W. R. Berkley Corporation Reports Fourth Quarter Results
Released : 02/02/2016
Operating Income of $115 Million, Operating Return on Equity of 10.0%
GREENWICH, Conn.--(BUSINESS WIRE)--
W. R. Berkley Corporation (NYSE:WRB) today reported operating
income for the fourth quarter of 2015 of $115 million, or $0.89 per
share.
Summary Financial Data (Amounts in thousands, except per share data) |
|
|
|
|
Fourth Quarter
|
|
Full Year
|
| |
2015
|
|
2014
| |
2015
|
|
2014
|
| | | | | | | |
|
|
Gross premiums written
| |
$
|
1,764,209
| | |
$
|
1,705,814
| | |
$
|
7,249,993
| | |
$
|
7,062,838
| |
|
Net premiums written
| |
1,499,151
| | |
1,455,909
| | |
6,189,515
| | |
5,996,947
| |
| | | | | | | |
|
|
Net income
| |
109,745
| | |
110,711
| | |
503,694
| | |
648,884
| |
|
Net income per diluted share
| |
0.85
| | |
0.83
| | |
3.87
| | |
4.86
| |
| | | | | | | |
|
|
Operating income (1)
| |
115,062
| | |
97,274
| | |
443,683
| | |
483,230
| |
|
Operating income per diluted share
| |
0.89
| | |
0.73
| | |
3.41
| | |
3.62
| |
| | | | | | | |
|
|
Net income return on equity (2)
| |
9.6
|
%
| |
10.2
|
%
| |
11.0
|
%
| |
15.0
|
%
|
|
Operating income return on equity (2)
| |
10.0
|
%
| |
9.0
|
%
| |
9.7
|
%
| |
11.1
|
%
|
(1) Operating income is a non-GAAP financial measure defined by the
Company as net income excluding after-tax net investment gains.
(2) Return on equity represents net income and operating income
expressed on an annualized basis as a percentage of beginning of year
stockholders’ equity.
Fourth quarter highlights included:
-
Operating income per share increased 22%.
-
Insurance-Domestic net premiums written grew 8%.
-
Investment income was up 12%.
-
GAAP combined ratio was 93.1%.
-
Pre-tax return on equity was 13.6%.
The Company commented: We were pleased with our operating results in
both the fourth quarter and full year 2015. Our combined ratio for the
quarter was 93.1% and our investment results were more than satisfactory
given the conservative risk profile of our portfolio. We continue to
focus on managing risk and volatility throughout the business.
Maintaining a consistent and stable risk-adjusted return has enabled us
to deliver superior value creation to our shareholders over the long
term.
Written premium growth in the domestic insurance segment was strong,
especially in the fourth quarter. Overall, due to the strong dollar,
foreign currency translations reduced our total premium growth by 1.5%
for both the quarter and the year. We are confident our unique
specialist approach and various market dislocations will provide us with
greater opportunities in the coming year.
We maintain a cautious approach to reserves due to the potential for
inflation. Consequently, our loss reserves continue to develop favorably
and our accident-year loss ratio, excluding catastrophes, has been
stable. The domestic insurance expense ratio is generally satisfactory,
and there are opportunities for further improvement in our international
expense ratio.
Our investment portfolio is very high quality, with an average rating of
AA-, and ample liquidity. We have modest exposure to the oil industry,
the vast majority of which is in investment grade securities. The
after-tax exposure to the oil industry for our investment funds is less
than half of one percent of our invested assets.
We believe we are well positioned for the current environment and have
the flexibility to manage whatever the future presents. In spite of the
various uncertainties in the insurance and investment markets, we are
positive about our future and foresee better returns for 2016.
Webcast Conference Call
The Company will hold its quarterly conference call with analysts and
investors to discuss its earnings and other information on Tuesday,
February 2, 2016 at 5:00 p.m. eastern time. The conference call will be
webcast live on the Company's website at www.wrberkley.com.
A replay of the webcast will be available on the Company's website
approximately two hours after the end of the conference call.
About W. R. Berkley Corporation
Founded in 1967, W. R. Berkley Corporation is an insurance holding
company that is among the largest commercial lines writers in the United
States and operates in three segments of the property casualty business:
Insurance-Domestic, Insurance-International and Reinsurance-Global.
Forward Looking Information
This is a “Safe Harbor” Statement under the Private Securities
Litigation Reform Act of 1995. Any forward-looking statements contained
herein, including statements related to our outlook for the industry and
for our performance for the year 2016 and beyond, are based upon the
Company’s historical performance and on current plans, estimates and
expectations. The inclusion of this forward-looking information should
not be regarded as a representation by us or any other person that the
future plans, estimates or expectations contemplated by us will be
achieved. They are subject to various risks and uncertainties, including
but not limited to: the cyclical nature of the property casualty
industry; the impact of significant competition, including new
alternative entrants to the industry; the long-tail and potentially
volatile nature of the insurance and reinsurance business; product
demand and pricing; claims development and the process of estimating
reserves; investment risks, including those of our portfolio of fixed
maturity securities and investments in equity securities, including
investments in financial institutions, municipal bonds, mortgage-backed
securities, loans receivable, investment funds, including real estate,
merger arbitrage, energy related and private equity investments; the
effects of emerging claim and coverage issues; the uncertain nature of
damage theories and loss amounts; natural and man-made catastrophic
losses, including as a result of terrorist activities; general economic
and market activities, including inflation, interest rates, and
volatility in the credit and capital markets; the impact of the
conditions in the financial markets and the global economy, and the
potential effect of legislative, regulatory, accounting or other
initiatives taken in response to it, on our results and financial
condition; foreign currency and political risks relating to our
international operations; our ability to attract and retain key
personnel and qualified employees; continued availability of capital and
financing; the success of our new ventures or acquisitions and the
availability of other opportunities; the availability of reinsurance;
our retention under the Terrorism Risk Insurance Act of 2002, as amended
("TRIA"); the ability of our reinsurers to pay reinsurance recoverables
owed to us; other legislative and regulatory developments, including
those related to business practices in the insurance industry; credit
risk related to our policyholders, independent agents and brokers;
changes in the ratings assigned to us or our insurance company
subsidiaries by rating agencies; the availability of dividends from our
insurance company subsidiaries; potential difficulties with technology
and/or data security; the effectiveness of our controls to ensure
compliance with guidelines, policies and legal and regulatory standards;
and other risks detailed from time to time in the Company’s filings with
the Securities and Exchange Commission. These risks and uncertainties
could cause our actual results for the year 2016 and beyond to differ
materially from those expressed in any forward-looking statement we
make. Any projections of growth in our revenues would not necessarily
result in commensurate levels of earnings. Forward-looking statements
speak only as of the date on which they are made, and the Company
undertakes no obligation to update publicly or revise any
forward-looking statement, whether as a result of new information,
future developments or otherwise.
Consolidated Financial Summary (Amounts in thousands, except per share data) |
|
|
|
|
Fourth Quarter
|
|
Full Year
|
| |
2015
|
|
2014
| |
2015
|
|
2014
|
|
Revenues:
| | | | | | | | |
|
Net premiums written
| |
$
|
1,499,151
| | |
$
|
1,455,909
| | |
$
|
6,189,515
| | |
$
|
5,996,947
| |
|
Change in unearned premiums
| |
44,846
|
| |
46,448
|
| |
(148,906
|
)
| |
(252,529
|
)
|
|
Net premiums earned
| |
1,543,997
| | |
1,502,357
| | |
6,040,609
| | |
5,744,418
| |
|
Investment income
| |
127,609
| | |
114,220
| | |
512,645
| | |
600,885
| |
|
Insurance service fees
| |
31,788
| | |
35,473
| | |
139,440
| | |
117,443
| |
Net realized gains on investment sales
| |
12,613
| | |
20,672
| | |
125,633
| | |
254,852
| |
|
Other-than-temporary impairments
| |
(20,794
|
)
| |
—
| | |
(33,309
|
)
| |
—
| |
|
Revenues from wholly-owned investees
| |
115,841
| | |
111,329
| | |
421,102
| | |
410,022
| |
|
Other income
| |
2
|
| |
377
|
| |
337
|
| |
1,308
|
|
|
Total revenues
| |
1,811,056
|
| |
1,784,428
|
| |
7,206,457
|
| |
7,128,928
|
|
|
Expenses:
| | | | | | | | |
|
Losses and loss expenses
| |
922,972
| | |
913,571
| | |
3,656,270
| | |
3,490,567
| |
|
Other operating costs and expenses
| |
591,581
| | |
563,837
| | |
2,289,750
| | |
2,157,456
| |
|
Expenses from wholly-owned investees
| |
108,561
| | |
109,712
| | |
397,461
| | |
400,535
| |
|
Interest expense
| |
31,736
|
| |
34,604
|
| |
130,946
|
| |
128,174
|
|
|
Total expenses
| |
1,654,850
|
| |
1,621,724
|
| |
6,474,427
|
| |
6,176,732
|
|
|
Income before income taxes
| |
156,206
| | |
162,704
| | |
732,030
| | |
952,196
| |
|
Income tax expense
| |
(46,328
|
)
| |
(51,753
|
)
| |
(227,923
|
)
| |
(302,593
|
)
|
|
Net income before noncontrolling interests
| |
109,878
| | |
110,951
| | |
504,107
| | |
649,603
| |
|
Noncontrolling interests
| |
(133
|
)
| |
(240
|
)
| |
(413
|
)
| |
(719
|
)
|
|
Net income to common stockholders
| |
$
|
109,745
|
| |
$
|
110,711
|
| |
$
|
503,694
|
| |
$
|
648,884
|
|
| | | | | | | |
|
|
Net income per share:
| | | | | | | | |
|
Basic
| |
$
|
0.89
| | |
$
|
0.87
| | |
$
|
4.06
| | |
$
|
5.07
| |
|
Diluted
| |
$
|
0.85
| | |
$
|
0.83
| | |
$
|
3.87
| | |
$
|
4.86
| |
| | | | | | | |
|
|
Average shares outstanding:
| | | | | | | | |
|
Basic
| |
123,287
| |
126,830
| |
124,040
| |
127,874
|
|
Diluted
| |
129,016
| |
132,879
| |
130,189
| |
133,652
|
Business Segment Operating Results (Amounts in thousands, except ratios) (1) |
|
|
|
|
Fourth Quarter
|
|
Full Year
|
| |
2015
|
|
2014
| |
2015
|
|
2014
|
|
Insurance-Domestic:
| | | | | | | | |
|
Gross premiums written
| |
$
|
1,395,146
| | |
$
|
1,295,927
| | |
$
|
5,684,188
| | |
$
|
5,383,679
| |
|
Net premiums written
| |
1,167,871
| | |
1,084,784
| | |
4,812,830
| | |
4,517,587
| |
|
Net premiums earned
| |
1,200,241
| | |
1,133,127
| | |
4,659,359
| | |
4,271,933
| |
|
Pre-tax income
| |
190,266
| | |
188,910
| | |
724,667
| | |
796,309
| |
|
Loss ratio
| |
60.4
|
%
| |
60.2
|
%
| |
61.2
|
%
| |
60.2
|
%
|
|
Expense ratio
| |
31.2
|
%
| |
30.4
|
%
| |
31.2
|
%
| |
31.6
|
%
|
|
GAAP combined ratio
| |
91.6
|
%
| |
90.6
|
%
| |
92.4
|
%
| |
91.8
|
%
|
| | | | | | | |
|
|
Insurance-International:
| | | | | | | | |
|
Gross premiums written
| |
$
|
209,743
| | |
$
|
236,632
| | |
$
|
923,304
| | |
$
|
984,271
| |
|
Net premiums written
| |
184,982
| | |
208,051
| | |
778,567
| | |
828,076
| |
|
Net premiums earned
| |
189,100
| | |
209,654
| | |
772,141
| | |
802,375
| |
|
Pre-tax income (loss)
| |
10,579
| | |
(12,081
|
)
| |
51,926
| | |
29,779
| |
|
Loss ratio
| |
58.2
|
%
| |
68.2
|
%
| |
58.2
|
%
| |
62.8
|
%
|
|
Expense ratio
| |
41.5
|
%
| |
40.2
|
%
| |
41.4
|
%
| |
40.0
|
%
|
|
GAAP combined ratio
| |
99.7
|
%
| |
108.4
|
%
| |
99.6
|
%
| |
102.8
|
%
|
| | | | | | | |
|
|
Reinsurance-Global:
| | | | | | | | |
|
Gross premiums written
| |
$
|
159,320
| | |
$
|
173,255
| | |
$
|
642,501
| | |
$
|
694,888
| |
|
Net premiums written
| |
146,298
| | |
163,074
| | |
598,118
| | |
651,284
| |
|
Net premiums earned
| |
154,656
| | |
159,576
| | |
609,109
| | |
670,110
| |
|
Pre-tax income
| |
25,055
| | |
28,732
| | |
94,852
| | |
115,677
| |
|
Loss ratio
| |
57.1
|
%
| |
55.2
|
%
| |
58.4
|
%
| |
62.0
|
%
|
|
Expense ratio
| |
39.4
|
%
| |
37.3
|
%
| |
38.2
|
%
| |
34.0
|
%
|
|
GAAP combined ratio
| |
96.5
|
%
| |
92.5
|
%
| |
96.6
|
%
| |
96.0
|
%
|
| | | | | | | |
|
|
Corporate and Eliminations:
| | | | | | | | |
Net investment gains (losses)
| |
$
|
(8,181
|
)
| |
$
|
20,672
| | |
$
|
92,324
| | |
$
|
254,852
| |
|
Interest expense
| |
(31,736
|
)
| |
(34,604
|
)
| |
(130,946
|
)
| |
(128,174
|
)
|
|
Other revenues and expenses
| |
(29,777
|
)
| |
(28,925
|
)
| |
(100,793
|
)
| |
(116,247
|
)
|
|
Pre-tax gain (loss)
| |
(69,694
|
)
| |
(42,857
|
)
| |
(139,415
|
)
| |
10,431
| |
| | | | | | | |
|
|
Consolidated:
| | | | | | | | |
|
Gross premiums written
| |
$
|
1,764,209
| | |
$
|
1,705,814
| | |
$
|
7,249,993
| | |
$
|
7,062,838
| |
|
Net premiums written
| |
1,499,151
| | |
1,455,909
| | |
6,189,515
| | |
5,996,947
| |
|
Net premiums earned
| |
1,543,997
| | |
1,502,357
| | |
6,040,609
| | |
5,744,418
| |
|
Pre-tax income
| |
156,206
| | |
162,704
| | |
732,030
| | |
952,196
| |
|
Loss ratio
| |
59.8
|
%
| |
60.8
|
%
| |
60.5
|
%
| |
60.8
|
%
|
|
Expense ratio
| |
33.3
|
%
| |
32.5
|
%
| |
33.2
|
%
| |
33.0
|
%
|
|
GAAP combined ratio
| |
93.1
|
%
| |
93.3
|
%
| |
93.7
|
%
| |
93.8
|
%
|
(1) Loss ratio is losses and loss expenses incurred expressed as a
percentage of premiums earned. Expense ratio is underwriting expenses
expressed as a percentage of premiums earned. GAAP combined ratio is the
sum of the loss ratio and the expense ratio.
Supplemental Information (Amounts in thousands) |
|
|
|
|
Fourth Quarter
|
|
Full Year
|
| |
2015
|
|
2014
| |
2015
|
|
2014
|
|
Insurance-Domestic net premiums written:
| | | | | | | | |
|
Other liability
| |
$
|
411,691
| | |
$
|
378,009
| | |
$
|
1,623,710
| | |
$
|
1,536,105
| |
|
Workers' compensation
| |
297,936
| | |
263,844
| | |
1,311,303
| | |
1,193,493
| |
|
Short-tail lines (1)
| |
221,103
| | |
217,915
| | |
933,726
| | |
913,258
| |
|
Commercial automobile
| |
129,426
| | |
141,293
| | |
541,426
| | |
547,128
| |
|
Professional liability
| |
107,715
|
| |
83,723
|
| |
402,665
|
| |
327,603
|
|
|
Total
| |
$
|
1,167,871
|
| |
$
|
1,084,784
|
| |
$
|
4,812,830
|
| |
$
|
4,517,587
|
|
| | | | | | | |
|
|
Losses from catastrophes:
| | | | | | | | |
|
Insurance-Domestic
| |
$
|
8,662
| | |
$
|
6,392
| | |
$
|
49,880
| | |
$
|
64,937
| |
|
Insurance-International
| |
1,904
| | |
11,495
| | |
4,385
| | |
20,062
| |
|
Reinsurance-Global
| |
587
|
| |
528
|
| |
3,343
|
| |
2,076
|
|
|
Total
| |
$
|
11,153
|
| |
$
|
18,415
|
| |
$
|
57,608
|
| |
$
|
87,075
|
|
| | | | | | | |
|
|
Investment income:
| | | | | | | | |
|
Core portfolio (2)
| |
$
|
110,798
| | |
$
|
107,937
| | |
$
|
433,526
| | |
$
|
446,862
| |
|
Investment funds
| |
11,390
| | |
(3,647
|
)
| |
62,228
| | |
131,585
| |
|
Arbitrage trading account
| |
5,421
|
| |
9,930
|
| |
16,891
|
| |
22,438
|
|
|
Total
| |
$
|
127,609
|
| |
$
|
114,220
|
| |
$
|
512,645
|
| |
$
|
600,885
|
|
| | | | | | | |
|
|
Other operating costs and expenses:
| | | | | | | | |
|
Underwriting expenses
| |
$
|
514,389
| | |
$
|
488,920
| | |
$
|
2,005,498
| | |
$
|
1,896,528
| |
|
Service expenses
| |
34,051
| | |
33,597
| | |
127,365
| | |
102,727
| |
|
Net foreign currency losses (gains)
| |
3,634
| | |
991
| | |
400
| | |
(27
|
)
|
|
Other costs and expenses
| |
39,507
|
| |
40,329
|
| |
156,487
|
| |
158,228
|
|
|
Total
| |
$
|
591,581
|
| |
$
|
563,837
|
| |
$
|
2,289,750
|
| |
$
|
2,157,456
|
|
| | | | | | | |
|
|
Cash flow from operations
| |
$
|
260,969
| | |
$
|
89,061
| | |
$
|
881,304
| | |
$
|
734,847
| |
| | | | | | | |
|
|
Reconciliation of operating and net income:
| | | | | | | | |
|
Operating income (3)
| |
$
|
115,062
| | |
$
|
97,274
| | |
$
|
443,683
| | |
$
|
483,230
| |
|
After-tax investment (losses) gains
| |
(5,317
|
)
| |
13,437
|
| |
60,011
|
| |
165,654
|
|
|
Net income
| |
$
|
109,745
|
| |
$
|
110,711
|
| |
$
|
503,694
|
| |
$
|
648,884
|
|
(1) Short-tail lines include commercial multi-peril (non-liability),
inland marine, accident and health, fidelity and surety, boiler and
machinery and other lines.
(2) Core portfolio includes fixed maturity securities, equity
securities, cash and cash equivalents, real estate and loans receivable.
(3) Operating income is a non-GAAP financial measure defined by the
Company as net income excluding after-tax net investment gains.
Management believes that excluding net investment gains provides a
useful indicator of trends in the Company’s underlying operations.
Selected Balance Sheet Information (Amounts in thousands, except per share data) |
|
|
|
|
December 31, 2015
|
|
December 31, 2014
|
| | | |
|
|
Net invested assets (1)
| |
$
|
16,460,690
| | |
$
|
16,508,087
|
|
Total assets
| |
21,730,967
| | |
21,716,691
|
|
Reserves for losses and loss expenses
| |
10,669,150
| | |
10,369,701
|
|
Senior notes and other debt
| |
1,844,621
| | |
2,115,527
|
|
Subordinated debentures
| |
340,320
| | |
340,060
|
|
Common stockholders’ equity (2)
| |
4,600,246
| | |
4,589,945
|
|
Common stock outstanding (3)
| |
123,308
| | |
126,749
|
|
Book value per share (4)
| |
37.31
| | |
36.21
|
|
Tangible book value per share (4)
| |
35.78
| | |
34.79
|
(1) Net invested assets include investments, cash and cash equivalents,
trading accounts receivable from brokers and clearing organizations,
trading account securities sold but not yet purchased and unsettled
purchases, net of related liabilities.
(2) After-tax unrealized investment gains were $181 million and $306
million as of December 31, 2015 and December 31, 2014, respectively.
Unrealized currency translation losses were $247 million and $123
million as of December 31, 2015 and December 31, 2014, respectively.
(3) During the full year 2015, the Company repurchased 4,502,025 shares
of its common stock for $224 million.
(4) Book value per share is total common stockholders’ equity divided by
the number of common shares outstanding. Tangible book value per share
is total common stockholders’ equity excluding the after-tax value of
goodwill and other intangible assets divided by the number of common
shares outstanding.
Investment Portfolio December 31, 2015 (Amounts in thousands) |
|
|
|
|
Carrying
Value
|
|
Percent
of Total
|
| | | |
|
|
Fixed maturity securities:
| | | | |
| United States government and government agencies
| |
$
|
670,419
| | |
4.1
|
%
|
|
State and municipal:
| | | | |
|
Special revenue
| |
2,632,626
| | |
16.0
|
%
|
|
State general obligation
| |
641,790
| | |
3.9
|
%
|
|
Pre-refunded
| |
472,697
| | |
2.9
|
%
|
|
Corporate backed
| |
402,541
| | |
2.4
|
%
|
|
Local general obligation
| |
387,654
|
| |
2.3
|
%
|
|
Total state and municipal
| |
4,537,308
|
| |
27.5
|
%
|
|
Mortgage-backed securities:
| | | | |
|
Agency
| |
855,195
| | |
5.2
|
%
|
|
Residential - Prime
| |
245,611
| | |
1.5
|
%
|
|
Commercial
| |
65,722
| | |
0.4
|
%
|
|
Residential - Alt A
| |
52,469
|
| |
0.3
|
%
|
|
Total mortgage-backed securities
| |
1,218,997
|
| |
7.4
|
%
|
|
Asset-backed securities
| |
1,705,172
| | |
10.4
|
%
|
|
Corporate:
| | | | |
|
Industrial
| |
2,021,534
| | |
12.3
|
%
|
|
Financial
| |
1,173,021
| | |
7.1
|
%
|
|
Utilities
| |
198,651
| | |
1.2
|
%
|
|
Other
| |
81,832
|
| |
0.5
|
%
|
|
Total corporate
| |
3,475,038
|
| |
21.1
|
%
|
|
Foreign government
| |
837,460
|
| |
5.1
|
%
|
|
Total fixed maturity securities (1)
| |
12,444,394
|
| |
75.6
|
%
|
|
Equity securities available for sale:
| | | | |
|
Preferred stocks
| |
113,593
| | |
0.7
|
%
|
|
Common stocks
| |
37,273
|
| |
0.2
|
%
|
|
Total equity securities available for sale
| |
150,866
|
| |
0.9
|
%
|
|
Investment funds (2)
| |
1,167,839
| | |
7.1
|
%
|
|
Arbitrage trading account
| |
376,697
| | |
2.3
|
%
|
|
Real estate
| |
936,367
| | |
5.7
|
%
|
|
Cash and cash equivalents (3)
| |
1,111,424
| | |
6.7
|
%
|
|
Loans receivable
| |
273,103
|
| |
1.7
|
%
|
|
Net invested assets
| |
$
|
16,460,690
|
| |
100.0
|
%
|
(1) Total fixed maturity securities had an average rating of AA- and an
average duration of 3.3 years, including cash and cash equivalents.
(2) Investment funds include an investment in publicly traded common
stock of HealthEquity, Inc. (HQY), which is carried on the equity method
of accounting. At December 31, 2015, the investment in HQY had a
carrying value of $45.4 million and a fair value of $300.1 million.
Investment funds are reported net of related liabilities of $2.2 million.
(3) Cash and cash equivalents includes trading accounts receivable from
brokers and clearing organizations, trading account securities sold but
not yet purchased and unsettled purchases.
Foreign Government Fixed Maturity Securities December 31, 2015 (Amounts in thousands) |
|
|
|
|
Carrying Value
|
| |
|
| Australia | |
$
|
230,036
|
| United Kingdom | |
165,114
|
| Canada | |
150,501
|
| Argentina | |
105,428
|
| Germany | |
51,759
|
| Brazil | |
51,405
|
|
Supranational (1)
| |
36,090
|
| Norway | |
31,656
|
| Singapore | |
6,101
|
| Colombia | |
5,502
|
| Uruguay | |
3,868
|
|
Total
| |
$
|
837,460
|
(1) Supranational represents investments in the North American
Development Bank, European Investment Bank and International Bank for
Reconstruction & Development

View source version on businesswire.com: http://www.businesswire.com/news/home/20160202006566/en/
W. R. Berkley Corporation
Karen A. Horvath
Vice
President - External
Financial Communications
203-629-3000
Source: W. R. Berkley Corporation