedge transaction given that it passes through 
the cost of the hedge to either the commodity trading firm or its 
customer depending on the difference in the fixed and floating 
prices for gas.

The Company entered into an interest rate swap transaction in 
February 1999.  The $49,000,000 (notional amount) agreement had 
the effect of converting the interest obligations on Yankee Gas' 
$19,000,000, 10.07% Bonds and $30,000,000, 7.19% Bonds to 
variable rates.  Under the agreement, the Company receives the 
stated fixed rate and pays a floating rate based on a "basket" 
of interest rate indices, as determined in six month intervals.  
Net receipts or payments under the agreement are recognized as 
adjustments to interest expense.


YEAR 2000

The Company is currently implementing new information systems and 
enhancing existing information systems to address Year 2000 
issues, which could have significant adverse effects on the 
Company if not properly resolved.  In fiscal 1995, the Company 
began testing and remediation for Year 2000 problems and has 
assigned dedicated personnel to its Year 2000 project.  
Remediated programs are being tested prior to being declared 
compliant.

As of March 31, 1999, YES has completed the inventory and the 
assessment of risk phases of the Year 2000 project for all 
mainframe systems.  The Company is currently in the remediation 
and testing phases.  As part of the process, a detailed inventory 
of all hardware and software currently utilized by the Company 
has been prepared, and a timetable has been established to ensure 
testing of all applications.  The scope of the assessment phase 
also included the Company's interface systems with significant 
suppliers, government agencies and other third parties.  However, 
there can be no guarantee that the systems of these third parties 
will be converted on a timely basis and will not have an adverse 
effect on the Company's operations or systems. 

All mainframe systems that are being remediated are now in the 
implementation phase, which as of March 31, 1999 was 
approximately 98 percent complete.  In addition to remediating 
existing systems, the Company purchased a new human resource 
information system (HRIS) and a new customer service (CS) system. 
These systems were purchased to improve functionality of the 
application software and to improve efficiency and customer 
service.  In addition, any Year 2000 issues associated with these 
systems will be eliminated.  The new HRIS system became 
operational January 1, 1999 and the new CS system is expected to 
be operational in July 1999.   

For non-mainframe systems, the Company has developed a test 
environment to carry out the remainder of the remediation 
program.  The inventory and risk assessment phase of all non-
mainframe systems has been completed. The completion of the 
remediation/replacement and testing phases is expected by 
September 1999.  As of March 31, 1999, the Company installed a 
new supervisory control and data acquisition system (SCADA 
system), which monitors gas flows and pressures within the gas 
distribution system.  This eliminated any Year 2000 issues 
associated within that system. 

The Company currently estimates that total cost to update all of 
the Company's systems for Year 2000 compliance will be 
approximately $21.8 million, including approximately $0.6 million 
for the new HRIS system, $19.4 million for the new CS system and 
$1.3 million for the new SCADA system.  All such costs associated 
with system enhancements have and will continue to be expensed as 
incurred and the costs of new systems will be capitalized as 
appropriate.  As of March 31, 1999, the Company expensed 
approximately $0.5 million and capitalized approximately $19.0 
million, of these costs.  The remaining costs will be incurred 
during fiscal 1999.  These costs have been financed through 
short-term borrowing and internally generated funds.

The primary business risk associated with Year 2000 is the 
Company's ability to continue to transport and distribute gas to 
its customers without interruption.  In the event the Company 
and/or its suppliers and vendors are unable to remediate the Year 
2000 problem prior to January 1, 2000, operations of the Company 
could be significantly impacted.  In order to mitigate this risk, 
the Company is developing contingency plans to continue 
operations through manual intervention and other procedures 
should it become necessary to do so.  Such procedures are 
expected to include back-up power supply for its critical 
pipeline and storage operations and, if necessary, curtailment of 
supply.  The Company expects to complete its operational 
contingency plans by the end of fiscal 1999.

Although the Company expects its systems to be Year 2000 
compliant on or before December 31, 1999, it cannot predict the 
outcome or the success of its Year 2000 program, or that the 
costs required to address the Year 2000 issue, or that the impact 
of a failure to achieve substantial Year 2000 compliance, will 
not have a material adverse effect on the Company's business, 
financial condition or results of operations.


ITEM 3.  Quantitative and Qualitative Disclosures About Market 
Risk

Commodity Market Risk

Yankee Gas is subject to market risk due to fluctuations in the 
price of natural gas.  All of Yankee Gas' sales are designed to 
fully recover the cost of gas.  Yankee Gas passes on to its firm 
customers changes in gas costs from those reflected in its 
tariffs under purchased gas adjustment provisions allowed by the 
Connecticut Department of Public Utility Control.  Interruptible 
and off-system sales are priced competitively at not less than 
the cost of gas associated with those sales plus applicable taxes 
and margin. 

Yankee Gas has entered into fixed revenue-rate contracts with two 
customers for the delivery of natural gas.  Yankee Gas has hedged 
these commitments with the purchase of natural gas swaps.  In 
order to satisfy certain provisions of the arrangement, Yankee 
Gas has provided a letter of credit for $1.75 million, as of 
March 31, 1999.  The Company's results of operations are 
unaffected by the hedge transaction given that it passes through 
the cost of the hedge to either the commodity trading firm or its 
customer depending on the difference in the fixed and floating 
prices for gas.

Interest Rate Risk

The Company entered into an interest rate swap transaction in 
February 1999.  The $49,000,000 (notional amount) agreement had 
the effect of converting the interest obligations on Yankee Gas' 
$19,000,000, 10.07% Bonds and $30,000,000, 7.19% Bonds to 
variable rates.  Under the agreement, the Company receives the 
stated fixed rate and pays a floating rate based on a "basket" 
of interest rate indices, as determined in six month intervals.  
Net receipts or payments under the agreement are recognized as 
adjustments to interest expense.  The maximum exposure to the 
Company is $250,000 per year.

In addition, both Yankee Energy and Yankee Gas have committed and 
uncommitted lines of credit with variable interest rates.


PART 	II	OTHER INFORMATION

Item 4. Submission of Matters to a Vote of Security Holders

The Annual Meeting of the Shareholders of the Company was held on 
January 29, 1999.  At the Annual Meeting, the shareholders elected 
Sanford Cloud, Jr. and John J. Rando as directors to three year 
terms expiring at the 2001 Annual Meeting of Shareholders.  There 
were 8,850,119 votes for and 156,466 votes against for Mr. Cloud 
and 8,852,264 votes for and 154,321 votes against for Mr. Rando.  
The shareholders also ratified the appointment by the Board of 
Directors of Arthur Andersen LLP as the Company's independent 
auditors for the fiscal year ending September 30, 1999.  There 
were 8,734,272 votes for, 185,544 votes against and 86,769 
abstentions with respect to such ratification.

Item 6.	Exhibits and Reports on Form 8-K

		a.	Exhibits

			Exhibit 4.1 - Bond Purchase Agreement dated January 
			1, 1999between Yankee Gas and the Purchasers 	
			identified therein. 

			Exhibit 4.2 - Fifth Supplemental Indenture of 	
			Mortgage and of Trust dated January 1, 1999 between 
			Yankee Gas and The Bank of New York as trustee.

			Exhibit 27 - Financial Data Schedule.

		b.	Reports on Form 8-K

			None.





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.


                                   YANKEE ENERGY SYSTEM, INC.
                                   ___________________________
                                        (Registrant)


Date: May 12, 1999                 /s/ James M. Sepanski
                                  ____________________________
                                   James M. Sepanski
                                   Vice President,
                                   Chief Financial Officer
                                   and Treasurer                 

      
                                                                 

   



Date: May 12, 1999                 /s/ Nicholas A. Rinaldi
                                  _____________________________
                                   Nicholas A. Rinaldi
                                   Controller