Agoracom

VANCOUVER, BRITISH COLUMBIA - (Dec. 18, 2007) - Oromin Explorations Ltd. (TSX VENTURE: OLE) (OTCBB: OLEPF) -

HIGHLIGHTS

- At Masato DH-131 intersects a 20 metre mineralized zone including 3.22 g/t gold over 5 metres, followed by 3,945.50 g/t gold over 1 metre (visible gold observed) and then 3.56 g/t gold over 14 metres.

- At Golouma South DH-150 intersects the deepest mineralization to-date; 9.05 g/t gold over 8 metres and 5.08 g/t gold over 19 metres.

- At Golouma West DH-156 intersects three mineralized zones; 45.03 g/t gold over 5 metres, 11.29 g/t gold over 10 metres and 7.77 g/t gold over 7 metres.

Oromin Explorations Ltd. ("Oromin") is pleased to announce additional results from the ongoing step-out and in-fill drilling program at the Golouma West, Golouma South and Masato Gold Deposits.

Oromin's 2007 and 2008 advanced exploration programs are focused on resource delineation of its Sabodala Gold Project's numerous gold zones and gold deposits. More than 75,000 metres of drilling is planned in advance of the Project's initial resource estimate scheduled for April 2008. Results from the ongoing property-wide exploration program continue to support Oromin's model of multiple gold deposits within the Sabodala Project. Please refer to general maps displayed under "investor info/articles and reports" on Oromin's website and Oromin's previous news releases for additional project information.

GOLOUMA WEST GOLD DEPOSIT

The Golouma West Gold Deposit has now been traced over 1,500 metres on surface, to over 300 metres at depth and remains open in all directions. Oromin is drilling this deposit on 40-metre, and locally, 20-metre centres using both reverse circulation and diamond core rigs.

Newly drilled mineralized intersections are listed in the attached schedule; some of the most significant are:

- 12 metres of 8.74 g/t gold from 49 metres in DH-132

- 6 metres of 10.08 g/t gold from 37 metres in DH-145

- 8 metres of 3.54 g/t gold from 57 metres in DH-147

- 16 metres of 2.11 g/t/gold from 301 metres in DH-149

- 13 metres of 6.07 g/t gold from 82 metres in DH-152

- 10 metres of 6.91 g/t gold from 128 metres in DH-154

- 5 metres of 45.03 g/t gold from 17 metres, 10 metres of 11.29 g/t gold from 142 metres and 7 metres of 7.77 g/t gold from 165 metres in DH-156

- 7 metres of 25.58 g/t gold from 138 metres in DH-157

- 7 metres of 13.41 g/t gold from 31 metres in DH-161

- 7 metres of 6.51 g/t gold from 71 metres in DH-163

- 17 metres of 3.36 g/t gold from 166 metres in DH-165

- 18 metres of 4.80 g/t gold from 238 metres in DH-168

GOLOUMA SOUTH GOLD DEPOSIT

The Golouma South Gold Deposit has now been traced over 1,000 metres on surface, to 220 metres depth and remains open in all directions. Oromin is drilling this deposit on 40-metre, and locally, 20-metre centres using both reverse circulation and diamond core rigs.

Newly drilled mineralized intersections are listed on the attached schedule; some of the most significant are:

- 7 metres of 7.12 g/t gold from 44 metres in DH-138

- 10 metres of 3.70 g/t gold from 15 metres in DH-140

- 8 metres of 9.08 g/t gold from 192 metres and 19 metres of 5.08 g/t gold from 229 metres in DH-150

MASATO GOLD DEPOSIT

The Masato Gold Deposit is coincident with a strong gold-in-soil geochemical anomaly 2.6 kilometres in length by up to 1.2 kilometres in width. Oromin's Masato Gold Deposit is located 1.2 kilometres due east of the 1.9 million ounce Sabodala Gold Deposit that is being readied for production by Mineral Deposits Ltd. (see Mineral Deposits Ltd. August 16, 2007 news release).

The Masato geochemical anomaly is also coincident with three extensive NE-trending, linear IP changeability anomalies of which only the westernmost has been drilled to date. Oromin has recently initiated in-fill drilling at 40-metre centres over portions of this large mineralized zone using both reverse circulation and diamond core rigs.

Newly drilled mineralized intersections are listed in the attached schedule; some of the most significant are:

- 5 metres of 3.22 g/t gold from 58 metres, 1 metre of 3,945.50 g/t gold from 63 metres (visible gold observed) and 14 metres of 3.56 g/t gold from 64 metres in DH-131

- 7 metres of 3.95 g/t gold from 53 metres in DH-135

- 4 metres of 3.57 g/t gold from 73 metres in DH-141

Oromin's 2007 field program has concluded for the Christmas break with field activities scheduled to re-start in early January, 2008. An additional fifteen core holes and forty reverse circulation holes were completed in 2007 for which assays are pending.

Fieldwork was carried out under the supervision of Gerald McArthur, P. Geo., a "qualified person" for the purposes of National Instrument 43-101, who has also verified the data disclosed in this news release. TSL Laboratories in Saskatoon, Saskatchewan carried out all assaying under industry-standard QA/QC procedures.

To find out more about Oromin Explorations Ltd. (TSX VENTURE:OLE), visit www.oromin.com.

On behalf of the Board of Directors of OROMIN EXPLORATIONS LTD.

Chet Idziszek, President

Cautionary Statement

This document contains "forward-looking statements" within the meaning of applicable Canadian securities regulations. All statements other than statements of historical fact herein, including, without limitation, statements regarding exploration results and plans, and our other future plans and objectives, are forward-looking statements that involve various risks and uncertainties. Such forward-looking statements include, without limitation, estimates of exploration investment and the scope of exploration programs. There can be no assurance that such statements will prove to be accurate, and future events and actual results could differ materially from those anticipated in such statements. Important factors that could cause actual results to differ materially from our expectations are disclosed in the Company's documents filed from time to time via SEDAR with the Canadian regulatory agencies to whose policies we are bound. Forward-looking statements are based on the estimates and opinions of management on the date the statements are made, and we do not undertake any obligation to update forward-looking statements should conditions or our estimates or opinions change. Forward-looking statements are subject to risks, uncertainties and other factors, including risks associated with mineral exploration, price volatility in the mineral commodities we seek, and operational and political risks.

SCHEDULE

----------------------------------------------------------------------
Oromin Explorations Ltd.
Golouma West Gold Deposit
Mineralization Intersections
----------------------------------------------------------------------
Drill              Grid         Azimuth/   From - To  Interval    Gold
Hole       Section Co-ordinate      Dip           (m)       (m)   (g/t)
----------------------------------------------------------------------
DH-132     640W    3624N/4417E  195/-65        22-25         3    12.8
                                               49-61        12    8.74
                                          Incl.56-57         1   58.57
----------------------------------------------------------------------
DH-134(i)  680W    3760N/4407E  100/-70        62-65         3    3.38
----------------------------------------------------------------------
DH-147     400W    3551N/4653E  015/-60        57-65         8    3.54
                                             102-104         2    2.51
                                             106-120        14    1.78
----------------------------------------------------------------------
DH-149     760W    3512N/4263E  015/-60      301-317        16    2.11
                                             321-326         5    3.05
----------------------------------------------------------------------
DH-151     280W    3401N/4736E  015/-60      140-144         4    1.38
----------------------------------------------------------------------
DH-152     280W    3437N/4746E  015/-60        82-95        13    6.07
                                          Incl.90-91         1   46.33
----------------------------------------------------------------------
DH-153(i)  720W    3690N/4348E  100/-55      100-106         6   10.08
                                        Incl.100-102         2   20.87
----------------------------------------------------------------------
DH-154(i)  720W    3690N/4348E  100/-80      128-138        10    6.91
                                        Incl.131-133         2   19.69
----------------------------------------------------------------------
DH-155     320W    3548N/4738E  015/-60        65-70         5    3.22
                                          Incl.68-69         1   11.04
                                              98-100         2    6.36
                                             107-109         2    7.97
                                             108-109         1   15.05
----------------------------------------------------------------------
DH-156     320W    3500N/4721E  015/-60          0-4         4    2.39
                                               17-22         5   45.03
                                          Incl.20-21         1   216.8
                                             115-117         2    3.30
                                             142-152        10   11.29
                                        Incl.148-149         1   49.35
                                             165-172         7    7.77
                                        Incl.169-170         1   34.40
----------------------------------------------------------------------
DH-157     320W    3420N/4699E  015/-60      114-115         1   42.35
                                             138-145         7   25.58
                                        Incl.139-140         1   171.9
----------------------------------------------------------------------
DH-158(i)  680W    3683N/4387E  100/-60        66-69         3    2.02
----------------------------------------------------------------------
DH-159(i)  720W    3726N/4362E  100/-55      106-114         8    1.11
----------------------------------------------------------------------
DH-160     320W    3582N/4746E  015/-50          1-8         7    3.01
----------------------------------------------------------------------
DH-161     280W    3608N/4795E  195/-60        17-23         6    1.83
                                               31-38         7   13.41
                                          Incl.35-37         2   30.42
----------------------------------------------------------------------
DH-162(i)  720W    3727N/4360E  100/-80      140-144         4   15.65
                                        Incl.142-144         2   25.31
----------------------------------------------------------------------
DH-163     280W    3642N/4804E  195/-60        71-78         7    6.51
                                          Incl.77-78         1   18.38
                                               81-87         6    2.34
----------------------------------------------------------------------
DH-164(i)  640W    3713N/4439E  100/-60        33-35         2    2.60
----------------------------------------------------------------------
DH-165     400W    3511N/4641E  015/-60      129-134         5    1.71
                                             144-148         4    2.02
                                             150-154         4    2.03
                                             166-183        17    3.36
----------------------------------------------------------------------
DH-166     200W    3353N/4811E  015/-60      135-141         6    2.84
----------------------------------------------------------------------
DH-167     160W    3341N/4849E  015/-60      108-111         3    1.71
                                             120-133        13    2.63
                                             173-174         1    14.4
----------------------------------------------------------------------
DH-168     240W    3288N/4755E  015/-60      238-256        18    4.80
                                        Incl.254-256         2   18.83
----------------------------------------------------------------------
DH-169     480W    3420N/4535E  015/-60        Results pending
----------------------------------------------------------------------
DH-170(i)  680W    3807N/4409E  100/-50        44-47         3    3.58
----------------------------------------------------------------------
DH-RC85EXT 520W    3520N/4520E  015/-60      213-216         3    1.09
----------------------------------------------------------------------
DH-RC87EXT 520W    3477N/4503E  015/-60      266-270         4    2.57
----------------------------------------------------------------------
DH-RC93EXT 640W    3417N/4440E  015/-60      171-189        18    1.79
----------------------------------------------------------------------

Mineralized intervals are based on 1-metre composite samples utilizing
a 0.5 g/t gold cut-off level with a maximum internal dilution of 2 metres.
The attitude of mineralized intervals varies and reported mineralized
intersections may not represent true widths.

(i) These holes test the North-South trending mineralized zone which
    intersects and merges with the East-West trending mineralized zones
    of the Golouma West Deposit, as shown on the location maps on Oromin's
    website.


SCHEDULE

----------------------------------------------------------------------
Oromin Explorations Ltd.
Golouma South Gold Deposit
Mineralization Intersections
----------------------------------------------------------------------
Drill              Grid         Azimuth/   From - To  Interval    Gold
Hole       Section Co-ordinate      Dip           (m)       (m)   (g/t)
----------------------------------------------------------------------
DH-138     095S    3031N/5130E  115/-55        44-51         7    7.12
                                               73-46         3    3.13
                                               79-82         3    2.23
----------------------------------------------------------------------
DH-139     075S    3050N/5150E  115/-60        53-54         1    9.19
                                               61-66         5    4.08
                                               89-93         4    4.01
----------------------------------------------------------------------
DH-140     200S    2916N/5138E  115/-55         0-11        11    1.87
----------------------------------------------------------------------
DH-143     130S    2992N/5159E  115/-45        15-25        10    3.70
----------------------------------------------------------------------
DH-144     050S    3071N/5158E  115/-60        48-53         5    8.03
                                          Incl.51-53         2   16.40
                                              99-102         3    2.48
----------------------------------------------------------------------
DH-145     050S    3061N/5180E  110/-55         7-12         5    2.91
                                               37-43         6   10.08
                                          Incl.37-40         3   17.52
----------------------------------------------------------------------
DH-148     095S    3075N/5003E  110/-60      218-222         4    3.57
----------------------------------------------------------------------
DH-150     130S    3048N/4990E  110/-60        69-70         1   10.22
                                             192-200         8    9.05
                                        Incl.197-198         1   47.84
                                             219-223         4    2.00
                                             229-248         9    5.08
----------------------------------------------------------------------

Mineralized intervals are based on 1-metre composite samples utilizing
a 0.5 g/t gold cut-off level with a maximum internal dilution of 2 metres.
The attitude of mineralized intervals varies and reported mineralized
intersections may not represent true widths.


SCHEDULE

----------------------------------------------------------------------
Oromin Explorations Ltd.
Masato Gold Deposit
Mineralization Intersections
----------------------------------------------------------------------
Drill              Grid         Azimuth/ From - To  Interval      Gold
Hole       Section Co-ordinate      Dip         (m)       (m)     (g/t)
----------------------------------------------------------------------
DH-131(i)  180N    9660N/4585E  110/-45      31-43        12      1.77
                                             49-54         5      2.32
                                             58-63         5      3.22
                                             63-64         1  3,945.50
                                             64-78        14      3.56
----------------------------------------------------------------------
DH-135     180N    9660N/4585E  110/-65      53-60         7      3.95
                                        Incl.56-57         1     16.46
                                             65-67         2      1.66
                                             95-99         4      1.76
----------------------------------------------------------------------
DH-136     100N    9590N/4534E  110/-45      38-45         7      2.02
                                             68-75         7      1.69
----------------------------------------------------------------------
DH-141     100N    9605N/5502E  110/-55      73-77         4      3.57
                                           118-122         4      1.18
----------------------------------------------------------------------
DH-142     100N    9605N/5502E  110/-70      87-91         4      1.47
                                           120-124         4      1.89
                                           151-155         4      2.15
----------------------------------------------------------------------

Mineralized intervals are based on 1-metre composite samples utilizing
a 0.5 g/t gold cut-off level with a maximum internal dilution of 2 metres.
The attitude of mineralized intervals varies and reported mineralized
intersections may not represent true widths.

(i) Visible Gold observed.

Oromin Explorations Ltd.
David Scott
Investor Relations
(604) 331-8772 or Toll Free: 1-877-529-8475
Fax: (604) 331-8773
Email: dscott@mine-tech.com
Website: www.oromin.com